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authorAchim Gottinger <achim@gentoo.org>2000-11-15 16:49:05 +0000
committerAchim Gottinger <achim@gentoo.org>2000-11-15 16:49:05 +0000
commit5cbc6b50f241178b2c8470db73d92a049ea33135 (patch)
tree75477eb036c8d93b834735c883b8f1a5569ae6c2 /net-mail/pine-maildir
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Diffstat (limited to 'net-mail/pine-maildir')
-rw-r--r--net-mail/pine-maildir/files/filter.c6902
-rw-r--r--net-mail/pine-maildir/files/os.c5673
2 files changed, 12575 insertions, 0 deletions
diff --git a/net-mail/pine-maildir/files/filter.c b/net-mail/pine-maildir/files/filter.c
new file mode 100644
index 000000000000..9264fa088b3d
--- /dev/null
+++ b/net-mail/pine-maildir/files/filter.c
@@ -0,0 +1,6902 @@
+#if !defined(lint) && !defined(DOS)
+static char rcsid[] = "$Id: filter.c,v 1.1 2000/11/15 16:46:06 achim Exp $";
+#endif
+/*----------------------------------------------------------------------
+
+ T H E P I N E M A I L S Y S T E M
+
+ Laurence Lundblade and Mike Seibel
+ Networks and Distributed Computing
+ Computing and Communications
+ University of Washington
+ Administration Builiding, AG-44
+ Seattle, Washington, 98195, USA
+ Internet: lgl@CAC.Washington.EDU
+ mikes@CAC.Washington.EDU
+
+ Please address all bugs and comments to "pine-bugs@cac.washington.edu"
+
+
+ Pine and Pico are registered trademarks of the University of Washington.
+ No commercial use of these trademarks may be made without prior written
+ permission of the University of Washington.
+
+ Pine, Pico, and Pilot software and its included text are Copyright
+ 1989-1999 by the University of Washington.
+
+ The full text of our legal notices is contained in the file called
+ CPYRIGHT, included with this distribution.
+
+
+ Pine is in part based on The Elm Mail System:
+ ***********************************************************************
+ * The Elm Mail System - Revision: 2.13 *
+ * *
+ * Copyright (c) 1986, 1987 Dave Taylor *
+ * Copyright (c) 1988, 1989 USENET Community Trust *
+ ***********************************************************************
+
+
+ ----------------------------------------------------------------------*/
+
+/*======================================================================
+ filter.c
+
+ This code provides a generalized, flexible way to allow
+ piping of data thru filters. Each filter is passed a structure
+ that it will use to hold its static data while it operates on
+ the stream of characters that are passed to it. After processing
+ it will either return or call the next filter in
+ the pipe with any character (or characters) it has ready to go. This
+ means some terminal type of filter has to be the last in the
+ chain (i.e., one that writes the passed char someplace, but doesn't
+ call another filter).
+
+ See below for more details.
+
+ The motivation is to handle MIME decoding, richtext conversion,
+ iso_code stripping and anything else that may come down the
+ pike (e.g., PEM) in an elegant fashion. mikes (920811)
+
+ TODO:
+ reasonable error handling
+
+ ====*/
+
+
+#include "headers.h"
+
+
+/*
+ * Internal prototypes
+ */
+int gf_so_readc PROTO((unsigned char *));
+int gf_so_writec PROTO((int));
+int gf_sreadc PROTO((unsigned char *));
+int gf_swritec PROTO((int));
+int gf_freadc PROTO((unsigned char *));
+int gf_fwritec PROTO((int));
+void gf_terminal PROTO((FILTER_S *, int));
+char *gf_filter_puts PROTO((char *));
+void gf_filter_eod PROTO((void));
+void gf_error PROTO((char *));
+void gf_8bit_put PROTO((FILTER_S *, int));
+int so_reaquire PROTO((STORE_S *));
+void *so_file_open PROTO((STORE_S *));
+int so_cs_writec PROTO((int, STORE_S *));
+int so_pico_writec PROTO((int, STORE_S *));
+int so_file_writec PROTO((int, STORE_S *));
+int so_cs_readc PROTO((unsigned char *, STORE_S *));
+int so_pico_readc PROTO((unsigned char *, STORE_S *));
+int so_file_readc PROTO((unsigned char *, STORE_S *));
+int so_cs_puts PROTO((STORE_S *, char *));
+int so_pico_puts PROTO((STORE_S *, char *));
+int so_file_puts PROTO((STORE_S *, char *));
+
+
+/*
+ * GENERALIZED STORAGE FUNCTIONS. Idea is to allow creation of
+ * storage objects that can be written into and read from without
+ * the caller knowing if the storage is core or in a file
+ * or whatever.
+ */
+#define MSIZE_INIT 8192
+#define MSIZE_INC 4096
+
+
+/*
+ * System specific options
+ */
+#ifdef DOS
+#define NO_PIPE
+#endif
+#if defined(DOS) || defined(OS2)
+#define CRLF_NEWLINES
+#endif
+
+/*
+ * Various parms for opening and creating files directly and via stdio.
+ * NOTE: If "binary" mode file exists, use it.
+ */
+#ifdef O_BINARY
+#define STDIO_READ "rb"
+#define STDIO_APPEND "a+b"
+#else
+#define O_BINARY 0
+#define STDIO_READ "r"
+#define STDIO_APPEND "a+"
+#endif
+
+#define OP_FL_RDWR (O_RDWR | O_CREAT | O_APPEND | O_BINARY)
+#define OP_FL_RDONLY (O_RDONLY | O_BINARY)
+
+#ifdef S_IREAD
+#define OP_MD_USER (S_IREAD | S_IWRITE)
+#else
+#define OP_MD_USER 0600
+#endif
+
+#ifdef S_IRUSR
+#define OP_MD_ALL (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | \
+ S_IROTH | S_IWOTH)
+#else
+#define OP_MD_ALL 0666
+#endif
+
+
+/*
+ * allocate resources associated with the specified type of
+ * storage. If requesting a named file object, open it for
+ * appending, else just open a temp file.
+ *
+ * return the filled in storage object
+ */
+STORE_S *
+so_get(source, name, rtype)
+ SourceType source; /* requested storage type */
+ char *name; /* file name */
+ int rtype; /* file access type */
+{
+ STORE_S *so = (STORE_S *)fs_get(sizeof(STORE_S));
+
+ memset(so, 0, sizeof(STORE_S));
+ so->flags |= rtype;
+
+ if(name) /* stash the name */
+ so->name = cpystr(name);
+#ifdef DOS
+ else if(source == TmpFileStar || source == FileStar){
+ /*
+ * Coerce to TmpFileStar. The MSC library's "tmpfile()"
+ * doesn't observe the "TMP" or "TEMP" environment vars and
+ * always wants to write "\". This is problematic in shared,
+ * networked environments.
+ */
+ source = TmpFileStar;
+ so->name = temp_nam(NULL, "pi");
+ }
+#else
+ else if(source == TmpFileStar) /* make one up! */
+ so->name = temp_nam(NULL, "pine-tmp");
+#endif
+
+ so->src = source;
+ if(so->src == FileStar || so->src == TmpFileStar){
+ so->writec = so_file_writec;
+ so->readc = so_file_readc;
+ so->puts = so_file_puts;
+
+ /*
+ * The reason for both FileStar and TmpFileStar types is
+ * that, named or unnamed, TmpFileStar's are unlinked
+ * when the object is given back to the system. This is
+ * useful for keeping us from running out of file pointers as
+ * the pointer associated with the object can be temporarily
+ * returned to the system without destroying the object.
+ *
+ * The programmer is warned to be careful not to assign the
+ * TmpFileStar type to any files that are expected to remain
+ * after the dust has settled!
+ */
+ if(so->name){
+ if(!(so->txt = so_file_open(so))){
+ dprint(1, (debugfile, "so_get error: %s : %s", so->name,
+ error_description(errno)));
+ fs_give((void **)&so->name);
+ fs_give((void **)&so); /* so freed & set to NULL */
+ }
+ }
+ else{
+ if(!(so->txt = (void *) create_tmpfile())){
+ dprint(1, (debugfile, "so_get error: tmpfile : %s",
+ error_description(errno)));
+ fs_give((void **)&so); /* so freed & set to NULL */
+ }
+ }
+ }
+ else if(so->src == PicoText){
+ so->writec = so_pico_writec;
+ so->readc = so_pico_readc;
+ so->puts = so_pico_puts;
+ if(!(so->txt = pico_get())){
+ dprint(1, (debugfile, "so_get error: alloc of pico text space"));
+ if(so->name)
+ fs_give((void **)&so->name);
+ fs_give((void **)&so); /* so freed & set to NULL */
+ }
+ }
+ else{
+ so->writec = so_cs_writec;
+ so->readc = so_cs_readc;
+ so->puts = so_cs_puts;
+ so->txt = (void *)fs_get((size_t) MSIZE_INIT * sizeof(char));
+ so->dp = so->eod = (unsigned char *) so->txt;
+ so->eot = so->dp + MSIZE_INIT;
+ memset(so->eod, 0, so->eot - so->eod);
+ }
+
+ return(so);
+}
+
+
+/*
+ * so_give - free resources associated with a storage object and then
+ * the object itself.
+ */
+void
+so_give(so)
+STORE_S **so;
+{
+ if(!so)
+ return;
+
+ if((*so)->src == FileStar || (*so)->src == TmpFileStar){
+ if((*so)->txt)
+ fclose((FILE *)(*so)->txt); /* disassociate from storage */
+
+ if((*so)->name && (*so)->src == TmpFileStar)
+ unlink((*so)->name); /* really disassociate! */
+ }
+ else if((*so)->txt && (*so)->src == PicoText)
+ pico_give((*so)->txt);
+ else if((*so)->txt)
+ fs_give((void **)&((*so)->txt));
+
+ if((*so)->name)
+ fs_give((void **)&((*so)->name)); /* blast the name */
+
+ fs_give((void **)so); /* release the object */
+}
+
+
+/*
+ * so_file_open
+ */
+void *
+so_file_open(so)
+ STORE_S *so;
+{
+ char *type = ((so->flags) & WRITE_ACCESS) ? STDIO_APPEND : STDIO_READ;
+ int flags = ((so->flags) & WRITE_ACCESS) ? OP_FL_RDWR : OP_FL_RDONLY,
+ mode = (((so->flags) & OWNER_ONLY) || so->src == TmpFileStar)
+ ? OP_MD_USER : OP_MD_ALL,
+ fd;
+
+ /*
+ * Use open instead of fopen so we can make temp files private.
+ */
+ return(((fd = open(so->name, flags, mode)) >= 0)
+ ? (so->txt = (void *) fdopen(fd, type)) : NULL);
+}
+
+
+/*
+ * put a character into the specified storage object,
+ * expanding if neccessary
+ *
+ * return 1 on success and 0 on failure
+ */
+int
+so_cs_writec(c, so)
+ int c;
+ STORE_S *so;
+{
+ if(so->dp >= so->eot){
+ size_t cur_o = so->dp - (unsigned char *) so->txt;
+ size_t data_o = so->eod - (unsigned char *) so->txt;
+ size_t size = (so->eot - (unsigned char *) so->txt) + MSIZE_INC;
+
+ fs_resize(&so->txt, size * sizeof(char));
+ so->dp = (unsigned char *) so->txt + cur_o;
+ so->eod = (unsigned char *) so->txt + data_o;
+ so->eot = (unsigned char *) so->txt + size;
+ memset(so->eod, 0, so->eot - so->eod);
+ }
+
+ *so->dp++ = (unsigned char) c;
+ if(so->dp > so->eod)
+ so->eod = so->dp;
+
+ return(1);
+}
+
+int
+so_pico_writec(c, so)
+ int c;
+ STORE_S *so;
+{
+ unsigned char ch = (unsigned char) c;
+
+ return(pico_writec(so->txt, ch));
+}
+
+int
+so_file_writec(c, so)
+ int c;
+ STORE_S *so;
+{
+ unsigned char ch = (unsigned char) c;
+ int rv = 0;
+
+ if(so->txt || so_reaquire(so))
+ do
+ rv = fwrite(&ch,sizeof(unsigned char),(size_t)1,(FILE *)so->txt);
+ while(!rv && ferror((FILE *)so->txt) && errno == EINTR);
+
+ return(rv);
+}
+
+
+/*
+ * get a character from the specified storage object.
+ *
+ * return 1 on success and 0 on failure
+ */
+int
+so_cs_readc(c, so)
+ unsigned char *c;
+ STORE_S *so;
+{
+ return((so->dp < so->eod) ? *c = *(so->dp)++, 1 : 0);
+}
+
+int
+so_pico_readc(c, so)
+ unsigned char *c;
+ STORE_S *so;
+{
+ return(pico_readc(so->txt, c));
+}
+
+int
+so_file_readc(c, so)
+ unsigned char *c;
+ STORE_S *so;
+{
+ int rv = 0;
+
+ if(so->txt || so_reaquire(so))
+ do
+ rv = fread(c, sizeof(char), (size_t)1, (FILE *)so->txt);
+ while(!rv && ferror((FILE *)so->txt) && errno == EINTR);
+
+ return(rv);
+}
+
+
+/*
+ * write a string into the specified storage object,
+ * expanding if necessary (and cheating if the object
+ * happens to be a file!)
+ *
+ * return 1 on success and 0 on failure
+ */
+int
+so_cs_puts(so, s)
+ STORE_S *so;
+ char *s;
+{
+ int slen = strlen(s);
+
+ if(so->dp + slen >= so->eot){
+ register size_t cur_o = so->dp - (unsigned char *) so->txt;
+ register size_t data_o = so->eod - (unsigned char *) so->txt;
+ register size_t len = so->eot - (unsigned char *) so->txt;
+ while(len <= cur_o + slen + 1)
+ len += MSIZE_INC; /* need to resize! */
+
+ fs_resize(&so->txt, len * sizeof(char));
+ so->dp = (unsigned char *)so->txt + cur_o;
+ so->eod = (unsigned char *)so->txt + data_o;
+ so->eot = (unsigned char *)so->txt + len;
+ memset(so->eod, 0, so->eot - so->eod);
+ }
+
+ memcpy(so->dp, s, slen);
+ so->dp += slen;
+ if(so->dp > so->eod)
+ so->eod = so->dp;
+
+ return(1);
+}
+
+int
+so_pico_puts(so, s)
+ STORE_S *so;
+ char *s;
+{
+ return(pico_puts(so->txt, s));
+}
+
+int
+so_file_puts(so, s)
+ STORE_S *so;
+ char *s;
+{
+ int rv = *s ? 0 : 1;
+
+ if(!rv && (so->txt || so_reaquire(so)))
+ do
+ rv = fwrite(s, strlen(s)*sizeof(char), (size_t)1, (FILE *)so->txt);
+ while(!rv && ferror((FILE *)so->txt) && errno == EINTR);
+
+ return(rv);
+}
+
+
+/*
+ *
+ */
+int
+so_nputs(so, s, n)
+ STORE_S *so;
+ char *s;
+ long n;
+{
+ while(n--)
+ if(!so_writec((unsigned char) *s++, so))
+ return(0); /* ERROR putting char ! */
+
+ return(1);
+}
+
+
+
+/*
+ * Position the storage object's pointer to the given offset
+ * from the start of the object's data.
+ */
+int
+so_seek(so, pos, orig)
+ STORE_S *so;
+ long pos;
+ int orig;
+{
+ if(so->src == CharStar){
+ switch(orig){
+ case 0 : /* SEEK_SET */
+ return((pos < so->eod - (unsigned char *) so->txt)
+ ? so->dp = (unsigned char *)so->txt + pos, 0 : -1);
+ case 1 : /* SEEK_CUR */
+ return((pos > 0)
+ ? ((pos < so->eod - so->dp) ? so->dp += pos, 0: -1)
+ : ((pos < 0)
+ ? ((-pos < so->dp - (unsigned char *)so->txt)
+ ? so->dp += pos, 0 : -1)
+ : 0));
+ case 2 : /* SEEK_END */
+ return((pos < so->eod - (unsigned char *) so->txt)
+ ? so->dp = so->eod - pos, 0 : -1);
+ default :
+ return(-1);
+ }
+ }
+ else if(so->src == PicoText)
+ return(pico_seek(so->txt, pos, orig));
+ else /* FileStar or TmpFileStar */
+ return((so->txt || so_reaquire(so))
+ ? fseek((FILE *)so->txt,pos,orig)
+ : -1);
+}
+
+
+/*
+ * Change the given storage object's size to that specified. If size
+ * is less than the current size, the internal pointer is adjusted and
+ * all previous data beyond the given size is lost.
+ *
+ * Returns 0 on failure.
+ */
+int
+so_truncate(so, size)
+ STORE_S *so;
+ long size;
+{
+ if(so->src == CharStar){
+ if(so->eod < (unsigned char *) so->txt + size){ /* alloc! */
+ unsigned char *newtxt = (unsigned char *) so->txt;
+ register size_t len = so->eot - (unsigned char *) so->txt;
+
+ while(len <= size)
+ len += MSIZE_INC; /* need to resize! */
+
+ if(len > so->eot - (unsigned char *) newtxt){
+ fs_resize((void **) &newtxt, len * sizeof(char));
+ so->eot = newtxt + len;
+ so->eod = newtxt + (so->eod - (unsigned char *) so->txt);
+ memset(so->eod, 0, so->eot - so->eod);
+ }
+
+ so->eod = newtxt + size;
+ so->dp = newtxt + (so->dp - (unsigned char *) so->txt);
+ so->txt = newtxt;
+ }
+ else if(so->eod > (unsigned char *) so->txt + size){
+ if(so->dp > (so->eod = (unsigned char *)so->txt + size))
+ so->dp = so->eod;
+
+ memset(so->eod, 0, so->eot - so->eod);
+ }
+
+ return(1);
+ }
+ else if(so->src == PicoText){
+ fatal("programmer botch: unsupported so_truncate call");
+ /*NOTREACHED*/
+ }
+ else /* FileStar or TmpFileStar */
+ return(fflush((FILE *) so->txt) != EOF
+ && fseek((FILE *) so->txt, size, 0) == 0
+ && ftruncate(fileno((FILE *)so->txt), size) == 0);
+}
+
+
+/*
+ * so_release - a rather misnamed function. the idea is to release
+ * what system resources we can (e.g., open files).
+ * while maintaining a reference to it.
+ * it's up to the functions that deal with this object
+ * next to re-aquire those resources.
+ */
+int
+so_release(so)
+STORE_S *so;
+{
+ if(so->txt && so->name && (so->src == FileStar || so->src == TmpFileStar)){
+ if(fgetpos((FILE *)so->txt, (fpos_t *)&(so->used)) == 0){
+ fclose((FILE *)so->txt); /* free the handle! */
+ so->txt = NULL;
+ }
+ }
+
+ return(1);
+}
+
+
+/*
+ * so_reaquire - get any previously released system resources we
+ * may need for the given storage object.
+ * NOTE: at the moment, only FILE * types of objects are
+ * effected, so it only needs to be called before
+ * references to them.
+ *
+ */
+so_reaquire(so)
+STORE_S *so;
+{
+ int rv = 1;
+
+ if(!so->txt && (so->src == FileStar || so->src == TmpFileStar)){
+ if(!(so->txt = so_file_open(so))){
+ q_status_message2(SM_ORDER,3,5, "ERROR reopening %s : %s", so->name,
+ error_description(errno));
+ rv = 0;
+ }
+ else if(fsetpos((FILE *)so->txt, (fpos_t *)&(so->used))){
+ q_status_message2(SM_ORDER, 3, 5, "ERROR positioning in %s : %s",
+ so->name, error_description(errno));
+ rv = 0;
+ }
+ }
+
+ return(rv);
+}
+
+
+/*
+ * so_text - return a pointer to the text the store object passed
+ */
+void *
+so_text(so)
+STORE_S *so;
+{
+ return((so) ? so->txt : NULL);
+}
+
+
+/*
+ * END OF GENERALIZE STORAGE FUNCTIONS
+ */
+
+
+/*
+ * Start of filters, pipes and various support functions
+ */
+
+/*
+ * pointer to first function in a pipe, and pointer to last filter
+ */
+FILTER_S *gf_master = NULL;
+static gf_io_t last_filter;
+static char *gf_error_string;
+static long gf_byte_count;
+static jmp_buf gf_error_state;
+
+
+/*
+ * A list of states used by the various filters. Reused in many filters.
+ */
+#define DFL 0
+#define EQUAL 1
+#define HEX 2
+#define WSPACE 3
+#define CCR 4
+#define CLF 5
+#define TOKEN 6
+#define TAG 7
+#define HANDLE 8
+#define HDATA 9
+
+
+
+/*
+ * Macros to reduce function call overhead associated with calling
+ * each filter for each byte filtered, and to minimize filter structure
+ * dereferences. NOTE: "queuein" has to do with putting chars into the
+ * filter structs data queue. So, writing at the queuein offset is
+ * what a filter does to pass processed data out of itself. Ditto for
+ * queueout. This explains the FI --> queueout init stuff below.
+ */
+#define GF_QUE_START(F) (&(F)->queue[0])
+#define GF_QUE_END(F) (&(F)->queue[GF_MAXBUF - 1])
+
+#define GF_IP_INIT(F) ip = (F) ? &(F)->queue[(F)->queuein] : NULL
+#define GF_EIB_INIT(F) eib = (F) ? GF_QUE_END(F) : NULL
+#define GF_OP_INIT(F) op = (F) ? &(F)->queue[(F)->queueout] : NULL
+#define GF_EOB_INIT(F) eob = (F) ? &(F)->queue[(F)->queuein] : NULL
+
+#define GF_IP_END(F) (F)->queuein = ip - GF_QUE_START(F)
+#define GF_OP_END(F) (F)->queueout = op - GF_QUE_START(F)
+
+#define GF_INIT(FI, FO) register unsigned char *GF_OP_INIT(FI); \
+ register unsigned char *GF_EOB_INIT(FI); \
+ register unsigned char *GF_IP_INIT(FO); \
+ register unsigned char *GF_EIB_INIT(FO);
+
+#define GF_CH_RESET(F) (op = eob = GF_QUE_START(F), \
+ (F)->queueout = (F)->queuein = 0)
+
+#define GF_END(FI, FO) (GF_OP_END(FI), GF_IP_END(FO))
+
+#define GF_FLUSH(F) ((int)(GF_IP_END(F), (*(F)->f)((F), GF_DATA), \
+ GF_IP_INIT(F), GF_EIB_INIT(F)))
+
+#define GF_PUTC(F, C) ((int)(*ip++ = (C), (ip >= eib) ? GF_FLUSH(F) : 1))
+
+#define GF_GETC(F, C) ((op < eob) ? (((C) = *op++), 1) : GF_CH_RESET(F))
+
+
+/*
+ * Generalized getc and putc routines. provided here so they don't
+ * need to be re-done elsewhere to
+ */
+
+/*
+ * pointers to objects to be used by the generic getc and putc
+ * functions
+ */
+static struct gf_io_struct {
+ FILE *file;
+ char *txtp;
+ unsigned long n;
+} gf_in, gf_out;
+
+
+#define GF_SO_STACK struct gf_so_stack
+static GF_SO_STACK {
+ STORE_S *so;
+ GF_SO_STACK *next;
+} *gf_so_in, *gf_so_out;
+
+
+/*
+ * setup to use and return a pointer to the generic
+ * getc function
+ */
+void
+gf_set_readc(gc, txt, len, src)
+ gf_io_t *gc;
+ void *txt;
+ unsigned long len;
+ SourceType src;
+{
+ gf_in.n = len;
+ if(src == FileStar){
+ gf_in.file = (FILE *)txt;
+ fseek(gf_in.file, 0L, 0);
+ *gc = gf_freadc;
+ }
+ else{
+ gf_in.txtp = (char *)txt;
+ *gc = gf_sreadc;
+ }
+}
+
+
+/*
+ * setup to use and return a pointer to the generic
+ * putc function
+ */
+void
+gf_set_writec(pc, txt, len, src)
+ gf_io_t *pc;
+ void *txt;
+ unsigned long len;
+ SourceType src;
+{
+ gf_out.n = len;
+ if(src == FileStar){
+ gf_out.file = (FILE *)txt;
+ *pc = gf_fwritec;
+ }
+ else{
+ gf_out.txtp = (char *)txt;
+ *pc = gf_swritec;
+ }
+}
+
+
+/*
+ * setup to use and return a pointer to the generic
+ * getc function
+ */
+void
+gf_set_so_readc(gc, so)
+ gf_io_t *gc;
+ STORE_S *so;
+{
+ GF_SO_STACK *sp = (GF_SO_STACK *) fs_get(sizeof(GF_SO_STACK));
+
+ sp->so = so;
+ sp->next = gf_so_in;
+ gf_so_in = sp;
+ *gc = gf_so_readc;
+}
+
+
+void
+gf_clear_so_readc(so)
+ STORE_S *so;
+{
+ GF_SO_STACK *sp;
+
+ if(sp = gf_so_in){
+ if(so == sp->so){
+ gf_so_in = gf_so_in->next;
+ fs_give((void **) &sp);
+ }
+ else
+ panic("Programmer botch: Can't unstack store readc");
+ }
+ else
+ panic("Programmer botch: NULL store clearing store readc");
+}
+
+
+/*
+ * setup to use and return a pointer to the generic
+ * putc function
+ */
+void
+gf_set_so_writec(pc, so)
+ gf_io_t *pc;
+ STORE_S *so;
+{
+ GF_SO_STACK *sp = (GF_SO_STACK *) fs_get(sizeof(GF_SO_STACK));
+
+ sp->so = so;
+ sp->next = gf_so_out;
+ gf_so_out = sp;
+ *pc = gf_so_writec;
+}
+
+
+void
+gf_clear_so_writec(so)
+ STORE_S *so;
+{
+ GF_SO_STACK *sp;
+
+ if(sp = gf_so_out){
+ if(so == sp->so){
+ gf_so_out = gf_so_out->next;
+ fs_give((void **) &sp);
+ }
+ else
+ panic("Programmer botch: Can't unstack store writec");
+ }
+ else
+ panic("Programmer botch: NULL store clearing store writec");
+}
+
+
+/*
+ * put the character to the object previously defined
+ */
+int
+gf_so_writec(c)
+int c;
+{
+ return(so_writec(c, gf_so_out->so));
+}
+
+
+/*
+ * get a character from an object previously defined
+ */
+int
+gf_so_readc(c)
+unsigned char *c;
+{
+ return(so_readc(c, gf_so_in->so));
+}
+
+
+/* get a character from a file */
+/* assumes gf_out struct is filled in */
+int
+gf_freadc(c)
+unsigned char *c;
+{
+ int rv = 0;
+
+ do {
+ errno = 0;
+ clearerr(gf_in.file);
+ rv = fread(c, sizeof(unsigned char), (size_t)1, gf_in.file);
+ } while(!rv && ferror(gf_in.file) && errno == EINTR);
+
+ return(rv);
+}
+
+
+/* put a character to a file */
+/* assumes gf_out struct is filled in */
+int
+gf_fwritec(c)
+ int c;
+{
+ unsigned char ch = (unsigned char)c;
+ int rv = 0;
+
+ do
+ rv = fwrite(&ch, sizeof(unsigned char), (size_t)1, gf_out.file);
+ while(!rv && ferror(gf_out.file) && errno == EINTR);
+
+ return(rv);
+}
+
+
+/* get a character from a string, return nonzero if things OK */
+/* assumes gf_out struct is filled in */
+int
+gf_sreadc(c)
+unsigned char *c;
+{
+ return((gf_in.n) ? *c = *(gf_in.txtp)++, gf_in.n-- : 0);
+}
+
+
+/* put a character into a string, return nonzero if things OK */
+/* assumes gf_out struct is filled in */
+int
+gf_swritec(c)
+ int c;
+{
+ return((gf_out.n) ? *(gf_out.txtp)++ = c, gf_out.n-- : 0);
+}
+
+
+/*
+ * output the given string with the given function
+ */
+int
+gf_puts(s, pc)
+ register char *s;
+ gf_io_t pc;
+{
+ while(*s != '\0')
+ if(!(*pc)((unsigned char)*s++))
+ return(0); /* ERROR putting char ! */
+
+ return(1);
+}
+
+
+/*
+ * output the given string with the given function
+ */
+int
+gf_nputs(s, n, pc)
+ register char *s;
+ long n;
+ gf_io_t pc;
+{
+ while(n--)
+ if(!(*pc)((unsigned char)*s++))
+ return(0); /* ERROR putting char ! */
+
+ return(1);
+}
+
+
+/*
+ * Start of generalized filter routines
+ */
+
+/*
+ * initializing function to make sure list of filters is empty.
+ */
+void
+gf_filter_init()
+{
+ FILTER_S *flt, *fltn = gf_master;
+
+ while((flt = fltn) != NULL){ /* free list of old filters */
+ fltn = flt->next;
+ fs_give((void **)&flt);
+ }
+
+ gf_master = NULL;
+ gf_error_string = NULL; /* clear previous errors */
+ gf_byte_count = 0L; /* reset counter */
+}
+
+
+
+/*
+ * link the given filter into the filter chain
+ */
+void
+gf_link_filter(f, data)
+ filter_t f;
+ void *data;
+{
+ FILTER_S *new, *tail;
+
+#ifdef CRLF_NEWLINES
+ /*
+ * If the system's native EOL convention is CRLF, then there's no
+ * point in passing data thru a filter that's not doing anything
+ */
+ if(f == gf_nvtnl_local || f == gf_local_nvtnl)
+ return;
+#endif
+
+ new = (FILTER_S *)fs_get(sizeof(FILTER_S));
+ memset(new, 0, sizeof(FILTER_S));
+
+ new->f = f; /* set the function pointer */
+ new->opt = data; /* set any optional parameter data */
+ (*f)(new, GF_RESET); /* have it setup initial state */
+
+ if(tail = gf_master){ /* or add it to end of existing */
+ while(tail->next) /* list */
+ tail = tail->next;
+
+ tail->next = new;
+ }
+ else /* attach new struct to list */
+ gf_master = new; /* start a new list */
+}
+
+
+/*
+ * terminal filter, doesn't call any other filters, typically just does
+ * something with the output
+ */
+void
+gf_terminal(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ if(flg == GF_DATA){
+ GF_INIT(f, f);
+
+ while(op < eob)
+ if((*last_filter)(*op++) <= 0) /* generic terminal filter */
+ gf_error(errno ? error_description(errno) : "Error writing pipe");
+
+ GF_CH_RESET(f);
+ }
+ else if(flg == GF_RESET)
+ errno = 0; /* prepare for problems */
+}
+
+
+/*
+ * set some outside gf_io_t function to the terminal function
+ * for example: a function to write a char to a file or into a buffer
+ */
+void
+gf_set_terminal(f) /* function to set generic filter */
+ gf_io_t f;
+{
+ last_filter = f;
+}
+
+
+/*
+ * common function for filter's to make it known that an error
+ * has occurred. Jumps back to gf_pipe with error message.
+ */
+void
+gf_error(s)
+ char *s;
+{
+ /* let the user know the error passed in s */
+ gf_error_string = s;
+ longjmp(gf_error_state, 1);
+}
+
+
+/*
+ * The routine that shoves each byte through the chain of
+ * filters. It sets up error handling, and the terminal function.
+ * Then loops getting bytes with the given function, and passing
+ * it on to the first filter in the chain.
+ */
+char *
+gf_pipe(gc, pc)
+ gf_io_t gc, pc; /* how to get a character */
+{
+ unsigned char c;
+
+#if defined(DOS) && !defined(_WINDOWS)
+ MoveCursor(0, 1);
+ StartInverse();
+#endif
+
+ dprint(4, (debugfile, "-- gf_pipe: "));
+
+ /*
+ * set up for any errors a filter may encounter
+ */
+ if(setjmp(gf_error_state)){
+#if defined(DOS) && !defined(_WINDOWS)
+ ibmputc(' ');
+ EndInverse();
+#endif
+ dprint(4, (debugfile, "ERROR: %s\n",
+ gf_error_string ? gf_error_string : "NULL"));
+ return(gf_error_string); /* */
+ }
+
+ /*
+ * set and link in the terminal filter
+ */
+ gf_set_terminal(pc);
+ gf_link_filter(gf_terminal, NULL);
+
+ /*
+ * while there are chars to process, send them thru the pipe.
+ * NOTE: it's necessary to enclose the loop below in a block
+ * as the GF_INIT macro calls some automatic var's into
+ * existence. It can't be placed at the start of gf_pipe
+ * because its useful for us to be called without filters loaded
+ * when we're just being used to copy bytes between storage
+ * objects.
+ */
+ {
+ GF_INIT(gf_master, gf_master);
+
+ while((*gc)(&c)){
+ gf_byte_count++;
+#ifdef DOS
+ if(!(gf_byte_count & 0x3ff))
+#ifdef _WINDOWS
+ /* Under windows we yeild to allow event processing.
+ * Progress display is handled throught the alarm()
+ * mechinism.
+ */
+ mswin_yeild ();
+#else
+ /* Poor PC still needs spinning bar */
+ ibmputc("/-\\|"[((int) gf_byte_count >> 10) % 4]);
+ MoveCursor(0, 1);
+#endif
+#endif
+
+ GF_PUTC(gf_master, c & 0xff);
+ }
+
+ /*
+ * toss an end-of-data marker down the pipe to give filters
+ * that have any buffered data the opportunity to dump it
+ */
+ GF_FLUSH(gf_master);
+ (*gf_master->f)(gf_master, GF_EOD);
+ }
+
+#if defined(DOS) && !defined(_WINDOWS)
+ ibmputc(' ');
+ EndInverse();
+#endif
+
+ dprint(1, (debugfile, "done.\n"));
+ return(NULL); /* everything went OK */
+}
+
+
+/*
+ * return the number of bytes piped so far
+ */
+long
+gf_bytes_piped()
+{
+ return(gf_byte_count);
+}
+
+
+/*
+ * filter the given input with the given command
+ *
+ * Args: cmd -- command string to execute
+ * prepend -- string to prepend to filtered input
+ * source_so -- storage object containing data to be filtered
+ * pc -- function to write filtered output with
+ * aux_filters -- additional filters to pass data thru after "cmd"
+ *
+ * Returns: NULL on sucess, reason for failure (not alloc'd!) on error
+ */
+char *
+gf_filter(cmd, prepend, source_so, pc, aux_filters)
+ char *cmd, *prepend;
+ STORE_S *source_so;
+ gf_io_t pc;
+ FILTLIST_S *aux_filters;
+{
+ unsigned char c;
+ int flags;
+ char *errstr = NULL, buf[MAILTMPLEN], *rfile = NULL;
+ PIPE_S *fpipe;
+
+ dprint(4, (debugfile, "so_filter: \"%s\"\n", cmd));
+
+ gf_filter_init();
+ for( ; aux_filters && aux_filters->filter; aux_filters++)
+ gf_link_filter(aux_filters->filter, aux_filters->data);
+
+ gf_set_terminal(pc);
+ gf_link_filter(gf_terminal, NULL);
+
+ /*
+ * Spawn filter feeding it data, and reading what it writes.
+ */
+ so_seek(source_so, 0L, 0);
+#ifdef NO_PIPE
+ /*
+ * When there're no pipes for IPC, use an output file to collect
+ * the result...
+ */
+ flags = PIPE_WRITE | PIPE_NOSHELL | PIPE_RESET;
+ rfile = temp_nam(NULL, "pf");
+#else
+ flags = PIPE_WRITE | PIPE_READ | PIPE_NOSHELL | PIPE_RESET;
+#endif
+
+ if(fpipe = open_system_pipe(cmd, rfile ? &rfile : NULL, NULL, flags, 0)){
+#ifdef NO_PIPE
+ if(prepend && (fputs(prepend, fpipe->out.f) == EOF
+ || fputc('\n', fpipe->out.f) == EOF))
+ errstr = error_description(errno);
+
+ /*
+ * Write the output, and deal with the result later...
+ */
+ while(!errstr && so_readc(&c, source_so))
+ if(fputc(c, fpipe->out.f) == EOF)
+ errstr = error_description(errno);
+#else
+#ifdef NON_BLOCKING_IO
+ int n;
+
+ if(fcntl(fileno(fpipe->in.f), F_SETFL, NON_BLOCKING_IO) == -1)
+ errstr = "Can't set up non-blocking IO";
+
+ if(prepend && (fputs(prepend, fpipe->out.f) == EOF
+ || fputc('\n', fpipe->out.f) == EOF))
+ errstr = error_description(errno);
+
+ while(!errstr){
+ /* if the pipe can't hold a K we're sunk (too bad PIPE_MAX
+ * isn't ubiquitous ;).
+ */
+ for(n = 0; !errstr && fpipe->out.f && n < 1024; n++)
+ if(!so_readc(&c, source_so)){
+ fclose(fpipe->out.f);
+ fpipe->out.f = NULL;
+ }
+ else if(fputc(c, fpipe->out.f) == EOF)
+ errstr = error_description(errno);
+
+ /*
+ * Note: We clear errno here and test below, before ferror,
+ * because *some* stdio implementations consider
+ * EAGAIN and EWOULDBLOCK equivalent to EOF...
+ */
+ errno = 0;
+ clearerr(fpipe->in.f); /* fix from <cananian@cananian.mit.edu> */
+
+ while(!errstr && fgets(buf, MAILTMPLEN, fpipe->in.f))
+ errstr = gf_filter_puts(buf);
+
+ /* then fgets failed! */
+ if(!errstr && !(errno == EAGAIN || errno == EWOULDBLOCK)){
+ if(feof(fpipe->in.f)) /* nothing else interesting! */
+ break;
+ else if(ferror(fpipe->in.f)) /* bummer. */
+ errstr = error_description(errno);
+ }
+ else if(errno == EAGAIN || errno == EWOULDBLOCK)
+ clearerr(fpipe->in.f);
+ }
+#else
+ if(prepend && (fputs(prepend, fpipe->out.f) == EOF
+ || fputc('\n', fpipe->out.f) == EOF))
+ errstr = error_description(errno);
+
+ /*
+ * Well, do the best we can, and hope the pipe we're writing
+ * doesn't fill up before we start reading...
+ */
+ while(!errstr && so_readc(&c, source_so))
+ if(fputc(c, fpipe->out.f) == EOF)
+ errstr = error_description(errno);
+
+ fclose(fpipe->out.f);
+ fpipe->out.f = NULL;
+ while(!errstr && fgets(buf, MAILTMPLEN, fpipe->in.f))
+ errstr = gf_filter_puts(buf);
+#endif /* NON_BLOCKING */
+#endif /* NO_PIPE */
+
+ gf_filter_eod();
+
+ if(close_system_pipe(&fpipe) && !errstr)
+ errstr = "Pipe command returned error.";
+
+#ifdef NO_PIPE
+ /*
+ * retrieve filters result...
+ */
+ {
+ FILE *fp;
+
+ if(fp = fopen(rfile, STDIO_READ)){
+ while(!errstr && fgets(buf, MAILTMPLEN, fp))
+ errstr = gf_filter_puts(buf);
+
+ fclose(fp);
+ }
+
+ fs_give((void **)&rfile);
+ }
+#endif
+ }
+
+ return(errstr);
+}
+
+
+/*
+ * gf_filter_puts - write the given string down the filter's pipe
+ */
+char *
+gf_filter_puts(s)
+ register char *s;
+{
+ GF_INIT(gf_master, gf_master);
+
+ /*
+ * set up for any errors a filter may encounter
+ */
+ if(setjmp(gf_error_state)){
+ dprint(4, (debugfile, "ERROR: gf_filter_puts: %s\n",
+ gf_error_string ? gf_error_string : "NULL"));
+ return(gf_error_string);
+ }
+
+ while(*s)
+ GF_PUTC(gf_master, (*s++) & 0xff);
+
+ GF_END(gf_master, gf_master);
+ return(NULL);
+}
+
+
+/*
+ * gf_filter_eod - flush pending data filter's input queue and deliver
+ * the GF_EOD marker.
+ */
+void
+gf_filter_eod()
+{
+ GF_INIT(gf_master, gf_master);
+ GF_FLUSH(gf_master);
+ (*gf_master->f)(gf_master, GF_EOD);
+}
+
+
+
+
+/*
+ * END OF PIPE SUPPORT ROUTINES, BEGINNING OF FILTERS
+ *
+ * Filters MUST use the specified interface (pointer to filter
+ * structure, the unsigned character buffer in that struct, and a
+ * cmd flag), and pass each resulting octet to the next filter in the
+ * chain. Only the terminal filter need not call another filter.
+ * As a result, filters share a pretty general structure.
+ * Typically three main conditionals separate initialization from
+ * data from end-of-data command processing.
+ *
+ * Lastly, being character-at-a-time, they're a little more complex
+ * to write than filters operating on buffers because some state
+ * must typically be kept between characters. However, for a
+ * little bit of complexity here, much convenience is gained later
+ * as they can be arbitrarily chained together at run time and
+ * consume few resources (especially memory or disk) as they work.
+ * (NOTE 951005: even less cpu now that data between filters is passed
+ * via a vector.)
+ *
+ * A few notes about implementing filters:
+ *
+ * - A generic filter template looks like:
+ *
+ * void
+ * gf_xxx_filter(f, flg)
+ * FILTER_S *f;
+ * int flg;
+ * {
+ * GF_INIT(f, f->next); // def's var's to speed queue drain
+ *
+ * if(flg == GF_DATA){
+ * register unsigned char c;
+ *
+ * while(GF_GETC(f, c)){ // macro taking data off input queue
+ * // operate on c and pass it on here
+ * GF_PUTC(f->next, c); // macro writing output queue
+ * }
+ *
+ * GF_END(f, f->next); // macro to sync pointers/offsets
+ * //WARNING: DO NOT RETURN BEFORE ALL INCOMING DATA'S PROCESSED
+ * }
+ * else if(flg == GF_EOD){
+ * // process any buffered data here and pass it on
+ * GF_FLUSH(f->next); // flush pending data to next filter
+ * (*f->next->f)(f->next, GF_EOD);
+ * }
+ * else if(flg == GF_RESET){
+ * // initialize any data in the struct here
+ * }
+ * }
+ *
+ * - Any free storage allocated during initialization (typically tied
+ * to the "line" pointer in FILTER_S) is the filter's responsibility
+ * to clean up when the GF_EOD command comes through.
+ *
+ * - Filter's must pass GF_EOD they receive on to the next
+ * filter in the chain so it has the opportunity to flush
+ * any buffered data.
+ *
+ * - All filters expect NVT end-of-lines. The idea is to prepend
+ * or append either the gf_local_nvtnl or gf_nvtnl_local
+ * os-dependant filters to the data on the appropriate end of the
+ * pipe for the task at hand.
+ *
+ * - NOTE: As of 951004, filters no longer take their input as a single
+ * char argument, but rather get data to operate on via a vector
+ * representing the input queue in the FILTER_S structure.
+ *
+ */
+
+
+
+/*
+ * BASE64 TO BINARY encoding and decoding routines below
+ */
+
+
+/*
+ * BINARY to BASE64 filter (encoding described in rfc1341)
+ */
+void
+gf_binary_b64(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ static char *v =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register unsigned char t = f->t;
+ register long n = f->n;
+
+ while(GF_GETC(f, c)){
+
+ switch(n++){
+ case 0 : case 3 : case 6 : case 9 : case 12: case 15: case 18:
+ case 21: case 24: case 27: case 30: case 33: case 36: case 39:
+ case 42: case 45:
+ GF_PUTC(f->next, v[c >> 2]);
+ /* byte 1: high 6 bits (1) */
+ t = c << 4; /* remember high 2 bits for next */
+ break;
+
+ case 1 : case 4 : case 7 : case 10: case 13: case 16: case 19:
+ case 22: case 25: case 28: case 31: case 34: case 37: case 40:
+ case 43:
+ GF_PUTC(f->next, v[(t|(c>>4)) & 0x3f]);
+ t = c << 2;
+ break;
+
+ case 2 : case 5 : case 8 : case 11: case 14: case 17: case 20:
+ case 23: case 26: case 29: case 32: case 35: case 38: case 41:
+ case 44:
+ GF_PUTC(f->next, v[(t|(c >> 6)) & 0x3f]);
+ GF_PUTC(f->next, v[c & 0x3f]);
+ break;
+ }
+
+ if(n == 45){ /* start a new line? */
+ GF_PUTC(f->next, '\015');
+ GF_PUTC(f->next, '\012');
+ n = 0L;
+ }
+ }
+
+ f->n = n;
+ f->t = t;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){ /* no more data */
+ switch (f->n % 3) { /* handle trailing bytes */
+ case 0: /* no trailing bytes */
+ break;
+
+ case 1:
+ GF_PUTC(f->next, v[(f->t) & 0x3f]);
+ GF_PUTC(f->next, '='); /* byte 3 */
+ GF_PUTC(f->next, '='); /* byte 4 */
+ break;
+
+ case 2:
+ GF_PUTC(f->next, v[(f->t) & 0x3f]);
+ GF_PUTC(f->next, '='); /* byte 4 */
+ break;
+ }
+
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset binary_b64\n"));
+ f->n = 0L;
+ }
+}
+
+
+
+/*
+ * BASE64 to BINARY filter (encoding described in rfc1341)
+ */
+void
+gf_b64_binary(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ static char v[] = {65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,
+ 65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,
+ 65,65,65,65,65,65,65,65,65,65,65,62,65,65,65,63,
+ 52,53,54,55,56,57,58,59,60,61,62,65,65,64,65,65,
+ 65, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,
+ 15,16,17,18,19,20,21,22,23,24,25,65,65,65,65,65,
+ 65,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,
+ 41,42,43,44,45,46,47,48,49,50,51,65,65,65,65,65};
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register unsigned char t = f->t;
+ register int n = (int) f->n;
+ register int state = f->f1;
+
+ while(GF_GETC(f, c)){
+
+ if(state){
+ state = 0;
+ if (c != '=') {
+ gf_error("Illegal '=' in base64 text");
+ /* NO RETURN */
+ }
+ }
+
+ /* in range, and a valid value? */
+ if((c & ~0x7f) || (c = v[c]) > 63){
+ if(c == 64){
+ switch (n++) { /* check quantum position */
+ case 2:
+ state++; /* expect an equal as next char */
+ break;
+
+ case 3:
+ n = 0L; /* restart quantum */
+ break;
+
+ default: /* impossible quantum position */
+ gf_error("Internal base64 decoder error");
+ /* NO RETURN */
+ }
+ }
+ }
+ else{
+ switch (n++) { /* install based on quantum position */
+ case 0: /* byte 1: high 6 bits */
+ t = c << 2;
+ break;
+
+ case 1: /* byte 1: low 2 bits */
+ GF_PUTC(f->next, (t|(c >> 4)));
+ t = c << 4; /* byte 2: high 4 bits */
+ break;
+
+ case 2: /* byte 2: low 4 bits */
+ GF_PUTC(f->next, (t|(c >> 2)));
+ t = c << 6; /* byte 3: high 2 bits */
+ break;
+
+ case 3:
+ GF_PUTC(f->next, t | c);
+ n = 0L; /* reinitialize mechanism */
+ break;
+ }
+ }
+ }
+
+ f->f1 = state;
+ f->t = t;
+ f->n = n;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset b64_binary\n"));
+ f->n = 0L; /* quantum position */
+ f->f1 = 0; /* state holder: equal seen? */
+ }
+}
+
+
+
+
+/*
+ * QUOTED-PRINTABLE ENCODING AND DECODING filters below.
+ * encoding described in rfc1341
+ */
+
+#define GF_MAXLINE 80 /* good buffer size */
+
+/*
+ * default action for QUOTED-PRINTABLE to 8BIT decoder
+ */
+#define GF_QP_DEFAULT(f, c) { \
+ if((c) == ' '){ \
+ state = WSPACE; \
+ /* reset white space! */ \
+ (f)->linep = (f)->line; \
+ *((f)->linep)++ = ' '; \
+ } \
+ else if((c) == '='){ \
+ state = EQUAL; \
+ } \
+ else \
+ GF_PUTC((f)->next, (c)); \
+ }
+
+
+/*
+ * QUOTED-PRINTABLE to 8BIT filter
+ */
+void
+gf_qp_8bit(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register int state = f->f1;
+
+ while(GF_GETC(f, c)){
+
+ switch(state){
+ case DFL : /* default case */
+ default:
+ GF_QP_DEFAULT(f, c);
+ break;
+
+ case CCR : /* non-significant space */
+ state = DFL;
+ if(c == '\012')
+ continue; /* go on to next char */
+
+ GF_QP_DEFAULT(f, c);
+ break;
+
+ case EQUAL :
+ if(c == '\015'){ /* "=\015" is a soft EOL */
+ state = CCR;
+ break;
+ }
+
+ if(c == '='){ /* compatibility clause for old guys */
+ GF_PUTC(f->next, '=');
+ state = DFL;
+ break;
+ }
+
+ if(!isxdigit((unsigned char)c)){ /* must be hex! */
+ fs_give((void **)&(f->line));
+ gf_error("Non-hexadecimal character in QP encoding");
+ /* NO RETURN */
+ }
+
+ if (isdigit ((unsigned char)c))
+ f->t = c - '0';
+ else
+ f->t = c - (isupper((unsigned char)c) ? 'A' - 10 : 'a' - 10);
+
+ state = HEX;
+ break;
+
+ case HEX :
+ state = DFL;
+ if(!isxdigit((unsigned char)c)){ /* must be hex! */
+ fs_give((void **)&(f->line));
+ gf_error("Non-hexadecimal character in QP encoding");
+ /* NO RETURN */
+ }
+
+ if (isdigit((unsigned char)c))
+ c -= '0';
+ else
+ c -= (isupper((unsigned char)c) ? 'A' - 10 : 'a' - 10);
+
+ GF_PUTC(f->next, c + (f->t << 4));
+ break;
+
+ case WSPACE :
+ if(c == ' '){ /* toss it in with other spaces */
+ if(f->linep - f->line < GF_MAXLINE)
+ *(f->linep)++ = ' ';
+ break;
+ }
+
+ state = DFL;
+ if(c == '\015'){ /* not our white space! */
+ f->linep = f->line; /* reset buffer */
+ GF_PUTC(f->next, '\015');
+ break;
+ }
+
+ /* the spaces are ours, write 'em */
+ f->n = f->linep - f->line;
+ while((f->n)--)
+ GF_PUTC(f->next, ' ');
+
+ GF_QP_DEFAULT(f, c); /* take care of 'c' in default way */
+ break;
+ }
+ }
+
+ f->f1 = state;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ fs_give((void **)&(f->line));
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset qp_8bit\n"));
+ f->f1 = DFL;
+ f->linep = f->line = (char *)fs_get(GF_MAXLINE * sizeof(char));
+ }
+}
+
+
+
+/*
+ * USEFUL MACROS TO HELP WITH QP ENCODING
+ */
+
+#define QP_MAXL 75 /* 76th place only for continuation */
+
+/*
+ * Macro to test and wrap long quoted printable lines
+ */
+#define GF_8BIT_WRAP(f) { \
+ GF_PUTC((f)->next, '='); \
+ GF_PUTC((f)->next, '\015'); \
+ GF_PUTC((f)->next, '\012'); \
+ }
+
+/*
+ * write a quoted octet in QUOTED-PRINTABLE encoding, adding soft
+ * line break if needed.
+ */
+#define GF_8BIT_PUT_QUOTE(f, c) { \
+ if(((f)->n += 3) > QP_MAXL){ \
+ GF_8BIT_WRAP(f); \
+ (f)->n = 3; /* set line count */ \
+ } \
+ GF_PUTC((f)->next, '='); \
+ GF_PUTC((f)->next, HEX_CHAR1(c)); \
+ GF_PUTC((f)->next, HEX_CHAR2(c)); \
+ }
+
+/*
+ * just write an ordinary octet in QUOTED-PRINTABLE, wrapping line
+ * if needed.
+ */
+#define GF_8BIT_PUT(f, c) { \
+ if((++(f->n)) > QP_MAXL){ \
+ GF_8BIT_WRAP(f); \
+ f->n = 1L; \
+ } \
+ if(f->n == 1L && c == '.'){ \
+ GF_8BIT_PUT_QUOTE(f, c); \
+ f->n = 3; \
+ } \
+ else \
+ GF_PUTC(f->next, c); \
+ }
+
+
+/*
+ * default action for 8bit to quoted printable encoder
+ */
+#define GF_8BIT_DEFAULT(f, c) if((c) == ' '){ \
+ state = WSPACE; \
+ } \
+ else if(c == '\015'){ \
+ state = CCR; \
+ } \
+ else if(iscntrl(c & 0x7f) || (c == 0x7f) \
+ || (c & 0x80) || (c == '=')){ \
+ GF_8BIT_PUT_QUOTE(f, c); \
+ } \
+ else{ \
+ GF_8BIT_PUT(f, c); \
+ }
+
+
+/*
+ * 8BIT to QUOTED-PRINTABLE filter
+ */
+void
+gf_8bit_qp(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ short dummy_dots = 0, dummy_dmap = 1;
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register int state = f->f1;
+
+ while(GF_GETC(f, c)){
+
+ /* keep track of "^JFrom " */
+ Find_Froms(f->t, dummy_dots, f->f2, dummy_dmap, c);
+
+ switch(state){
+ case DFL : /* handle ordinary case */
+ GF_8BIT_DEFAULT(f, c);
+ break;
+
+ case CCR : /* true line break? */
+ state = DFL;
+ if(c == '\012'){
+ GF_PUTC(f->next, '\015');
+ GF_PUTC(f->next, '\012');
+ f->n = 0L;
+ }
+ else{ /* nope, quote the CR */
+ GF_8BIT_PUT_QUOTE(f, '\015');
+ GF_8BIT_DEFAULT(f, c); /* and don't forget about c! */
+ }
+ break;
+
+ case WSPACE:
+ state = DFL;
+ if(c == '\015' || f->t){ /* handle the space */
+ GF_8BIT_PUT_QUOTE(f, ' ');
+ f->t = 0; /* reset From flag */
+ }
+ else
+ GF_8BIT_PUT(f, ' ');
+
+ GF_8BIT_DEFAULT(f, c); /* handle 'c' in the default way */
+ break;
+ }
+ }
+
+ f->f1 = state;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ switch(f->f1){
+ case CCR :
+ GF_8BIT_PUT_QUOTE(f, '\015'); /* write the last cr */
+ break;
+
+ case WSPACE :
+ GF_8BIT_PUT_QUOTE(f, ' '); /* write the last space */
+ break;
+ }
+
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset 8bit_qp\n"));
+ f->f1 = DFL; /* state from last character */
+ f->f2 = 1; /* state of "^NFrom " bitmap */
+ f->t = 0;
+ f->n = 0L; /* number of chars in current line */
+ }
+}
+
+
+
+/*
+ * RICHTEXT-TO-PLAINTEXT filter
+ */
+
+/*
+ * option to be used by rich2plain (NOTE: if this filter is ever
+ * used more than once in a pipe, all instances will have the same
+ * option value)
+ */
+
+
+/*----------------------------------------------------------------------
+ richtext to plaintext filter
+
+ Args: f --
+ flg --
+
+ This basically removes all richtext formatting. A cute hack is used
+ to get bold and underlining to work.
+ Further work could be done to handle things like centering and right
+ and left flush, but then it could no longer be done in place. This
+ operates on text *with* CRLF's.
+
+ WARNING: does not wrap lines!
+ ----*/
+void
+gf_rich2plain(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+/* BUG: qoute incoming \255 values */
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register int state = f->f1;
+
+ while(GF_GETC(f, c)){
+
+ switch(state){
+ case TOKEN : /* collect a richtext token */
+ if(c == '>'){ /* what should we do with it? */
+ state = DFL; /* return to default next time */
+ *(f->linep) = '\0'; /* cap off token */
+ if(f->line[0] == 'l' && f->line[1] == 't'){
+ GF_PUTC(f->next, '<'); /* literal '<' */
+ }
+ else if(f->line[0] == 'n' && f->line[1] == 'l'){
+ GF_PUTC(f->next, '\015');/* newline! */
+ GF_PUTC(f->next, '\012');
+ }
+ else if(!strcmp("comment", f->line)){
+ (f->f2)++;
+ }
+ else if(!strcmp("/comment", f->line)){
+ f->f2 = 0;
+ }
+ else if(!strcmp("/paragraph", f->line)) {
+ GF_PUTC(f->next, '\r');
+ GF_PUTC(f->next, '\n');
+ GF_PUTC(f->next, '\r');
+ GF_PUTC(f->next, '\n');
+ }
+ else if(!f->opt /* gf_rich_plain */){
+ if(!strcmp(f->line, "bold")) {
+ GF_PUTC(f->next, TAG_EMBED);
+ GF_PUTC(f->next, TAG_BOLDON);
+ } else if(!strcmp(f->line, "/bold")) {
+ GF_PUTC(f->next, TAG_EMBED);
+ GF_PUTC(f->next, TAG_BOLDOFF);
+ } else if(!strcmp(f->line, "italic")) {
+ GF_PUTC(f->next, TAG_EMBED);
+ GF_PUTC(f->next, TAG_ULINEON);
+ } else if(!strcmp(f->line, "/italic")) {
+ GF_PUTC(f->next, TAG_EMBED);
+ GF_PUTC(f->next, TAG_ULINEOFF);
+ } else if(!strcmp(f->line, "underline")) {
+ GF_PUTC(f->next, TAG_EMBED);
+ GF_PUTC(f->next, TAG_ULINEON);
+ } else if(!strcmp(f->line, "/underline")) {
+ GF_PUTC(f->next, TAG_EMBED);
+ GF_PUTC(f->next, TAG_ULINEOFF);
+ }
+ }
+ /* else we just ignore the token! */
+
+ f->linep = f->line; /* reset token buffer */
+ }
+ else{ /* add char to token */
+ if(f->linep - f->line > 40){
+ /* What? rfc1341 says 40 char tokens MAX! */
+ fs_give((void **)&(f->line));
+ gf_error("Richtext token over 40 characters");
+ /* NO RETURN */
+ }
+
+ *(f->linep)++ = isupper((unsigned char)c) ? c-'A'+'a' : c;
+ }
+ break;
+
+ case CCR :
+ state = DFL; /* back to default next time */
+ if(c == '\012'){ /* treat as single space? */
+ GF_PUTC(f->next, ' ');
+ break;
+ }
+ /* fall thru to process c */
+
+ case DFL :
+ default:
+ if(c == '<')
+ state = TOKEN;
+ else if(c == '\015')
+ state = CCR;
+ else if(!f->f2) /* not in comment! */
+ GF_PUTC(f->next, c);
+
+ break;
+ }
+ }
+
+ f->f1 = state;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ if(f->f1 = (f->linep != f->line)){
+ /* incomplete token!! */
+ gf_error("Incomplete token in richtext");
+ /* NO RETURN */
+ }
+
+ fs_give((void **)&(f->line));
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset rich2plain\n"));
+ f->f1 = DFL; /* state */
+ f->f2 = 0; /* set means we're in a comment */
+ f->linep = f->line = (char *)fs_get(45 * sizeof(char));
+ }
+}
+
+
+/*
+ * function called from the outside to set
+ * richtext filter's options
+ */
+void *
+gf_rich2plain_opt(plain)
+ int plain;
+{
+ return((void *) plain);
+}
+
+
+
+/*
+ * ENRICHED-TO-PLAIN text filter
+ */
+
+#define TEF_QUELL 0x01
+#define TEF_NOFILL 0x02
+
+
+
+/*----------------------------------------------------------------------
+ enriched text to plain text filter (ala rfc1523)
+
+ Args: f -- state and input data
+ flg --
+
+ This basically removes all enriched formatting. A cute hack is used
+ to get bold and underlining to work.
+
+ Further work could be done to handle things like centering and right
+ and left flush, but then it could no longer be done in place. This
+ operates on text *with* CRLF's.
+
+ WARNING: does not wrap lines!
+ ----*/
+void
+gf_enriched2plain(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+/* BUG: qoute incoming \255 values */
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register int state = f->f1;
+
+ while(GF_GETC(f, c)){
+
+ switch(state){
+ case TOKEN : /* collect a richtext token */
+ if(c == '>'){ /* what should we do with it? */
+ int off = *f->line == '/';
+ char *token = f->line + (off ? 1 : 0);
+ state = DFL;
+ *f->linep = '\0';
+ if(!strcmp("param", token)){
+ if(off)
+ f->f2 &= ~TEF_QUELL;
+ else
+ f->f2 |= TEF_QUELL;
+ }
+ else if(!strcmp("nofill", token)){
+ if(off)
+ f->f2 &= ~TEF_NOFILL;
+ else
+ f->f2 |= TEF_NOFILL;
+ }
+ else if(!f->opt /* gf_enriched_plain */){
+ /* Following is a cute hack or two to get
+ bold and underline on the screen.
+ See Putline0n() where these codes are
+ interpreted */
+ if(!strcmp("bold", token)) {
+ GF_PUTC(f->next, TAG_EMBED);
+ GF_PUTC(f->next, off ? TAG_BOLDOFF : TAG_BOLDON);
+ } else if(!strcmp("italic", token)) {
+ GF_PUTC(f->next, TAG_EMBED);
+ GF_PUTC(f->next, off ? TAG_ULINEOFF : TAG_ULINEON);
+ } else if(!strcmp("underline", token)) {
+ GF_PUTC(f->next, TAG_EMBED);
+ GF_PUTC(f->next, off ? TAG_ULINEOFF : TAG_ULINEON);
+ }
+ }
+ /* else we just ignore the token! */
+
+ f->linep = f->line; /* reset token buffer */
+ }
+ else if(c == '<'){ /* literal '<'? */
+ if(f->linep == f->line){
+ GF_PUTC(f->next, '<');
+ state = DFL;
+ }
+ else{
+ fs_give((void **)&(f->line));
+ gf_error("Malformed Enriched text: unexpected '<'");
+ /* NO RETURN */
+ }
+ }
+ else{ /* add char to token */
+ if(f->linep - f->line > 60){ /* rfc1523 says 60 MAX! */
+ fs_give((void **)&(f->line));
+ gf_error("Malformed Enriched text: token too long");
+ /* NO RETURN */
+ }
+
+ *(f->linep)++ = isupper((unsigned char)c) ? c-'A'+'a' : c;
+ }
+ break;
+
+ case CCR :
+ if(c != '\012'){ /* treat as single space? */
+ state = DFL; /* lone cr? */
+ f->f2 &= ~TEF_QUELL;
+ GF_PUTC(f->next, '\015');
+ goto df;
+ }
+
+ state = CLF;
+ break;
+
+ case CLF :
+ if(c == '\015'){ /* treat as single space? */
+ state = CCR; /* repeat crlf's mean real newlines */
+ f->f2 |= TEF_QUELL;
+ GF_PUTC(f->next, '\r');
+ GF_PUTC(f->next, '\n');
+ break;
+ }
+ else{
+ state = DFL;
+ if(!((f->f2) & TEF_QUELL))
+ GF_PUTC(f->next, ' ');
+
+ f->f2 &= ~TEF_QUELL;
+ }
+
+ /* fall thru to take care of 'c' */
+
+ case DFL :
+ default :
+ df :
+ if(c == '<')
+ state = TOKEN;
+ else if(c == '\015' && (!((f->f2) & TEF_NOFILL)))
+ state = CCR;
+ else if(!((f->f2) & TEF_QUELL))
+ GF_PUTC(f->next, c);
+
+ break;
+ }
+ }
+
+ f->f1 = state;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ if(f->f1 = (f->linep != f->line)){
+ /* incomplete token!! */
+ gf_error("Incomplete token in richtext");
+ /* NO RETURN */
+ }
+
+ /* Make sure we end with a newline so everything gets flushed */
+ GF_PUTC(f->next, '\015');
+ GF_PUTC(f->next, '\012');
+
+ fs_give((void **)&(f->line));
+
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset enriched2plain\n"));
+ f->f1 = DFL; /* state */
+ f->f2 = 0; /* set means we're in a comment */
+ f->linep = f->line = (char *)fs_get(65 * sizeof(char));
+ }
+}
+
+
+/*
+ * function called from the outside to set
+ * richtext filter's options
+ */
+void *
+gf_enriched2plain_opt(plain)
+ int plain;
+{
+ return((void *) plain);
+}
+
+
+
+/*
+ * HTML-TO-PLAIN text filter
+ */
+
+
+/* OK, here's the plan:
+
+ * a universal output function handles writing chars and worries
+ * about wrapping.
+
+ * a unversal element collector reads chars and collects params
+ * and dispatches the appropriate element handler.
+
+ * element handlers are stacked. The most recently dispatched gets
+ * first crack at the incoming character stream. It passes bytes it's
+ * done with or not interested in to the next
+
+ * installs that handler as the current one collecting data...
+
+ * stacked handlers take their params from the element collector and
+ * accept chars or do whatever they need to do. Sort of a vertical
+ * piping? recursion-like? hmmm.
+
+ * at least I think this is how it'll work. tres simple, non?
+
+ */
+
+
+/*
+ * Some important constants
+ */
+#define HTML_BUF_LEN 1024 /* max scratch buffer length */
+#define MAX_ENTITY 20 /* maximum length of an entity */
+#define MAX_ELEMENT 72 /* maximum length of an element */
+#define HTML_BADVALUE 0x0100 /* good data, but bad entity value */
+#define HTML_BADDATA 0x0200 /* bad data found looking for entity */
+#define HTML_LITERAL 0x0400 /* Literal character value */
+#define HTML_NEWLINE 0x010A /* hard newline */
+#define HTML_DOBOLD 0x0400 /* Start Bold display */
+#define HTML_ID_GET 0 /* indent func: return current val */
+#define HTML_ID_SET 1 /* indent func: set to absolute val */
+#define HTML_ID_INC 2 /* indent func: increment by val */
+#define HTML_HX_CENTER 0x0001
+#define HTML_HX_ULINE 0x0002
+
+
+/*
+ * Types used to manage HTML parsing
+ */
+typedef int (*html_f) PROTO(());
+
+/*
+ * Handler data, state information including function that uses it
+ */
+typedef struct handler_s {
+ FILTER_S *html_data;
+ struct handler_s *below;
+ html_f f;
+ long x, y, z;
+ unsigned char *s;
+} HANDLER_S;
+
+
+/*
+ * to help manage line wrapping.
+ */
+typedef struct _wrap_line {
+ char *buf; /* buf to collect wrapped text */
+ int used, /* number of chars in buf */
+ width, /* text's width as displayed */
+ len; /* length of allocated buf */
+} WRAPLINE_S;
+
+
+/*
+ * to help manage centered text
+ */
+typedef struct _center_s {
+ WRAPLINE_S line; /* buf to assembled centered text */
+ WRAPLINE_S word; /* word being to append to Line */
+ int anchor;
+ short embedded;
+ short space;
+} CENTER_S;
+
+
+/*
+ * Collector data and state information
+ */
+typedef struct collector_s {
+ char buf[HTML_BUF_LEN]; /* buffer to collect data */
+ int len; /* length of that buffer */
+ unsigned end_tag:1; /* collecting a closing tag */
+ unsigned hit_equal:1; /* collecting right half of attrib */
+ unsigned mkup_decl:1; /* markup declaration */
+ unsigned start_comment:1; /* markup declaration comment */
+ unsigned end_comment:1; /* legit comment format */
+ unsigned hyphen:1; /* markup hyphen read */
+ unsigned badform:1; /* malformed markup element */
+ unsigned overrun:1; /* Overran buf above */
+ char quoted; /* quoted element param value */
+ char *element; /* element's collected name */
+ PARAMETER *attribs; /* element's collected attributes */
+ PARAMETER *cur_attrib; /* attribute now being collected */
+} CLCTR_S;
+
+
+/*
+ * State information for all element handlers
+ */
+typedef struct html_data {
+ HANDLER_S *h_stack; /* handler list */
+ CLCTR_S *el_data; /* element collector data */
+ CENTER_S *centered; /* struct to manage centered text */
+ int (*token) PROTO((FILTER_S *, int));
+ char quoted; /* quoted, by either ' or ", text */
+ short indent_level; /* levels of indention */
+ int in_anchor; /* text now being written to anchor */
+ int blanks; /* Consecutive blank line count */
+ int wrapcol; /* column to wrap lines on */
+ int *prefix; /* buffer containing Anchor prefix */
+ int prefix_used;
+ COLOR_PAIR *color;
+ unsigned wrapstate:1; /* whether or not to wrap output */
+ unsigned li_pending:1; /* <LI> next token expected */
+ unsigned de_pending:1; /* <DT> or <DD> next token expected */
+ unsigned bold_on:1; /* currently bolding text */
+ unsigned uline_on:1; /* currently underlining text */
+ unsigned center:1; /* center output text */
+ unsigned bitbucket:1; /* Ignore input */
+ unsigned head:1; /* In doc's HEAD */
+ unsigned alt_entity:1; /* use alternative entity values */
+} HTML_DATA_S;
+
+
+/*
+ * HTML filter options
+ */
+typedef struct _html_opts {
+ char *base; /* Base URL for this html file */
+ int columns; /* Display columns */
+ unsigned strip:1; /* Hilite TAGs allowed */
+ unsigned handles:1; /* Anchors as handles requested? */
+ unsigned handles_loc:1; /* Local handles requested? */
+} HTML_OPT_S;
+
+
+/*
+ * Some macros to make life a little easier
+ */
+#define WRAP_COLS(X) ((X)->opt ? ((HTML_OPT_S *)(X)->opt)->columns : 80)
+#define HTML_BASE(X) ((X)->opt ? ((HTML_OPT_S *)(X)->opt)->base : NULL)
+#define STRIP(X) ((X)->opt && ((HTML_OPT_S *)(X)->opt)->strip)
+#define HANDLES(X) ((X)->opt && ((HTML_OPT_S *)(X)->opt)->handles)
+#define HANDLES_LOC(X) ((X)->opt && ((HTML_OPT_S *)(X)->opt)->handles_loc)
+#define MAKE_LITERAL(C) (HTML_LITERAL | ((C) & 0xff))
+#define IS_LITERAL(C) (HTML_LITERAL & (C))
+#define HD(X) ((HTML_DATA_S *)(X)->data)
+#define ED(X) (HD(X)->el_data)
+#define HTML_ISSPACE(C) (IS_LITERAL(C) == 0 && isspace((unsigned char) (C)))
+#define NEW_CLCTR(X) { \
+ ED(X) = (CLCTR_S *)fs_get(sizeof(CLCTR_S)); \
+ memset(ED(X), 0, sizeof(CLCTR_S)); \
+ HD(X)->token = html_element_collector; \
+ }
+
+#define FREE_CLCTR(X) { \
+ if(ED(X)->attribs){ \
+ PARAMETER *p; \
+ while(p = ED(X)->attribs){ \
+ ED(X)->attribs = ED(X)->attribs->next; \
+ if(p->attribute) \
+ fs_give((void **)&p->attribute); \
+ if(p->value) \
+ fs_give((void **)&p->value); \
+ fs_give((void **)&p); \
+ } \
+ } \
+ if(ED(X)->element) \
+ fs_give((void **) &ED(X)->element); \
+ fs_give((void **) &ED(X)); \
+ HD(X)->token = NULL; \
+ }
+#define HANDLERS(X) (HD(X)->h_stack)
+#define BOLD_BIT(X) (HD(X)->bold_on)
+#define ULINE_BIT(X) (HD(X)->uline_on)
+#define CENTER_BIT(X) (HD(X)->center)
+#define HTML_FLUSH(X) { \
+ html_write(X, (X)->line, (X)->linep - (X)->line); \
+ (X)->linep = (X)->line; \
+ (X)->f2 = 0L; \
+ }
+#define HTML_BOLD(X, S) if(! STRIP(X)){ \
+ if(S){ \
+ html_output((X), TAG_EMBED); \
+ html_output((X), TAG_BOLDON); \
+ } \
+ else if(!(S)){ \
+ html_output((X), TAG_EMBED); \
+ html_output((X), TAG_BOLDOFF); \
+ } \
+ }
+#define HTML_ULINE(X, S) \
+ if(! STRIP(X)){ \
+ if(S){ \
+ html_output((X), TAG_EMBED); \
+ html_output((X), TAG_ULINEON); \
+ } \
+ else if(!(S)){ \
+ html_output((X), TAG_EMBED); \
+ html_output((X), TAG_ULINEOFF); \
+ } \
+ }
+#define WRAPPED_LEN(X) ((HD(f)->centered) \
+ ? (HD(f)->centered->line.width \
+ + HD(f)->centered->word.width \
+ + ((HD(f)->centered->line.width \
+ && HD(f)->centered->word.width) \
+ ? 1 : 0)) \
+ : 0)
+#define HTML_DUMP_LIT(F, S, L) { \
+ int i, c; \
+ for(i = 0; i < (L); i++){ \
+ c = isspace((S)[i]) \
+ ? (S)[i] \
+ : MAKE_LITERAL((S)[i]); \
+ HTML_TEXT(F, c); \
+ } \
+ }
+#define HTML_PROC(F, C) { \
+ if(HD(F)->token){ \
+ int i; \
+ if(i = (*(HD(F)->token))(F, C)){ \
+ if(i < 0){ \
+ HTML_DUMP_LIT(F, "<", 1); \
+ if(HD(F)->el_data->element){ \
+ HTML_DUMP_LIT(F, \
+ HD(F)->el_data->element, \
+ strlen(HD(F)->el_data->element));\
+ } \
+ if(HD(F)->el_data->len){ \
+ HTML_DUMP_LIT(F, \
+ HD(F)->el_data->buf, \
+ HD(F)->el_data->len); \
+ } \
+ HTML_TEXT(F, C); \
+ } \
+ FREE_CLCTR(F); \
+ } \
+ } \
+ else if((C) == '<'){ \
+ NEW_CLCTR(F); \
+ } \
+ else \
+ HTML_TEXT(F, C); \
+ }
+#define HTML_TEXT(F, C) switch((F)->f1){ \
+ case WSPACE : \
+ if(HTML_ISSPACE(C)) /* ignore repeated WS */ \
+ break; \
+ HTML_TEXT_OUT(F, ' '); \
+ (F)->f1 = DFL;/* stop sending chars here */ \
+ /* fall thru to process 'c' */ \
+ case DFL: \
+ if(HD(F)->bitbucket) \
+ (F)->f1 = DFL; /* no op */ \
+ else if(HTML_ISSPACE(C) && HD(F)->wrapstate) \
+ (F)->f1 = WSPACE;/* coalesce white space */ \
+ else HTML_TEXT_OUT(F, C); \
+ break; \
+ }
+#define HTML_TEXT_OUT(F, C) if(HANDLERS(F)) /* let handlers see C */ \
+ (*HANDLERS(F)->f)(HANDLERS(F),(C),GF_DATA); \
+ else \
+ html_output(F, C);
+#ifdef DEBUG
+#define HTML_DEBUG_EL(S, D) { \
+ dprint(2, (debugfile, "-- html %s: %s\n", \
+ S, (D)->element \
+ ? (D)->element : "NULL")); \
+ if(debug > 5){ \
+ PARAMETER *p; \
+ for(p = (D)->attribs; \
+ p && p->attribute; \
+ p = p->next) \
+ dprint(6, (debugfile, \
+ " PARM: %s%s%s\n", \
+ p->attribute \
+ ? p->attribute : "NULL",\
+ p->value ? "=" : "", \
+ p->value ? p->value : ""));\
+ } \
+ }
+#else
+#define HTML_DEBUG_EL(S, D)
+#endif
+
+
+/*
+ * Protos for Tag handlers
+ */
+int html_head PROTO((HANDLER_S *, int, int));
+int html_base PROTO((HANDLER_S *, int, int));
+int html_title PROTO((HANDLER_S *, int, int));
+int html_a PROTO((HANDLER_S *, int, int));
+int html_br PROTO((HANDLER_S *, int, int));
+int html_hr PROTO((HANDLER_S *, int, int));
+int html_p PROTO((HANDLER_S *, int, int));
+int html_tr PROTO((HANDLER_S *, int, int));
+int html_td PROTO((HANDLER_S *, int, int));
+int html_b PROTO((HANDLER_S *, int, int));
+int html_i PROTO((HANDLER_S *, int, int));
+int html_img PROTO((HANDLER_S *, int, int));
+int html_form PROTO((HANDLER_S *, int, int));
+int html_ul PROTO((HANDLER_S *, int, int));
+int html_ol PROTO((HANDLER_S *, int, int));
+int html_menu PROTO((HANDLER_S *, int, int));
+int html_dir PROTO((HANDLER_S *, int, int));
+int html_li PROTO((HANDLER_S *, int, int));
+int html_h1 PROTO((HANDLER_S *, int, int));
+int html_h2 PROTO((HANDLER_S *, int, int));
+int html_h3 PROTO((HANDLER_S *, int, int));
+int html_h4 PROTO((HANDLER_S *, int, int));
+int html_h5 PROTO((HANDLER_S *, int, int));
+int html_h6 PROTO((HANDLER_S *, int, int));
+int html_blockquote PROTO((HANDLER_S *, int, int));
+int html_address PROTO((HANDLER_S *, int, int));
+int html_pre PROTO((HANDLER_S *, int, int));
+int html_center PROTO((HANDLER_S *, int, int));
+int html_div PROTO((HANDLER_S *, int, int));
+int html_dl PROTO((HANDLER_S *, int, int));
+int html_dt PROTO((HANDLER_S *, int, int));
+int html_dd PROTO((HANDLER_S *, int, int));
+
+/*
+ * Proto's for support routines
+ */
+void html_pop PROTO((FILTER_S *, html_f));
+void html_push PROTO((FILTER_S *, html_f));
+int html_element_collector PROTO((FILTER_S *, int));
+int html_element_flush PROTO((CLCTR_S *));
+void html_element_comment PROTO((FILTER_S *, char *));
+void html_element_output PROTO((FILTER_S *, int));
+int html_entity_collector PROTO((FILTER_S *, int, char **));
+void html_a_prefix PROTO((FILTER_S *));
+void html_a_finish PROTO((HANDLER_S *));
+void html_a_output_prefix PROTO((FILTER_S *, int));
+void html_a_relative PROTO((char *, char *, HANDLE_S *));
+int html_indent PROTO((FILTER_S *, int, int));
+void html_blank PROTO((FILTER_S *, int));
+void html_newline PROTO((FILTER_S *));
+void html_output PROTO((FILTER_S *, int));
+void html_output_flush PROTO((FILTER_S *));
+void html_output_centered PROTO((FILTER_S *, int));
+void html_centered_handle PROTO((int *, char *, int));
+void html_centered_putc PROTO((WRAPLINE_S *, int));
+void html_centered_flush PROTO((FILTER_S *));
+void html_centered_flush_line PROTO((FILTER_S *));
+void html_write_anchor PROTO((FILTER_S *, int));
+void html_write_newline PROTO((FILTER_S *));
+void html_write_indent PROTO((FILTER_S *, int));
+void html_write PROTO((FILTER_S *, char *, int));
+void html_putc PROTO((FILTER_S *, int));
+
+
+/*
+ * Named entity table -- most from HTML 2.0 (rfc1866) plus some from
+ * W3C doc "Additional named entities for HTML"
+ */
+static struct html_entities {
+ char *name; /* entity name */
+ unsigned char value; /* entity value */
+ char *plain; /* plain text representation */
+} entity_tab[] = {
+ {"quot", 042}, /* Double quote sign */
+ {"amp", 046}, /* Ampersand */
+ {"bull", 052}, /* Bullet */
+ {"ndash", 055}, /* Dash */
+ {"mdash", 055}, /* Dash */
+ {"lt", 074}, /* Less than sign */
+ {"gt", 076}, /* Greater than sign */
+ {"nbsp", 0240, " "}, /* no-break space */
+ {"iexcl", 0241}, /* inverted exclamation mark */
+ {"cent", 0242}, /* cent sign */
+ {"pound", 0243}, /* pound sterling sign */
+ {"curren", 0244, "CUR"}, /* general currency sign */
+ {"yen", 0245}, /* yen sign */
+ {"brvbar", 0246, "|"}, /* broken (vertical) bar */
+ {"sect", 0247}, /* section sign */
+ {"uml", 0250, "\""}, /* umlaut (dieresis) */
+ {"copy", 0251, "(C)"}, /* copyright sign */
+ {"ordf", 0252, "a"}, /* ordinal indicator, feminine */
+ {"laquo", 0253, "<<"}, /* angle quotation mark, left */
+ {"not", 0254, "NOT"}, /* not sign */
+ {"shy", 0255, "-"}, /* soft hyphen */
+ {"reg", 0256, "(R)"}, /* registered sign */
+ {"macr", 0257}, /* macron */
+ {"deg", 0260, "DEG"}, /* degree sign */
+ {"plusmn", 0261, "+/-"}, /* plus-or-minus sign */
+ {"sup2", 0262}, /* superscript two */
+ {"sup3", 0263}, /* superscript three */
+ {"acute", 0264, "'"}, /* acute accent */
+ {"micro", 0265}, /* micro sign */
+ {"para", 0266}, /* pilcrow (paragraph sign) */
+ {"middot", 0267}, /* middle dot */
+ {"cedil", 0270}, /* cedilla */
+ {"sup1", 0271}, /* superscript one */
+ {"ordm", 0272, "o"}, /* ordinal indicator, masculine */
+ {"raquo", 0273, ">>"}, /* angle quotation mark, right */
+ {"frac14", 0274, " 1/4"}, /* fraction one-quarter */
+ {"frac12", 0275, " 1/2"}, /* fraction one-half */
+ {"frac34", 0276, " 3/4"}, /* fraction three-quarters */
+ {"iquest", 0277}, /* inverted question mark */
+ {"Agrave", 0300, "A"}, /* capital A, grave accent */
+ {"Aacute", 0301, "A"}, /* capital A, acute accent */
+ {"Acirc", 0302, "A"}, /* capital A, circumflex accent */
+ {"Atilde", 0303, "A"}, /* capital A, tilde */
+ {"Auml", 0304, "AE"}, /* capital A, dieresis or umlaut mark */
+ {"Aring", 0305, "A"}, /* capital A, ring */
+ {"AElig", 0306, "AE"}, /* capital AE diphthong (ligature) */
+ {"Ccedil", 0307, "C"}, /* capital C, cedilla */
+ {"Egrave", 0310, "E"}, /* capital E, grave accent */
+ {"Eacute", 0311, "E"}, /* capital E, acute accent */
+ {"Ecirc", 0312, "E"}, /* capital E, circumflex accent */
+ {"Euml", 0313, "E"}, /* capital E, dieresis or umlaut mark */
+ {"Igrave", 0314, "I"}, /* capital I, grave accent */
+ {"Iacute", 0315, "I"}, /* capital I, acute accent */
+ {"Icirc", 0316, "I"}, /* capital I, circumflex accent */
+ {"Iuml", 0317, "I"}, /* capital I, dieresis or umlaut mark */
+ {"ETH", 0320, "DH"}, /* capital Eth, Icelandic */
+ {"Ntilde", 0321, "N"}, /* capital N, tilde */
+ {"Ograve", 0322, "O"}, /* capital O, grave accent */
+ {"Oacute", 0323, "O"}, /* capital O, acute accent */
+ {"Ocirc", 0324, "O"}, /* capital O, circumflex accent */
+ {"Otilde", 0325, "O"}, /* capital O, tilde */
+ {"Ouml", 0326, "OE"}, /* capital O, dieresis or umlaut mark */
+ {"times", 0327, "x"}, /* multiply sign */
+ {"Oslash", 0330, "O"}, /* capital O, slash */
+ {"Ugrave", 0331, "U"}, /* capital U, grave accent */
+ {"Uacute", 0332, "U"}, /* capital U, acute accent */
+ {"Ucirc", 0333, "U"}, /* capital U, circumflex accent */
+ {"Uuml", 0334, "UE"}, /* capital U, dieresis or umlaut mark */
+ {"Yacute", 0335, "Y"}, /* capital Y, acute accent */
+ {"THORN", 0336, "P"}, /* capital THORN, Icelandic */
+ {"szlig", 0337, "ss"}, /* small sharp s, German (sz ligature) */
+ {"agrave", 0340, "a"}, /* small a, grave accent */
+ {"aacute", 0341, "a"}, /* small a, acute accent */
+ {"acirc", 0342, "a"}, /* small a, circumflex accent */
+ {"atilde", 0343, "a"}, /* small a, tilde */
+ {"auml", 0344, "ae"}, /* small a, dieresis or umlaut mark */
+ {"aring", 0345, "a"}, /* small a, ring */
+ {"aelig", 0346, "ae"}, /* small ae diphthong (ligature) */
+ {"ccedil", 0347, "c"}, /* small c, cedilla */
+ {"egrave", 0350, "e"}, /* small e, grave accent */
+ {"eacute", 0351, "e"}, /* small e, acute accent */
+ {"ecirc", 0352, "e"}, /* small e, circumflex accent */
+ {"euml", 0353, "e"}, /* small e, dieresis or umlaut mark */
+ {"igrave", 0354, "i"}, /* small i, grave accent */
+ {"iacute", 0355, "i"}, /* small i, acute accent */
+ {"icirc", 0356, "i"}, /* small i, circumflex accent */
+ {"iuml", 0357, "i"}, /* small i, dieresis or umlaut mark */
+ {"eth", 0360, "dh"}, /* small eth, Icelandic */
+ {"ntilde", 0361, "n"}, /* small n, tilde */
+ {"ograve", 0362, "o"}, /* small o, grave accent */
+ {"oacute", 0363, "o"}, /* small o, acute accent */
+ {"ocirc", 0364, "o"}, /* small o, circumflex accent */
+ {"otilde", 0365, "o"}, /* small o, tilde */
+ {"ouml", 0366, "oe"}, /* small o, dieresis or umlaut mark */
+ {"divide", 0367, "/"}, /* divide sign */
+ {"oslash", 0370, "o"}, /* small o, slash */
+ {"ugrave", 0371, "u"}, /* small u, grave accent */
+ {"uacute", 0372, "u"}, /* small u, acute accent */
+ {"ucirc", 0373, "u"}, /* small u, circumflex accent */
+ {"uuml", 0374, "ue"}, /* small u, dieresis or umlaut mark */
+ {"yacute", 0375, "y"}, /* small y, acute accent */
+ {"thorn", 0376, "p"}, /* small thorn, Icelandic */
+ {"yuml", 0377, "y"}, /* small y, dieresis or umlaut mark */
+ {NULL, 0}
+};
+
+
+/*
+ * Table of supported elements and corresponding handlers
+ */
+static struct element_table {
+ char *element;
+ int (*handler) PROTO(());
+} element_table[] = {
+ {"HTML", NULL}, /* HTML ignore if seen? */
+ {"HEAD", html_head}, /* slurp until <BODY> ? */
+ {"TITLE", html_title}, /* Document Title */
+ {"BASE", html_base}, /* HREF base */
+ {"BODY", NULL}, /* (NO OP) */
+ {"A", html_a}, /* Anchor */
+ {"IMG", html_img}, /* Image */
+ {"HR", html_hr}, /* Horizontal Rule */
+ {"BR", html_br}, /* Line Break */
+ {"P", html_p}, /* Paragraph */
+ {"OL", html_ol}, /* Ordered List */
+ {"UL", html_ul}, /* Unordered List */
+ {"MENU", html_menu}, /* Menu List */
+ {"DIR", html_dir}, /* Directory List */
+ {"LI", html_li}, /* ... List Item */
+ {"DL", html_dl}, /* Definition List */
+ {"DT", html_dt}, /* ... Def. Term */
+ {"DD", html_dd}, /* ... Def. Definition */
+ {"I", html_i}, /* Italic Text */
+ {"EM", html_i}, /* Typographic Emphasis */
+ {"STRONG", html_i}, /* STRONG Typo Emphasis */
+ {"VAR", html_i}, /* Variable Name */
+ {"B", html_b}, /* Bold Text */
+ {"BLOCKQUOTE", html_blockquote}, /* Blockquote */
+ {"ADDRESS", html_address}, /* Address */
+ {"CENTER", html_center}, /* Centered Text v3.2 */
+ {"DIV", html_div}, /* Document Division 3.2 */
+ {"H1", html_h1}, /* Headings... */
+ {"H2", html_h2},
+ {"H3", html_h3},
+ {"H4", html_h4},
+ {"H5", html_h5},
+ {"H6", html_h6},
+ {"PRE", html_pre}, /* Preformatted Text */
+ {"KBD", NULL}, /* Keyboard Input (NO OP) */
+ {"TT", NULL}, /* Typetype (NO OP) */
+ {"SAMP", NULL}, /* Sample Text (NO OP) */
+
+/*----- Handlers below are NOT DONE OR CHECKED OUT YET -----*/
+
+ {"CITE", NULL}, /* Citation */
+ {"CODE", NULL}, /* Code Text */
+
+/*----- Handlers below UNIMPLEMENTED (and won't until later) -----*/
+
+ {"FORM", html_form}, /* form within a document */
+ {"INPUT", NULL}, /* One input field, options */
+ {"OPTION", NULL}, /* One option within Select */
+ {"SELECT", NULL}, /* Selection from a set */
+ {"TEXTAREA", NULL}, /* A multi-line input field */
+
+/*----- Handlers below provide limited support for RFC 1942 Tables -----*/
+
+ {"CAPTION", html_center}, /* Table Caption */
+ {"TR", html_tr}, /* Table Table Row */
+ {"TD", html_td}, /* Table Table Data */
+
+ {NULL, NULL}
+};
+
+
+
+/*
+ * Initialize the given handler, and add it to the stack if it
+ * requests it.
+ */
+void
+html_push(fd, hf)
+ FILTER_S *fd;
+ html_f hf;
+{
+ HANDLER_S *new;
+
+ new = (HANDLER_S *)fs_get(sizeof(HANDLER_S));
+ memset(new, 0, sizeof(HANDLER_S));
+ new->html_data = fd;
+ new->f = hf;
+ if((*hf)(new, 0, GF_RESET)){ /* stack the handler? */
+ new->below = HANDLERS(fd);
+ HANDLERS(fd) = new; /* push */
+ }
+ else
+ fs_give((void **) &new);
+}
+
+
+/*
+ * Remove the most recently installed the given handler
+ * after letting it accept its demise.
+ */
+void
+html_pop(fd, hf)
+ FILTER_S *fd;
+ html_f hf;
+{
+ HANDLER_S *tp;
+
+ for(tp = HANDLERS(fd); tp && hf != tp->f; tp = tp->below)
+ ;
+
+ if(tp){
+ (*tp->f)(tp, 0, GF_EOD); /* may adjust handler list */
+ if(tp != HANDLERS(fd)){
+ HANDLER_S *p;
+
+ for(p = HANDLERS(fd); p->below != tp; p = p->below)
+ ;
+
+ if(p)
+ p->below = tp->below; /* remove from middle of stack */
+ /* BUG: else programming botch and we should die */
+ }
+ else
+ HANDLERS(fd) = tp->below; /* pop */
+
+ fs_give((void **)&tp);
+ }
+ else if(hf == html_p || hf == html_li || hf == html_dt || hf == html_dd){
+ /*
+ * Possible "special case" tag handling here.
+ * It's for such tags as Paragraph (`</P>'), List Item
+ * (`</LI>'), Definition Term (`</DT>'), and Definition Description
+ * (`</DD>') elements, which may be omitted...
+ */
+ HANDLER_S hd;
+
+ memset(&hd, 0, sizeof(HANDLER_S));
+ hd.html_data = fd;
+ hd.f = hf;
+
+ (*hf)(&hd, 0, GF_EOD);
+ }
+ /* BUG: else, we should bitch */
+}
+
+
+/*
+ * Deal with data passed a hander in its GF_DATA state
+ */
+html_handoff(hd, ch)
+ HANDLER_S *hd;
+ int ch;
+{
+ if(hd->below)
+ (*hd->below->f)(hd->below, ch, GF_DATA);
+ else
+ html_output(hd->html_data, ch);
+}
+
+
+/*
+ * HTML <BR> element handler
+ */
+int
+html_br(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET)
+ html_output(hd->html_data, HTML_NEWLINE);
+
+ return(0); /* don't get linked */
+}
+
+
+/*
+ * HTML <HR> (Horizontal Rule) element handler
+ */
+int
+html_hr(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET){
+ int i, old_wrap, width, align;
+ PARAMETER *p;
+
+ width = WRAP_COLS(hd->html_data);
+ align = 0;
+ for(p = HD(hd->html_data)->el_data->attribs;
+ p && p->attribute;
+ p = p->next)
+ if(p->value){
+ if(!strucmp(p->attribute, "ALIGN")){
+ if(!strucmp(p->value, "LEFT"))
+ align = 1;
+ else if(!strucmp(p->value, "RIGHT"))
+ align = 2;
+ }
+ else if(!strucmp(p->attribute, "WIDTH")){
+ char *cp;
+
+ width = 0;
+ for(cp = p->value; *cp; cp++)
+ if(*cp == '%'){
+ width = (WRAP_COLS(hd->html_data)*min(100,width))/100;
+ break;
+ }
+ else if(isdigit((unsigned char) *cp))
+ width = (width * 10) + (*cp - '0');
+
+ width = min(width, WRAP_COLS(hd->html_data));
+ }
+ }
+
+ html_blank(hd->html_data, 1); /* at least one blank line */
+
+ old_wrap = HD(hd->html_data)->wrapstate;
+ HD(hd->html_data)->wrapstate = 0;
+ if((i = max(0, WRAP_COLS(hd->html_data) - width))
+ && ((align == 0) ? i /= 2 : (align == 2)))
+ for(; i > 0; i--)
+ html_output(hd->html_data, ' ');
+
+ for(i = 0; i < width; i++)
+ html_output(hd->html_data, '_');
+
+ html_blank(hd->html_data, 1);
+ HD(hd->html_data)->wrapstate = old_wrap;
+ }
+
+ return(0); /* don't get linked */
+}
+
+
+/*
+ * HTML <P> (paragraph) element handler
+ */
+int
+html_p(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET){
+ /* Make sure there's at least 1 blank line */
+ html_blank(hd->html_data, 1);
+
+ /* adjust indent level if needed */
+ if(HD(hd->html_data)->li_pending){
+ html_indent(hd->html_data, 4, HTML_ID_INC);
+ HD(hd->html_data)->li_pending = 0;
+ }
+ }
+ else if(cmd == GF_EOD)
+ /* Make sure there's at least 1 blank line */
+ html_blank(hd->html_data, 1);
+
+ return(0); /* don't get linked */
+}
+
+
+/*
+ * HTML Table <TR> (paragraph) table row
+ */
+int
+html_tr(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET || cmd == GF_EOD)
+ /* Make sure there's at least 1 blank line */
+ html_blank(hd->html_data, 0);
+
+ return(0); /* don't get linked */
+}
+
+
+/*
+ * HTML Table <TD> (paragraph) table data
+ */
+int
+html_td(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET){
+ PARAMETER *p;
+
+ for(p = HD(hd->html_data)->el_data->attribs;
+ p && p->attribute;
+ p = p->next)
+ if(!strucmp(p->attribute, "nowrap")
+ && (hd->html_data->f2 || hd->html_data->n)){
+ HTML_DUMP_LIT(hd->html_data, " | ", 3);
+ break;
+ }
+ }
+
+ return(0); /* don't get linked */
+}
+
+
+/*
+ * HTML <I> (italic text) element handler
+ */
+int
+html_i(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ /* include LITERAL in spaceness test! */
+ if(hd->x && !isspace((unsigned char) (ch & 0xff))){
+ HTML_ULINE(hd->html_data, 1);
+ hd->x = 0;
+ }
+
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ hd->x = 1;
+ }
+ else if(cmd == GF_EOD){
+ if(!hd->x)
+ HTML_ULINE(hd->html_data, 0);
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <b> (Bold text) element handler
+ */
+int
+html_b(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ /* include LITERAL in spaceness test! */
+ if(hd->x && !isspace((unsigned char) (ch & 0xff))){
+ HTML_ULINE(hd->html_data, 1);
+ hd->x = 0;
+ }
+
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ hd->x = 1;
+ }
+ else if(cmd == GF_EOD){
+ if(!hd->x)
+ HTML_ULINE(hd->html_data, 0);
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <IMG> element handler
+ */
+int
+html_img(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET){
+ PARAMETER *p;
+ char *s = NULL;
+
+ for(p = HD(hd->html_data)->el_data->attribs;
+ p && p->attribute;
+ p = p->next)
+ if(!strucmp(p->attribute, "alt")){
+ if(p->value && p->value[0]){
+ HTML_DUMP_LIT(hd->html_data, p->value, strlen(p->value));
+ HTML_TEXT(hd->html_data, ' ');
+ }
+
+ return(0);
+ }
+
+ for(p = HD(hd->html_data)->el_data->attribs;
+ p && p->attribute;
+ p = p->next)
+ if(!strucmp(p->attribute, "src") && p->value)
+ if((s = strrindex(p->value, '/')) && *++s != '\0'){
+ HTML_TEXT(hd->html_data, '[');
+ HTML_DUMP_LIT(hd->html_data, s, strlen(s));
+ HTML_TEXT(hd->html_data, ']');
+ HTML_TEXT(hd->html_data, ' ');
+ return(0);
+ }
+
+ HTML_DUMP_LIT(hd->html_data, "[IMAGE] ", 7);
+ }
+
+ return(0); /* don't get linked */
+}
+
+
+/*
+ * HTML <FORM> (Form) element handler
+ */
+int
+html_form(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET){
+ char *p;
+
+ html_blank(hd->html_data, 0);
+
+ HTML_DUMP_LIT(hd->html_data, "[FORM]", 6);
+
+ html_blank(hd->html_data, 0);
+ }
+
+ return(0); /* don't get linked */
+}
+
+
+/*
+ * HTML <HEAD> element handler
+ */
+int
+html_head(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ HD(hd->html_data)->head = 1;
+ }
+ else if(cmd == GF_EOD){
+ HD(hd->html_data)->head = 0;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <BASE> element handler
+ */
+int
+html_base(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET){
+ if(HD(hd->html_data)->head && !HTML_BASE(hd->html_data)){
+ PARAMETER *p;
+
+ for(p = HD(hd->html_data)->el_data->attribs;
+ p && p->attribute && strucmp(p->attribute, "HREF");
+ p = p->next)
+ ;
+
+ if(p && p->value && !((HTML_OPT_S *)(hd->html_data)->opt)->base)
+ ((HTML_OPT_S *)(hd->html_data)->opt)->base = cpystr(p->value);
+ }
+ }
+
+ return(0); /* DON'T get linked */
+}
+
+
+/*
+ * HTML <TITLE> element handler
+ */
+int
+html_title(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ if(hd->x + 1 >= hd->y){
+ hd->y += 80;
+ fs_resize((void **)&hd->s, (size_t)hd->y * sizeof(unsigned char));
+ }
+
+ hd->s[hd->x++] = (unsigned char) ch;
+ }
+ else if(cmd == GF_RESET){
+ hd->x = 0L;
+ hd->y = 80L;
+ hd->s = (unsigned char *)fs_get((size_t)hd->y * sizeof(unsigned char));
+ }
+ else if(cmd == GF_EOD){
+ /* Down the road we probably want to give these bytes to
+ * someone...
+ */
+ hd->s[hd->x] = '\0';
+ fs_give((void **)&hd->s);
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <A> (Anchor) element handler
+ */
+int
+html_a(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ int i, n, x;
+ char buf[256];
+ HANDLE_S *h;
+ PARAMETER *p, *href = NULL, *name = NULL;
+
+ /*
+ * Pending Anchor!?!?
+ * space insertion/line breaking that's yet to get done...
+ */
+ if(HD(hd->html_data)->prefix){
+ dprint(1, (debugfile, "-- html_a: NESTED/UNTERMINATED ANCHOR!\n"));
+ html_a_finish(hd);
+ }
+
+ /*
+ * Look for valid Anchor data vis the filter installer's parms
+ * (e.g., Only allow references to our internal URLs if asked)
+ */
+ for(p = HD(hd->html_data)->el_data->attribs;
+ p && p->attribute;
+ p = p->next)
+ if(!strucmp(p->attribute, "HREF")
+ && p->value
+ && (HANDLES_LOC(hd->html_data)
+ || struncmp(p->value, "x-pine-", 7)))
+ href = p;
+ else if(!strucmp(p->attribute, "NAME"))
+ name = p;
+
+ if(HANDLES(hd->html_data) && (href || name)){
+ h = new_handle();
+
+ /*
+ * Enhancement: we might want to get fancier and parse the
+ * href a bit further such that we can launch images using
+ * our image viewer, or browse local files or directories
+ * with our internal tools. Of course, having the jump-off
+ * point into text/html always be the defined "web-browser",
+ * just might be the least confusing UI-wise...
+ */
+ h->type = URL;
+
+ if(name && name->value)
+ h->h.url.name = cpystr(name->value);
+
+ /*
+ * Prepare to build embedded prefix...
+ */
+ HD(hd->html_data)->prefix = (int *) fs_get(64 * sizeof(int));
+ x = 0;
+
+ /*
+ * Is this something that looks like a URL? If not and
+ * we were giving some "base" string, proceed ala RFC1808...
+ */
+ if(href){
+ if(HTML_BASE(hd->html_data) && !rfc1738_scan(href->value, &n))
+ html_a_relative(HTML_BASE(hd->html_data), href->value, h);
+ else
+ h->h.url.path = cpystr(href->value);
+
+ if(pico_usingcolor()){
+ char *fg = NULL, *bg = NULL, *q;
+
+ if(ps_global->VAR_SLCTBL_FORE_COLOR
+ && colorcmp(ps_global->VAR_SLCTBL_FORE_COLOR,
+ ps_global->VAR_NORM_FORE_COLOR))
+ fg = ps_global->VAR_SLCTBL_FORE_COLOR;
+
+ if(ps_global->VAR_SLCTBL_BACK_COLOR
+ && colorcmp(ps_global->VAR_SLCTBL_BACK_COLOR,
+ ps_global->VAR_NORM_BACK_COLOR))
+ bg = ps_global->VAR_SLCTBL_BACK_COLOR;
+
+ if(fg || bg){
+ COLOR_PAIR *tmp;
+
+ /*
+ * The blacks are just known good colors for testing
+ * whether the other color is good.
+ */
+ tmp = new_color_pair(fg ? fg : colorx(COL_BLACK),
+ bg ? bg : colorx(COL_BLACK));
+ if(pico_is_good_colorpair(tmp)){
+ q = color_embed(fg, bg);
+
+ for(i = 0; q[i]; i++)
+ HD(hd->html_data)->prefix[x++] = q[i];
+ }
+
+ if(tmp)
+ free_color_pair(&tmp);
+ }
+
+ if(F_OFF(F_SLCTBL_ITEM_NOBOLD, ps_global))
+ HD(hd->html_data)->prefix[x++] = HTML_DOBOLD;
+ }
+ else
+ HD(hd->html_data)->prefix[x++] = HTML_DOBOLD;
+ }
+
+ HD(hd->html_data)->prefix[x++] = TAG_EMBED;
+ HD(hd->html_data)->prefix[x++] = TAG_HANDLE;
+
+ sprintf(buf, "%d", h->key);
+ HD(hd->html_data)->prefix[x++] = n = strlen(buf);
+ for(i = 0; i < n; i++)
+ HD(hd->html_data)->prefix[x++] = buf[i];
+
+ HD(hd->html_data)->prefix_used = x;
+ }
+ }
+ else if(cmd == GF_EOD){
+ html_a_finish(hd);
+ }
+
+ return(1); /* get linked */
+}
+
+
+void
+html_a_prefix(f)
+ FILTER_S *f;
+{
+ int *prefix, n;
+
+ /* Do this so we don't visit from html_output... */
+ prefix = HD(f)->prefix;
+ HD(f)->prefix = NULL;
+
+ for(n = 0; n < HD(f)->prefix_used; n++)
+ html_a_output_prefix(f, prefix[n]);
+
+ fs_give((void **) &prefix);
+}
+
+
+/*
+ * html_a_finish - house keeping associated with end of link tag
+ */
+void
+html_a_finish(hd)
+ HANDLER_S *hd;
+{
+ if(HANDLES(hd->html_data)){
+ if(HD(hd->html_data)->prefix)
+ html_a_prefix(hd->html_data);
+
+ if(pico_usingcolor()){
+ char *fg = NULL, *bg = NULL, *p;
+ int i;
+
+ if(ps_global->VAR_SLCTBL_FORE_COLOR
+ && colorcmp(ps_global->VAR_SLCTBL_FORE_COLOR,
+ ps_global->VAR_NORM_FORE_COLOR))
+ fg = ps_global->VAR_NORM_FORE_COLOR;
+
+ if(ps_global->VAR_SLCTBL_BACK_COLOR
+ && colorcmp(ps_global->VAR_SLCTBL_BACK_COLOR,
+ ps_global->VAR_NORM_BACK_COLOR))
+ bg = ps_global->VAR_NORM_BACK_COLOR;
+
+ if(F_OFF(F_SLCTBL_ITEM_NOBOLD, ps_global))
+ HTML_BOLD(hd->html_data, 0); /* turn OFF bold */
+
+ if(fg || bg){
+ COLOR_PAIR *tmp;
+
+ /*
+ * The blacks are just known good colors for testing
+ * whether the other color is good.
+ */
+ tmp = new_color_pair(fg ? fg : colorx(COL_BLACK),
+ bg ? bg : colorx(COL_BLACK));
+ if(pico_is_good_colorpair(tmp)){
+ p = color_embed(fg, bg);
+
+ for(i = 0; p[i]; i++)
+ html_output(hd->html_data, p[i]);
+ }
+
+ if(tmp)
+ free_color_pair(&tmp);
+ }
+ }
+ else
+ HTML_BOLD(hd->html_data, 0); /* turn OFF bold */
+
+ html_output(hd->html_data, TAG_EMBED);
+ html_output(hd->html_data, TAG_HANDLEOFF);
+ }
+}
+
+
+/*
+ * html_output_a_prefix - dump Anchor prefix data
+ */
+void
+html_a_output_prefix(f, c)
+ FILTER_S *f;
+ int c;
+{
+ switch(c){
+ case HTML_DOBOLD :
+ HTML_BOLD(f, 1);
+ break;
+
+ default :
+ html_output(f, c);
+ break;
+ }
+}
+
+
+
+/*
+ * relative_url - put full url path in h based on base and relative url
+ */
+void
+html_a_relative(base_url, rel_url, h)
+ char *base_url, *rel_url;
+ HANDLE_S *h;
+{
+ size_t len;
+ char tmp[MAILTMPLEN], *p, *q;
+ char *scheme = NULL, *net = NULL, *path = NULL,
+ *parms = NULL, *query = NULL, *frag = NULL,
+ *base_scheme = NULL, *base_net_loc = NULL,
+ *base_path = NULL, *base_parms = NULL,
+ *base_query = NULL, *base_frag = NULL,
+ *rel_scheme = NULL, *rel_net_loc = NULL,
+ *rel_path = NULL, *rel_parms = NULL,
+ *rel_query = NULL, *rel_frag = NULL;
+
+ /* Rough parse of base URL */
+ rfc1808_tokens(base_url, &base_scheme, &base_net_loc, &base_path,
+ &base_parms, &base_query, &base_frag);
+
+ /* Rough parse of this URL */
+ rfc1808_tokens(rel_url, &rel_scheme, &rel_net_loc, &rel_path,
+ &rel_parms, &rel_query, &rel_frag);
+
+ scheme = rel_scheme; /* defaults */
+ net = rel_net_loc;
+ path = rel_path;
+ parms = rel_parms;
+ query = rel_query;
+ frag = rel_frag;
+ if(!scheme && base_scheme){
+ scheme = base_scheme;
+ if(!net){
+ net = base_net_loc;
+ if(path){
+ if(*path != '/'){
+ if(base_path){
+ for(p = q = base_path; /* Drop base path's tail */
+ p = strchr(p, '/');
+ q = ++p)
+ ;
+
+ len = q - base_path;
+ }
+ else
+ len = 0;
+
+ if(len + strlen(rel_path) < MAILTMPLEN - 1){
+ if(len)
+ sprintf(path = tmp, "%.*s", len, base_path);
+
+ strcpy(tmp + len, rel_path);
+
+ /* Follow RFC 1808 "Step 6" */
+ for(p = tmp; p = strchr(p, '.'); )
+ switch(*(p+1)){
+ /*
+ * a) All occurrences of "./", where "." is a
+ * complete path segment, are removed.
+ */
+ case '/' :
+ if(p > tmp)
+ for(q = p; *q = *(q+2); q++)
+ ;
+ else
+ p++;
+
+ break;
+
+ /*
+ * b) If the path ends with "." as a
+ * complete path segment, that "." is
+ * removed.
+ */
+ case '\0' :
+ if(p == tmp || *(p-1) == '/')
+ *p = '\0';
+ else
+ p++;
+
+ break;
+
+ /*
+ * c) All occurrences of "<segment>/../",
+ * where <segment> is a complete path
+ * segment not equal to "..", are removed.
+ * Removal of these path segments is
+ * performed iteratively, removing the
+ * leftmost matching pattern on each
+ * iteration, until no matching pattern
+ * remains.
+ *
+ * d) If the path ends with "<segment>/..",
+ * where <segment> is a complete path
+ * segment not equal to "..", that
+ * "<segment>/.." is removed.
+ */
+ case '.' :
+ if(p > tmp + 1){
+ for(q = p - 2; q > tmp && *q != '/'; q--)
+ ;
+
+ if(*q == '/')
+ q++;
+
+ if(q + 1 == p /* no "//.." */
+ || (*q == '.' /* and "../.." */
+ && *(q+1) == '.'
+ && *(q+2) == '/')){
+ p += 2;
+ break;
+ }
+
+ switch(*(p+2)){
+ case '/' :
+ len = (p - q) + 3;
+ p = q;
+ for(; *q = *(q+len); q++)
+ ;
+
+ break;
+
+ case '\0':
+ *(p = q) = '\0';
+ break;
+
+ default:
+ p += 2;
+ break;
+ }
+ }
+ else
+ p += 2;
+
+ break;
+
+ default :
+ p++;
+ break;
+ }
+ }
+ else
+ path = ""; /* lame. */
+ }
+ }
+ else{
+ path = base_path;
+ if(!parms){
+ parms = base_parms;
+ if(!query)
+ query = base_query;
+ }
+ }
+ }
+ }
+
+ len = (scheme ? strlen(scheme) : 0) + (net ? strlen(net) : 0)
+ + (path ? strlen(path) : 0) + (parms ? strlen(parms) : 0)
+ + (query ? strlen(query) : 0) + (frag ? strlen(frag ) : 0) + 8;
+
+ h->h.url.path = (char *) fs_get(len * sizeof(char));
+ sprintf(h->h.url.path, "%s%s%s%s%s%s%s%s%s%s%s%s",
+ scheme ? scheme : "", scheme ? ":" : "",
+ net ? "//" : "", net ? net : "",
+ (path && *path == '/') ? "" : ((path && net) ? "/" : ""),
+ path ? path : "",
+ parms ? ";" : "", parms ? parms : "",
+ query ? "?" : "", query ? query : "",
+ frag ? "#" : "", frag ? frag : "");
+
+ if(base_scheme)
+ fs_give((void **) &base_scheme);
+
+ if(base_net_loc)
+ fs_give((void **) &base_net_loc);
+
+ if(base_path)
+ fs_give((void **) &base_path);
+
+ if(base_parms)
+ fs_give((void **) &base_parms);
+
+ if(base_query)
+ fs_give((void **) &base_query);
+
+ if(base_frag)
+ fs_give((void **) &base_frag);
+
+ if(rel_scheme)
+ fs_give((void **) &rel_scheme);
+
+ if(rel_net_loc)
+ fs_give((void **) &rel_net_loc);
+
+ if(rel_parms)
+ fs_give((void **) &rel_parms);
+
+ if(rel_query)
+ fs_give((void **) &rel_query);
+
+ if(rel_frag)
+ fs_give((void **) &rel_frag);
+
+ if(rel_path)
+ fs_give((void **) &rel_path);
+}
+
+
+/*
+ * HTML <UL> (Unordered List) element handler
+ */
+int
+html_ul(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ HD(hd->html_data)->li_pending = 1;
+ html_blank(hd->html_data, 0);
+ }
+ else if(cmd == GF_EOD){
+ html_blank(hd->html_data, 0);
+
+ if(!HD(hd->html_data)->li_pending)
+ html_indent(hd->html_data, -4, HTML_ID_INC);
+ else
+ HD(hd->html_data)->li_pending = 0;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <OL> (Ordered List) element handler
+ */
+int
+html_ol(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ /*
+ * Signal that we're expecting to see <LI> as our next elemnt
+ * and set the the initial ordered count.
+ */
+ HD(hd->html_data)->li_pending = 1;
+ hd->x = 1L;
+ html_blank(hd->html_data, 0);
+ }
+ else if(cmd == GF_EOD){
+ html_blank(hd->html_data, 0);
+
+ if(!HD(hd->html_data)->li_pending)
+ html_indent(hd->html_data, -4, HTML_ID_INC);
+ else
+ HD(hd->html_data)->li_pending = 0;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <MENU> (Menu List) element handler
+ */
+int
+html_menu(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ HD(hd->html_data)->li_pending = 1;
+ }
+ else if(cmd == GF_EOD){
+ html_blank(hd->html_data, 0);
+
+ if(!HD(hd->html_data)->li_pending)
+ html_indent(hd->html_data, -4, HTML_ID_INC);
+ else
+ HD(hd->html_data)->li_pending = 0;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <DIR> (Directory List) element handler
+ */
+int
+html_dir(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ HD(hd->html_data)->li_pending = 1;
+ }
+ else if(cmd == GF_EOD){
+ html_blank(hd->html_data, 0);
+
+ if(!HD(hd->html_data)->li_pending)
+ html_indent(hd->html_data, -4, HTML_ID_INC);
+ else
+ HD(hd->html_data)->li_pending = 0;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <LI> (List Item) element handler
+ */
+int
+html_li(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET){
+ HANDLER_S *p, *found = NULL;
+
+ /*
+ * There better be a an unordered list, ordered list,
+ * Menu or Directory handler installed
+ * or else we crap out...
+ */
+ for(p = HANDLERS(hd->html_data); p; p = p->below)
+ if(p->f == html_ul || p->f == html_ol
+ || p->f == html_menu || p->f == html_dir){
+ found = p;
+ break;
+ }
+
+ if(found){
+ char buf[8], *p;
+ int wrapstate;
+
+ /* Start a new line */
+ html_blank(hd->html_data, 0);
+
+ /* adjust indent level if needed */
+ if(HD(hd->html_data)->li_pending){
+ html_indent(hd->html_data, 4, HTML_ID_INC);
+ HD(hd->html_data)->li_pending = 0;
+ }
+
+ if(found->f == html_ul){
+ int l = html_indent(hd->html_data, 0, HTML_ID_GET);
+
+ strcpy(buf, " ");
+ buf[1] = (l < 5) ? '*' : (l < 9) ? '+' : (l < 17) ? 'o' : '#';
+ }
+ else if(found->f == html_ol)
+ sprintf(buf, "%2ld.", found->x++);
+ else if(found->f == html_menu)
+ strcpy(buf, " ->");
+
+ html_indent(hd->html_data, -4, HTML_ID_INC);
+
+ /* So we don't munge whitespace */
+ wrapstate = HD(hd->html_data)->wrapstate;
+ HD(hd->html_data)->wrapstate = 0;
+
+ html_write_indent(hd->html_data, HD(hd->html_data)->indent_level);
+ for(p = buf; *p; p++)
+ html_output(hd->html_data, (int) *p);
+
+ HD(hd->html_data)->wrapstate = wrapstate;
+ html_indent(hd->html_data, 4, HTML_ID_INC);
+ }
+ /* BUG: should really bitch about this */
+ }
+
+ return(0); /* DON'T get linked */
+}
+
+
+
+/*
+ * HTML <DL> (Definition List) element handler
+ */
+int
+html_dl(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ /*
+ * Set indention level for definition terms and definitions...
+ */
+ hd->x = html_indent(hd->html_data, 0, HTML_ID_GET);
+ hd->y = hd->x + 2;
+ hd->z = hd->y + 4;
+ }
+ else if(cmd == GF_EOD){
+ html_indent(hd->html_data, (int) hd->x, HTML_ID_SET);
+ html_blank(hd->html_data, 1);
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <DT> (Definition Term) element handler
+ */
+int
+html_dt(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET){
+ HANDLER_S *p;
+
+ /*
+ * There better be a Definition Handler installed
+ * or else we crap out...
+ */
+ for(p = HANDLERS(hd->html_data); p && p->f != html_dl; p = p->below)
+ ;
+
+ if(p){ /* adjust indent level if needed */
+ html_indent(hd->html_data, (int) p->y, HTML_ID_SET);
+ html_blank(hd->html_data, 1);
+ }
+ /* BUG: else should really bitch about this */
+ }
+
+ return(0); /* DON'T get linked */
+}
+
+
+/*
+ * HTML <DD> (Definition Definition) element handler
+ */
+int
+html_dd(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_RESET){
+ HANDLER_S *p;
+
+ /*
+ * There better be a Definition Handler installed
+ * or else we crap out...
+ */
+ for(p = HANDLERS(hd->html_data); p && p->f != html_dl; p = p->below)
+ ;
+
+ if(p){ /* adjust indent level if needed */
+ html_indent(hd->html_data, (int) p->z, HTML_ID_SET);
+ html_blank(hd->html_data, 0);
+ }
+ /* BUG: should really bitch about this */
+ }
+
+ return(0); /* DON'T get linked */
+}
+
+
+/*
+ * HTML <H1> (Headings 1) element handler.
+ *
+ * Bold, very-large font, CENTERED. One or two blank lines
+ * above and below. For our silly character cell's that
+ * means centered and ALL CAPS...
+ */
+int
+html_h1(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ /* turn ON the centered bit */
+ CENTER_BIT(hd->html_data) = 1;
+ }
+ else if(cmd == GF_EOD){
+ /* turn OFF the centered bit, add blank line */
+ CENTER_BIT(hd->html_data) = 0;
+ html_blank(hd->html_data, 1);
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <H2> (Headings 2) element handler
+ */
+int
+html_h2(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ if((hd->x & HTML_HX_ULINE) && !isspace((unsigned char) (ch & 0xff))){
+ HTML_ULINE(hd->html_data, 1);
+ hd->x ^= HTML_HX_ULINE; /* only once! */
+ }
+
+ html_handoff(hd, (ch < 128 && islower((unsigned char) ch))
+ ? toupper((unsigned char) ch) : ch);
+ }
+ else if(cmd == GF_RESET){
+ /*
+ * Bold, large font, flush-left. One or two blank lines
+ * above and below.
+ */
+ if(CENTER_BIT(hd->html_data)) /* stop centering for now */
+ hd->x = HTML_HX_CENTER;
+ else
+ hd->x = 0;
+
+ hd->x |= HTML_HX_ULINE;
+
+ CENTER_BIT(hd->html_data) = 0;
+ hd->y = html_indent(hd->html_data, 0, HTML_ID_SET);
+ hd->z = HD(hd->html_data)->wrapcol;
+ HD(hd->html_data)->wrapcol = WRAP_COLS(hd->html_data) - 8;
+ html_blank(hd->html_data, 1);
+ }
+ else if(cmd == GF_EOD){
+ /*
+ * restore previous centering, and indent level
+ */
+ if(!(hd->x & HTML_HX_ULINE))
+ HTML_ULINE(hd->html_data, 0);
+
+ html_indent(hd->html_data, hd->y, HTML_ID_SET);
+ html_blank(hd->html_data, 1);
+ CENTER_BIT(hd->html_data) = (hd->x & HTML_HX_CENTER) != 0;
+ HD(hd->html_data)->wrapcol = hd->z;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <H3> (Headings 3) element handler
+ */
+int
+html_h3(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ if((hd->x & HTML_HX_ULINE) && !isspace((unsigned char) (ch & 0xff))){
+ HTML_ULINE(hd->html_data, 1);
+ hd->x ^= HTML_HX_ULINE; /* only once! */
+ }
+
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ /*
+ * Italic, large font, slightly indented from the left
+ * margin. One or two blank lines above and below.
+ */
+ if(CENTER_BIT(hd->html_data)) /* stop centering for now */
+ hd->x = HTML_HX_CENTER;
+ else
+ hd->x = 0;
+
+ hd->x |= HTML_HX_ULINE;
+ CENTER_BIT(hd->html_data) = 0;
+ hd->y = html_indent(hd->html_data, 2, HTML_ID_SET);
+ hd->z = HD(hd->html_data)->wrapcol;
+ HD(hd->html_data)->wrapcol = WRAP_COLS(hd->html_data) - 8;
+ html_blank(hd->html_data, 1);
+ }
+ else if(cmd == GF_EOD){
+ /*
+ * restore previous centering, and indent level
+ */
+ if(!(hd->x & HTML_HX_ULINE))
+ HTML_ULINE(hd->html_data, 0);
+
+ html_indent(hd->html_data, hd->y, HTML_ID_SET);
+ html_blank(hd->html_data, 1);
+ CENTER_BIT(hd->html_data) = (hd->x & HTML_HX_CENTER) != 0;
+ HD(hd->html_data)->wrapcol = hd->z;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <H4> (Headings 4) element handler
+ */
+int
+html_h4(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ /*
+ * Bold, normal font, indented more than H3. One blank line
+ * above and below.
+ */
+ hd->x = CENTER_BIT(hd->html_data); /* stop centering for now */
+ CENTER_BIT(hd->html_data) = 0;
+ hd->y = html_indent(hd->html_data, 4, HTML_ID_SET);
+ hd->z = HD(hd->html_data)->wrapcol;
+ HD(hd->html_data)->wrapcol = WRAP_COLS(hd->html_data) - 8;
+ html_blank(hd->html_data, 1);
+ }
+ else if(cmd == GF_EOD){
+ /*
+ * restore previous centering, and indent level
+ */
+ html_indent(hd->html_data, (int) hd->y, HTML_ID_SET);
+ html_blank(hd->html_data, 1);
+ CENTER_BIT(hd->html_data) = hd->x;
+ HD(hd->html_data)->wrapcol = hd->z;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <H5> (Headings 5) element handler
+ */
+int
+html_h5(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ /*
+ * Italic, normal font, indented as H4. One blank line
+ * above.
+ */
+ hd->x = CENTER_BIT(hd->html_data); /* stop centering for now */
+ CENTER_BIT(hd->html_data) = 0;
+ hd->y = html_indent(hd->html_data, 6, HTML_ID_SET);
+ hd->z = HD(hd->html_data)->wrapcol;
+ HD(hd->html_data)->wrapcol = WRAP_COLS(hd->html_data) - 8;
+ html_blank(hd->html_data, 1);
+ }
+ else if(cmd == GF_EOD){
+ /*
+ * restore previous centering, and indent level
+ */
+ html_indent(hd->html_data, (int) hd->y, HTML_ID_SET);
+ html_blank(hd->html_data, 1);
+ CENTER_BIT(hd->html_data) = hd->x;
+ HD(hd->html_data)->wrapcol = hd->z;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <H6> (Headings 6) element handler
+ */
+int
+html_h6(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ /*
+ * Bold, indented same as normal text, more than H5. One
+ * blank line above.
+ */
+ hd->x = CENTER_BIT(hd->html_data); /* stop centering for now */
+ CENTER_BIT(hd->html_data) = 0;
+ hd->y = html_indent(hd->html_data, 8, HTML_ID_SET);
+ hd->z = HD(hd->html_data)->wrapcol;
+ HD(hd->html_data)->wrapcol = WRAP_COLS(hd->html_data) - 8;
+ html_blank(hd->html_data, 1);
+ }
+ else if(cmd == GF_EOD){
+ /*
+ * restore previous centering, and indent level
+ */
+ html_indent(hd->html_data, (int) hd->y, HTML_ID_SET);
+ html_blank(hd->html_data, 1);
+ CENTER_BIT(hd->html_data) = hd->x;
+ HD(hd->html_data)->wrapcol = hd->z;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <BlockQuote> element handler
+ */
+int
+html_blockquote(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ int j;
+#define HTML_BQ_INDENT 6
+
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ /*
+ * A typical rendering might be a slight extra left and
+ * right indent, and/or italic font. The Blockquote element
+ * causes a paragraph break, and typically provides space
+ * above and below the quote.
+ */
+ html_indent(hd->html_data, HTML_BQ_INDENT, HTML_ID_INC);
+ j = HD(hd->html_data)->wrapstate;
+ HD(hd->html_data)->wrapstate = 0;
+ html_blank(hd->html_data, 1);
+ HD(hd->html_data)->wrapstate = j;
+ HD(hd->html_data)->wrapcol -= HTML_BQ_INDENT;
+ }
+ else if(cmd == GF_EOD){
+ html_blank(hd->html_data, 1);
+
+ j = HD(hd->html_data)->wrapstate;
+ HD(hd->html_data)->wrapstate = 0;
+ html_indent(hd->html_data, -(HTML_BQ_INDENT), HTML_ID_INC);
+ HD(hd->html_data)->wrapstate = j;
+ HD(hd->html_data)->wrapcol += HTML_BQ_INDENT;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <Address> element handler
+ */
+int
+html_address(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ int j;
+#define HTML_ADD_INDENT 2
+
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ /*
+ * A typical rendering might be a slight extra left and
+ * right indent, and/or italic font. The Blockquote element
+ * causes a paragraph break, and typically provides space
+ * above and below the quote.
+ */
+ html_indent(hd->html_data, HTML_ADD_INDENT, HTML_ID_INC);
+ j = HD(hd->html_data)->wrapstate;
+ HD(hd->html_data)->wrapstate = 0;
+ html_blank(hd->html_data, 1);
+ HD(hd->html_data)->wrapstate = j;
+ }
+ else if(cmd == GF_EOD){
+ html_blank(hd->html_data, 1);
+
+ j = HD(hd->html_data)->wrapstate;
+ HD(hd->html_data)->wrapstate = 0;
+ html_indent(hd->html_data, -(HTML_ADD_INDENT), HTML_ID_INC);
+ HD(hd->html_data)->wrapstate = j;
+ }
+
+ return(1); /* get linked */
+}
+
+
+/*
+ * HTML <PRE> (Preformatted Text) element handler
+ */
+int
+html_pre(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ /*
+ * remove CRLF after '>' in element.
+ * We see CRLF because wrapstate is off.
+ */
+ switch(hd->y){
+ case 2 :
+ if(ch == '\012'){
+ hd->y = 3;
+ return(1);
+ }
+ else
+ html_handoff(hd, '\015');
+
+ break;
+
+ case 1 :
+ if(ch == '\015'){
+ hd->y = 2;
+ return(1);
+ }
+
+ default :
+ hd->y = 0;
+ break;
+ }
+
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ html_blank(hd->html_data, 1);
+ hd->x = HD(hd->html_data)->wrapstate;
+ HD(hd->html_data)->wrapstate = 0;
+ hd->y = 1;
+ }
+ else if(cmd == GF_EOD){
+ HD(hd->html_data)->wrapstate = (hd->x != 0);
+ html_blank(hd->html_data, 0);
+ }
+
+ return(1);
+}
+
+
+
+
+/*
+ * HTML <CENTER> (Centerd Text) element handler
+ */
+int
+html_center(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ /* turn ON the centered bit */
+ CENTER_BIT(hd->html_data) = 1;
+ }
+ else if(cmd == GF_EOD){
+ /* turn OFF the centered bit */
+ CENTER_BIT(hd->html_data) = 0;
+ }
+
+ return(1);
+}
+
+
+
+/*
+ * HTML <DIV> (Document Divisions) element handler
+ */
+int
+html_div(hd, ch, cmd)
+ HANDLER_S *hd;
+ int ch, cmd;
+{
+ if(cmd == GF_DATA){
+ html_handoff(hd, ch);
+ }
+ else if(cmd == GF_RESET){
+ PARAMETER *p;
+
+ for(p = HD(hd->html_data)->el_data->attribs;
+ p && p->attribute;
+ p = p->next)
+ if(!strucmp(p->attribute, "ALIGN")){
+ if(p->value){
+ /* remember previous values */
+ hd->x = CENTER_BIT(hd->html_data);
+ hd->y = html_indent(hd->html_data, 0, HTML_ID_GET);
+
+ html_blank(hd->html_data, 0);
+ CENTER_BIT(hd->html_data) = !strucmp(p->value, "CENTER");
+ html_indent(hd->html_data, 0, HTML_ID_SET);
+ /* NOTE: "RIGHT" not supported yet */
+ }
+ }
+ }
+ else if(cmd == GF_EOD){
+ /* restore centered bit and indentiousness */
+ CENTER_BIT(hd->html_data) = hd->y;
+ html_indent(hd->html_data, hd->y, HTML_ID_SET);
+ html_blank(hd->html_data, 0);
+ }
+
+ return(1);
+}
+
+
+
+/*
+ * return the function associated with the given element name
+ */
+html_f
+html_element_func(el_name)
+ char *el_name;
+{
+ register int i;
+
+ for(i = 0; element_table[i].element; i++)
+ if(!strucmp(el_name, element_table[i].element))
+ return(element_table[i].handler);
+
+ return(NULL);
+}
+
+
+/*
+ * collect element's name and any attribute/value pairs then
+ * dispatch to the appropriate handler.
+ *
+ * Returns 1 : got what we wanted
+ * 0 : we need more data
+ * -1 : bogus input
+ */
+int
+html_element_collector(fd, ch)
+ FILTER_S *fd;
+ int ch;
+{
+ if(ch == '>'){
+ if(ED(fd)->overrun){
+ /*
+ * If problem processing, don't bother doing anything
+ * internally, just return such that none of what we've
+ * digested is displayed.
+ */
+ HTML_DEBUG_EL("too long", ED(fd));
+ return(1); /* Let it go, Jim */
+ }
+ else if(ED(fd)->mkup_decl){
+ if(ED(fd)->badform){
+ dprint(2, (debugfile, "-- html <!-- BAD: %.*s\n",
+ ED(fd)->len, ED(fd)->buf));
+ /*
+ * Invalid comment -- make some guesses as
+ * to whether we should stop with this greater-than...
+ */
+ if(ED(fd)->buf[0] != '-'
+ || ED(fd)->len < 4
+ || (ED(fd)->buf[1] == '-'
+ && ED(fd)->buf[ED(fd)->len - 1] == '-'
+ && ED(fd)->buf[ED(fd)->len - 2] == '-'))
+ return(1);
+ }
+ else{
+ dprint(2, (debugfile, "-- html <!-- OK: %.*s\n",
+ ED(fd)->len, ED(fd)->buf));
+ if(ED(fd)->start_comment == ED(fd)->end_comment){
+ if(ED(fd)->len > 10){
+ ED(fd)->buf[ED(fd)->len - 2] = '\0';
+ html_element_comment(fd, ED(fd)->buf + 2);
+ }
+
+ return(1);
+ }
+ /* else keep collecting comment below */
+ }
+ }
+ else if(!ED(fd)->quoted || ED(fd)->badform){
+ html_f f;
+
+ /*
+ * We either have the whole thing or all that we could
+ * salvage from it. Try our best...
+ */
+
+ if(HD(fd)->bitbucket)
+ return(1); /* element inside chtml clause! */
+
+ if(!ED(fd)->badform && html_element_flush(ED(fd)))
+ return(1); /* return without display... */
+
+ /*
+ * If we ran into an empty tag or we don't know how to deal
+ * with it, just go on, ignoring it...
+ */
+ if(ED(fd)->element && (f = html_element_func(ED(fd)->element))){
+ /* dispatch the element's handler */
+ if(ED(fd)->end_tag)
+ html_pop(fd, f); /* remove it's handler */
+ else
+ html_push(fd, f); /* add it's handler */
+
+ HTML_DEBUG_EL(ED(fd)->end_tag ? "POP" : "PUSH", ED(fd));
+ }
+ else{ /* else, empty or unrecognized */
+ HTML_DEBUG_EL("?", ED(fd));
+ }
+
+ return(1); /* all done! see, that didn't hurt */
+ }
+ }
+
+ if(ED(fd)->mkup_decl){
+ if((ch &= 0xff) == '-'){
+ if(ED(fd)->hyphen){
+ ED(fd)->hyphen = 0;
+ if(ED(fd)->start_comment)
+ ED(fd)->end_comment = 1;
+ else
+ ED(fd)->start_comment = 1;
+ }
+ else
+ ED(fd)->hyphen = 1;
+ }
+ else{
+ if(ED(fd)->end_comment)
+ ED(fd)->start_comment = ED(fd)->end_comment = 0;
+
+ /*
+ * no "--" after ! or non-whitespace between comments - bad
+ */
+ if(ED(fd)->len < 2 || (!ED(fd)->start_comment
+ && !isspace((unsigned char) ch)))
+ ED(fd)->badform = 1; /* non-comment! */
+
+ ED(fd)->hyphen = 0;
+ }
+
+ /*
+ * Remember the comment for possible later processing, if
+ * it get's too long, remember first and last few chars
+ * so we know when to terminate (and throw some garbage
+ * in between when we toss out what's between.
+ */
+ if(ED(fd)->len == HTML_BUF_LEN){
+ ED(fd)->buf[2] = ED(fd)->buf[3] = 'X';
+ ED(fd)->buf[4] = ED(fd)->buf[ED(fd)->len - 2];
+ ED(fd)->buf[5] = ED(fd)->buf[ED(fd)->len - 1];
+ ED(fd)->len = 6;
+ }
+
+ ED(fd)->buf[(ED(fd)->len)++] = ch;
+ return(0); /* comments go in the bit bucket */
+ }
+ else if(ED(fd)->overrun || ED(fd)->badform){
+ return(0); /* swallow char's until next '>' */
+ }
+ else if(!ED(fd)->element && !ED(fd)->len){
+ if(ch == '/'){ /* validate leading chars */
+ ED(fd)->end_tag = 1;
+ return(0);
+ }
+ else if(ch == '!'){
+ ED(fd)->mkup_decl = 1;
+ return(0);
+ }
+ else if(!isalpha((unsigned char) ch))
+ return(-1); /* can't be a tag! */
+ }
+ else if(ch == '\"' || ch == '\''){
+ if(!ED(fd)->hit_equal){
+ ED(fd)->badform = 1; /* quote in element name?!? */
+ return(0);
+ }
+
+ if(ED(fd)->quoted){
+ if(ED(fd)->quoted == (char) ch){
+ ED(fd)->quoted = 0;
+ return(0); /* continue collecting chars */
+ }
+ /* else fall thru writing other quoting char */
+ }
+ else{
+ ED(fd)->quoted = (char) ch;
+ return(0); /* need more data */
+ }
+ }
+
+ ch &= 0xff; /* strip any "literal" high bits */
+ if(ED(fd)->quoted
+ || isalnum(ch)
+ || strchr("-.!", ch)
+ || (ED(fd)->hit_equal && !isspace((unsigned char) ch))){
+ if(ED(fd)->len < ((ED(fd)->element || !ED(fd)->hit_equal)
+ ? HTML_BUF_LEN:MAX_ELEMENT)){
+ ED(fd)->buf[(ED(fd)->len)++] = ch;
+ }
+ else
+ ED(fd)->overrun = 1; /* flag it broken */
+ }
+ else if(isspace((unsigned char) ch) || ch == '='){
+ if(html_element_flush(ED(fd))){
+ ED(fd)->badform = 1;
+ return(0); /* else, we ain't done yet */
+ }
+
+ if(!ED(fd)->hit_equal)
+ ED(fd)->hit_equal = (ch == '=');
+ }
+ else
+ ED(fd)->badform = 1; /* unrecognized data?? */
+
+ return(0); /* keep collecting */
+}
+
+
+/*
+ * Element collector found complete string, integrate it and reset
+ * internal collection buffer.
+ *
+ * Returns zero if element collection buffer flushed, error flag otherwise
+ */
+int
+html_element_flush(el_data)
+ CLCTR_S *el_data;
+{
+ int rv = 0;
+
+ if(el_data->hit_equal){ /* adding a value */
+ el_data->hit_equal = 0;
+ if(el_data->cur_attrib){
+ if(!el_data->cur_attrib->value){
+ el_data->cur_attrib->value = cpystr(el_data->len
+ ? el_data->buf : "");
+ }
+ else{
+ dprint(2, (debugfile,
+ "** element: unexpected value: %.10s...\n",
+ el_data->len ? el_data->buf : "\"\""));
+ rv = 1;
+ }
+ }
+ else{
+ dprint(2, (debugfile,
+ "** element: missing attribute name: %.10s...\n",
+ el_data->len ? el_data->buf : "\"\""));
+ rv = 2;
+ }
+
+ el_data->len = 0;
+ memset(el_data->buf, 0, HTML_BUF_LEN);
+ }
+ else if(el_data->len){
+ if(!el_data->element){
+ el_data->element = cpystr(el_data->buf);
+ }
+ else{
+ PARAMETER *p = (PARAMETER *)fs_get(sizeof(PARAMETER));
+ memset(p, 0, sizeof(PARAMETER));
+ if(el_data->attribs){
+ el_data->cur_attrib->next = p;
+ el_data->cur_attrib = p;
+ }
+ else
+ el_data->attribs = el_data->cur_attrib = p;
+
+ p->attribute = cpystr(el_data->buf);
+ }
+
+ el_data->len = 0;
+ memset(el_data->buf, 0, HTML_BUF_LEN);
+ }
+
+ return(rv); /* report whatever happened above */
+}
+
+
+/*
+ * html_element_comment - "Special" comment handling here
+ */
+void
+html_element_comment(f, s)
+ FILTER_S *f;
+ char *s;
+{
+ char *p;
+
+ while(*s && isspace((unsigned char) *s))
+ s++;
+
+ /*
+ * WARNING: "!--chtml" denotes "Conditional HTML", a UW-ism.
+ */
+ if(!struncmp(s, "chtml ", 6)){
+ s += 6;
+ if(!struncmp(s, "if ", 3)){
+ HD(f)->bitbucket = 1; /* default is failure! */
+ switch(*(s += 3)){
+ case 'P' :
+ case 'p' :
+ if(!struncmp(s + 1, "inemode=", 8)){
+ if(!strucmp(s = removing_quotes(s + 9), "function_key")
+ && F_ON(F_USE_FK, ps_global))
+ HD(f)->bitbucket = 0;
+ else if(!strucmp(s, "running"))
+ HD(f)->bitbucket = 0;
+ else if(!strucmp(s, "phone_home") && ps_global->phone_home)
+ HD(f)->bitbucket = 0;
+#ifdef _WINDOWS
+ else if(!strucmp(s, "os_windows"))
+ HD(f)->bitbucket = 0;
+#endif
+ }
+
+ break;
+
+ case '[' : /* test */
+ if(p = strindex(++s, ']')){
+ *p = '\0'; /* tie off test string */
+ removing_leading_white_space(s);
+ removing_trailing_white_space(s);
+ if(*s == '-' && *(s+1) == 'r'){ /* readable file? */
+ for(s += 2; *s && isspace((unsigned char) *s); s++)
+ ;
+
+
+ HD(f)->bitbucket = (can_access(removing_quotes(s),
+ READ_ACCESS) != 0);
+ }
+ }
+
+ break;
+
+ default :
+ break;
+ }
+ }
+ else if(!strucmp(s, "else")){
+ HD(f)->bitbucket = !HD(f)->bitbucket;
+ }
+ else if(!strucmp(s, "endif")){
+ /* Clean up after chtml here */
+ HD(f)->bitbucket = 0;
+ }
+ }
+ else if(!HD(f)->bitbucket){
+ if(!struncmp(s, "#include ", 9)){
+ char buf[MAILTMPLEN], *bufp;
+ int len, end_of_line;
+ FILE *fp;
+
+ /* Include the named file */
+ if(!struncmp(s += 9, "file=", 5)
+ && (fp = fopen(removing_quotes(s+5), "r"))){
+ html_element_output(f, HTML_NEWLINE);
+
+ while(fgets(buf, MAILTMPLEN, fp)){
+ if((len = strlen(buf)) && buf[len-1] == '\n'){
+ end_of_line = 1;
+ buf[--len] = '\0';
+ }
+ else
+ end_of_line = 0;
+
+ for(bufp = buf; len; bufp++, len--)
+ html_element_output(f, (int) *bufp);
+
+ if(end_of_line)
+ html_element_output(f, HTML_NEWLINE);
+ }
+
+ fclose(fp);
+ html_element_output(f, HTML_NEWLINE);
+ HD(f)->blanks = 0;
+ if(f->f1 == WSPACE)
+ f->f1 = DFL;
+ }
+ }
+ else if(!struncmp(s, "#echo ", 6)){
+ if(!struncmp(s += 6, "var=", 4)){
+ char *p, buf[MAILTMPLEN];
+ ADDRESS *adr;
+ extern char datestamp[];
+
+ if(!strcmp(s = removing_quotes(s + 4), "PINE_VERSION")){
+ p = pine_version;
+ }
+ else if(!strcmp(s, "PINE_COMPILE_DATE")){
+ p = datestamp;
+ }
+ else if(!strcmp(s, "PINE_TODAYS_DATE")){
+ rfc822_date(p = buf);
+ }
+ else if(!strcmp(s, "_LOCAL_FULLNAME_")){
+ p = (ps_global->VAR_LOCAL_FULLNAME
+ && ps_global->VAR_LOCAL_FULLNAME[0])
+ ? ps_global->VAR_LOCAL_FULLNAME
+ : "Local Support";
+ }
+ else if(!strcmp(s, "_LOCAL_ADDRESS_")){
+ p = (ps_global->VAR_LOCAL_ADDRESS
+ && ps_global->VAR_LOCAL_ADDRESS[0])
+ ? ps_global->VAR_LOCAL_ADDRESS
+ : "postmaster";
+ adr = rfc822_parse_mailbox(&p, ps_global->maildomain);
+ sprintf(p = buf, "%s@%s", adr->mailbox, adr->host);
+ mail_free_address(&adr);
+ }
+ else if(!strcmp(s, "_BUGS_FULLNAME_")){
+ p = (ps_global->VAR_BUGS_FULLNAME
+ && ps_global->VAR_BUGS_FULLNAME[0])
+ ? ps_global->VAR_BUGS_FULLNAME
+ : "Place to report Pine Bugs";
+ }
+ else if(!strcmp(s, "_BUGS_ADDRESS_")){
+ p = (ps_global->VAR_BUGS_ADDRESS
+ && ps_global->VAR_BUGS_ADDRESS[0])
+ ? ps_global->VAR_BUGS_ADDRESS : "postmaster";
+ adr = rfc822_parse_mailbox(&p, ps_global->maildomain);
+ sprintf(p = buf, "%s@%s", adr->mailbox, adr->host);
+ mail_free_address(&adr);
+ }
+ else if(!strcmp(s, "CURRENT_DIR")){
+ getcwd(p = buf, MAILTMPLEN);
+ }
+ else if(!strcmp(s, "HOME_DIR")){
+ p = ps_global->home_dir;
+ }
+ else
+ p = NULL;
+
+ if(p){
+ if(f->f1 == WSPACE){
+ html_element_output(f, ' ');
+ f->f1 = DFL; /* clear it */
+ }
+
+ while(*p)
+ html_element_output(f, (int) *p++);
+ }
+ }
+ }
+ }
+}
+
+
+void
+html_element_output(f, ch)
+ FILTER_S *f;
+ int ch;
+{
+ if(HANDLERS(f))
+ (*HANDLERS(f)->f)(HANDLERS(f), ch, GF_DATA);
+ else
+ html_output(f, ch);
+}
+
+
+/*
+ * collect html entities and return its value when done.
+ *
+ * Returns 0 : we need more data
+ * 1-255 : char value of entity collected
+ * HTML_BADVALUE : good data, but no named match or out of range
+ * HTML_BADDATA : invalid input
+ *
+ * NOTES:
+ * - entity format is "'&' tag ';'" and represents a literal char
+ * - named entities are CASE SENSITIVE.
+ * - numeric char references (where the tag is prefixed with a '#')
+ * are a char with that numbers value
+ * - numeric vals are 0-255 except for the ranges: 0-8, 11-31, 127-159.
+ */
+int
+html_entity_collector(f, ch, alternate)
+ FILTER_S *f;
+ int ch;
+ char **alternate;
+{
+ static char len = 0;
+ static char buf[MAX_ENTITY];
+ int rv = 0, i;
+
+ if((len == 0)
+ ? (isalpha((unsigned char) ch) || ch == '#')
+ : ((isdigit((unsigned char) ch)
+ || (isalpha((unsigned char) ch) && buf[0] != '#'))
+ && len < MAX_ENTITY - 1)){
+ buf[len++] = ch;
+ }
+ else if((isspace((unsigned char) ch) || ch == ';') && len){
+ buf[len] = '\0'; /* got something! */
+ switch(buf[0]){
+ case '#' :
+ rv = atoi(&buf[1]);
+ if(F_ON(F_PASS_CONTROL_CHARS, ps_global)
+ || (rv == '\t' || rv == '\n' || rv == '\r'
+ || (rv > 31 && rv < 127) || (rv > 159 && rv < 256))){
+ if(alternate)
+ for(i = 0, *alternate = NULL; entity_tab[i].name; i++)
+ if(entity_tab[i].value == rv){
+ *alternate = entity_tab[i].plain;
+ break;
+ }
+ }
+ else
+ rv = HTML_BADVALUE;
+
+ break;
+
+ default :
+ rv = HTML_BADVALUE; /* in case we fail below */
+ for(i = 0; entity_tab[i].name; i++)
+ if(strcmp(entity_tab[i].name, buf) == 0){
+ rv = entity_tab[i].value;
+ if(alternate)
+ *alternate = entity_tab[i].plain;
+
+ break;
+ }
+
+ break;
+ }
+ }
+ else
+ rv = HTML_BADDATA; /* bogus input! */
+
+ if(rv){ /* nonzero return, clean up */
+ if(rv > 0xff && alternate){ /* provide bogus data to caller */
+ buf[len] = '\0';
+ *alternate = buf;
+ }
+
+ len = 0;
+ }
+
+ return(rv);
+}
+
+
+/*----------------------------------------------------------------------
+ HTML text to plain text filter
+
+ This basically tries to do the best it can with HTML 2.0 (RFC1866)
+ with bits of RFC 1942 (plus some HTML 3.2 thrown in as well) text
+ formatting.
+
+ ----*/
+void
+gf_html2plain(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+/* BUG: qoute incoming \255 values (see "yuml" above!) */
+ if(flg == GF_DATA){
+ register int c;
+ GF_INIT(f, f->next);
+
+ while(GF_GETC(f, c)){
+ /*
+ * First we have to collect any literal entities...
+ * that is, IF we're not already collecting one
+ * AND we're not in element's text or, if we are, we're
+ * not in quoted text. Whew.
+ */
+ if(f->t){
+ int i;
+ char *alt = NULL;
+
+ switch(i = html_entity_collector(f, c, &alt)){
+ case 0: /* more data required? */
+ continue; /* go get another char */
+
+ case HTML_BADVALUE :
+ case HTML_BADDATA :
+ /* if supplied, process bogus data */
+ HTML_PROC(f, '&');
+ for(; *alt; alt++)
+ HTML_PROC(f, *alt);
+
+ if(c == '&' && !HD(f)->quoted){
+ f->t = '&';
+ continue;
+ }
+ else
+ f->t = 0; /* don't come back next time */
+
+ break;
+
+ default : /* thing to process */
+ f->t = 0; /* don't come back */
+
+ /*
+ * Map some of the undisplayable entities?
+ */
+ if(HD(f)->alt_entity && i > 127 && alt && alt[0]){
+ for(; *alt; alt++){
+ c = MAKE_LITERAL(*alt);
+ HTML_PROC(f, c);
+ }
+
+ continue;
+ }
+
+ c = MAKE_LITERAL(i);
+ break;
+ }
+ }
+ else if(c == '&' && !HD(f)->quoted){
+ f->t = '&';
+ continue;
+ }
+
+ /*
+ * then we process whatever we got...
+ */
+
+ HTML_PROC(f, c);
+ }
+
+ GF_OP_END(f); /* clean up our input pointers */
+ }
+ else if(flg == GF_EOD){
+ while(HANDLERS(f))
+ /* BUG: should complain about "Unexpected end of HTML text." */
+ html_pop(f, HANDLERS(f)->f);
+
+ html_output(f, HTML_NEWLINE);
+ HTML_FLUSH(f);
+ fs_give((void **)&f->line);
+ if(HD(f)->color)
+ free_color_pair(&HD(f)->color);
+
+ fs_give(&f->data);
+ if(f->opt){
+ if(((HTML_OPT_S *)f->opt)->base)
+ fs_give((void **) &((HTML_OPT_S *)f->opt)->base);
+
+ fs_give(&f->opt);
+ }
+
+ (*f->next->f)(f->next, GF_DATA);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset html2plain\n"));
+ f->data = (HTML_DATA_S *) fs_get(sizeof(HTML_DATA_S));
+ memset(f->data, 0, sizeof(HTML_DATA_S));
+ HD(f)->wrapstate = 1; /* start with flowing text */
+ HD(f)->wrapcol = WRAP_COLS(f) - 8;
+ f->f1 = DFL; /* state */
+ f->f2 = 0; /* chars in wrap buffer */
+ f->n = 0L; /* chars on line so far */
+ f->linep = f->line = (char *)fs_get(HTML_BUF_LEN * sizeof(char));
+ HD(f)->alt_entity = (!ps_global->VAR_CHAR_SET
+ || strucmp(ps_global->VAR_CHAR_SET,
+ "iso-8859-1"));
+ }
+}
+
+
+
+/*
+ * html_indent - do the requested indent level function with appropriate
+ * flushing and such.
+ *
+ * Returns: indent level prior to set/increment
+ */
+int
+html_indent(f, val, func)
+ FILTER_S *f;
+ int val, func;
+{
+ int old = HD(f)->indent_level;
+
+ /* flush pending data at old indent level */
+ switch(func){
+ case HTML_ID_INC :
+ html_output_flush(f);
+ if((HD(f)->indent_level += val) < 0)
+ HD(f)->indent_level = 0;
+
+ break;
+
+ case HTML_ID_SET :
+ html_output_flush(f);
+ HD(f)->indent_level = val;
+ break;
+
+ default :
+ break;
+ }
+
+ return(old);
+}
+
+
+
+/*
+ * html_blanks - Insert n blank lines into output
+ */
+void
+html_blank(f, n)
+ FILTER_S *f;
+ int n;
+{
+ /* Cap off any flowing text, and then write blank lines */
+ if(f->f2 || f->n || CENTER_BIT(f) || HD(f)->centered || WRAPPED_LEN(f))
+ html_output(f, HTML_NEWLINE);
+
+ if(HD(f)->wrapstate)
+ while(HD(f)->blanks < n) /* blanks inc'd by HTML_NEWLINE */
+ html_output(f, HTML_NEWLINE);
+}
+
+
+
+/*
+ * html_newline -- insert a newline mindful of embedded tags
+ */
+void
+html_newline(f)
+ FILTER_S *f;
+{
+ html_write_newline(f); /* commit an actual newline */
+
+ if(f->n){ /* and keep track of blank lines */
+ HD(f)->blanks = 0;
+ f->n = 0L;
+ }
+ else
+ HD(f)->blanks++;
+}
+
+
+/*
+ * output the given char, handling any requested wrapping.
+ * It's understood that all whitespace handed us is written. In other
+ * words, junk whitespace is weeded out before it's given to us here.
+ *
+ */
+void
+html_output(f, ch)
+ FILTER_S *f;
+ int ch;
+{
+ if(CENTER_BIT(f)){ /* center incoming text */
+ html_output_centered(f, ch);
+ }
+ else{
+ static short embedded = 0; /* BUG: reset on entering filter */
+ static char *color_ptr = NULL;
+
+ if(HD(f)->centered){
+ html_centered_flush(f);
+ fs_give((void **) &HD(f)->centered->line.buf);
+ fs_give((void **) &HD(f)->centered->word.buf);
+ fs_give((void **) &HD(f)->centered);
+ }
+
+ if(HD(f)->wrapstate){
+ if(ch == HTML_NEWLINE){ /* hard newline */
+ html_output_flush(f);
+ html_newline(f);
+ }
+ else
+ HD(f)->blanks = 0; /* reset blank line counter */
+
+ if(ch == TAG_EMBED){ /* takes up no space */
+ embedded = 1;
+ *(f->linep)++ = TAG_EMBED;
+ }
+ else if(embedded){ /* ditto */
+ if(ch == TAG_HANDLE)
+ embedded = -1; /* next ch is length */
+ else if(ch == TAG_FGCOLOR || ch == TAG_BGCOLOR){
+ if(!HD(f)->color)
+ HD(f)->color = new_color_pair(NULL, NULL);
+
+ if(ch == TAG_FGCOLOR)
+ color_ptr = HD(f)->color->fg;
+ else
+ color_ptr = HD(f)->color->bg;
+
+ embedded = 11;
+ }
+ else if(embedded < 0){
+ embedded = ch; /* number of embedded chars */
+ }
+ else{
+ embedded--;
+ if(color_ptr)
+ *color_ptr++ = ch;
+
+ if(embedded == 0 && color_ptr){
+ *color_ptr = '\0';
+ color_ptr = NULL;
+ }
+ }
+
+ *(f->linep)++ = ch;
+ }
+ else if(HTML_ISSPACE(ch)){
+ html_output_flush(f);
+ }
+ else{
+ if(HD(f)->prefix)
+ html_a_prefix(f);
+
+ if(++f->f2 >= WRAP_COLS(f)){
+ HTML_FLUSH(f);
+ html_newline(f);
+ if(HD(f)->in_anchor)
+ html_write_anchor(f, HD(f)->in_anchor);
+ }
+ else
+ *(f->linep)++ = ch & 0xff;
+ }
+ }
+ else{
+ if(HD(f)->prefix)
+ html_a_prefix(f);
+
+ html_output_flush(f);
+
+ switch(embedded){
+ case 0 :
+ switch(ch){
+ default :
+ f->n++; /* inc displayed char count */
+ HD(f)->blanks = 0; /* reset blank line counter */
+ html_putc(f, ch & 0xff);
+ break;
+
+ case TAG_EMBED : /* takes up no space */
+ html_putc(f, TAG_EMBED);
+ embedded = -2;
+ break;
+
+ case HTML_NEWLINE : /* newline handling */
+ if(!f->n)
+ break;
+
+ case '\n' :
+ html_newline(f);
+
+ case '\r' :
+ break;
+ }
+
+ break;
+
+ case -2 :
+ embedded = 0;
+ switch(ch){
+ case TAG_HANDLE :
+ embedded = -1; /* next ch is length */
+ break;
+
+ case TAG_BOLDON :
+ BOLD_BIT(f) = 1;
+ break;
+
+ case TAG_BOLDOFF :
+ BOLD_BIT(f) = 0;
+ break;
+
+ case TAG_ULINEON :
+ ULINE_BIT(f) = 1;
+ break;
+
+ case TAG_ULINEOFF :
+ ULINE_BIT(f) = 0;
+ break;
+
+ case TAG_FGCOLOR :
+ if(!HD(f)->color)
+ HD(f)->color = new_color_pair(NULL, NULL);
+
+ color_ptr = HD(f)->color->fg;
+ embedded = 11;
+ break;
+
+ case TAG_BGCOLOR :
+ if(!HD(f)->color)
+ HD(f)->color = new_color_pair(NULL, NULL);
+
+ color_ptr = HD(f)->color->bg;
+ embedded = 11;
+ break;
+
+ case TAG_HANDLEOFF :
+ ch = TAG_INVOFF;
+ HD(f)->in_anchor = 0;
+ break;
+
+ default :
+ break;
+ }
+
+ html_putc(f, ch);
+ break;
+
+ case -1 :
+ embedded = ch; /* number of embedded chars */
+ html_putc(f, ch);
+ break;
+
+ default :
+ embedded--;
+ if(color_ptr)
+ *color_ptr++ = ch;
+
+ if(embedded == 0 && color_ptr){
+ *color_ptr = '\0';
+ color_ptr = NULL;
+ }
+
+ html_putc(f, ch);
+ break;
+ }
+ }
+ }
+}
+
+
+/*
+ * flush any buffered chars waiting for wrapping.
+ */
+void
+html_output_flush(f)
+ FILTER_S *f;
+{
+ if(f->f2){
+ if(f->n && ((int) f->n) + f->f2 > HD(f)->wrapcol)
+ html_newline(f); /* wrap? */
+
+ if(f->n){ /* text already on the line? */
+ html_putc(f, ' ');
+ f->n++; /* increment count */
+ }
+ else{
+ /* write at start of new line */
+ html_write_indent(f, HD(f)->indent_level);
+
+ if(HD(f)->in_anchor)
+ html_write_anchor(f, HD(f)->in_anchor);
+ }
+
+ f->n += f->f2;
+ HTML_FLUSH(f);
+ }
+}
+
+
+
+/*
+ * html_output_centered - managed writing centered text
+ */
+void
+html_output_centered(f, ch)
+ FILTER_S *f;
+ int ch;
+{
+ if(!HD(f)->centered){ /* new text? */
+ html_output_flush(f);
+ if(f->n) /* start on blank line */
+ html_newline(f);
+
+ HD(f)->centered = (CENTER_S *) fs_get(sizeof(CENTER_S));
+ memset(HD(f)->centered, 0, sizeof(CENTER_S));
+ /* and grab a buf to start collecting centered text */
+ HD(f)->centered->line.len = WRAP_COLS(f);
+ HD(f)->centered->line.buf = (char *) fs_get(HD(f)->centered->line.len
+ * sizeof(char));
+ HD(f)->centered->line.used = HD(f)->centered->line.width = 0;
+ HD(f)->centered->word.len = 32;
+ HD(f)->centered->word.buf = (char *) fs_get(HD(f)->centered->word.len
+ * sizeof(char));
+ HD(f)->centered->word.used = HD(f)->centered->word.width = 0;
+ }
+
+ if(ch == HTML_NEWLINE){ /* hard newline */
+ html_centered_flush(f);
+ }
+ else if(ch == TAG_EMBED){ /* takes up no space */
+ HD(f)->centered->embedded = 1;
+ html_centered_putc(&HD(f)->centered->word, TAG_EMBED);
+ }
+ else if(HD(f)->centered->embedded){
+ static char *color_ptr = NULL;
+
+ if(ch == TAG_HANDLE){
+ HD(f)->centered->embedded = -1; /* next ch is length */
+ }
+ else if(ch == TAG_FGCOLOR || ch == TAG_BGCOLOR){
+ if(!HD(f)->color)
+ HD(f)->color = new_color_pair(NULL, NULL);
+
+ if(ch == TAG_FGCOLOR)
+ color_ptr = HD(f)->color->fg;
+ else
+ color_ptr = HD(f)->color->bg;
+
+ HD(f)->centered->embedded = 11;
+ }
+ else if(HD(f)->centered->embedded < 0){
+ HD(f)->centered->embedded = ch; /* number of embedded chars */
+ }
+ else{
+ HD(f)->centered->embedded--;
+ if(color_ptr)
+ *color_ptr++ = ch;
+
+ if(HD(f)->centered->embedded == 0 && color_ptr){
+ *color_ptr = '\0';
+ color_ptr = NULL;
+ }
+ }
+
+ html_centered_putc(&HD(f)->centered->word, ch);
+ }
+ else if(isspace((unsigned char) ch)){
+ if(!HD(f)->centered->space++){ /* end of a word? flush! */
+ int i;
+
+ if(WRAPPED_LEN(f) > HD(f)->wrapcol){
+ html_centered_flush_line(f);
+ /* fall thru to put current "word" on blank "line" */
+ }
+ else if(HD(f)->centered->line.width){
+ /* put space char between line and appended word */
+ html_centered_putc(&HD(f)->centered->line, ' ');
+ HD(f)->centered->line.width++;
+ }
+
+ for(i = 0; i < HD(f)->centered->word.used; i++)
+ html_centered_putc(&HD(f)->centered->line,
+ HD(f)->centered->word.buf[i]);
+
+ HD(f)->centered->line.width += HD(f)->centered->word.width;
+ HD(f)->centered->word.used = 0;
+ HD(f)->centered->word.width = 0;
+ }
+ }
+ else{
+ if(HD(f)->prefix)
+ html_a_prefix(f);
+
+ /* ch is start of next word */
+ HD(f)->centered->space = 0;
+ if(HD(f)->centered->word.width >= WRAP_COLS(f))
+ html_centered_flush(f);
+
+ html_centered_putc(&HD(f)->centered->word, ch);
+ HD(f)->centered->word.width++;
+ }
+}
+
+
+/*
+ * html_centered_putc -- add given char to given WRAPLINE_S
+ */
+void
+html_centered_putc(wp, ch)
+ WRAPLINE_S *wp;
+ int ch;
+{
+ if(wp->used + 1 >= wp->len){
+ wp->len += 64;
+ fs_resize((void **) &wp->buf, wp->len * sizeof(char));
+ }
+
+ wp->buf[wp->used++] = ch;
+}
+
+
+
+/*
+ * html_centered_flush - finish writing any pending centered output
+ */
+void
+html_centered_flush(f)
+ FILTER_S *f;
+{
+ int i, h;
+
+ /*
+ * If word present (what about line?) we need to deal with
+ * appending it...
+ */
+ if(HD(f)->centered->word.width && WRAPPED_LEN(f) > HD(f)->wrapcol)
+ html_centered_flush_line(f);
+
+ if(WRAPPED_LEN(f)){
+ /* figure out how much to indent */
+ if((i = (WRAP_COLS(f) - WRAPPED_LEN(f))/2) > 0)
+ html_write_indent(f, i);
+
+ if(HD(f)->centered->anchor)
+ html_write_anchor(f, HD(f)->centered->anchor);
+
+ html_centered_handle(&HD(f)->centered->anchor,
+ HD(f)->centered->line.buf,
+ HD(f)->centered->line.used);
+ html_write(f, HD(f)->centered->line.buf, HD(f)->centered->line.used);
+
+ if(HD(f)->centered->word.used){
+ if(HD(f)->centered->line.width)
+ html_putc(f, ' ');
+
+ html_centered_handle(&HD(f)->centered->anchor,
+ HD(f)->centered->word.buf,
+ HD(f)->centered->word.used);
+ html_write(f, HD(f)->centered->word.buf,
+ HD(f)->centered->word.used);
+ }
+
+ HD(f)->centered->line.used = HD(f)->centered->word.used = 0;
+ HD(f)->centered->line.width = HD(f)->centered->word.width = 0;
+ }
+ else
+ HD(f)->blanks++; /* advance the blank line counter */
+
+ html_newline(f); /* finish the line */
+}
+
+
+/*
+ * html_centered_handle - scan the line for embedded handles
+ */
+void
+html_centered_handle(h, line, len)
+ int *h;
+ char *line;
+ int len;
+{
+ int n;
+
+ while(len-- > 0)
+ if(*line++ == TAG_EMBED && len-- > 0)
+ switch(*line++){
+ case TAG_HANDLE :
+ if((n = *line++) >= --len){
+ *h = 0;
+ len -= n;
+ while(n--)
+ *h = (*h * 10) + (*line++ - '0');
+ }
+ break;
+
+ case TAG_HANDLEOFF :
+ case TAG_INVOFF :
+ *h = 0; /* assumption 23,342: inverse off ends tags */
+ break;
+
+ default :
+ break;
+ }
+}
+
+
+
+/*
+ * html_centered_flush_line - flush the centered "line" only
+ */
+void
+html_centered_flush_line(f)
+ FILTER_S *f;
+{
+ if(HD(f)->centered->line.used){
+ int i, j;
+
+ /* hide "word" from flush */
+ i = HD(f)->centered->word.used;
+ j = HD(f)->centered->word.width;
+ HD(f)->centered->word.used = 0;
+ HD(f)->centered->word.width = 0;
+ html_centered_flush(f);
+
+ HD(f)->centered->word.used = i;
+ HD(f)->centered->word.width = j;
+ }
+}
+
+
+/*
+ * html_write_indent - write indention mindful of display attributes
+ */
+void
+html_write_indent(f, indent)
+ FILTER_S *f;
+ int indent;
+{
+ if(! STRIP(f)){
+ if(BOLD_BIT(f)){
+ html_putc(f, TAG_EMBED);
+ html_putc(f, TAG_BOLDOFF);
+ }
+
+ if(ULINE_BIT(f)){
+ html_putc(f, TAG_EMBED);
+ html_putc(f, TAG_ULINEOFF);
+ }
+ }
+
+ f->n = indent;
+ while(indent-- > 0)
+ html_putc(f, ' '); /* indent as needed */
+
+ /*
+ * Resume any previous embedded state
+ */
+ if(! STRIP(f)){
+ if(BOLD_BIT(f)){
+ html_putc(f, TAG_EMBED);
+ html_putc(f, TAG_BOLDON);
+ }
+
+ if(ULINE_BIT(f)){
+ html_putc(f, TAG_EMBED);
+ html_putc(f, TAG_ULINEON);
+ }
+ }
+}
+
+
+/*
+ *
+ */
+void
+html_write_anchor(f, anchor)
+ FILTER_S *f;
+ int anchor;
+{
+ char buf[256];
+ int i;
+
+ html_putc(f, TAG_EMBED);
+ html_putc(f, TAG_HANDLE);
+ sprintf(buf, "%d", anchor);
+ html_putc(f, (int) strlen(buf));
+
+ for(i = 0; buf[i]; i++)
+ html_putc(f, buf[i]);
+}
+
+
+/*
+ * html_write_newline - write a newline mindful of display attributes
+ */
+void
+html_write_newline(f)
+ FILTER_S *f;
+{
+ if(! STRIP(f)){ /* First tie, off any embedded state */
+ if(HD(f)->in_anchor){
+ html_putc(f, TAG_EMBED);
+ html_putc(f, TAG_INVOFF);
+ }
+
+ if(BOLD_BIT(f)){
+ html_putc(f, TAG_EMBED);
+ html_putc(f, TAG_BOLDOFF);
+ }
+
+ if(ULINE_BIT(f)){
+ html_putc(f, TAG_EMBED);
+ html_putc(f, TAG_ULINEOFF);
+ }
+
+ if(HD(f)->color && HD(f)->color->fg[0] && HD(f)->color->bg[0]){
+ char *p;
+ int i;
+
+ p = color_embed(ps_global->VAR_NORM_FORE_COLOR,
+ ps_global->VAR_NORM_BACK_COLOR);
+ for(i = 0; i < 2 * (RGBLEN + 2); i++)
+ html_putc(f, p[i]);
+ }
+ }
+
+ html_write(f, "\015\012", 2);
+
+ if(! STRIP(f)){ /* First tie, off any embedded state */
+ if(BOLD_BIT(f)){
+ html_putc(f, TAG_EMBED);
+ html_putc(f, TAG_BOLDON);
+ }
+
+ if(ULINE_BIT(f)){
+ html_putc(f, TAG_EMBED);
+ html_putc(f, TAG_ULINEON);
+ }
+
+ if(HD(f)->color && HD(f)->color->fg[0] && HD(f)->color->bg[0]){
+ char *p;
+ int i;
+ COLOR_PAIR *tmp;
+
+ tmp = new_color_pair(HD(f)->color->fg, HD(f)->color->bg);
+ if(pico_is_good_colorpair(tmp)){
+ p = color_embed(HD(f)->color->fg, HD(f)->color->bg);
+ for(i = 0; i < 2 * (RGBLEN + 2); i++)
+ html_putc(f, p[i]);
+ }
+
+ HD(f)->color->fg[0] = '\0';
+ HD(f)->color->bg[0] = '\0';
+
+ if(tmp)
+ free_color_pair(&tmp);
+ }
+ }
+}
+
+
+/*
+ * html_write - write given int array to the next filter.
+ */
+void
+html_write(f, s, n)
+ FILTER_S *f;
+ char *s;
+ int n;
+{
+ GF_INIT(f, f->next);
+
+ while(n-- > 0){
+ /* keep track of attribute state? Not if last char! */
+ if(*s == TAG_EMBED && n-- > 0){
+ GF_PUTC(f->next, TAG_EMBED);
+ switch(*++s){
+ case TAG_BOLDON :
+ BOLD_BIT(f) = 1;
+ break;
+ case TAG_BOLDOFF :
+ BOLD_BIT(f) = 0;
+ break;
+ case TAG_ULINEON :
+ ULINE_BIT(f) = 1;
+ break;
+ case TAG_ULINEOFF :
+ ULINE_BIT(f) = 0;
+ break;
+ case TAG_HANDLEOFF :
+ HD(f)->in_anchor = 0;
+ GF_PUTC(f->next, TAG_INVOFF);
+ s++;
+ continue;
+ case TAG_HANDLE :
+ if(n-- > 0){
+ int i = *++s;
+
+ GF_PUTC(f->next, TAG_HANDLE);
+ if(i <= n){
+ n -= i;
+ GF_PUTC(f->next, i);
+ HD(f)->in_anchor = 0;
+ while(1){
+ HD(f)->in_anchor = (HD(f)->in_anchor * 10)
+ + (*++s - '0');
+ if(--i)
+ GF_PUTC(f->next, *s);
+ else
+ break;
+ }
+ }
+ }
+
+ break;
+ default:
+ break;
+ }
+ }
+
+ GF_PUTC(f->next, (*s++) & 0xff);
+ }
+
+ GF_IP_END(f->next); /* clean up next's input pointers */
+}
+
+
+/*
+ * html_putc -- actual work of writing to next filter.
+ * NOTE: Small opt not using full GF_END since our input
+ * pointers don't need adjusting.
+ */
+void
+html_putc(f, ch)
+ FILTER_S *f;
+ int ch;
+{
+ GF_INIT(f, f->next);
+ GF_PUTC(f->next, ch & 0xff);
+ GF_IP_END(f->next); /* clean up next's input pointers */
+}
+
+
+
+/*
+ * Only current option is to turn on embedded data stripping for text
+ * bound to a printer or composer.
+ */
+void *
+gf_html2plain_opt(base, columns, flags)
+ char *base;
+ int columns, flags;
+{
+ HTML_OPT_S *op;
+
+ op = (HTML_OPT_S *) fs_get(sizeof(HTML_OPT_S));
+
+ op->base = cpystr(base);
+ op->columns = columns;
+ op->strip = ((flags & GFHP_STRIPPED) == GFHP_STRIPPED);
+ op->handles = ((flags & GFHP_HANDLES) == GFHP_HANDLES);
+ op->handles_loc = ((flags & GFHP_LOCAL_HANDLES) == GFHP_LOCAL_HANDLES);
+ return((void *) op);
+}
+
+
+/* END OF HTML-TO-PLAIN text filter */
+
+/*
+ * ESCAPE CODE FILTER - remove unknown and possibly dangerous escape codes
+ * from the text stream.
+ */
+
+#define MAX_ESC_LEN 5
+
+/*
+ * the simple filter, removes unknown escape codes from the stream
+ */
+void
+gf_escape_filter(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ register char *p;
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register int state = f->f1;
+
+ while(GF_GETC(f, c)){
+
+ if(state){
+ if(c == '\033' || f->n == MAX_ESC_LEN){
+ f->line[f->n] = '\0';
+ f->n = 0L;
+ if(!match_escapes(f->line)){
+ GF_PUTC(f->next, '^');
+ GF_PUTC(f->next, '[');
+ }
+ else
+ GF_PUTC(f->next, '\033');
+
+ p = f->line;
+ while(*p)
+ GF_PUTC(f->next, *p++);
+
+ if(c == '\033')
+ continue;
+ else
+ state = 0; /* fall thru */
+ }
+ else{
+ f->line[f->n++] = c; /* collect */
+ continue;
+ }
+ }
+
+ if(c == '\033')
+ state = 1;
+ else
+ GF_PUTC(f->next, c);
+ }
+
+ f->f1 = state;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ if(f->f1){
+ if(!match_escapes(f->line)){
+ GF_PUTC(f->next, '^');
+ GF_PUTC(f->next, '[');
+ }
+ else
+ GF_PUTC(f->next, '\033');
+ }
+
+ for(p = f->line; f->n; f->n--, p++)
+ GF_PUTC(f->next, *p);
+
+ fs_give((void **)&(f->line)); /* free temp line buffer */
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset escape\n"));
+ f->f1 = 0;
+ f->n = 0L;
+ f->linep = f->line = (char *)fs_get((MAX_ESC_LEN + 1) * sizeof(char));
+ }
+}
+
+
+
+/*
+ * CONTROL CHARACTER FILTER - transmogrify control characters into their
+ * corresponding string representations (you know, ^blah and such)...
+ */
+
+/*
+ * the simple filter transforms unknown control characters in the stream
+ * into harmless strings.
+ */
+void
+gf_control_filter(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+
+ while(GF_GETC(f, c)){
+
+ if(iscntrl(c & 0x7f)
+ && !(isspace((unsigned char) c)
+ || c == '\016' || c == '\017' || c == '\033')){
+ GF_PUTC(f->next, '^');
+ GF_PUTC(f->next, c + '@');
+ }
+ else
+ GF_PUTC(f->next, c);
+ }
+
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+}
+
+
+
+/*
+ * LINEWRAP FILTER - insert CRLF's at end of nearest whitespace before
+ * specified line width
+ */
+
+
+typedef struct wrap_col_s {
+ unsigned bold:1;
+ unsigned uline:1;
+ unsigned inverse:1;
+ unsigned tags:1;
+ unsigned do_indent:1;
+ unsigned on_comma:1;
+ unsigned quoted:1;
+ COLOR_PAIR *color;
+ short embedded,
+ space_len;
+ char *lineendp,
+ space;
+ int anchor;
+ int wrap_col,
+ wrap_max,
+ indent;
+ char special[256];
+} WRAP_S;
+
+
+#define WRAP_COL(F) (((WRAP_S *)(F)->opt)->wrap_col)
+#define WRAP_MAX_COL(F) (((WRAP_S *)(F)->opt)->wrap_max)
+#define WRAP_INDENT(F) (((WRAP_S *)(F)->opt)->indent)
+#define WRAP_DO_IND(F) (((WRAP_S *)(F)->opt)->do_indent)
+#define WRAP_COMMA(F) (((WRAP_S *)(F)->opt)->on_comma)
+#define WRAP_QUOTED(F) (((WRAP_S *)(F)->opt)->quoted)
+#define WRAP_TAGS(F) (((WRAP_S *)(F)->opt)->tags)
+#define WRAP_BOLD(F) (((WRAP_S *)(F)->opt)->bold)
+#define WRAP_ULINE(F) (((WRAP_S *)(F)->opt)->uline)
+#define WRAP_INVERSE(F) (((WRAP_S *)(F)->opt)->inverse)
+#define WRAP_COLOR(F) (((WRAP_S *)(F)->opt)->color)
+#define WRAP_LASTC(F) (((WRAP_S *)(F)->opt)->lineendp)
+#define WRAP_EMBED(F) (((WRAP_S *)(F)->opt)->embedded)
+#define WRAP_ANCHOR(F) (((WRAP_S *)(F)->opt)->anchor)
+#define WRAP_SPACE(F) (((WRAP_S *)(F)->opt)->space)
+#define WRAP_SPACES(F) (WRAP_SPACE(F) ? (((WRAP_S *)(F)->opt)->space_len): 0)
+#define WRAP_SPC_LEN(F) (((WRAP_S *)(F)->opt)->space_len)
+#define WRAP_SPEC(S, C) (S)[C]
+
+#define WRAP_EOL(F) { \
+ if(WRAP_BOLD(F)){ \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_BOLDOFF); \
+ } \
+ if(WRAP_ULINE(F)){ \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_ULINEOFF); \
+ } \
+ if(WRAP_INVERSE(F) || WRAP_ANCHOR(F)){ \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_INVOFF); \
+ } \
+ if(WRAP_COLOR(F)){ \
+ char *p; \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_FGCOLOR); \
+ p = color_to_asciirgb(ps_global->VAR_NORM_FORE_COLOR);\
+ for(; *p; p++) \
+ GF_PUTC((F)->next, *p); \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_BGCOLOR); \
+ p = color_to_asciirgb(ps_global->VAR_NORM_BACK_COLOR);\
+ for(; *p; p++) \
+ GF_PUTC((F)->next, *p); \
+ } \
+ GF_PUTC((F)->next, '\015'); \
+ GF_PUTC((F)->next, '\012'); \
+ f->n = 0L; \
+ WRAP_SPACE(F) = 0; \
+ }
+
+#define WRAP_BOL(F) { \
+ if(WRAP_BOLD(F)){ \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_BOLDON); \
+ } \
+ if(WRAP_ULINE(F)){ \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_ULINEON); \
+ } \
+ if(WRAP_INVERSE(F)){ \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_INVON); \
+ } \
+ if(WRAP_COLOR(F)){ \
+ char *p; \
+ if(WRAP_COLOR(F)->fg[0]){ \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_FGCOLOR); \
+ p = color_to_asciirgb(WRAP_COLOR(F)->fg);\
+ for(; *p; p++) \
+ GF_PUTC((F)->next, *p); \
+ } \
+ if(WRAP_COLOR(F)->bg[0]){ \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_BGCOLOR); \
+ p = color_to_asciirgb(WRAP_COLOR(F)->bg);\
+ for(; *p; p++) \
+ GF_PUTC((F)->next, *p); \
+ } \
+ } \
+ if(WRAP_ANCHOR(F)){ \
+ char buf[64]; int i; \
+ GF_PUTC((F)->next, TAG_EMBED); \
+ GF_PUTC((F)->next, TAG_HANDLE); \
+ sprintf(buf, "%d", WRAP_ANCHOR(F)); \
+ GF_PUTC((F)->next, (int) strlen(buf)); \
+ for(i = 0; buf[i]; i++) \
+ GF_PUTC((F)->next, buf[i]); \
+ } \
+ }
+
+#define WRAP_PUTC(F,C) { \
+ if((F)->linep == WRAP_LASTC(F)){ \
+ size_t offset = (F)->linep - (F)->line; \
+ fs_resize((void **) &(F)->line, \
+ (2 * offset) * sizeof(char)); \
+ (F)->linep = &(F)->line[offset]; \
+ WRAP_LASTC(F) = &(F)->line[2*offset-1]; \
+ } \
+ *(F)->linep++ = (C); \
+ }
+
+#define WRAP_FLUSH(F) { \
+ register char *s = f->line; \
+ register int n; \
+ if(!f->n){ \
+ if(WRAP_DO_IND(F)){ \
+ if(f->n = (long)(n = WRAP_INDENT(F))) \
+ while(n-- > 0) \
+ GF_PUTC((F)->next, ' '); \
+ WRAP_DO_IND(F) = 0; \
+ } \
+ WRAP_BOL(F); \
+ } \
+ if(WRAP_SPACE(F)){ \
+ GF_PUTC(f->next, WRAP_SPACE(F)); \
+ WRAP_SPACE(F) = 0; \
+ f->n += WRAP_SPC_LEN(F); \
+ } \
+ for(n = f->linep - f->line; n > 0; n--){ \
+ if(*s == TAG_EMBED){ \
+ if(n-- > 0){ \
+ GF_PUTC(f->next, TAG_EMBED); \
+ switch(*++s){ \
+ case TAG_BOLDON : \
+ WRAP_BOLD(f) = 1; \
+ break; \
+ case TAG_BOLDOFF : \
+ WRAP_BOLD(f) = 0; \
+ break; \
+ case TAG_ULINEON : \
+ WRAP_ULINE(f) = 1; \
+ break; \
+ case TAG_ULINEOFF : \
+ WRAP_ULINE(f) = 0; \
+ break; \
+ case TAG_INVOFF : \
+ WRAP_ANCHOR(f) = 0; \
+ break; \
+ case TAG_HANDLE : \
+ if(n-- > 0){ \
+ int i = *++s; \
+ GF_PUTC(f->next, TAG_HANDLE); \
+ if(i <= n){ \
+ n -= i; \
+ GF_PUTC(f->next, i); \
+ WRAP_ANCHOR(f) = 0; \
+ while(1){ \
+ WRAP_ANCHOR(f) \
+ = (WRAP_ANCHOR(f) \
+ * 10) \
+ + (*++s-'0');\
+ if(--i) \
+ GF_PUTC(f->next,*s);\
+ else \
+ break; \
+ } \
+ } \
+ } \
+ break; \
+ case TAG_FGCOLOR : \
+ if(pico_usingcolor() \
+ && n >= RGBLEN){ \
+ if(!WRAP_COLOR(f)) \
+ WRAP_COLOR(f)=new_color_pair(NULL,NULL); \
+ strncpy(WRAP_COLOR(f)->fg, \
+ s+1, RGBLEN); \
+ WRAP_COLOR(f)->fg[RGBLEN]='\0'; \
+ i = RGBLEN; \
+ n -= i; \
+ while(i-- > 0) \
+ GF_PUTC(f->next, \
+ (*s++) & 0xff); \
+ } \
+ break; \
+ case TAG_BGCOLOR : \
+ if(pico_usingcolor() \
+ && n >= RGBLEN){ \
+ if(!WRAP_COLOR(f)) \
+ WRAP_COLOR(f)=new_color_pair(NULL,NULL); \
+ strncpy(WRAP_COLOR(f)->bg,\
+ s+1, RGBLEN); \
+ WRAP_COLOR(f)->bg[RGBLEN]='\0'; \
+ i = RGBLEN; \
+ n -= i; \
+ while(i-- > 0) \
+ GF_PUTC(f->next, \
+ (*s++) & 0xff); \
+ } \
+ break; \
+ default : \
+ break; \
+ } \
+ } \
+ } \
+ else \
+ f->n++; \
+ GF_PUTC(f->next, (*s++) & 0xff); \
+ } \
+ f->f2 = 0; \
+ f->linep = f->line; \
+ }
+
+
+
+
+/*
+ * the simple filter, breaks lines at end of white space nearest
+ * to global "gf_wrap_width" in length
+ */
+void
+gf_wrap(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ register long i;
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register int state = f->f1;
+ int wrap_threshold = WRAP_MAX_COL(f) - WRAP_INDENT(f);
+ char *special = ((WRAP_S *) f->opt)->special;
+
+ while(GF_GETC(f, c)){
+
+ switch(state){
+ case CCR :
+ state = DFL; /* CRLF or CR in text ? */
+ WRAP_FLUSH(f); /* it's a newline to us */
+ WRAP_EOL(f);
+ WRAP_BOL(f);
+ if(c == '\012') /* process anything but LF */
+ break;
+
+ case DFL :
+ if(WRAP_SPEC(special, c))
+ switch(c){
+ default :
+ if(WRAP_QUOTED(f))
+ break;
+
+ WRAP_FLUSH(f); /* flush buf */
+ switch(WRAP_SPACE(f) = c){ /* remember separator */
+ case ' ' :
+ WRAP_SPC_LEN(f) = 1;
+ break;
+
+ case TAB :
+ {
+ int i = (int) f->n;
+ while(++i & 0x07)
+ ;
+
+ WRAP_SPC_LEN(f) = i - (int) f->n;
+ }
+
+ break;
+
+ default : /* some control char? */
+ WRAP_SPC_LEN(f) = 2;
+ break;
+ }
+
+ continue;
+
+ case '\"' :
+ WRAP_QUOTED(f) = !WRAP_QUOTED(f);
+ break;
+
+ case '\015' : /* already has newline? */
+ state = CCR;
+ continue;
+
+ case '\012' : /* bare LF in text? */
+ WRAP_FLUSH(f); /* they must've meant */
+ WRAP_EOL(f); /* newline... */
+ WRAP_BOL(f);
+ continue;
+
+ case (unsigned char) TAG_EMBED :
+ WRAP_PUTC(f, TAG_EMBED);
+ state = TAG;
+ continue;
+
+ case ',' :
+ if(!WRAP_QUOTED(f)){
+ WRAP_PUTC(f, ',');
+ WRAP_FLUSH(f);
+ WRAP_SPACE(f) = 0;
+ continue;
+ }
+
+ break;
+ }
+
+ if(!f->n && (f->f2 >= wrap_threshold)){
+ char *ep, *space = NULL;
+ int cntr, new_f2;
+
+ /* Flush the buf'd line up to last WS */
+ if(WRAP_COMMA(f)){
+ char *p;
+
+ new_f2 = cntr = f->f2;
+ for(p = f->line; p < f->linep; p++){
+ /*
+ * Don't split at WS which is in the middle
+ * of a tag.
+ */
+ switch((unsigned char)*p){
+ case (unsigned char)TAG_EMBED:
+ if(++p >= f->linep)
+ break;
+
+ switch(*p){
+ case TAG_FGCOLOR:
+ case TAG_BGCOLOR:
+ p += RGBLEN;
+ break;
+
+ case TAG_HANDLE:
+ if(++p >= f->linep)
+ break;
+
+ p += (*p);
+ break;
+
+ default:
+ break;
+ }
+
+ continue;
+ break;
+
+ default:
+ break;
+ }
+
+ cntr--;
+
+ if(p < f->linep && isspace((unsigned char)*p)){
+ space = p;
+ new_f2 = cntr;
+ }
+ }
+
+ if(space){
+ ep = f->linep;
+ f->linep = space;
+ }
+ }
+
+ WRAP_FLUSH(f); /* write buffered */
+ WRAP_EOL(f); /* write end of line */
+ WRAP_DO_IND(f) = 1; /* indent next line */
+
+ if(space){
+ f->linep = f->line;
+ while(++space < ep)
+ *f->linep++ = *space;
+
+ f->f2 = new_f2;
+ }
+ }
+
+ WRAP_PUTC(f, c);
+
+ if(c == '\t' && WRAP_COMMA(f)){
+ int i = (int) f->n;
+ while(++i & 0x07)
+ ;
+
+ f->f2 += i - (int) f->n;
+ }
+ else
+ f->f2++;
+
+ if(f->n && (f->n + f->f2 + WRAP_SPACES(f) >= WRAP_COL(f))){
+ WRAP_EOL(f); /* write end of line */
+ WRAP_DO_IND(f) = 1; /* indent next line */
+ }
+
+ break;
+
+ case TAG :
+ WRAP_PUTC(f, c);
+ switch(c){
+ case TAG_HANDLE :
+ WRAP_EMBED(f) = -1;
+ state = HANDLE;
+ break;
+
+ case TAG_FGCOLOR :
+ case TAG_BGCOLOR :
+ WRAP_EMBED(f) = RGBLEN;
+ state = HDATA;
+ break;
+
+ default :
+ state = DFL;
+ break;
+ }
+
+ break;
+
+ case HANDLE :
+ WRAP_PUTC(f, c);
+ WRAP_EMBED(f) = c;
+ state = HDATA;
+ break;
+
+ case HDATA :
+ WRAP_PUTC(f, c);
+ if(!(WRAP_EMBED(f) -= 1))
+ state = DFL;
+
+ break;
+ }
+ }
+
+ f->f1 = state;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ WRAP_FLUSH(f);
+ if(WRAP_COLOR(f))
+ free_color_pair(&WRAP_COLOR(f));
+
+ fs_give((void **) &f->line); /* free temp line buffer */
+ fs_give((void **) &f->opt); /* free wrap widths struct */
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset wrap\n"));
+ f->f1 = DFL;
+ f->n = 0L; /* displayed length of line so far */
+ f->f2 = 0; /* displayed length of buffered chars */
+ if(! (WRAP_S *) f->opt)
+ f->opt = gf_wrap_filter_opt(75, 80, 0, 0);
+
+ while(WRAP_INDENT(f) >= WRAP_MAX_COL(f))
+ WRAP_INDENT(f) /= 2;
+
+ f->line = (char *) fs_get(WRAP_MAX_COL(f) * sizeof(char));
+ f->linep = f->line;
+ WRAP_LASTC(f) = &f->line[WRAP_MAX_COL(f) - 1];
+
+ for(i = 0; i < 256; i++)
+ ((WRAP_S *) f->opt)->special[i] = ((i == '\"' && WRAP_COMMA(f))
+ || i == '\015'
+ || i == '\012'
+ || (i == (unsigned char) TAG_EMBED
+ && WRAP_TAGS(f))
+ || (i == ',' && WRAP_COMMA(f)
+ && !WRAP_QUOTED(f))
+ || (!WRAP_COMMA(f)
+ && isspace((unsigned char) i)));
+ }
+}
+
+
+/*
+ * function called from the outside to set
+ * wrap filter's width option
+ */
+void *
+gf_wrap_filter_opt(width, width_max, indent, flags)
+ int width, width_max, indent, flags;
+{
+ WRAP_S *wrap;
+
+ wrap = (WRAP_S *) fs_get(sizeof(WRAP_S));
+ memset(wrap, 0, sizeof(WRAP_S));
+ wrap->wrap_col = width;
+ wrap->wrap_max = width_max;
+ wrap->indent = indent;
+ wrap->tags = (GFW_HANDLES & flags) == GFW_HANDLES;
+ wrap->on_comma = (GFW_ONCOMMA & flags) == GFW_ONCOMMA;
+ return((void *) wrap);
+}
+
+
+
+
+/*
+ * LINE PREFIX FILTER - insert given text at beginning of each
+ * line
+ */
+
+
+#define GF_PREFIX_WRITE(s) { \
+ register char *p; \
+ if(p = (s)) \
+ while(*p) \
+ GF_PUTC(f->next, *p++); \
+ }
+
+
+/*
+ * the simple filter, prepends each line with the requested prefix.
+ * if prefix is null, does nothing, and as with all filters, assumes
+ * NVT end of lines.
+ */
+void
+gf_prefix(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register int state = f->f1;
+ register int first = f->f2;
+
+ while(GF_GETC(f, c)){
+
+ if(first){ /* write initial prefix!! */
+ first = 0; /* but just once */
+ GF_PREFIX_WRITE((char *) f->opt);
+ }
+ else if(state){
+ state = 0;
+ GF_PUTC(f->next, '\015');
+ if(c == '\012'){
+ GF_PUTC(f->next, '\012');
+ GF_PREFIX_WRITE((char *) f->opt);
+ continue;
+ }
+ /* else fall thru to handle 'c' */
+ }
+
+ if(c == '\015') /* already has newline? */
+ state = 1;
+ else
+ GF_PUTC(f->next, c);
+ }
+
+ f->f1 = state;
+ f->f2 = first;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset prefix\n"));
+ f->f1 = 0;
+ f->f2 = 1; /* nothing written yet */
+ }
+}
+
+
+/*
+ * function called from the outside to set
+ * prefix filter's prefix string
+ */
+void *
+gf_prefix_opt(prefix)
+ char *prefix;
+{
+ return((void *) prefix);
+}
+
+
+/*
+ * LINE TEST FILTER - accumulate lines and offer each to the provided
+ * test function.
+ */
+
+typedef struct _linetest_s {
+ linetest_t f;
+ void *local;
+} LINETEST_S;
+
+
+/* accumulator growth increment */
+#define LINE_TEST_BLOCK 1024
+
+#define GF_LINE_TEST_EOB(f) \
+ ((f)->line + ((f)->f2 - 1))
+
+#define GF_LINE_TEST_ADD(f, c) \
+ { \
+ if(p >= eobuf){ \
+ f->f2 += LINE_TEST_BLOCK; \
+ fs_resize((void **)&f->line, \
+ (size_t) f->f2 * sizeof(char)); \
+ eobuf = GF_LINE_TEST_EOB(f); \
+ p = eobuf - LINE_TEST_BLOCK; \
+ } \
+ *p++ = c; \
+ }
+
+#define GF_LINE_TEST_TEST(F, D) \
+ { \
+ unsigned char c; \
+ register char *cp; \
+ register int l; \
+ LT_INS_S *ins = NULL, *insp; \
+ *p = '\0'; \
+ (D) = (*((LINETEST_S *) (F)->opt)->f)((F)->n++, \
+ (F)->line, &ins, \
+ ((LINETEST_S *) (F)->opt)->local); \
+ if((D) < 2){ \
+ for(insp = ins, cp = (F)->line; cp < p; ){ \
+ while(insp && cp == insp->where){ \
+ for(l = 0; l < insp->len; l++){ \
+ c = (unsigned char) insp->text[l];\
+ GF_PUTC((F)->next, c); \
+ } \
+ insp = insp->next; \
+ } \
+ GF_PUTC((F)->next, *cp); \
+ cp++; \
+ } \
+ while(insp){ \
+ for(l = 0; l < insp->len; l++){ \
+ c = (unsigned char) insp->text[l]; \
+ GF_PUTC((F)->next, c); \
+ } \
+ insp = insp->next; \
+ } \
+ gf_line_test_free_ins(&ins); \
+ } \
+ }
+
+
+
+/*
+ * this simple filter accumulates characters until a newline, offers it
+ * to the provided test function, and then passes it on. It assumes
+ * NVT EOLs.
+ */
+void
+gf_line_test(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ register char *p = f->linep;
+ register char *eobuf = GF_LINE_TEST_EOB(f);
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register int state = f->f1;
+
+ while(GF_GETC(f, c)){
+
+ if(state){
+ state = 0;
+ if(c == '\012'){
+ int done;
+
+ GF_LINE_TEST_TEST(f, done);
+
+ p = (f)->line;
+
+ if(done == 2) /* skip this line! */
+ continue;
+
+ GF_PUTC(f->next, '\015');
+ GF_PUTC(f->next, '\012');
+ /*
+ * if the line tester returns TRUE, it's
+ * telling us its seen enough and doesn't
+ * want to see any more. Remove ourself
+ * from the pipeline...
+ */
+ if(done){
+ if(gf_master == f){
+ gf_master = f->next;
+ }
+ else{
+ FILTER_S *fprev;
+
+ for(fprev = gf_master;
+ fprev && fprev->next != f;
+ fprev = fprev->next)
+ ;
+
+ if(fprev) /* wha??? */
+ fprev->next = f->next;
+ else
+ continue;
+ }
+
+ while(GF_GETC(f, c)) /* pass input */
+ GF_PUTC(f->next, c);
+
+ GF_FLUSH(f->next); /* and drain queue */
+ fs_give((void **)&f->line);
+ fs_give((void **)&f); /* wax our data */
+ return;
+ }
+ else
+ continue;
+ }
+ else /* add CR to buffer */
+ GF_LINE_TEST_ADD(f, '\015');
+ } /* fall thru to handle 'c' */
+
+ if(c == '\015') /* newline? */
+ state = 1;
+ else
+ GF_LINE_TEST_ADD(f, c);
+ }
+
+ f->f1 = state;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ int i;
+
+ GF_LINE_TEST_TEST(f, i); /* examine remaining data */
+ fs_give((void **) &f->line); /* free line buffer */
+ fs_give((void **) &f->opt); /* free test struct */
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset line_test\n"));
+ f->f1 = 0; /* state */
+ f->n = 0L; /* line number */
+ f->f2 = LINE_TEST_BLOCK; /* size of alloc'd line */
+ f->line = p = (char *) fs_get(f->f2 * sizeof(char));
+ }
+
+ f->linep = p;
+}
+
+
+/*
+ * function called from the outside to operate on accumulated line.
+ */
+void *
+gf_line_test_opt(test_f, local)
+ linetest_t test_f;
+ void *local;
+{
+ LINETEST_S *ltp;
+
+ ltp = (LINETEST_S *) fs_get(sizeof(LINETEST_S));
+ memset(ltp, 0, sizeof(LINETEST_S));
+ ltp->f = test_f;
+ ltp->local = local;
+ return((void *) ltp);
+}
+
+
+
+LT_INS_S **
+gf_line_test_new_ins(ins, p, s, n)
+ LT_INS_S **ins;
+ char *p, *s;
+ int n;
+{
+ *ins = (LT_INS_S *) fs_get(sizeof(LT_INS_S));
+ if((*ins)->len = n)
+ strncpy((*ins)->text = (char *) fs_get(n * sizeof(char)), s, n);
+
+ (*ins)->where = p;
+ (*ins)->next = NULL;
+ return(&(*ins)->next);
+}
+
+
+void
+gf_line_test_free_ins(ins)
+ LT_INS_S **ins;
+{
+ if(ins && *ins){
+ if((*ins)->next)
+ gf_line_test_free_ins(&(*ins)->next);
+
+ if((*ins)->text)
+ fs_give((void **) &(*ins)->text);
+
+ fs_give((void **) ins);
+ }
+}
+
+
+/*
+ * Network virtual terminal to local newline convention filter
+ */
+void
+gf_nvtnl_local(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+ register int state = f->f1;
+
+ while(GF_GETC(f, c)){
+ if(state){
+ state = 0;
+ if(c == '\012'){
+ GF_PUTC(f->next, '\012');
+ continue;
+ }
+ else
+ GF_PUTC(f->next, '\015');
+ /* fall thru to deal with 'c' */
+ }
+
+ if(c == '\015')
+ state = 1;
+ else
+ GF_PUTC(f->next, c);
+ }
+
+ f->f1 = state;
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset nvtnl_local\n"));
+ f->f1 = 0;
+ }
+}
+
+
+/*
+ * local to network newline convention filter
+ */
+void
+gf_local_nvtnl(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+
+ while(GF_GETC(f, c)){
+ if(c == '\012'){
+ GF_PUTC(f->next, '\015');
+ GF_PUTC(f->next, '\012');
+ }
+ else
+ GF_PUTC(f->next, c);
+ }
+
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset local_nvtnl\n"));
+ /* no op */
+ }
+
+}
+
+#if defined(DOS) || defined(OS2)
+/*
+ * DOS CodePage to Character Set Translation (and back) filters
+ */
+
+/*
+ * Charset and CodePage mapping table pointer and length
+ */
+static unsigned char *gf_xlate_tab;
+static unsigned gf_xlate_tab_len;
+
+/*
+ * the simple filter takes DOS Code Page values and maps them into
+ * the indicated external CharSet mapping or vice-versa.
+ */
+void
+gf_translate(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+
+ while(GF_GETC(f, c))
+ if((unsigned long) c < ((SIZEDTEXT *) (f->opt))->size)
+ GF_PUTC(f->next, (int) ((SIZEDTEXT *) (f->opt))->data[c]);
+
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ fs_give((void **) &f->opt); /* free up table description */
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset translate\n"));
+ }
+}
+
+
+/*
+ * function called from the outside to set
+ * prefix filter's prefix string
+ */
+void *
+gf_translate_opt(xlatetab, xlatetablen)
+ unsigned char *xlatetab;
+ unsigned xlatetablen;
+{
+ SIZEDTEXT *xlate_tab = (SIZEDTEXT *) fs_get(sizeof(SIZEDTEXT));
+
+ xlate_tab->data = xlatetab;
+ xlate_tab->size = (unsigned long) xlatetablen;
+
+ return((void *) xlate_tab);
+}
+#endif
+
+/*
+ * display something indicating we're chewing on something
+ *
+ * NOTE : IF ANY OTHER FILTERS WRITE THE DISPLAY, THIS WILL NEED FIXING
+ */
+void
+gf_busy(f, flg)
+ FILTER_S *f;
+ int flg;
+{
+ static short x = 0;
+ GF_INIT(f, f->next);
+
+ if(flg == GF_DATA){
+ register unsigned char c;
+
+ while(GF_GETC(f, c)){
+
+ if(!((++(f->f1))&0x7ff)){ /* ding the bell every 2K chars */
+ MoveCursor(0, 1);
+ f->f1 = 0;
+ if((++x)&0x04) x = 0;
+ Writechar((x == 0) ? '/' : /* CHEATING! */
+ (x == 1) ? '-' :
+ (x == 2) ? '\\' : '|', 0);
+ }
+
+ GF_PUTC(f->next, c);
+ }
+
+ GF_END(f, f->next);
+ }
+ else if(flg == GF_EOD){
+ MoveCursor(0, 1);
+ Writechar(' ', 0);
+ EndInverse();
+ GF_FLUSH(f->next);
+ (*f->next->f)(f->next, GF_EOD);
+ }
+ else if(flg == GF_RESET){
+ dprint(9, (debugfile, "-- gf_reset busy\n"));
+ f->f1 = 0;
+ x = 0;
+ StartInverse();
+ }
+
+ fflush(stdout);
+}
diff --git a/net-mail/pine-maildir/files/os.c b/net-mail/pine-maildir/files/os.c
new file mode 100644
index 000000000000..2fd967904207
--- /dev/null
+++ b/net-mail/pine-maildir/files/os.c
@@ -0,0 +1,5673 @@
+/*----------------------------------------------------------------------
+
+ T H E P I N E M A I L S Y S T E M
+
+ Laurence Lundblade and Mike Seibel
+ Networks and Distributed Computing
+ Computing and Communications
+ University of Washington
+ Administration Builiding, AG-44
+ Seattle, Washington, 98195, USA
+ Internet: lgl@CAC.Washington.EDU
+ mikes@CAC.Washington.EDU
+
+ Please address all bugs and comments to "pine-bugs@cac.washington.edu"
+
+
+ Pine and Pico are registered trademarks of the University of Washington.
+ No commercial use of these trademarks may be made without prior written
+ permission of the University of Washington.
+
+ Pine, Pico, and Pilot software and its included text are Copyright
+ 1989-1998 by the University of Washington.
+
+ The full text of our legal notices is contained in the file called
+ CPYRIGHT, included with this distribution.
+
+
+ Pine is in part based on The Elm Mail System:
+ ***********************************************************************
+ * The Elm Mail System - Revision: 2.13 *
+ * *
+ * Copyright (c) 1986, 1987 Dave Taylor *
+ * Copyright (c) 1988, 1989 USENET Community Trust *
+ ***********************************************************************
+
+
+ ----------------------------------------------------------------------*/
+
+/*======================================================================
+
+ This contains most of Pine's interface to the local operating system
+and hardware. Hopefully this file, os-xxx.h and makefile.xxx are the
+only ones that have to be modified for most ports. Signals.c, ttyin.c,
+and ttyout.c also have some dependencies. See the doc/tech-notes for
+notes on porting Pine to other platforms. Here is a list of the functions
+required for an implementation:
+
+
+ File System Access
+ can_access -- See if a file can be accessed
+ name_file_size -- Return the number of bytes in the file (by name)
+ fp_file_size -- Return the number of bytes in the file (by FILE *)
+ name_file_mtime -- Return the mtime of a file (by name)
+ fp_file_mtime -- Return the mtime of a file (by FILE *)
+ file_attrib_copy -- Copy attributes of one file to another.
+ is_writable_dir -- Check to see if directory exists and is writable
+ create_mail_dir -- Make a directory
+ rename_file -- change name of a file
+ build_path -- Put together a file system path
+ last_cmpnt -- Returns pointer to last component of path
+ expand_foldername -- Expand a folder name to full path
+ fnexpand -- Do filename exansion for csh style "~"
+ filter_filename -- Make sure file name hasn't got weird chars
+ cntxt_allowed -- Check whether a pathname is allowed for read/write
+ disk_quota -- Check the user's disk quota
+ read_file -- Read whole file into memory (for small files)
+ create_tmpfile -- Just like ANSI C tmpfile function
+ temp_nam -- Almost like common tempnam function
+ fget_pos,fset_pos -- Just like ANSI C fgetpos, fsetpos functions
+
+ Abort
+ coredump -- Abort running Pine dumping core if possible
+
+ System Name and Domain
+ hostname -- Figure out the system's host name, only
+ used internally in this file.
+ getdomainnames -- Figure out the system's domain name
+ canonical_name -- Returns canonical form of host name
+
+ Job Control
+ have_job_control -- Returns 1 if job control exists
+ stop_process -- What to do to stop process when it's time to stop
+ (only used if have_job_control returns 1)
+
+ System Error Messages (in case given one is a problem)
+ error_description -- Returns string describing error
+
+ System Password and Accounts
+ gcos_name -- Parses full name from system, only used
+ locally in this file so if you don't use it you
+ don't need it
+ get_user_info -- Finds in login name, full name, and homedir
+ local_name_lookup -- Get full name of user on system
+ change_passwd -- Calls system password changer
+
+ MIME utilities
+ mime_can_display -- Can we display this type/subtype?
+ exec_mailcap_cmd -- Run the mailcap command to view a type/subtype.
+ exec_mailcap_test_cmd -- Run mailcap test= test command.
+
+ Other stuff
+ srandom -- Dummy srandom if you don't have this function
+ init_debug
+ do_debug
+ save_debug_on_crash
+
+ ====*/
+
+
+#include "headers.h"
+
+
+
+/*----------------------------------------------------------------------
+ Check if we can access a file in a given way
+
+ Args: file -- The file to check
+ mode -- The mode ala the access() system call, see ACCESS_EXISTS
+ and friends in pine.h.
+
+ Result: returns 0 if the user can access the file according to the mode,
+ -1 if he can't (and errno is set).
+ ----*/
+int
+can_access(file, mode)
+ char *file;
+ int mode;
+{
+ return(access(file, mode));
+}
+
+
+/*----------------------------------------------------------------------
+ Check if we can access a file in a given way in the given path
+
+ Args: path -- The path to look for "file" in
+ file -- The file to check
+ mode -- The mode ala the access() system call, see ACCESS_EXISTS
+ and friends in pine.h.
+
+ Result: returns 0 if the user can access the file according to the mode,
+ -1 if he can't (and errno is set).
+ ----*/
+can_access_in_path(path, file, mode)
+ char *path, *file;
+ int mode;
+{
+ char tmp[MAXPATH], *path_copy, *p, *t;
+ int rv = -1;
+
+ if(!path || !*path || *file == '/'){
+ rv = access(file, mode);
+ }
+ else if(*file == '~'){
+ strcpy(tmp, file);
+ rv = fnexpand(tmp, sizeof(tmp)) ? access(tmp, mode) : -1;
+ }
+ else{
+ for(p = path_copy = cpystr(path); p && *p; p = t){
+ if(t = strindex(p, ':'))
+ *t++ = '\0';
+
+ sprintf(tmp, "%s/%s", p, file);
+ if((rv = access(tmp, mode)) == 0)
+ break;
+ }
+
+ fs_give((void **)&path_copy);
+ }
+
+ return(rv);
+}
+
+/*----------------------------------------------------------------------
+ Return the number of bytes in given file
+
+ Args: file -- file name
+
+ Result: the number of bytes in the file is returned or
+ -1 on error, in which case errno is valid
+ ----*/
+long
+name_file_size(file)
+ char *file;
+{
+ struct stat buffer;
+
+ if(stat(file, &buffer) != 0)
+ return(-1L);
+
+ return((long)buffer.st_size);
+}
+
+
+/*----------------------------------------------------------------------
+ Return the number of bytes in given file
+
+ Args: fp -- FILE * for open file
+
+ Result: the number of bytes in the file is returned or
+ -1 on error, in which case errno is valid
+ ----*/
+long
+fp_file_size(fp)
+ FILE *fp;
+{
+ struct stat buffer;
+
+ if(fstat(fileno(fp), &buffer) != 0)
+ return(-1L);
+
+ return((long)buffer.st_size);
+}
+
+
+/*----------------------------------------------------------------------
+ Return the modification time of given file
+
+ Args: file -- file name
+
+ Result: the time of last modification (mtime) of the file is returned or
+ -1 on error, in which case errno is valid
+ ----*/
+time_t
+name_file_mtime(file)
+ char *file;
+{
+ struct stat buffer;
+
+ if(stat(file, &buffer) != 0)
+ return((time_t)(-1));
+
+ return(buffer.st_mtime);
+}
+
+
+/*----------------------------------------------------------------------
+ Return the modification time of given file
+
+ Args: fp -- FILE * for open file
+
+ Result: the time of last modification (mtime) of the file is returned or
+ -1 on error, in which case errno is valid
+ ----*/
+time_t
+fp_file_mtime(fp)
+ FILE *fp;
+{
+ struct stat buffer;
+
+ if(fstat(fileno(fp), &buffer) != 0)
+ return((time_t)(-1));
+
+ return(buffer.st_mtime);
+}
+
+
+/*----------------------------------------------------------------------
+ Copy the mode, owner, and group of sourcefile to targetfile.
+
+ Args: targetfile --
+ sourcefile --
+
+ We don't bother keeping track of success or failure because we don't care.
+ ----*/
+void
+file_attrib_copy(targetfile, sourcefile)
+ char *targetfile;
+ char *sourcefile;
+{
+ struct stat buffer;
+
+ if(stat(sourcefile, &buffer) == 0){
+ chmod(targetfile, buffer.st_mode);
+#if !defined(DOS) && !defined(OS2)
+ chown(targetfile, buffer.st_uid, buffer.st_gid);
+#endif
+ }
+}
+
+
+
+/*----------------------------------------------------------------------
+ Check to see if a directory exists and is writable by us
+
+ Args: dir -- directory name
+
+ Result: returns 0 if it exists and is writable
+ 1 if it is a directory, but is not writable
+ 2 if it is not a directory
+ 3 it doesn't exist.
+ ----*/
+is_writable_dir(dir)
+ char *dir;
+{
+ struct stat sb;
+
+ if(stat(dir, &sb) < 0)
+ /*--- It doesn't exist ---*/
+ return(3);
+
+ if(!(sb.st_mode & S_IFDIR))
+ /*---- it's not a directory ---*/
+ return(2);
+
+ if(can_access(dir, 07))
+ return(1);
+ else
+ return(0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Create the mail subdirectory.
+
+ Args: dir -- Name of the directory to create
+
+ Result: Directory is created. Returns 0 on success, else -1 on error
+ and errno is valid.
+ ----*/
+create_mail_dir(dir)
+ char *dir;
+{
+ if(mkdir(dir, 0700) < 0)
+ return(-1);
+
+ (void)chmod(dir, 0700);
+ /* Some systems need this, on others we don't care if it fails */
+ (void)chown(dir, getuid(), getgid());
+ return(0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Rename a file
+
+ Args: tmpfname -- Old name of file
+ fname -- New name of file
+
+ Result: File is renamed. Returns 0 on success, else -1 on error
+ and errno is valid.
+ ----*/
+rename_file(tmpfname, fname)
+ char *tmpfname, *fname;
+{
+ return(rename(tmpfname, fname));
+}
+
+
+
+/*----------------------------------------------------------------------
+ Paste together two pieces of a file name path
+
+ Args: pathbuf -- Put the result here
+ first_part -- of path name
+ second_part -- of path name
+
+ Result: New path is in pathbuf. No check is made for overflow. Note that
+ we don't have to check for /'s at end of first_part and beginning
+ of second_part since multiple slashes are ok.
+
+BUGS: This is a first stab at dealing with fs naming dependencies, and others
+still exist.
+ ----*/
+void
+build_path(pathbuf, first_part, second_part)
+ char *pathbuf, *first_part, *second_part;
+{
+ if(!first_part)
+ strcpy(pathbuf, second_part);
+ else
+ sprintf(pathbuf, "%s%s%s", first_part,
+ (*first_part && first_part[strlen(first_part)-1] != '/')
+ ? "/" : "",
+ second_part);
+}
+
+
+/*----------------------------------------------------------------------
+ Test to see if the given file path is absolute
+
+ Args: file -- file path to test
+
+ Result: TRUE if absolute, FALSE otw
+
+ ----*/
+int
+is_absolute_path(path)
+ char *path;
+{
+ return(path && (*path == '/' || *path == '~'));
+}
+
+
+
+/*----------------------------------------------------------------------
+ Return pointer to last component of pathname.
+
+ Args: filename -- The pathname.
+
+ Result: Returned pointer points to last component in the input argument.
+ ----*/
+char *
+last_cmpnt(filename)
+ char *filename;
+{
+ register char *p = NULL, *q = filename;
+
+ while(q = strchr(q, '/'))
+ if(*++q)
+ p = q;
+
+ return(p);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Expand a folder name, taking account of the folders_dir and `~'.
+
+ Args: filename -- The name of the file that is the folder
+
+ Result: The folder name is expanded in place.
+ Returns 0 and queues status message if unsuccessful.
+ Input string is overwritten with expanded name.
+ Returns 1 if successful.
+
+BUG should limit length to MAXPATH
+ ----*/
+int
+expand_foldername(filename)
+ char *filename;
+{
+ char temp_filename[MAXPATH+1];
+
+ dprint(5, (debugfile, "=== expand_foldername called (%s) ===\n",filename));
+
+ /*
+ * We used to check for valid filename chars here if "filename"
+ * didn't refer to a remote mailbox. This has been rethought
+ */
+
+ strcpy(temp_filename, filename);
+ if(strucmp(temp_filename, "inbox") == 0) {
+ strcpy(filename, ps_global->VAR_INBOX_PATH == NULL ? "inbox" :
+ ps_global->VAR_INBOX_PATH);
+ } else if(temp_filename[0] == '{') {
+ strcpy(filename, temp_filename);
+ } else if(ps_global->restricted
+ && (strindex("./~", temp_filename[0]) != NULL
+ || srchstr(temp_filename,"/../"))){
+ q_status_message(SM_ORDER, 0, 3, "Can only open local folders");
+ return(0);
+ } else if(temp_filename[0] == '*') {
+ strcpy(filename, temp_filename);
+ } else if(ps_global->VAR_OPER_DIR && srchstr(temp_filename,"..")){
+ q_status_message(SM_ORDER, 0, 3,
+ "\"..\" not allowed in folder name");
+ return(0);
+ } else if (temp_filename[0] == '~'){
+ if(fnexpand(temp_filename, sizeof(temp_filename)) == NULL) {
+ char *p = strindex(temp_filename, '/');
+ if(p != NULL)
+ *p = '\0';
+ q_status_message1(SM_ORDER, 3, 3,
+ "Error expanding folder name: \"%s\" unknown user",
+ temp_filename);
+ return(0);
+ }
+ strcpy(filename, temp_filename);
+ } else if(temp_filename[0] == '/') {
+ strcpy(filename, temp_filename);
+ } else if(F_ON(F_USE_CURRENT_DIR, ps_global)){
+ strcpy(filename, temp_filename);
+ } else if(ps_global->VAR_OPER_DIR){
+ build_path(filename, ps_global->VAR_OPER_DIR, temp_filename);
+ } else {
+ build_path(filename, ps_global->home_dir, temp_filename);
+ }
+ dprint(5, (debugfile, "returning \"%s\"\n", filename));
+ return(1);
+}
+
+
+
+struct passwd *getpwnam();
+
+/*----------------------------------------------------------------------
+ Expand the ~ in a file ala the csh (as home directory)
+
+ Args: buf -- The filename to expand (nothing happens unless begins with ~)
+ len -- The length of the buffer passed in (expansion is in place)
+
+ Result: Expanded string is returned using same storage as passed in.
+ If expansion fails, NULL is returned
+ ----*/
+char *
+fnexpand(buf, len)
+ char *buf;
+ int len;
+{
+ struct passwd *pw;
+ register char *x,*y;
+ char name[20];
+
+ if(*buf == '~') {
+ for(x = buf+1, y = name; *x != '/' && *x != '\0'; *y++ = *x++);
+ *y = '\0';
+ if(x == buf + 1)
+ pw = getpwuid(getuid());
+ else
+ pw = getpwnam(name);
+ if(pw == NULL)
+ return((char *)NULL);
+ if(strlen(pw->pw_dir) + strlen(buf) > len) {
+ return((char *)NULL);
+ }
+ rplstr(buf, x - buf, pw->pw_dir);
+ }
+ return(len ? buf : (char *)NULL);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Filter file names for strange characters
+
+ Args: file -- the file name to check
+
+ Result: Returns NULL if file name is OK
+ Returns formatted error message if it is not
+ ----*/
+char *
+filter_filename(file, fatal)
+ char *file;
+ int *fatal;
+{
+#ifdef ALLOW_WEIRD
+ static char illegal[] = {'\177', '\0'};
+#else
+ static char illegal[] = {'"', '#', '$', '%', '&', '\'','(', ')','*',
+ ',', ':', ';', '<', '=', '>', '?', '[', ']',
+ '\\', '^', '|', '\177', '\0'};
+#endif
+ static char error[100];
+ char ill_file[MAXPATH+1], *ill_char, *ptr, e2[10];
+ int i;
+
+ for(ptr = file; *ptr == ' '; ptr++) ; /* leading spaces gone */
+
+ while(*ptr && (unsigned char)(*ptr) >= ' ' && strindex(illegal, *ptr) == 0)
+ ptr++;
+
+ *fatal = TRUE;
+ if(*ptr != '\0') {
+ if(*ptr == '\n') {
+ ill_char = "<newline>";
+ } else if(*ptr == '\r') {
+ ill_char = "<carriage return>";
+ } else if(*ptr == '\t') {
+ ill_char = "<tab>";
+ *fatal = FALSE; /* just whitespace */
+ } else if(*ptr < ' ') {
+ sprintf(e2, "control-%c", *ptr + '@');
+ ill_char = e2;
+ } else if (*ptr == '\177') {
+ ill_char = "<del>";
+ } else {
+ e2[0] = *ptr;
+ e2[1] = '\0';
+ ill_char = e2;
+ *fatal = FALSE; /* less offensive? */
+ }
+ if(!*fatal){
+ strcpy(error, ill_char);
+ }
+ else if(ptr != file) {
+ strncpy(ill_file, file, ptr - file);
+ ill_file[ptr - file] = '\0';
+ sprintf(error,
+ "Character \"%s\" after \"%s\" not allowed in file name",
+ ill_char, ill_file);
+ } else {
+ sprintf(error,
+ "First character, \"%s\", not allowed in file name",
+ ill_char);
+ }
+
+ return(error);
+ }
+
+ if((i=is_writable_dir(file)) == 0 || i == 1){
+ sprintf(error, "\"%s\" is a directory", file);
+ return(error);
+ }
+
+ if(ps_global->restricted || ps_global->VAR_OPER_DIR){
+ for(ptr = file; *ptr == ' '; ptr++) ; /* leading spaces gone */
+
+ if((ptr[0] == '.' && ptr[1] == '.') || srchstr(ptr, "/../")){
+ sprintf(error, "\"..\" not allowed in filename");
+ return(error);
+ }
+ }
+
+ return((char *)NULL);
+}
+
+
+/*----------------------------------------------------------------------
+ Check to see if user is allowed to read or write this folder.
+
+ Args: s -- the name to check
+
+ Result: Returns 1 if OK
+ Returns 0 and posts an error message if access is denied
+ ----*/
+int
+cntxt_allowed(s)
+ char *s;
+{
+ struct variable *vars = ps_global->vars;
+ int retval = 1;
+ MAILSTREAM stream; /* fake stream for error message in mm_notify */
+
+ if(ps_global->restricted
+ && (strindex("./~", s[0]) || srchstr(s, "/../"))){
+ stream.mailbox = s;
+ mm_notify(&stream, "Restricted mode doesn't allow operation", WARN);
+ retval = 0;
+ }
+ else if(VAR_OPER_DIR
+ && s[0] != '{' && !(s[0] == '*' && s[1] == '{')
+ && strucmp(s,ps_global->inbox_name) != 0
+ && strcmp(s, ps_global->VAR_INBOX_PATH) != 0){
+ char *p, *free_this = NULL;
+
+ p = s;
+ if(strindex(s, '~')){
+ p = strindex(s, '~');
+ free_this = (char *)fs_get(strlen(p) + 200);
+ strcpy(free_this, p);
+ fnexpand(free_this, strlen(p)+200);
+ p = free_this;
+ }
+ else if(p[0] != '/'){ /* add home dir to relative paths */
+ free_this = p = (char *)fs_get(strlen(s)
+ + strlen(ps_global->home_dir) + 2);
+ build_path(p, ps_global->home_dir, s);
+ }
+
+ if(!in_dir(VAR_OPER_DIR, p)){
+ char err[200];
+
+ sprintf(err, "Not allowed outside of %s", VAR_OPER_DIR);
+ stream.mailbox = p;
+ mm_notify(&stream, err, WARN);
+ retval = 0;
+ }
+ else if(srchstr(p, "/../")){ /* check for .. in path */
+ stream.mailbox = p;
+ mm_notify(&stream, "\"..\" not allowed in name", WARN);
+ retval = 0;
+ }
+
+ if(free_this)
+ fs_give((void **)&free_this);
+ }
+
+ return retval;
+}
+
+
+
+#if defined(USE_QUOTAS)
+
+/*----------------------------------------------------------------------
+ This system doesn't have disk quotas.
+ Return space left in disk quota on file system which given path is in.
+
+ Args: path - Path name of file or directory on file system of concern
+ over - pointer to flag that is set if the user is over quota
+
+ Returns: If *over = 0, the number of bytes free in disk quota as per
+ the soft limit.
+ If *over = 1, the number of bytes *over* quota.
+ -1 is returned on an error looking up quota
+ 0 is returned if there is no quota
+
+BUG: If there's more than 2.1Gb free this function will break
+ ----*/
+long
+disk_quota(path, over)
+ char *path;
+ int *over;
+{
+ return(0L);
+}
+#endif /* USE_QUOTAS */
+
+
+
+/*----------------------------------------------------------------------
+ Read whole file into memory
+
+ Args: filename -- path name of file to read
+
+ Result: Returns pointer to malloced memory with the contents of the file
+ or NULL
+
+This won't work very well if the file has NULLs in it and is mostly
+intended for fairly small text files.
+ ----*/
+char *
+read_file(filename)
+ char *filename;
+{
+ int fd;
+ struct stat statbuf;
+ char *buf;
+ int nb;
+
+ fd = open(filename, O_RDONLY);
+ if(fd < 0)
+ return((char *)NULL);
+
+ fstat(fd, &statbuf);
+
+ buf = fs_get((size_t)statbuf.st_size + 1);
+
+ /*
+ * On some systems might have to loop here, if one read isn't guaranteed
+ * to get the whole thing.
+ */
+ if((nb = read(fd, buf, (int)statbuf.st_size)) < 0)
+ fs_give((void **)&buf); /* NULL's buf */
+ else
+ buf[nb] = '\0';
+
+ close(fd);
+ return(buf);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Create a temporary file, the name of which we don't care about
+and that goes away when it is closed. Just like ANSI C tmpfile.
+ ----*/
+FILE *
+create_tmpfile()
+{
+ return(tmpfile());
+}
+
+
+
+/*----------------------------------------------------------------------
+ Abort with a core dump
+ ----*/
+void
+coredump()
+{
+ abort();
+}
+
+
+
+/*----------------------------------------------------------------------
+ Call system gethostname
+
+ Args: hostname -- buffer to return host name in
+ size -- Size of buffer hostname is to be returned in
+
+ Result: returns 0 if the hostname is correctly set,
+ -1 if not (and errno is set).
+ ----*/
+hostname(hostname,size)
+ char *hostname;
+ int size;
+{
+ return(gethostname(hostname, size));
+}
+
+
+
+/*----------------------------------------------------------------------
+ Get the current host and domain names
+
+ Args: hostname -- buffer to return the hostname in
+ hsize -- size of buffer above
+ domainname -- buffer to return domain name in
+ dsize -- size of buffer above
+
+ Result: The system host and domain names are returned. If the full host
+ name is akbar.cac.washington.edu then the domainname is
+ cac.washington.edu.
+
+On Internet connected hosts this look up uses /etc/hosts and DNS to
+figure all this out. On other less well connected machines some other
+file may be read. If there is no notion of a domain name the domain
+name may be left blank. On a PC where there really isn't a host name
+this should return blank strings. The .pinerc will take care of
+configuring the domain names. That is, this should only return the
+native system's idea of what the names are if the system has such
+a concept.
+ ----*/
+void
+getdomainnames(hostname, hsize, domainname, dsize)
+ char *hostname, *domainname;
+ int hsize, dsize;
+{
+ char *dn, hname[MAX_ADDRESS+1];
+ struct hostent *he;
+ char **alias;
+ char *maybe = NULL;
+
+ gethostname(hname, MAX_ADDRESS);
+ he = gethostbyname(hname);
+ hostname[0] = '\0';
+
+ if(he == NULL)
+ strncpy(hostname, hname, hsize-1);
+ else{
+ /*
+ * If no dot in hostname it may be the case that there
+ * is an alias which is really the fully-qualified
+ * hostname. This could happen if the administrator has
+ * (incorrectly) put the unqualified name first in the
+ * hosts file, for example. The problem with looking for
+ * an alias with a dot is that now we're guessing, since
+ * the aliases aren't supposed to be the official hostname.
+ * We'll compromise and only use an alias if the primary
+ * name has no dot and exactly one of the aliases has a
+ * dot.
+ */
+ strncpy(hostname, he->h_name, hsize-1);
+ if(strindex(hostname, '.') == NULL){ /* no dot in hostname */
+ for(alias = he->h_aliases; *alias; alias++){
+ if(strindex(*alias, '.') != NULL){ /* found one */
+ if(maybe){ /* oops, this is the second one */
+ maybe = NULL;
+ break;
+ }
+ else
+ maybe = *alias;
+ }
+ }
+
+ if(maybe)
+ strncpy(hostname, maybe, hsize-1);
+ }
+ }
+
+ hostname[hsize-1] = '\0';
+
+
+ if((dn = strindex(hostname, '.')) != NULL)
+ strncpy(domainname, dn+1, dsize-1);
+ else
+ strncpy(domainname, hostname, dsize-1);
+
+ domainname[dsize-1] = '\0';
+}
+
+
+
+/*----------------------------------------------------------------------
+ Return canonical form of host name ala c-client (UNIX version).
+
+ Args: host -- The host name
+
+ Result: Canonical form, or input argument (worst case)
+ ----*/
+char *
+canonical_name(host)
+ char *host;
+{
+ struct hostent *hent;
+ char hostname[MAILTMPLEN];
+ char tmp[MAILTMPLEN];
+ extern char *lcase();
+ /* domain literal is easy */
+ if (host[0] == '[' && host[(strlen (host))-1] == ']')
+ return host;
+
+ strcpy (hostname,host); /* UNIX requires lowercase */
+ /* lookup name, return canonical form */
+ return (hent = gethostbyname (lcase (strcpy (tmp,host)))) ?
+ hent->h_name : host;
+}
+
+
+
+/*----------------------------------------------------------------------
+ This routine returns 1 if job control is available. Note, thiis
+ could be some type of fake job control. It doesn't have to be
+ real BSD-style job control.
+ ----*/
+have_job_control()
+{
+ return 1;
+}
+
+
+/*----------------------------------------------------------------------
+ If we don't have job control, this routine is never called.
+ ----*/
+stop_process()
+{
+ SigType (*save_usr2) SIG_PROTO((int));
+
+ /*
+ * Since we can't respond to KOD while stopped, the process that sent
+ * the KOD is going to go read-only. Therefore, we can safely ignore
+ * any KODs that come in before we are ready to respond...
+ */
+ save_usr2 = signal(SIGUSR2, SIG_IGN);
+ kill(0, SIGSTOP);
+ (void)signal(SIGUSR2, save_usr2);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Return string describing the error
+
+ Args: errnumber -- The system error number (errno)
+
+ Result: long string describing the error is returned
+ ----*/
+char *
+error_description(errnumber)
+ int errnumber;
+{
+ static char buffer[50+1];
+
+ if(errnumber >= 0 && errnumber < sys_nerr)
+ sprintf(buffer, "%.*s", 50, sys_errlist[errnumber]);
+ else
+ sprintf(buffer, "Unknown error #%d", errnumber);
+
+ return ( (char *) buffer);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Pull the name out of the gcos field if we have that sort of /etc/passwd
+
+ Args: gcos_field -- The long name or GCOS field to be parsed
+ logname -- Replaces occurances of & with logname string
+
+ Result: returns pointer to buffer with name
+ ----*/
+static char *
+gcos_name(gcos_field, logname)
+ char *logname, *gcos_field;
+{
+ static char fullname[MAX_FULLNAME+1];
+ register char *fncp, *gcoscp, *lncp, *end;
+
+ /* full name is all chars up to first ',' (or whole gcos, if no ',') */
+ /* replace any & with logname in upper case */
+
+ for(fncp = fullname, gcoscp= gcos_field, end = fullname + MAX_FULLNAME - 1;
+ (*gcoscp != ',' && *gcoscp != '\0' && fncp != end);
+ gcoscp++) {
+
+ if(*gcoscp == '&') {
+ for(lncp = logname; *lncp; fncp++, lncp++)
+ *fncp = toupper((unsigned char)(*lncp));
+ } else {
+ *fncp++ = *gcoscp;
+ }
+ }
+
+ *fncp = '\0';
+ return(fullname);
+}
+
+
+/*----------------------------------------------------------------------
+ Fill in homedir, login, and fullname for the logged in user.
+ These are all pointers to static storage so need to be copied
+ in the caller.
+
+ Args: ui -- struct pointer to pass back answers
+
+ Result: fills in the fields
+ ----*/
+void
+get_user_info(ui)
+ struct user_info *ui;
+{
+ struct passwd *unix_pwd;
+
+ unix_pwd = getpwuid(getuid());
+ if(unix_pwd == NULL) {
+ ui->homedir = cpystr("");
+ ui->login = cpystr("");
+ ui->fullname = cpystr("");
+ }else {
+ ui->homedir = cpystr(unix_pwd->pw_dir);
+ ui->login = cpystr(unix_pwd->pw_name);
+ ui->fullname = cpystr(gcos_name(unix_pwd->pw_gecos, unix_pwd->pw_name));
+ }
+}
+
+
+/*----------------------------------------------------------------------
+ Look up a userid on the local system and return rfc822 address
+
+ Args: name -- possible login name on local system
+
+ Result: returns NULL or pointer to alloc'd string rfc822 address.
+ ----*/
+char *
+local_name_lookup(name)
+ char *name;
+{
+ struct passwd *pw = getpwnam(name);
+
+ if(pw == NULL){
+ char *p;
+
+ for(p = name; *p; p++)
+ if(isupper((unsigned char)*p))
+ break;
+
+ /* try changing it to all lower case */
+ if(p && *p){
+ char *lcase;
+
+ lcase = cpystr(name);
+ for(p = lcase; *p; p++)
+ if(isupper((unsigned char)*p))
+ *p = tolower((unsigned char)*p);
+
+ pw = getpwnam(lcase);
+
+ if(pw)
+ strcpy(name, lcase);
+
+ fs_give((void **)&lcase);
+ }
+ }
+
+ if(pw == NULL)
+ return((char *)NULL);
+
+ return(cpystr(gcos_name(pw->pw_gecos, name)));
+}
+
+
+
+/*----------------------------------------------------------------------
+ Call the system to change the passwd
+
+It would be nice to talk to the passwd program via a pipe or ptty so the
+user interface could be consistent, but we can't count on the the prompts
+and responses from the passwd program to be regular so we just let the user
+type at the passwd program with some screen space, hope he doesn't scroll
+off the top and repaint when he's done.
+ ----*/
+change_passwd()
+{
+ char cmd_buf[100];
+
+ ClearLines(1, ps_global->ttyo->screen_rows - 1);
+
+ MoveCursor(5, 0);
+ fflush(stdout);
+
+ PineRaw(0);
+ strcpy(cmd_buf, PASSWD_PROG);
+ system(cmd_buf);
+ sleep(3);
+ PineRaw(1);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Can we display this type/subtype?
+
+ Args: type -- the MIME type to check
+ subtype -- the MIME subtype
+ params -- parameters
+ use_viewer -- tell caller he should run external viewer cmd to view
+
+ Result: Returns:
+
+ MCD_NONE if we can't display this type at all
+ MCD_INTERNAL if we can display it internally
+ MCD_EXTERNAL if it can be displayed via an external viewer
+
+ ----*/
+mime_can_display(type, subtype, params)
+ int type;
+ char *subtype;
+ PARAMETER *params;
+{
+ return((mailcap_can_display(type, subtype, params)
+ ? MCD_EXTERNAL : MCD_NONE)
+ | ((type == TYPETEXT || type == TYPEMESSAGE
+ || MIME_VCARD(type,subtype))
+ ? MCD_INTERNAL : MCD_NONE));
+}
+
+
+
+/*======================================================================
+ pipe
+
+ Initiate I/O to and from a process. These functions are similar to
+ popen and pclose, but both an incoming stream and an output file are
+ provided.
+
+ ====*/
+
+#ifndef STDIN_FILENO
+#define STDIN_FILENO 0
+#endif
+#ifndef STDOUT_FILENO
+#define STDOUT_FILENO 1
+#endif
+#ifndef STDERR_FILENO
+#define STDERR_FILENO 2
+#endif
+
+
+/*
+ * Defs to help fish child's exit status out of wait(2)
+ */
+#ifdef HAVE_WAIT_UNION
+#define WaitType union wait
+#ifndef WIFEXITED
+#define WIFEXITED(X) (!(X).w_termsig) /* child exit by choice */
+#endif
+#ifndef WEXITSTATUS
+#define WEXITSTATUS(X) (X).w_retcode /* childs chosen exit value */
+#endif
+#else
+#define WaitType int
+#ifndef WIFEXITED
+#define WIFEXITED(X) (!((X) & 0xff)) /* low bits tell how it died */
+#endif
+#ifndef WEXITSTATUS
+#define WEXITSTATUS(X) (((X) >> 8) & 0xff) /* high bits tell exit value */
+#endif
+#endif
+
+
+/*
+ * Global's to helpsignal handler tell us child's status has changed...
+ */
+short child_signalled;
+short child_jump = 0;
+jmp_buf child_state;
+int child_pid;
+
+
+/*
+ * Internal Protos
+ */
+void pipe_error_cleanup PROTO((PIPE_S **, char *, char *, char *));
+void zot_pipe PROTO((PIPE_S **));
+static SigType pipe_alarm SIG_PROTO((int));
+
+
+
+
+/*----------------------------------------------------------------------
+ Spawn a child process and optionally connect read/write pipes to it
+
+ Args: command -- string to hand the shell
+ outfile -- address of pointer containing file to receive output
+ errfile -- address of pointer containing file to receive error output
+ mode -- mode for type of shell, signal protection etc...
+ Returns: pointer to alloc'd PIPE_S on success, NULL otherwise
+
+ The outfile is either NULL, a pointer to a NULL value, or a pointer
+ to the requested name for the output file. In the pointer-to-NULL case
+ the caller doesn't care about the name, but wants to see the pipe's
+ results so we make one up. It's up to the caller to make sure the
+ free storage containing the name is cleaned up.
+
+ Mode bits serve several purposes.
+ PIPE_WRITE tells us we need to open a pipe to write the child's
+ stdin.
+ PIPE_READ tells us we need to open a pipe to read from the child's
+ stdout/stderr. *NOTE* Having neither of the above set means
+ we're not setting up any pipes, just forking the child and exec'ing
+ the command. Also, this takes precedence over any named outfile.
+ PIPE_STDERR means we're to tie the childs stderr to the same place
+ stdout is going. *NOTE* This only makes sense then if PIPE_READ
+ or an outfile is provided. Also, this takes precedence over any
+ named errfile.
+ PIPE_PROT means to protect the child from the usual nasty signals
+ that might cause premature death. Otherwise, the default signals are
+ set so the child can deal with the nasty signals in its own way.
+ PIPE_NOSHELL means we're to exec the command without the aid of
+ a system shell. *NOTE* This negates the affect of PIPE_USER.
+ PIPE_USER means we're to try executing the command in the user's
+ shell. Right now we only look in the environment, but that may get
+ more sophisticated later.
+ PIPE_RESET means we reset the terminal mode to what it was before
+ we started pine and then exec the command.
+ ----*/
+PIPE_S *
+open_system_pipe(command, outfile, errfile, mode, timeout)
+ char *command;
+ char **outfile, **errfile;
+ int mode, timeout;
+{
+ PIPE_S *syspipe = NULL;
+ char shellpath[32], *shell;
+ int p[2], oparentd = -1, ochildd = -1, iparentd = -1, ichildd = -1;
+
+ dprint(5, (debugfile, "Opening pipe: \"%s\" (%s%s%s%s%s%s)\n", command,
+ (mode & PIPE_WRITE) ? "W":"", (mode & PIPE_READ) ? "R":"",
+ (mode & PIPE_NOSHELL) ? "N":"", (mode & PIPE_PROT) ? "P":"",
+ (mode & PIPE_USER) ? "U":"", (mode & PIPE_RESET) ? "T":""));
+
+ syspipe = (PIPE_S *)fs_get(sizeof(PIPE_S));
+ memset(syspipe, 0, sizeof(PIPE_S));
+
+ /*
+ * If we're not using the shell's command parsing smarts, build
+ * argv by hand...
+ */
+ if(mode & PIPE_NOSHELL){
+ char **ap, *p;
+ size_t n;
+
+ /* parse the arguments into argv */
+ for(p = command; *p && isspace((unsigned char)(*p)); p++)
+ ; /* swallow leading ws */
+
+ if(*p){
+ syspipe->args = cpystr(p);
+ }
+ else{
+ pipe_error_cleanup(&syspipe, "<null>", "execute",
+ "No command name found");
+ return(NULL);
+ }
+
+ for(p = syspipe->args, n = 2; *p; p++) /* count the args */
+ if(isspace((unsigned char)(*p))
+ && *(p+1) && !isspace((unsigned char)(*(p+1))))
+ n++;
+
+ syspipe->argv = ap = (char **)fs_get(n * sizeof(char *));
+ memset(syspipe->argv, 0, n * sizeof(char *));
+
+ for(p = syspipe->args; *p; ){ /* collect args */
+ while(*p && isspace((unsigned char)(*p)))
+ *p++ = '\0';
+
+ *ap++ = (*p) ? p : NULL;
+ while(*p && !isspace((unsigned char)(*p)))
+ p++;
+ }
+
+ /* make sure argv[0] exists in $PATH */
+ if(can_access_in_path(getenv("PATH"), syspipe->argv[0],
+ EXECUTE_ACCESS) < 0){
+ pipe_error_cleanup(&syspipe, syspipe->argv[0], "access",
+ error_description(errno));
+ return(NULL);
+ }
+ }
+
+ /* fill in any output filenames */
+ if(!(mode & PIPE_READ)){
+ if(outfile && !*outfile)
+ *outfile = temp_nam(NULL, "pine_p"); /* asked for, but not named? */
+
+ if(errfile && !*errfile)
+ *errfile = temp_nam(NULL, "pine_p"); /* ditto */
+ }
+
+ /* create pipes */
+ if(mode & (PIPE_WRITE | PIPE_READ)){
+ if(mode & PIPE_WRITE){
+ pipe(p); /* alloc pipe to write child */
+ oparentd = p[STDOUT_FILENO];
+ ichildd = p[STDIN_FILENO];
+ }
+
+ if(mode & PIPE_READ){
+ pipe(p); /* alloc pipe to read child */
+ iparentd = p[STDIN_FILENO];
+ ochildd = p[STDOUT_FILENO];
+ }
+ }
+ else if(!(mode & PIPE_SILENT)){
+ flush_status_messages(0); /* just clean up display */
+ ClearScreen();
+ fflush(stdout);
+ }
+
+ if((syspipe->mode = mode) & PIPE_RESET)
+ PineRaw(0);
+
+#ifdef SIGCHLD
+ /*
+ * Prepare for demise of child. Use SIGCHLD if it's available so
+ * we can do useful things, like keep the IMAP stream alive, while
+ * we're waiting on the child.
+ */
+ child_signalled = child_jump = 0;
+#endif
+
+ if((syspipe->pid = vfork()) == 0){
+ /* reset child's handlers in requested fashion... */
+ (void)signal(SIGINT, (mode & PIPE_PROT) ? SIG_IGN : SIG_DFL);
+ (void)signal(SIGQUIT, (mode & PIPE_PROT) ? SIG_IGN : SIG_DFL);
+ (void)signal(SIGHUP, (mode & PIPE_PROT) ? SIG_IGN : SIG_DFL);
+#ifdef SIGCHLD
+ (void) signal(SIGCHLD, SIG_DFL);
+#endif
+
+ /* if parent isn't reading, and we have a filename to write */
+ if(!(mode & PIPE_READ) && outfile){ /* connect output to file */
+ int output = creat(*outfile, 0600);
+ dup2(output, STDOUT_FILENO);
+ if(mode & PIPE_STDERR)
+ dup2(output, STDERR_FILENO);
+ else if(errfile)
+ dup2(creat(*errfile, 0600), STDERR_FILENO);
+ }
+
+ if(mode & PIPE_WRITE){ /* connect process input */
+ close(oparentd);
+ dup2(ichildd, STDIN_FILENO); /* tie stdin to pipe */
+ close(ichildd);
+ }
+
+ if(mode & PIPE_READ){ /* connect process output */
+ close(iparentd);
+ dup2(ochildd, STDOUT_FILENO); /* tie std{out,err} to pipe */
+ if(mode & PIPE_STDERR)
+ dup2(ochildd, STDERR_FILENO);
+ else if(errfile)
+ dup2(creat(*errfile, 0600), STDERR_FILENO);
+
+ close(ochildd);
+ }
+
+ if(mode & PIPE_NOSHELL){
+ execvp(syspipe->argv[0], syspipe->argv);
+ }
+ else{
+ if(mode & PIPE_USER){
+ char *env, *sh;
+ if((env = getenv("SHELL")) && (sh = strrchr(env, '/'))){
+ shell = sh + 1;
+ strcpy(shellpath, env);
+ }
+ else{
+ shell = "csh";
+ strcpy(shellpath, "/bin/csh");
+ }
+ }
+ else{
+ shell = "sh";
+ strcpy(shellpath, "/bin/sh");
+ }
+
+ execl(shellpath, shell, command ? "-c" : 0, command, 0);
+ }
+
+ fprintf(stderr, "Can't exec %s\nReason: %s",
+ command, error_description(errno));
+ _exit(-1);
+ }
+
+ if((child_pid = syspipe->pid) > 0){
+ syspipe->isig = signal(SIGINT, SIG_IGN); /* Reset handlers to make */
+ syspipe->qsig = signal(SIGQUIT, SIG_IGN); /* sure we don't come to */
+ syspipe->hsig = signal(SIGHUP, SIG_IGN); /* a premature end... */
+ if((syspipe->timeout = timeout) != 0){
+ syspipe->alrm = signal(SIGALRM, pipe_alarm);
+ syspipe->old_timeo = alarm(timeout);
+ }
+
+ if(mode & PIPE_WRITE){
+ close(ichildd);
+ if(mode & PIPE_DESC)
+ syspipe->out.d = oparentd;
+ else
+ syspipe->out.f = fdopen(oparentd, "w");
+ }
+
+ if(mode & PIPE_READ){
+ close(ochildd);
+ if(mode & PIPE_DESC)
+ syspipe->in.d = iparentd;
+ else
+ syspipe->in.f = fdopen(iparentd, "r");
+ }
+
+ dprint(5, (debugfile, "PID: %d, COMMAND: %s\n",syspipe->pid,command));
+ }
+ else{
+ if(mode & (PIPE_WRITE | PIPE_READ)){
+ if(mode & PIPE_WRITE){
+ close(oparentd);
+ close(ichildd);
+ }
+
+ if(mode & PIPE_READ){
+ close(iparentd);
+ close(ochildd);
+ }
+ }
+ else if(!(mode & PIPE_SILENT)){
+ ClearScreen();
+ ps_global->mangled_screen = 1;
+ }
+
+ if(mode & PIPE_RESET)
+ PineRaw(1);
+
+#ifdef SIGCHLD
+ (void) signal(SIGCHLD, SIG_DFL);
+#endif
+ if(outfile)
+ fs_give((void **) outfile);
+
+ pipe_error_cleanup(&syspipe, command, "fork",error_description(errno));
+ }
+
+ return(syspipe);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Write appropriate error messages and cleanup after pipe error
+
+ Args: syspipe -- address of pointer to struct to clean up
+ cmd -- command we were trying to exec
+ op -- operation leading up to the exec
+ res -- result of that operation
+
+ ----*/
+void
+pipe_error_cleanup(syspipe, cmd, op, res)
+ PIPE_S **syspipe;
+ char *cmd, *op, *res;
+{
+ q_status_message3(SM_ORDER, 3, 3, "Pipe can't %s \"%.20s\": %s",
+ op, cmd, res);
+ dprint(1, (debugfile, "* * PIPE CAN'T %s(%s): %s\n", op, cmd, res));
+ zot_pipe(syspipe);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Free resources associated with the given pipe struct
+
+ Args: syspipe -- address of pointer to struct to clean up
+
+ ----*/
+void
+zot_pipe(syspipe)
+ PIPE_S **syspipe;
+{
+ if((*syspipe)->args)
+ fs_give((void **) &(*syspipe)->args);
+
+ if((*syspipe)->argv)
+ fs_give((void **) &(*syspipe)->argv);
+
+ if((*syspipe)->tmp)
+ fs_give((void **) &(*syspipe)->tmp);
+
+ fs_give((void **)syspipe);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Close pipe previously allocated and wait for child's death
+
+ Args: syspipe -- address of pointer to struct returned by open_system_pipe
+ Returns: returns exit status of child or -1 if invalid syspipe
+ ----*/
+int
+close_system_pipe(syspipe)
+ PIPE_S **syspipe;
+{
+ WaitType stat;
+ int status;
+
+ if(!(syspipe && *syspipe))
+ return(-1);
+
+ if(((*syspipe)->mode) & PIPE_WRITE){
+ if(((*syspipe)->mode) & PIPE_DESC){
+ if((*syspipe)->out.d >= 0)
+ close((*syspipe)->out.d);
+ }
+ else if((*syspipe)->out.f)
+ fclose((*syspipe)->out.f);
+ }
+
+ if(((*syspipe)->mode) & PIPE_READ){
+ if(((*syspipe)->mode) & PIPE_DESC){
+ if((*syspipe)->in.d >= 0)
+ close((*syspipe)->in.d);
+ }
+ else if((*syspipe)->in.f)
+ fclose((*syspipe)->in.f);
+ }
+
+#ifdef SIGCHLD
+ {
+ SigType (*alarm_sig)();
+ int old_cue = F_ON(F_SHOW_DELAY_CUE, ps_global);
+
+ /*
+ * remember the current SIGALRM handler, and make sure it's
+ * installed when we're finished just in case the longjmp
+ * out of the SIGCHLD handler caused sleep() to lose it.
+ * Don't pay any attention to that man behind the curtain.
+ */
+ alarm_sig = signal(SIGALRM, SIG_IGN);
+ F_SET(F_SHOW_DELAY_CUE, ps_global, 0);
+ ps_global->noshow_timeout = 1;
+ while(!child_signalled){
+ /* wake up and prod server */
+ new_mail(0, 2, ((*syspipe)->mode & PIPE_RESET)
+ ? NM_NONE : NM_DEFER_SORT);
+
+ if(!child_signalled){
+ if(setjmp(child_state) == 0){
+ child_jump = 1; /* prepare to wake up */
+ sleep(600); /* give it 5mins to happend */
+ }
+ else
+ our_sigunblock(SIGCHLD);
+ }
+
+ child_jump = 0;
+ }
+
+ ps_global->noshow_timeout = 0;
+ F_SET(F_SHOW_DELAY_CUE, ps_global, old_cue);
+ (void) signal(SIGALRM, alarm_sig);
+ }
+#endif
+
+ /*
+ * Call c-client's pid reaper to wait() on the demise of our child,
+ * then fish out its exit status...
+ */
+ grim_pid_reap_status((*syspipe)->pid, 0, &stat);
+ status = WIFEXITED(stat) ? WEXITSTATUS(stat) : -1;
+
+ /*
+ * restore original handlers...
+ */
+ (void)signal(SIGINT, (*syspipe)->isig);
+ (void)signal(SIGHUP, (*syspipe)->hsig);
+ (void)signal(SIGQUIT, (*syspipe)->qsig);
+
+ if((*syspipe)->timeout){
+ (void)signal(SIGALRM, (*syspipe)->alrm);
+ alarm((*syspipe)->old_timeo);
+ child_pid = 0;
+ }
+
+ if((*syspipe)->mode & PIPE_RESET) /* restore our tty modes */
+ PineRaw(1);
+
+ if(!((*syspipe)->mode & (PIPE_WRITE | PIPE_READ | PIPE_SILENT))){
+ ClearScreen(); /* No I/O to forked child */
+ ps_global->mangled_screen = 1;
+ }
+
+ zot_pipe(syspipe);
+
+ return(status);
+}
+
+
+
+static SigType
+pipe_alarm SIG_PROTO((int sig))
+{
+ if(child_pid)
+ kill(child_pid, SIGINT);
+}
+
+/*======================================================================
+ post_reap
+
+ Manage exit status collection of a child spawned to handle posting
+ ====*/
+
+
+
+#if defined(BACKGROUND_POST) && defined(SIGCHLD)
+/*----------------------------------------------------------------------
+ Check to see if we have any posting processes to clean up after
+
+ Args: none
+ Returns: any finished posting process reaped
+ ----*/
+post_reap()
+{
+ WaitType stat;
+ int r;
+
+ if(ps_global->post && ps_global->post->pid){
+ r = waitpid(ps_global->post->pid, &stat, WNOHANG);
+ if(r == ps_global->post->pid){
+ ps_global->post->status = WIFEXITED(stat) ? WEXITSTATUS(stat) : -1;
+ ps_global->post->pid = 0;
+ return(1);
+ }
+ else if(r < 0 && errno != EINTR){ /* pid's become bogus?? */
+ fs_give((void **) &ps_global->post);
+ }
+ }
+
+ return(0);
+}
+#endif
+
+/*----------------------------------------------------------------------
+ Routines used to hand off messages to local agents for sending/posting
+
+ The two exported routines are:
+
+ 1) smtp_command() -- used to get local transport agent to invoke
+ 2) post_handoff() -- used to pass messages to local posting agent
+
+ ----*/
+
+
+
+/*
+ * Protos for "sendmail" internal functions
+ */
+static char *mta_parse_post PROTO((METAENV *, BODY *, char *, char *));
+static long pine_pipe_soutr_nl PROTO((void *, char *));
+
+
+
+/* ----------------------------------------------------------------------
+ Figure out command to start local SMTP agent
+
+ Args: errbuf -- buffer for reporting errors (assumed non-NULL)
+
+ Returns an alloc'd copy of the local SMTP agent invocation or NULL
+
+ ----*/
+char *
+smtp_command(errbuf)
+ char *errbuf;
+{
+#if defined(SENDMAIL) && defined(SENDMAILFLAGS)
+ char tmp[256];
+
+ sprintf(tmp, "%s %s", SENDMAIL, SENDMAILFLAGS);
+ return(cpystr(tmp));
+#else
+ strcpy(errbuf, "No default posting command.");
+ return(NULL);
+#endif
+}
+
+
+
+/*----------------------------------------------------------------------
+ Hand off given message to local posting agent
+
+ Args: envelope -- The envelope for the BCC and debugging
+ header -- The text of the message header
+ errbuf -- buffer for reporting errors (assumed non-NULL)
+
+ ----*/
+int
+mta_handoff(header, body, errbuf)
+ METAENV *header;
+ BODY *body;
+ char *errbuf;
+{
+ char cmd_buf[256], *cmd = NULL;
+
+ /*
+ * A bit of complicated policy implemented here.
+ * There are two posting variables sendmail-path and smtp-server.
+ * Precedence is in that order.
+ * They can be set one of 4 ways: fixed, command-line, user, or globally.
+ * Precedence is in that order.
+ * Said differently, the order goes something like what's below.
+ *
+ * NOTE: the fixed/command-line/user precendence handling is also
+ * indicated by what's pointed to by ps_global->VAR_*, but since
+ * that also includes the global defaults, it's not sufficient.
+ */
+
+ if(ps_global->FIX_SENDMAIL_PATH
+ && ps_global->FIX_SENDMAIL_PATH[0]){
+ cmd = ps_global->FIX_SENDMAIL_PATH;
+ }
+ else if(!(ps_global->FIX_SMTP_SERVER
+ && ps_global->FIX_SMTP_SERVER[0])){
+ if(ps_global->COM_SENDMAIL_PATH
+ && ps_global->COM_SENDMAIL_PATH[0]){
+ cmd = ps_global->COM_SENDMAIL_PATH;
+ }
+ else if(!(ps_global->COM_SMTP_SERVER
+ && ps_global->COM_SMTP_SERVER[0])){
+ if(ps_global->USR_SENDMAIL_PATH
+ && ps_global->USR_SENDMAIL_PATH[0]){
+ cmd = ps_global->USR_SENDMAIL_PATH;
+ }
+ else if(!(ps_global->USR_SMTP_SERVER
+ && ps_global->USR_SMTP_SERVER[0])){
+ if(ps_global->GLO_SENDMAIL_PATH
+ && ps_global->GLO_SENDMAIL_PATH[0]){
+ cmd = ps_global->GLO_SENDMAIL_PATH;
+ }
+#ifdef DF_SENDMAIL_PATH
+ /*
+ * This defines the default method of posting. So,
+ * unless we're told otherwise use it...
+ */
+ else if(!(ps_global->GLO_SMTP_SERVER
+ && ps_global->GLO_SMTP_SERVER[0])){
+ strcpy(cmd = cmd_buf, DF_SENDMAIL_PATH);
+ }
+#endif
+ }
+ }
+ }
+
+ *errbuf = '\0';
+ if(cmd){
+ dprint(4, (debugfile, "call_mailer via cmd: %s\n", cmd));
+
+ (void) mta_parse_post(header, body, cmd, errbuf);
+ return(1);
+ }
+ else
+ return(0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Hand off given message to local posting agent
+
+ Args: envelope -- The envelope for the BCC and debugging
+ header -- The text of the message header
+ errbuf -- buffer for reporting errors (assumed non-NULL)
+
+ Fork off mailer process and pipe the message into it
+ Called to post news via Inews when NNTP is unavailable
+
+ ----*/
+char *
+post_handoff(header, body, errbuf)
+ METAENV *header;
+ BODY *body;
+ char *errbuf;
+{
+ char *err = NULL;
+#ifdef SENDNEWS
+ char *s;
+
+ if(s = strstr(header->env->date," (")) /* fix the date format for news */
+ *s = '\0';
+
+ if(err = mta_parse_post(header, body, SENDNEWS, errbuf))
+ sprintf(err = errbuf, "News not posted: \"%s\": %s", SENDNEWS, err);
+
+ if(s)
+ *s = ' '; /* restore the date */
+
+#else /* !SENDNEWS */ /* this is the default case */
+ sprintf(err = errbuf, "Can't post, NNTP-server must be defined!");
+#endif /* !SENDNEWS */
+ return(err);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Hand off message to local MTA; it parses recipients from 822 header
+
+ Args: header -- struct containing header data
+ body -- struct containing message body data
+ cmd -- command to use for handoff (%s says where file should go)
+ errs -- pointer to buf to hold errors
+
+ ----*/
+static char *
+mta_parse_post(header, body, cmd, errs)
+ METAENV *header;
+ BODY *body;
+ char *cmd;
+ char *errs;
+{
+ char *result = NULL;
+ PIPE_S *pipe;
+
+ dprint(1, (debugfile, "=== mta_parse_post(%s) ===\n", cmd));
+
+ if(pipe = open_system_pipe(cmd, &result, NULL,
+ PIPE_STDERR|PIPE_WRITE|PIPE_PROT|PIPE_NOSHELL|PIPE_DESC, 0)){
+ if(!pine_rfc822_output(header, body, pine_pipe_soutr_nl,
+ (TCPSTREAM *) pipe))
+ strcpy(errs, "Error posting.");
+
+ if(close_system_pipe(&pipe) && !*errs){
+ sprintf(errs, "Posting program %s returned error", cmd);
+ if(result)
+ display_output_file(result, "POSTING ERRORS", errs, 1);
+ }
+ }
+ else
+ sprintf(errs, "Error running \"%s\"", cmd);
+
+ if(result){
+ unlink(result);
+ fs_give((void **)&result);
+ }
+
+ return(*errs ? errs : NULL);
+}
+
+
+/*
+ * pine_pipe_soutr - Replacement for tcp_soutr that writes one of our
+ * pipes rather than a tcp stream
+ */
+static long
+pine_pipe_soutr_nl (stream,s)
+ void *stream;
+ char *s;
+{
+ long rv = T;
+ char *p;
+ size_t n;
+
+ while(*s && rv){
+ if(n = (p = strstr(s, "\015\012")) ? p - s : strlen(s))
+ while((rv = write(((PIPE_S *)stream)->out.d, s, n)) != n)
+ if(rv < 0){
+ if(errno != EINTR){
+ rv = 0;
+ break;
+ }
+ }
+ else{
+ s += rv;
+ n -= rv;
+ }
+
+ if(p && rv){
+ s = p + 2; /* write UNIX EOL */
+ while((rv = write(((PIPE_S *)stream)->out.d,"\n",1)) != 1)
+ if(rv < 0 && errno != EINTR){
+ rv = 0;
+ break;
+ }
+ }
+ else
+ break;
+ }
+
+ return(rv);
+}
+
+/* ----------------------------------------------------------------------
+ Execute the given mailcap command
+
+ Args: cmd -- the command to execute
+ image_file -- the file the data is in
+ needsterminal -- does this command want to take over the terminal?
+ ----*/
+void
+exec_mailcap_cmd(cmd, image_file, needsterminal)
+char *cmd;
+char *image_file;
+int needsterminal;
+{
+ char *command = NULL,
+ *result_file = NULL,
+ *p;
+ char **r_file_h;
+ PIPE_S *syspipe;
+ int mode;
+
+ p = command = (char *)fs_get((32 + strlen(cmd) + (2*strlen(image_file)))
+ * sizeof(char));
+ if(!needsterminal) /* put in background if it doesn't need terminal */
+ *p++ = '(';
+ sprintf(p, "%s ; rm -f %s", cmd, image_file);
+ p += strlen(p);
+ if(!needsterminal){
+ *p++ = ')';
+ *p++ = ' ';
+ *p++ = '&';
+ }
+ *p++ = '\n';
+ *p = '\0';
+ dprint(9, (debugfile, "exec_mailcap_cmd: command=%s\n", command));
+
+ mode = PIPE_RESET;
+ if(needsterminal == 1)
+ r_file_h = NULL;
+ else{
+ mode |= PIPE_WRITE | PIPE_STDERR;
+ result_file = temp_nam(NULL, "pine_cmd");
+ r_file_h = &result_file;
+ }
+
+ if(syspipe = open_system_pipe(command, r_file_h, NULL, mode, 0)){
+ close_system_pipe(&syspipe);
+ if(needsterminal == 1)
+ q_status_message(SM_ORDER, 0, 4, "VIEWER command completed");
+ else if(needsterminal == 2)
+ display_output_file(result_file, "VIEWER", " command result", 1);
+ else
+ display_output_file(result_file, "VIEWER", " command launched", 1);
+ }
+ else
+ q_status_message1(SM_ORDER, 3, 4, "Cannot spawn command : %s", cmd);
+
+ fs_give((void **)&command);
+ if(result_file)
+ fs_give((void **)&result_file);
+}
+
+
+/* ----------------------------------------------------------------------
+ Execute the given mailcap test= cmd
+
+ Args: cmd -- command to execute
+ Returns exit status
+
+ ----*/
+int
+exec_mailcap_test_cmd(cmd)
+ char *cmd;
+{
+ PIPE_S *syspipe;
+
+ return((syspipe = open_system_pipe(cmd, NULL, NULL, PIPE_SILENT, 0))
+ ? close_system_pipe(&syspipe) : -1);
+}
+
+
+
+/*======================================================================
+ print routines
+
+ Functions having to do with printing on paper and forking of spoolers
+
+ In general one calls open_printer() to start printing. One of
+ the little print functions to send a line or string, and then
+ call print_end() when complete. This takes care of forking off a spooler
+ and piping the stuff down it. No handles or anything here because there's
+ only one printer open at a time.
+
+ ====*/
+
+
+
+static char *trailer; /* so both open and close_printer can see it */
+
+/*----------------------------------------------------------------------
+ Open the printer
+
+ Args: desc -- Description of item to print. Should have one trailing blank.
+
+ Return value: < 0 is a failure.
+ 0 a success.
+
+This does most of the work of popen so we can save the standard output of the
+command we execute and send it back to the user.
+ ----*/
+int
+open_printer(desc)
+ char *desc;
+{
+ char command[201], prompt[200];
+ int cmd, rc, just_one;
+ char *p, *init, *nick;
+ char aname[100];
+ char *printer;
+ int done = 0, i, lastprinter, cur_printer = 0;
+ HelpType help;
+ char **list;
+ static ESCKEY_S ekey[] = {
+ {'y', 'y', "Y", "Yes"},
+ {'n', 'n', "N", "No"},
+ {ctrl('P'), 10, "^P", "Prev Printer"},
+ {ctrl('N'), 11, "^N", "Next Printer"},
+ {-2, 0, NULL, NULL},
+ {'c', 'c', "C", "CustomPrint"},
+ {KEY_UP, 10, "", ""},
+ {KEY_DOWN, 11, "", ""},
+ {-1, 0, NULL, NULL}};
+#define PREV_KEY 2
+#define NEXT_KEY 3
+#define CUSTOM_KEY 5
+#define UP_KEY 6
+#define DOWN_KEY 7
+
+ trailer = NULL;
+ init = NULL;
+ nick = NULL;
+ command[200] = '\0';
+
+ if(ps_global->VAR_PRINTER == NULL){
+ q_status_message(SM_ORDER | SM_DING, 3, 5,
+ "No printer has been chosen. Use SETUP on main menu to make choice.");
+ return(-1);
+ }
+
+ /* Is there just one print command available? */
+ just_one = (ps_global->printer_category!=3&&ps_global->printer_category!=2)
+ || (ps_global->printer_category == 2
+ && !(ps_global->VAR_STANDARD_PRINTER
+ && ps_global->VAR_STANDARD_PRINTER[0]
+ && ps_global->VAR_STANDARD_PRINTER[1]))
+ || (ps_global->printer_category == 3
+ && !(ps_global->VAR_PERSONAL_PRINT_COMMAND
+ && ps_global->VAR_PERSONAL_PRINT_COMMAND[0]
+ && ps_global->VAR_PERSONAL_PRINT_COMMAND[1]));
+
+ if(F_ON(F_CUSTOM_PRINT, ps_global))
+ ekey[CUSTOM_KEY].ch = 'c'; /* turn this key on */
+ else
+ ekey[CUSTOM_KEY].ch = -2; /* turn this key off */
+
+ if(just_one){
+ ekey[PREV_KEY].ch = -2; /* turn these keys off */
+ ekey[NEXT_KEY].ch = -2;
+ ekey[UP_KEY].ch = -2;
+ ekey[DOWN_KEY].ch = -2;
+ }
+ else{
+ ekey[PREV_KEY].ch = ctrl('P'); /* turn these keys on */
+ ekey[NEXT_KEY].ch = ctrl('N');
+ ekey[UP_KEY].ch = KEY_UP;
+ ekey[DOWN_KEY].ch = KEY_DOWN;
+ /*
+ * count how many printers in list and find the default in the list
+ */
+ if(ps_global->printer_category == 2)
+ list = ps_global->VAR_STANDARD_PRINTER;
+ else
+ list = ps_global->VAR_PERSONAL_PRINT_COMMAND;
+
+ for(i = 0; list[i]; i++)
+ if(strcmp(ps_global->VAR_PRINTER, list[i]) == 0)
+ cur_printer = i;
+
+ lastprinter = i - 1;
+ }
+
+ help = NO_HELP;
+ ps_global->mangled_footer = 1;
+
+ while(!done){
+ if(init)
+ fs_give((void **)&init);
+
+ if(trailer)
+ fs_give((void **)&trailer);
+
+ if(just_one)
+ printer = ps_global->VAR_PRINTER;
+ else
+ printer = list[cur_printer];
+
+ parse_printer(printer, &nick, &p, &init, &trailer, NULL, NULL);
+ strncpy(command, p, 200);
+ fs_give((void **)&p);
+ sprintf(prompt, "Print %.50s%susing \"%.50s\" ? ",
+ desc ? desc : "",
+ (desc && *desc && desc[strlen(desc) - 1] != ' ') ? " " : "",
+ *nick ? nick : command);
+
+ fs_give((void **)&nick);
+
+ cmd = radio_buttons(prompt, -FOOTER_ROWS(ps_global),
+ ekey, 'y', 'x', help, RB_NORM);
+
+ switch(cmd){
+ case 'y':
+ q_status_message1(SM_ORDER, 0, 9,
+ "Printing with command \"%s\"", command);
+ done++;
+ break;
+
+ case 10:
+ cur_printer = (cur_printer>0)
+ ? (cur_printer-1)
+ : lastprinter;
+ break;
+
+ case 11:
+ cur_printer = (cur_printer<lastprinter)
+ ? (cur_printer+1)
+ : 0;
+ break;
+
+ case 'n':
+ case 'x':
+ done++;
+ break;
+
+ case 'c':
+ done++;
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ if(cmd == 'c'){
+ if(init)
+ fs_give((void **)&init);
+
+ if(trailer)
+ fs_give((void **)&trailer);
+
+ sprintf(prompt, "Enter custom command : ");
+ command[0] = '\0';
+ rc = 1;
+ help = NO_HELP;
+ while(rc){
+ int flags = OE_APPEND_CURRENT;
+
+ rc = optionally_enter(command, -FOOTER_ROWS(ps_global), 0,
+ 200, prompt, NULL, help, &flags);
+
+ if(rc == 1){
+ cmd = 'x';
+ rc = 0;
+ }
+ else if(rc == 3)
+ help = (help == NO_HELP) ? h_custom_print : NO_HELP;
+ else if(rc == 0){
+ removing_trailing_white_space(command);
+ removing_leading_white_space(command);
+ q_status_message1(SM_ORDER, 0, 9,
+ "Printing with command \"%s\"", command);
+ }
+ }
+ }
+
+ if(cmd == 'x' || cmd == 'n'){
+ q_status_message(SM_ORDER, 0, 2, "Print cancelled");
+ if(init)
+ fs_give((void **)&init);
+
+ if(trailer)
+ fs_give((void **)&trailer);
+
+ return(-1);
+ }
+
+ display_message('x');
+
+ ps_global->print = (PRINT_S *)fs_get(sizeof(PRINT_S));
+ memset(ps_global->print, 0, sizeof(PRINT_S));
+
+ strcat(strcpy(aname, ANSI_PRINTER), "-no-formfeed");
+ if(strucmp(command, ANSI_PRINTER) == 0
+ || strucmp(command, aname) == 0){
+ /*----------- Printer attached to ansi device ---------*/
+ q_status_message(SM_ORDER, 0, 9,
+ "Printing to attached desktop printer...");
+ display_message('x');
+ xonxoff_proc(1); /* make sure XON/XOFF used */
+ crlf_proc(1); /* AND LF->CR xlation */
+ fputs("\033[5i", stdout);
+ ps_global->print->fp = stdout;
+ if(strucmp(command, ANSI_PRINTER) == 0){
+ /* put formfeed at the end of the trailer string */
+ if(trailer){
+ int len = strlen(trailer);
+
+ fs_resize((void **)&trailer, len+2);
+ trailer[len] = '\f';
+ trailer[len+1] = '\0';
+ }
+ else
+ trailer = cpystr("\f");
+ }
+ }
+ else{
+ /*----------- Print by forking off a UNIX command ------------*/
+ dprint(4, (debugfile, "Printing using command \"%s\"\n", command));
+ ps_global->print->result = temp_nam(NULL, "pine_prt");
+ if(ps_global->print->pipe = open_system_pipe(command,
+ &ps_global->print->result, NULL,
+ PIPE_WRITE | PIPE_STDERR, 0)){
+ ps_global->print->fp = ps_global->print->pipe->out.f;
+ }
+ else{
+ fs_give((void **)&ps_global->print->result);
+ q_status_message1(SM_ORDER | SM_DING, 3, 4,
+ "Error opening printer: %s",
+ error_description(errno));
+ dprint(2, (debugfile, "Error popening printer \"%s\"\n",
+ error_description(errno)));
+ if(init)
+ fs_give((void **)&init);
+
+ if(trailer)
+ fs_give((void **)&trailer);
+
+ return(-1);
+ }
+ }
+
+ ps_global->print->err = 0;
+ if(init){
+ if(*init)
+ fputs(init, ps_global->print->fp);
+
+ fs_give((void **)&init);
+ }
+
+ return(0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Close printer
+
+ If we're piping to a spooler close down the pipe and wait for the process
+to finish. If we're sending to an attached printer send the escape sequence.
+Also let the user know the result of the print
+ ----*/
+void
+close_printer()
+{
+ if(trailer){
+ if(*trailer)
+ fputs(trailer, ps_global->print->fp);
+
+ fs_give((void **)&trailer);
+ }
+
+ if(ps_global->print->fp == stdout) {
+ fputs("\033[4i", stdout);
+ fflush(stdout);
+ if(F_OFF(F_PRESERVE_START_STOP, ps_global))
+ xonxoff_proc(0); /* turn off XON/XOFF */
+
+ crlf_proc(0); /* turn off CF->LF xlantion */
+ } else {
+ (void) close_system_pipe(&ps_global->print->pipe);
+ display_output_file(ps_global->print->result, "PRINT", NULL, 1);
+ fs_give((void **)&ps_global->print->result);
+ }
+
+ fs_give((void **)&ps_global->print);
+
+ q_status_message(SM_ASYNC, 0, 3, "Print command completed");
+ display_message('x');
+}
+
+
+
+/*----------------------------------------------------------------------
+ Print a single character
+
+ Args: c -- char to print
+ Returns: 1 on success, 0 on ps_global->print->err
+ ----*/
+int
+print_char(c)
+ int c;
+{
+ if(!ps_global->print->err && putc(c, ps_global->print->fp) == EOF)
+ ps_global->print->err = 1;
+
+ return(!ps_global->print->err);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Send a line of text to the printer
+
+ Args: line -- Text to print
+
+ ----*/
+
+void
+print_text(line)
+ char *line;
+{
+ if(!ps_global->print->err && fputs(line, ps_global->print->fp) == EOF)
+ ps_global->print->err = 1;
+}
+
+
+
+/*----------------------------------------------------------------------
+ printf style formatting with one arg for printer
+
+ Args: line -- The printf control string
+ a1 -- The 1st argument for printf
+ ----*/
+void
+print_text1(line, a1)
+ char *line, *a1;
+{
+ if(!ps_global->print->err
+ && fprintf(ps_global->print->fp, line, a1) < 0)
+ ps_global->print->err = 1;
+}
+
+
+
+/*----------------------------------------------------------------------
+ printf style formatting with one arg for printer
+
+ Args: line -- The printf control string
+ a1 -- The 1st argument for printf
+ a2 -- The 2nd argument for printf
+ ----*/
+void
+print_text2(line, a1, a2)
+ char *line, *a1, *a2;
+{
+ if(!ps_global->print->err
+ && fprintf(ps_global->print->fp, line, a1, a2) < 0)
+ ps_global->print->err = 1;
+}
+
+
+
+/*----------------------------------------------------------------------
+ printf style formatting with one arg for printer
+
+ Args: line -- The printf control string
+ a1 -- The 1st argument for printf
+ a2 -- The 2nd argument for printf
+ a3 -- The 3rd argument for printf
+ ----*/
+void
+print_text3(line, a1, a2, a3)
+ char *line, *a1, *a2, *a3;
+{
+ if(!ps_global->print->err
+ && fprintf(ps_global->print->fp, line, a1, a2, a3) < 0)
+ ps_global->print->err = 1;
+}
+
+#ifdef DEBUG
+/*----------------------------------------------------------------------
+ Initialize debugging - open the debug log file
+
+ Args: none
+
+ Result: opens the debug logfile for dprints
+
+ Opens the file "~/.pine-debug1. Also maintains .pine-debug[2-4]
+ by renaming them each time so the last 4 sessions are saved.
+ ----*/
+void
+init_debug()
+{
+ char nbuf[5];
+ char newfname[MAXPATH+1], filename[MAXPATH+1];
+ int i, fd;
+
+ if(!(debug || ps_global->debug_imap))
+ return;
+
+ for(i = ps_global->debug_nfiles - 1; i > 0; i--){
+ build_path(filename, ps_global->home_dir, DEBUGFILE);
+ strcpy(newfname, filename);
+ sprintf(nbuf, "%d", i);
+ strcat(filename, nbuf);
+ sprintf(nbuf, "%d", i+1);
+ strcat(newfname, nbuf);
+ (void)rename_file(filename, newfname);
+ }
+
+ build_path(filename, ps_global->home_dir, DEBUGFILE);
+ strcat(filename, "1");
+
+ debugfile = NULL;
+ if((fd = open(filename, O_TRUNC|O_RDWR|O_CREAT, 0600)) >= 0)
+ debugfile = fdopen(fd, "w+");
+
+ if(debugfile != NULL){
+ time_t now = time((time_t *)0);
+ if(ps_global->debug_flush)
+ setbuf(debugfile, NULL);
+
+ if(ps_global->debug_nfiles == 0){
+ /*
+ * If no debug files are asked for, make filename a tempfile
+ * to be used for a record should pine later crash...
+ */
+ if(debug < 9 && !ps_global->debug_flush && ps_global->debug_imap<4)
+ unlink(filename);
+ }
+
+ dprint(0, (debugfile,
+ "Debug output of the Pine program (debug=%d debug_imap=%d). Version %s\n%s\n",
+ debug, ps_global->debug_imap, pine_version, ctime(&now)));
+ }
+}
+
+
+/*----------------------------------------------------------------------
+ Try to save the debug file if we crash in a controlled way
+
+ Args: dfile: pointer to open debug file
+
+ Result: tries to move the appropriate .pine-debugx file to .pine-crash
+
+ Looks through the four .pine-debug files hunting for the one that is
+ associated with this pine, and then renames it.
+ ----*/
+void
+save_debug_on_crash(dfile)
+FILE *dfile;
+{
+ char nbuf[5], crashfile[MAXPATH+1], filename[MAXPATH+1];
+ int i;
+ struct stat dbuf, tbuf;
+ time_t now = time((time_t *)0);
+
+ if(!(dfile && fstat(fileno(dfile), &dbuf) != 0))
+ return;
+
+ fprintf(dfile, "\nsave_debug_on_crash: Version %s: debug level %d\n",
+ pine_version, debug);
+ fprintf(dfile, "\n : %s\n", ctime(&now));
+
+ build_path(crashfile, ps_global->home_dir, ".pine-crash");
+
+ fprintf(dfile, "\nAttempting to save debug file to %s\n", crashfile);
+ fprintf(stderr,
+ "\n\n Attempting to save debug file to %s\n\n", crashfile);
+
+ /* Blat out last n keystrokes */
+ fputs("========== Latest keystrokes ==========\n", dfile);
+ while((i = key_playback(0)) != -1)
+ fprintf(dfile, "\t%s\t(0x%04.4x)\n", pretty_command(i), i);
+
+ /* look for existing debug file */
+ for(i = 1; i <= ps_global->debug_nfiles; i++){
+ build_path(filename, ps_global->home_dir, DEBUGFILE);
+ sprintf(nbuf, "%d", i);
+ strcat(filename, nbuf);
+ if(stat(filename, &tbuf) != 0)
+ continue;
+
+ /* This must be the current debug file */
+ if(tbuf.st_dev == dbuf.st_dev && tbuf.st_ino == dbuf.st_ino){
+ rename_file(filename, crashfile);
+ break;
+ }
+ }
+
+ /* if current debug file name not found, write it by hand */
+ if(i > ps_global->debug_nfiles){
+ FILE *cfp;
+ char buf[1025];
+
+ /*
+ * Copy the debug temp file into the
+ */
+ if(cfp = fopen(crashfile, "w")){
+ buf[1024] = '\0';
+ fseek(dfile, 0L, 0);
+ while(fgets(buf, 1025, dfile) && fputs(buf, cfp) != EOF)
+ ;
+
+ fclose(cfp);
+ }
+ }
+
+ fclose(dfile);
+}
+
+
+#define CHECK_EVERY_N_TIMES 100
+#define MAX_DEBUG_FILE_SIZE 200000L
+/*
+ * This is just to catch runaway Pines that are looping spewing out
+ * debugging (and filling up a file system). The stop doesn't have to be
+ * at all precise, just soon enough to hopefully prevent filling the
+ * file system. If the debugging level is high (9 for now), then we're
+ * presumably looking for some problem, so don't truncate.
+ */
+int
+do_debug(debug_fp)
+FILE *debug_fp;
+{
+ static int counter = CHECK_EVERY_N_TIMES;
+ static int ok = 1;
+ long filesize;
+
+ if(debug == DEFAULT_DEBUG
+ && !ps_global->debug_flush
+ && !ps_global->debug_timestamp
+ && ps_global->debug_imap < 2
+ && ok
+ && --counter <= 0){
+ if((filesize = fp_file_size(debug_fp)) != -1L)
+ ok = (unsigned long)filesize < (unsigned long)MAX_DEBUG_FILE_SIZE;
+
+ counter = CHECK_EVERY_N_TIMES;
+ if(!ok){
+ fprintf(debug_fp, "\n\n --- No more debugging ---\n");
+ fprintf(debug_fp,
+ " (debug file growing too large - over %ld bytes)\n\n",
+ MAX_DEBUG_FILE_SIZE);
+ fflush(debug_fp);
+ }
+ }
+
+ if(ok && ps_global->debug_timestamp)
+ fprintf(debug_fp, "\n%s\n", debug_time(0));
+
+ return(ok);
+}
+
+
+/*
+ * Returns a pointer to static string for a timestamp.
+ *
+ * If timestamp is set .subseconds are added if available.
+ * If include_date is set the date is appended.
+ */
+char *
+debug_time(include_date)
+ int include_date;
+{
+ time_t t;
+ struct tm *tm_now;
+ struct timeval tp;
+ struct timezone tzp;
+ static char timestring[23];
+ char subsecond[8];
+ char datestr[7];
+
+ if(gettimeofday(&tp, &tzp) == 0){
+ t = (time_t)tp.tv_sec;
+ if(include_date){
+ tm_now = localtime(&t);
+ sprintf(datestr, " %d/%d", tm_now->tm_mon+1, tm_now->tm_mday);
+ }
+ else
+ datestr[0] = '\0';
+
+ if(ps_global->debug_timestamp)
+ sprintf(subsecond, ".%06ld", tp.tv_usec);
+ else
+ subsecond[0] = '\0';
+
+ sprintf(timestring, "%.8s%s%s", ctime(&t)+11, subsecond, datestr);
+ }
+ else
+ timestring[0] = '\0';
+
+ return(timestring);
+}
+#endif /* DEBUG */
+
+
+/*
+ * Fills in the passed in structure with the current time.
+ *
+ * Returns 0 if ok
+ * -1 if can't do it
+ */
+int
+get_time(our_time_val)
+ TIMEVAL_S *our_time_val;
+{
+ struct timeval tp;
+ struct timezone tzp;
+
+ if(gettimeofday(&tp, &tzp) == 0){
+ our_time_val->sec = tp.tv_sec;
+ our_time_val->usec = tp.tv_usec;
+ return 0;
+ }
+ else
+ return -1;
+}
+
+
+/*
+ * Returns the difference between the two values, in microseconds.
+ * Value returned is first - second.
+ */
+long
+time_diff(first, second)
+ TIMEVAL_S *first,
+ *second;
+{
+ return(1000000L*(first->sec - second->sec) + (first->usec - second->usec));
+}
+
+
+
+/*======================================================================
+ Things having to do with reading from the tty driver and keyboard
+ - initialize tty driver and reset tty driver
+ - read a character from terminal with keyboard escape seqence mapping
+ - initialize keyboard (keypad or such) and reset keyboard
+ - prompt user for a line of input
+ - read a command from keyboard with timeouts.
+
+ ====*/
+
+
+/*
+ * Helpful definitions
+ */
+#define RETURN_CH(X) return(key_recorder((X)))
+/*
+ * Should really be using pico's TERM's t_getchar to read a character but
+ * we're just calling ttgetc directly for now. Ttgetc is the same as
+ * t_getchar whenever we use it so we're avoiding the trouble of initializing
+ * the TERM struct and calling ttgetc directly.
+ */
+#define READ_A_CHAR() ttgetc(NO_OP_COMMAND, key_recorder, read_bail)
+
+
+/*
+ * Internal prototypes
+ */
+int pine_simple_ttgetc PROTO((int (*)(), void (*)()));
+void line_paint PROTO((int, int *));
+int process_config_input PROTO((int *));
+int check_for_timeout PROTO((int));
+void read_bail PROTO((void));
+
+
+/*----------------------------------------------------------------------
+ Initialize the tty driver to do single char I/O and whatever else (UNIX)
+
+ Args: struct pine
+
+ Result: tty driver is put in raw mode so characters can be read one
+ at a time. Returns -1 if unsuccessful, 0 if successful.
+
+Some file descriptor voodoo to allow for pipes across vforks. See
+open_mailer for details.
+ ----------------------------------------------------------------------*/
+init_tty_driver(ps)
+ struct pine *ps;
+{
+#ifdef MOUSE
+ if(F_ON(F_ENABLE_MOUSE, ps_global))
+ init_mouse();
+#endif /* MOUSE */
+
+ /* turn off talk permission by default */
+
+ if(F_ON(F_ALLOW_TALK, ps))
+ allow_talk(ps);
+ else
+ disallow_talk(ps);
+
+ return(PineRaw(1));
+}
+
+
+
+/*----------------------------------------------------------------------
+ Set or clear the specified tty mode
+
+ Args: ps -- struct pine
+ mode -- mode bits to modify
+ clear -- whether or not to clear or set
+
+ Result: tty driver mode change.
+ ----------------------------------------------------------------------*/
+void
+tty_chmod(ps, mode, func)
+ struct pine *ps;
+ int mode;
+ int func;
+{
+ char *tty_name;
+ int new_mode;
+ struct stat sbuf;
+ static int saved_mode = -1;
+
+ /* if no problem figuring out tty's name & mode? */
+ if((((tty_name = (char *) ttyname(STDIN_FD)) != NULL
+ && fstat(STDIN_FD, &sbuf) == 0)
+ || ((tty_name = (char *) ttyname(STDOUT_FD)) != NULL
+ && fstat(STDOUT_FD, &sbuf) == 0))
+ && !(func == TMD_RESET && saved_mode < 0)){
+ new_mode = (func == TMD_RESET)
+ ? saved_mode
+ : (func == TMD_CLEAR)
+ ? (sbuf.st_mode & ~mode)
+ : (sbuf.st_mode | mode);
+ /* assign tty new mode */
+ if(chmod(tty_name, new_mode) == 0){
+ if(func == TMD_RESET) /* forget we knew */
+ saved_mode = -1;
+ else if(saved_mode < 0)
+ saved_mode = sbuf.st_mode; /* remember original */
+ }
+ }
+}
+
+
+
+/*----------------------------------------------------------------------
+ End use of the tty, put it back into it's normal mode (UNIX)
+
+ Args: ps -- struct pine
+
+ Result: tty driver mode change.
+ ----------------------------------------------------------------------*/
+void
+end_tty_driver(ps)
+ struct pine *ps;
+{
+ ps = ps; /* get rid of unused parameter warning */
+
+#ifdef MOUSE
+ end_mouse();
+#endif /* MOUSE */
+ fflush(stdout);
+ dprint(2, (debugfile, "about to end_tty_driver\n"));
+
+ tty_chmod(ps, 0, TMD_RESET);
+ PineRaw(0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Actually set up the tty driver (UNIX)
+
+ Args: state -- which state to put it in. 1 means go into raw, 0 out of
+
+ Result: returns 0 if successful and < 0 if not.
+ ----*/
+
+PineRaw(state)
+int state;
+{
+ int result;
+
+ result = Raw(state);
+
+ if(result == 0 && state == 1){
+ /*
+ * Only go into 8 bit mode if we are doing something other
+ * than plain ASCII. This will save the folks that have
+ * their parity on their serial lines wrong thr trouble of
+ * getting it right
+ */
+ if(ps_global->VAR_CHAR_SET && ps_global->VAR_CHAR_SET[0] &&
+ strucmp(ps_global->VAR_CHAR_SET, "us-ascii"))
+ bit_strip_off();
+
+#ifdef DEBUG
+ if(debug < 9) /* only on if full debugging set */
+#endif
+ quit_char_off();
+ ps_global->low_speed = ttisslow();
+ crlf_proc(0);
+ xonxoff_proc(F_ON(F_PRESERVE_START_STOP, ps_global));
+ }
+
+ return(result);
+}
+
+
+#ifdef RESIZING
+jmp_buf winch_state;
+int winch_occured = 0;
+int ready_for_winch = 0;
+#endif
+
+/*----------------------------------------------------------------------
+ This checks whether or not a character (UNIX)
+ is ready to be read, or it times out.
+
+ Args: time_out -- number of seconds before it will timeout
+
+ Result: Returns a NO_OP_IDLE or a NO_OP_COMMAND if the timeout expires
+ before input is available, or a KEY_RESIZE if a resize event
+ occurs, or READY_TO_READ if input is available before the timeout.
+ ----*/
+int
+check_for_timeout(time_out)
+ int time_out;
+{
+ int res;
+
+ fflush(stdout);
+
+#ifdef RESIZING
+ if(!winch_occured){
+ if(setjmp(winch_state) != 0){
+ winch_occured = 1;
+ ready_for_winch = 0;
+
+ /*
+ * Need to unblock signal after longjmp from handler, because
+ * signal is normally unblocked upon routine exit from the handler.
+ */
+ our_sigunblock(SIGWINCH);
+ }
+ else
+ ready_for_winch = 1;
+ }
+
+ if(winch_occured){
+ winch_occured = ready_for_winch = 0;
+ fix_windsize(ps_global);
+ return(KEY_RESIZE);
+ }
+#endif /* RESIZING */
+
+ switch(res = input_ready(time_out)){
+ case BAIL_OUT:
+ read_bail(); /* non-tragic exit */
+ /* NO RETURN */
+
+ case PANIC_NOW:
+ panic1("Select error: %s\n", error_description(errno));
+ /* NO RETURN */
+
+ case READ_INTR:
+ res = NO_OP_COMMAND;
+ /* fall through */
+
+ case NO_OP_IDLE:
+ case NO_OP_COMMAND:
+ case READY_TO_READ:
+#ifdef RESIZING
+ ready_for_winch = 0;
+#endif
+ return(res);
+ }
+}
+
+
+
+/*----------------------------------------------------------------------
+ Read input characters with lots of processing for arrow keys and such (UNIX)
+
+ Args: time_out -- The timeout to for the reads
+
+ Result: returns the character read. Possible special chars.
+
+ This deals with function and arrow keys as well.
+
+ The idea is that this routine handles all escape codes so it done in
+ only one place. Especially so the back arrow key can work when entering
+ things on a line. Also so all function keys can be disabled and not
+ cause weird things to happen.
+ ---*/
+int
+read_char(time_out)
+ int time_out;
+{
+ int ch, status, cc;
+
+ /* Get input from initial-keystrokes */
+ if(process_config_input(&ch))
+ return(ch);
+
+ /*
+ * We only check for timeouts at the start of read_char, not in the
+ * middle of escape sequences.
+ */
+ if((ch = check_for_timeout(time_out)) != READY_TO_READ)
+ goto done;
+
+ ps_global->time_of_last_input = time((time_t *)0);
+
+ switch(status = kbseq(pine_simple_ttgetc, key_recorder, read_bail, &ch)){
+ case KEY_DOUBLE_ESC:
+ /*
+ * Special hack to get around comm devices eating control characters.
+ */
+ if(check_for_timeout(5) != READY_TO_READ){
+ ch = KEY_JUNK; /* user typed ESC ESC, then stopped */
+ goto done;
+ }
+ else
+ ch = READ_A_CHAR();
+
+ ch &= 0x7f;
+ if(isdigit((unsigned char)ch)){
+ int n = 0, i = ch - '0';
+
+ if(i < 0 || i > 2){
+ ch = KEY_JUNK;
+ goto done; /* bogus literal char value */
+ }
+
+ while(n++ < 2){
+ if(check_for_timeout(5) != READY_TO_READ
+ || (!isdigit((unsigned char) (ch = READ_A_CHAR()))
+ || (n == 1 && i == 2 && ch > '5')
+ || (n == 2 && i == 25 && ch > '5'))){
+ ch = KEY_JUNK; /* user typed ESC ESC #, stopped */
+ goto done;
+ }
+
+ i = (i * 10) + (ch - '0');
+ }
+
+ ch = i;
+ }
+ else{
+ if(islower((unsigned char)ch)) /* canonicalize if alpha */
+ ch = toupper((unsigned char)ch);
+
+ ch = (isalpha((unsigned char)ch) || ch == '@'
+ || (ch >= '[' && ch <= '_'))
+ ? ctrl(ch) : ((ch == SPACE) ? ctrl('@'): ch);
+ }
+
+ goto done;
+
+#ifdef MOUSE
+ case KEY_XTERM_MOUSE:
+ if(mouseexist()){
+ /*
+ * Special hack to get mouse events from an xterm.
+ * Get the details, then pass it past the keymenu event
+ * handler, and then to the installed handler if there
+ * is one...
+ */
+ static int down = 0;
+ int x, y, button;
+ unsigned cmd;
+
+ clear_cursor_pos();
+ button = READ_A_CHAR() & 0x03;
+
+ x = READ_A_CHAR() - '!';
+ y = READ_A_CHAR() - '!';
+
+ ch = NO_OP_COMMAND;
+ if(button == 0){ /* xterm button 1 down */
+ down = 1;
+ if(checkmouse(&cmd, 1, x, y))
+ ch = (int)cmd;
+ }
+ else if (down && button == 3){
+ down = 0;
+ if(checkmouse(&cmd, 0, x, y))
+ ch = (int)cmd;
+ }
+
+ goto done;
+ }
+
+ break;
+#endif /* MOUSE */
+
+ case KEY_UP :
+ case KEY_DOWN :
+ case KEY_RIGHT :
+ case KEY_LEFT :
+ case KEY_PGUP :
+ case KEY_PGDN :
+ case KEY_HOME :
+ case KEY_END :
+ case KEY_DEL :
+ case PF1 :
+ case PF2 :
+ case PF3 :
+ case PF4 :
+ case PF5 :
+ case PF6 :
+ case PF7 :
+ case PF8 :
+ case PF9 :
+ case PF10 :
+ case PF11 :
+ case PF12 :
+ dprint(9, (debugfile, "Read char returning: %d %s\n",
+ status, pretty_command(status)));
+ return(status);
+
+ case KEY_SWALLOW_Z:
+ status = KEY_JUNK;
+ case KEY_SWAL_UP:
+ case KEY_SWAL_DOWN:
+ case KEY_SWAL_LEFT:
+ case KEY_SWAL_RIGHT:
+ do
+ if(check_for_timeout(2) != READY_TO_READ){
+ status = KEY_JUNK;
+ break;
+ }
+ while(!strchr("~qz", READ_A_CHAR()));
+ ch = (status == KEY_JUNK) ? status : status - (KEY_SWAL_UP - KEY_UP);
+ goto done;
+
+ case KEY_KERMIT:
+ do{
+ cc = ch;
+ if(check_for_timeout(2) != READY_TO_READ){
+ status = KEY_JUNK;
+ break;
+ }
+ else
+ ch = READ_A_CHAR();
+ }while(cc != '\033' && ch != '\\');
+
+ ch = KEY_JUNK;
+ goto done;
+
+ case BADESC:
+ ch = KEY_JUNK;
+ goto done;
+
+ case 0: /* regular character */
+ default:
+ /*
+ * we used to strip (ch &= 0x7f;), but this seems much cleaner
+ * in the face of line noise and has the benefit of making it
+ * tougher to emit mistakenly labeled MIME...
+ */
+ if((ch & 0x80) && (!ps_global->VAR_CHAR_SET
+ || !strucmp(ps_global->VAR_CHAR_SET, "US-ASCII"))){
+ dprint(9, (debugfile, "Read char returning: %d %s\n",
+ status, pretty_command(status)));
+ return(KEY_JUNK);
+ }
+ else if(ch == ctrl('Z')){
+ dprint(9, (debugfile, "Read char calling do_suspend\n"));
+ return(do_suspend());
+ }
+
+
+ done:
+ dprint(9, (debugfile, "Read char returning: %d %s\n",
+ ch, pretty_command(ch)));
+ return(ch);
+ }
+}
+
+
+/*----------------------------------------------------------------------
+ Reading input somehow failed and we need to shutdown now
+
+ Args: none
+
+ Result: pine exits
+
+ ---*/
+void
+read_bail()
+{
+ end_signals(1);
+ if(ps_global->inbox_stream){
+ if(ps_global->inbox_stream == ps_global->mail_stream)
+ ps_global->mail_stream = NULL;
+
+ if(!ps_global->inbox_stream->lock) /* shouldn't be... */
+ pine_close_stream(ps_global->inbox_stream);
+ }
+
+ if(ps_global->mail_stream && !ps_global->mail_stream->lock)
+ pine_close_stream(ps_global->mail_stream);
+
+ end_keyboard(F_ON(F_USE_FK,ps_global));
+ end_tty_driver(ps_global);
+ if(filter_data_file(0))
+ unlink(filter_data_file(0));
+
+ exit(0);
+}
+
+
+int
+pine_simple_ttgetc(fi, fv)
+ int (*fi)();
+ void (*fv)();
+{
+ int ch;
+
+#ifdef RESIZING
+ if(!winch_occured){
+ if(setjmp(winch_state) != 0){
+ winch_occured = 1;
+ ready_for_winch = 0;
+
+ /*
+ * Need to unblock signal after longjmp from handler, because
+ * signal is normally unblocked upon routine exit from the handler.
+ */
+ our_sigunblock(SIGWINCH);
+ }
+ else
+ ready_for_winch = 1;
+ }
+
+ if(winch_occured){
+ winch_occured = ready_for_winch = 0;
+ fix_windsize(ps_global);
+ return(KEY_RESIZE);
+ }
+#endif /* RESIZING */
+
+ ch = simple_ttgetc(fi, fv);
+
+#ifdef RESIZING
+ ready_for_winch = 0;
+#endif
+
+ return(ch);
+}
+
+
+
+extern char term_name[];
+/* -------------------------------------------------------------------
+ Set up the keyboard -- usually enable some function keys (UNIX)
+
+ Args: struct pine
+
+So far all we do here is turn on keypad mode for certain terminals
+
+Hack for NCSA telnet on an IBM PC to put the keypad in the right mode.
+This is the same for a vtXXX terminal or [zh][12]9's which we have
+a lot of at UW
+ ----*/
+void
+init_keyboard(use_fkeys)
+ int use_fkeys;
+{
+ if(use_fkeys && (!strucmp(term_name,"vt102")
+ || !strucmp(term_name,"vt100")))
+ printf("\033\133\071\071\150");
+}
+
+
+
+/*----------------------------------------------------------------------
+ Clear keyboard, usually disable some function keys (UNIX)
+
+ Args: pine state (terminal type)
+
+ Result: keyboard state reset
+ ----*/
+void
+end_keyboard(use_fkeys)
+ int use_fkeys;
+{
+ if(use_fkeys && (!strcmp(term_name, "vt102")
+ || !strcmp(term_name, "vt100"))){
+ printf("\033\133\071\071\154");
+ fflush(stdout);
+ }
+}
+
+
+#ifdef _WINDOWS
+#line 3 "osdep/termin.gen"
+
+static int g_mc_row, g_mc_col;
+
+int pcpine_oe_cursor PROTO((int, long));
+#endif
+
+
+/*
+ * Generic tty input routines
+ */
+
+
+/*----------------------------------------------------------------------
+ Read a character from keyboard with timeout
+ Input: none
+
+ Result: Returns command read via read_char
+ Times out and returns a null command every so often
+
+ Calculates the timeout for the read, and does a few other house keeping
+things. The duration of the timeout is set in pine.c.
+ ----------------------------------------------------------------------*/
+int
+read_command()
+{
+ int ch, tm = 0;
+ long dtime;
+
+ cancel_busy_alarm(-1);
+ tm = (messages_queued(&dtime) > 1) ? (int)dtime : timeo;
+
+ /*
+ * Before we sniff at the input queue, make sure no external event's
+ * changed our picture of the message sequence mapping. If so,
+ * recalculate the dang thing and run thru whatever processing loop
+ * we're in again...
+ */
+ if(ps_global->expunge_count){
+ q_status_message3(SM_ORDER, 3, 3,
+ "%s message%s expunged from folder \"%s\"",
+ long2string(ps_global->expunge_count),
+ plural(ps_global->expunge_count),
+ pretty_fn(ps_global->cur_folder));
+ ps_global->expunge_count = 0L;
+ display_message('x');
+ }
+
+ if(ps_global->inbox_expunge_count){
+ q_status_message3(SM_ORDER, 3, 3,
+ "%s message%s expunged from folder \"%s\"",
+ long2string(ps_global->inbox_expunge_count),
+ plural(ps_global->inbox_expunge_count),
+ pretty_fn(ps_global->inbox_name));
+ ps_global->inbox_expunge_count = 0L;
+ display_message('x');
+ }
+
+ if(ps_global->mail_box_changed && ps_global->new_mail_count){
+ dprint(2, (debugfile, "Noticed %ld new msgs! \n",
+ ps_global->new_mail_count));
+ return(NO_OP_COMMAND); /* cycle thru so caller can update */
+ }
+
+ ch = read_char(tm);
+ dprint(9, (debugfile, "Read command returning: %d %s\n", ch,
+ pretty_command(ch)));
+ if(ch != NO_OP_COMMAND && ch != NO_OP_IDLE && ch != KEY_RESIZE)
+ zero_new_mail_count();
+
+#ifdef BACKGROUND_POST
+ /*
+ * Any expired children to report on?
+ */
+ if(ps_global->post && ps_global->post->pid == 0){
+ int winner = 0;
+
+ if(ps_global->post->status < 0){
+ q_status_message(SM_ORDER | SM_DING, 3, 3, "Abysmal failure!");
+ }
+ else{
+ (void) pine_send_status(ps_global->post->status,
+ ps_global->post->fcc, tmp_20k_buf,
+ &winner);
+ q_status_message(SM_ORDER | (winner ? 0 : SM_DING), 3, 3,
+ tmp_20k_buf);
+
+ }
+
+ if(!winner)
+ q_status_message(SM_ORDER, 0, 3,
+ "Re-send via \"Compose\" then \"Yes\" to \"Continue INTERRUPTED?\"");
+
+ if(ps_global->post->fcc)
+ fs_give((void **) &ps_global->post->fcc);
+
+ fs_give((void **) &ps_global->post);
+ }
+#endif
+
+ return(ch);
+}
+
+
+
+
+/*
+ *
+ */
+static struct display_line {
+ int row, col; /* where display starts */
+ int dlen; /* length of display line */
+ char *dl; /* line on display */
+ char *vl; /* virtual line */
+ int vlen; /* length of virtual line */
+ int vused; /* length of virtual line in use */
+ int vbase; /* first virtual char on display */
+} dline;
+
+
+
+static struct key oe_keys[] =
+ {{"^G","Help",KS_SCREENHELP}, {"^C","Cancel",KS_NONE},
+ {"^T","xxx",KS_NONE}, {"Ret","Accept",KS_NONE},
+ {NULL,NULL,KS_NONE}, {NULL,NULL,KS_NONE},
+ {NULL,NULL,KS_NONE}, {NULL,NULL,KS_NONE},
+ {NULL,NULL,KS_NONE}, {NULL,NULL,KS_NONE},
+ {NULL,NULL,KS_NONE}, {NULL,NULL,KS_NONE}};
+INST_KEY_MENU(oe_keymenu, oe_keys);
+#define OE_HELP_KEY 0
+#define OE_CANCEL_KEY 1
+#define OE_CTRL_T_KEY 2
+#define OE_ENTER_KEY 3
+
+
+/*----------------------------------------------------------------------
+ Prompt user for a string in status line with various options
+
+ Args: string -- the buffer result is returned in, and original string (if
+ any) is passed in.
+ y_base -- y position on screen to start on. 0,0 is upper left
+ negative numbers start from bottom
+ x_base -- column position on screen to start on. 0,0 is upper left
+ field_len -- Maximum length of string to accept
+ prompt -- The string to prompt with
+ escape_list -- pointer to array of ESCKEY_S's. input chars matching
+ those in list return value from list.
+ help -- Arrary of strings for help text in bottom screen lines
+ flags -- pointer (because some are return values) to flags
+ OE_USER_MODIFIED - Set on return if user modified buffer
+ OE_DISALLOW_CANCEL - No cancel in menu.
+ OE_DISALLOW_HELP - No help in menu.
+ OE_KEEP_TRAILING_SPACE - Allow trailing space.
+ OE_SEQ_SENSITIVE - Caller is sensitive to sequence
+ number changes.
+ OE_APPEND_CURRENT - String should not be truncated
+ before accepting user input.
+ OE_PASSWD - Don't echo on screen.
+
+ Result: editing input string
+ returns -1 unexpected errors
+ returns 0 normal entry typed (editing and return or PF2)
+ returns 1 typed ^C or PF2 (cancel)
+ returns 3 typed ^G or PF1 (help)
+ returns 4 typed ^L for a screen redraw
+
+ WARNING: Care is required with regard to the escape_list processing.
+ The passed array is terminated with an entry that has ch = -1.
+ Function key labels and key strokes need to be setup externally!
+ Traditionally, a return value of 2 is used for ^T escapes.
+
+ Unless in escape_list, tabs are trapped by isprint().
+This allows near full weemacs style editing in the line
+ ^A beginning of line
+ ^E End of line
+ ^R Redraw line
+ ^G Help
+ ^F forward
+ ^B backward
+ ^D delete
+----------------------------------------------------------------------*/
+
+optionally_enter(string, y_base, x_base, field_len,
+ prompt, escape_list, help, flags)
+ char *string, *prompt;
+ ESCKEY_S *escape_list;
+ HelpType help;
+ int x_base, y_base, field_len;
+ int *flags;
+{
+ register char *s2;
+ register int field_pos;
+ int i, j, return_v, cols, ch, prompt_len, too_thin,
+ real_y_base, km_popped, passwd;
+ char *saved_original = NULL, *k, *kb;
+ char *kill_buffer = NULL;
+ char **help_text;
+ int fkey_table[12];
+ struct key_menu *km;
+ bitmap_t bitmap;
+ COLOR_PAIR *lastc = NULL, *promptc = NULL;
+ struct variable *vars = ps_global->vars;
+#ifdef _WINDOWS
+ int cursor_shown;
+#endif
+
+ dprint(5, (debugfile, "=== optionally_enter called ===\n"));
+ dprint(9, (debugfile, "string:\"%s\" y:%d x:%d length: %d append: %d\n",
+ string, x_base, y_base, field_len,
+ (flags && *flags & OE_APPEND_CURRENT)));
+ dprint(9, (debugfile, "passwd:%d prompt:\"%s\" label:\"%s\"\n",
+ (flags && *flags & OE_PASSWD),
+ prompt, (escape_list && escape_list[0].ch != -1)
+ ? escape_list[0].label: ""));
+
+#ifdef _WINDOWS
+ if (mswin_usedialog ()) {
+ MDlgButton button_list[12];
+ int b;
+ int i;
+
+ memset (&button_list, 0, sizeof (MDlgButton) * 12);
+ b = 0;
+ for (i = 0; escape_list && escape_list[i].ch != -1 && i < 11; ++i) {
+ if (escape_list[i].name != NULL
+ && escape_list[i].ch > 0 && escape_list[i].ch < 256) {
+ button_list[b].ch = escape_list[i].ch;
+ button_list[b].rval = escape_list[i].rval;
+ button_list[b].name = escape_list[i].name;
+ button_list[b].label = escape_list[i].label;
+ ++b;
+ }
+ }
+ button_list[b].ch = -1;
+
+
+ help_text = get_help_text (help);
+ return_v = mswin_dialog (prompt, string, field_len,
+ (flags && *flags & OE_APPEND_CURRENT),
+ (flags && *flags & OE_PASSWD),
+ button_list,
+ help_text, flags ? *flags : OE_NONE);
+ free_list_array (&help_text);
+ return (return_v);
+ }
+#endif
+
+ suspend_busy_alarm();
+ cols = ps_global->ttyo->screen_cols;
+ prompt_len = strlen(prompt);
+ too_thin = 0;
+ km_popped = 0;
+ if(y_base > 0) {
+ real_y_base = y_base;
+ } else {
+ real_y_base= y_base + ps_global->ttyo->screen_rows;
+ if(real_y_base < 2)
+ real_y_base = ps_global->ttyo->screen_rows;
+ }
+
+ flush_ordered_messages();
+ mark_status_dirty();
+ if(flags && *flags & OE_APPEND_CURRENT) /* save a copy in case of cancel */
+ saved_original = cpystr(string);
+
+ /*
+ * build the function key mapping table, skipping predefined keys...
+ */
+ memset(fkey_table, NO_OP_COMMAND, 12 * sizeof(int));
+ for(i = 0, j = 0; escape_list && escape_list[i].ch != -1 && i+j < 12; i++){
+ if(i+j == OE_HELP_KEY)
+ j++;
+
+ if(i+j == OE_CANCEL_KEY)
+ j++;
+
+ if(i+j == OE_ENTER_KEY)
+ j++;
+
+ fkey_table[i+j] = escape_list[i].ch;
+ }
+
+#if defined(HELPFILE)
+ help_text = (help != NO_HELP) ? get_help_text(help) : (char **)NULL;
+#else
+ help_text = help;
+#endif
+ if(help_text){ /*---- Show help text -----*/
+ int width = ps_global->ttyo->screen_cols - x_base;
+
+ if(FOOTER_ROWS(ps_global) == 1){
+ km_popped++;
+ FOOTER_ROWS(ps_global) = 3;
+ clearfooter(ps_global);
+
+ y_base = -3;
+ real_y_base = y_base + ps_global->ttyo->screen_rows;
+ }
+
+ for(j = 0; j < 2 && help_text[j]; j++){
+ MoveCursor(real_y_base + 1 + j, x_base);
+ CleartoEOLN();
+
+ if(width < strlen(help_text[j])){
+ char *tmp = fs_get((width + 1) * sizeof(char));
+ strncpy(tmp, help_text[j], width);
+ tmp[width] = '\0';
+ PutLine0(real_y_base + 1 + j, x_base, tmp);
+ fs_give((void **)&tmp);
+ }
+ else
+ PutLine0(real_y_base + 1 + j, x_base, help_text[j]);
+ }
+
+#if defined(HELPFILE)
+ free_list_array(&help_text);
+#endif
+
+ } else {
+ clrbitmap(bitmap);
+ clrbitmap((km = &oe_keymenu)->bitmap); /* force formatting */
+ if(!(flags && (*flags) & OE_DISALLOW_HELP))
+ setbitn(OE_HELP_KEY, bitmap);
+
+ setbitn(OE_ENTER_KEY, bitmap);
+ if(!(flags && (*flags) & OE_DISALLOW_CANCEL))
+ setbitn(OE_CANCEL_KEY, bitmap);
+
+ setbitn(OE_CTRL_T_KEY, bitmap);
+
+ /*---- Show the usual possible keys ----*/
+ for(i=0,j=0; escape_list && escape_list[i].ch != -1 && i+j < 12; i++){
+ if(i+j == OE_HELP_KEY)
+ j++;
+
+ if(i+j == OE_CANCEL_KEY)
+ j++;
+
+ if(i+j == OE_ENTER_KEY)
+ j++;
+
+ oe_keymenu.keys[i+j].label = escape_list[i].label;
+ oe_keymenu.keys[i+j].name = escape_list[i].name;
+ setbitn(i+j, bitmap);
+ }
+
+ for(i = i+j; i < 12; i++)
+ if(!(i == OE_HELP_KEY || i == OE_ENTER_KEY || i == OE_CANCEL_KEY))
+ oe_keymenu.keys[i].name = NULL;
+
+ draw_keymenu(km, bitmap, cols, 1-FOOTER_ROWS(ps_global), 0, FirstMenu);
+ }
+
+ if(pico_usingcolor() && VAR_PROMPT_FORE_COLOR &&
+ VAR_PROMPT_BACK_COLOR &&
+ pico_is_good_color(VAR_PROMPT_FORE_COLOR) &&
+ pico_is_good_color(VAR_PROMPT_BACK_COLOR)){
+ lastc = pico_get_cur_color();
+ if(lastc){
+ promptc = new_color_pair(VAR_PROMPT_FORE_COLOR,
+ VAR_PROMPT_BACK_COLOR);
+ (void)pico_set_colorp(promptc, PSC_NONE);
+ }
+ }
+ else
+ StartInverse();
+
+ /*
+ * if display length isn't wide enough to support input,
+ * shorten up the prompt...
+ */
+ if((dline.dlen = cols - (x_base + prompt_len + 1)) < 5){
+ prompt_len += (dline.dlen - 5); /* adding negative numbers */
+ prompt -= (dline.dlen - 5); /* subtracting negative numbers */
+ dline.dlen = 5;
+ }
+
+ dline.dl = fs_get((size_t)dline.dlen + 1);
+ memset((void *)dline.dl, 0, (size_t)(dline.dlen + 1) * sizeof(char));
+ dline.row = real_y_base;
+ dline.col = x_base + prompt_len;
+ dline.vl = string;
+ dline.vlen = --field_len; /* -1 for terminating NULL */
+ dline.vbase = field_pos = 0;
+
+#ifdef _WINDOWS
+ cursor_shown = mswin_showcaret(1);
+#endif
+
+ PutLine0(real_y_base, x_base, prompt);
+ /* make sure passed in string is shorter than field_len */
+ /* and adjust field_pos.. */
+
+ while((flags && *flags & OE_APPEND_CURRENT) &&
+ field_pos < field_len && string[field_pos] != '\0')
+ field_pos++;
+
+ string[field_pos] = '\0';
+ dline.vused = (int)(&string[field_pos] - string);
+ passwd = (flags && *flags & OE_PASSWD) ? 1 : 0;
+ line_paint(field_pos, &passwd);
+
+ /*----------------------------------------------------------------------
+ The main loop
+
+ here field_pos is the position in the string.
+ s always points to where we are in the string.
+ loops until someone sets the return_v.
+ ----------------------------------------------------------------------*/
+ return_v = -10;
+
+ while(return_v == -10) {
+
+#ifdef MOUSE
+ mouse_in_content(KEY_MOUSE, -1, -1, 0x5, 0);
+ register_mfunc(mouse_in_content,
+ real_y_base, x_base + prompt_len,
+ real_y_base, ps_global->ttyo->screen_cols);
+#endif
+#ifdef _WINDOWS
+ mswin_allowpaste(MSWIN_PASTE_LINE);
+ g_mc_row = real_y_base;
+ g_mc_col = x_base + prompt_len;
+ mswin_mousetrackcallback(pcpine_oe_cursor);
+#endif
+
+ /* Timeout 10 min to keep imap mail stream alive */
+ ch = read_char(600);
+
+#ifdef MOUSE
+ clear_mfunc(mouse_in_content);
+#endif
+#ifdef _WINDOWS
+ mswin_allowpaste(MSWIN_PASTE_DISABLE);
+ mswin_mousetrackcallback(NULL);
+#endif
+
+ /*
+ * Don't want to intercept all characters if typing in passwd.
+ * We select an ad hoc set that we will catch and let the rest
+ * through. We would have caught the set below in the big switch
+ * but we skip the switch instead. Still catch things like ^K,
+ * DELETE, ^C, RETURN.
+ */
+ if(passwd)
+ switch(ch) {
+ case ctrl('F'):
+ case KEY_RIGHT:
+ case ctrl('B'):
+ case KEY_LEFT:
+ case ctrl('U'):
+ case ctrl('A'):
+ case KEY_HOME:
+ case ctrl('E'):
+ case KEY_END:
+ case TAB:
+ goto ok_for_passwd;
+ }
+
+ if(too_thin && ch != KEY_RESIZE && ch != ctrl('Z') && ch != ctrl('C'))
+ goto bleep;
+
+ switch(ch) {
+
+ /*--------------- KEY RIGHT ---------------*/
+ case ctrl('F'):
+ case KEY_RIGHT:
+ if(field_pos >= field_len || string[field_pos] == '\0')
+ goto bleep;
+
+ line_paint(++field_pos, &passwd);
+ break;
+
+ /*--------------- KEY LEFT ---------------*/
+ case ctrl('B'):
+ case KEY_LEFT:
+ if(field_pos <= 0)
+ goto bleep;
+
+ line_paint(--field_pos, &passwd);
+ break;
+
+ /*-------------------- WORD SKIP --------------------*/
+ case ctrl('@'):
+ /*
+ * Note: read_char *can* return NO_OP_COMMAND which is
+ * the def'd with the same value as ^@ (NULL), BUT since
+ * read_char has a big timeout (>25 secs) it won't.
+ */
+
+ /* skip thru current word */
+ while(string[field_pos]
+ && isalnum((unsigned char) string[field_pos]))
+ field_pos++;
+
+ /* skip thru current white space to next word */
+ while(string[field_pos]
+ && !isalnum((unsigned char) string[field_pos]))
+ field_pos++;
+
+ line_paint(field_pos, &passwd);
+ break;
+
+ /*-------------------- RETURN --------------------*/
+ case PF4:
+ if(F_OFF(F_USE_FK,ps_global)) goto bleep;
+ case ctrl('J'):
+ case ctrl('M'):
+ return_v = 0;
+ break;
+
+ /*-------------------- Destructive backspace --------------------*/
+ case '\177': /* DEL */
+ case ctrl('H'):
+ /* Try and do this with by telling the terminal to delete a
+ a character. If that fails, then repaint the rest of the
+ line, acheiving the same much less efficiently
+ */
+ if(field_pos <= 0)
+ goto bleep;
+
+ field_pos--;
+ /* drop thru to pull line back ... */
+
+ /*-------------------- Delete char --------------------*/
+ case ctrl('D'):
+ case KEY_DEL:
+ if(field_pos >= field_len || !string[field_pos])
+ goto bleep;
+
+ dline.vused--;
+ for(s2 = &string[field_pos]; *s2 != '\0'; s2++)
+ *s2 = s2[1];
+
+ *s2 = '\0'; /* Copy last NULL */
+ line_paint(field_pos, &passwd);
+ if(flags) /* record change if requested */
+ *flags |= OE_USER_MODIFIED;
+
+ break;
+
+
+ /*--------------- Kill line -----------------*/
+ case ctrl('K'):
+ if(kill_buffer != NULL)
+ fs_give((void **)&kill_buffer);
+
+ if(field_pos != 0 || string[0]){
+ if(!passwd && F_ON(F_DEL_FROM_DOT, ps_global))
+ dline.vused -= strlen(&string[i = field_pos]);
+ else
+ dline.vused = i = 0;
+
+ kill_buffer = cpystr(&string[field_pos = i]);
+ string[field_pos] = '\0';
+ line_paint(field_pos, &passwd);
+ if(flags) /* record change if requested */
+ *flags |= OE_USER_MODIFIED;
+
+ }
+
+ break;
+
+ /*------------------- Undelete line --------------------*/
+ case ctrl('U'):
+ if(kill_buffer == NULL)
+ goto bleep;
+
+ /* Make string so it will fit */
+ kb = cpystr(kill_buffer);
+ dprint(2, (debugfile,
+ "Undelete: %d %d\n", strlen(string), field_len));
+ if(strlen(kb) + strlen(string) > field_len)
+ kb[field_len - strlen(string)] = '\0';
+ dprint(2, (debugfile,
+ "Undelete: %d %d\n", field_len - strlen(string),
+ strlen(kb)));
+
+ if(string[field_pos] == '\0') {
+ /*--- adding to the end of the string ----*/
+ for(k = kb; *k; k++)
+ string[field_pos++] = *k;
+
+ string[field_pos] = '\0';
+ } else {
+ goto bleep;
+ /* To lazy to do insert in middle of string now */
+ }
+
+ if(*kb && flags) /* record change if requested */
+ *flags |= OE_USER_MODIFIED;
+
+ dline.vused = strlen(string);
+ fs_give((void **)&kb);
+ line_paint(field_pos, &passwd);
+ break;
+
+
+ /*-------------------- Interrupt --------------------*/
+ case ctrl('C'): /* ^C */
+ if(F_ON(F_USE_FK,ps_global)
+ || (flags && ((*flags) & OE_DISALLOW_CANCEL)))
+ goto bleep;
+
+ goto cancel;
+
+ case PF2:
+ if(F_OFF(F_USE_FK,ps_global)
+ || (flags && ((*flags) & OE_DISALLOW_CANCEL)))
+ goto bleep;
+
+ cancel:
+ return_v = 1;
+ if(saved_original)
+ strcpy(string, saved_original);
+
+ break;
+
+
+ case ctrl('A'):
+ case KEY_HOME:
+ /*-------------------- Start of line -------------*/
+ line_paint(field_pos = 0, &passwd);
+ break;
+
+
+ case ctrl('E'):
+ case KEY_END:
+ /*-------------------- End of line ---------------*/
+ line_paint(field_pos = dline.vused, &passwd);
+ break;
+
+
+ /*-------------------- Help --------------------*/
+ case ctrl('G') :
+ case PF1:
+ if(flags && ((*flags) & OE_DISALLOW_HELP))
+ goto bleep;
+ else if(FOOTER_ROWS(ps_global) == 1 && km_popped == 0){
+ km_popped++;
+ FOOTER_ROWS(ps_global) = 3;
+ clearfooter(ps_global);
+ if(lastc)
+ (void)pico_set_colorp(lastc, PSC_NONE);
+ else
+ EndInverse();
+
+ draw_keymenu(km, bitmap, cols, 1-FOOTER_ROWS(ps_global),
+ 0, FirstMenu);
+
+ if(promptc)
+ (void)pico_set_colorp(promptc, PSC_NONE);
+ else
+ StartInverse();
+
+ mark_keymenu_dirty();
+ y_base = -3;
+ dline.row = real_y_base = y_base + ps_global->ttyo->screen_rows;
+ PutLine0(real_y_base, x_base, prompt);
+ fs_resize((void **)&dline.dl, (size_t)dline.dlen + 1);
+ memset((void *)dline.dl, 0, (size_t)(dline.dlen + 1));
+ line_paint(field_pos, &passwd);
+ break;
+ }
+
+ if(FOOTER_ROWS(ps_global) > 1){
+ mark_keymenu_dirty();
+ return_v = 3;
+ }
+ else
+ goto bleep;
+
+ break;
+
+#ifdef MOUSE
+ case KEY_MOUSE :
+ {
+ MOUSEPRESS mp;
+
+ mouse_get_last (NULL, &mp);
+
+ /* The clicked line have anything special on it? */
+ switch(mp.button){
+ case M_BUTTON_LEFT : /* position cursor */
+ mp.col -= x_base + prompt_len; /* normalize column */
+ if(dline.vbase + mp.col <= dline.vused)
+ line_paint(field_pos = dline.vbase + mp.col, &passwd);
+
+ break;
+
+ case M_BUTTON_RIGHT :
+#ifdef _WINDOWS
+ mp.col -= x_base + prompt_len; /* normalize column */
+ if(dline.vbase + mp.col <= dline.vused)
+ line_paint(field_pos = dline.vbase + mp.col, &passwd);
+
+ mswin_allowpaste(MSWIN_PASTE_LINE);
+ mswin_paste_popup();
+ mswin_allowpaste(MSWIN_PASTE_DISABLE);
+ break;
+#endif
+
+ case M_BUTTON_MIDDLE : /* NO-OP for now */
+ default: /* just ignore */
+ break;
+ }
+ }
+
+ break;
+#endif
+
+ case NO_OP_IDLE:
+ /* Keep mail stream alive */
+ i = new_mail(0, 2, NM_DEFER_SORT);
+ if(ps_global->expunge_count &&
+ flags && ((*flags) & OE_SEQ_SENSITIVE))
+ goto cancel;
+
+ if(i < 0){
+ line_paint(field_pos, &passwd);
+ break; /* no changes, get on with life */
+ }
+ /* Else fall into redraw */
+
+ /*-------------------- Redraw --------------------*/
+ case ctrl('L'):
+ /*---------------- re size ----------------*/
+ case KEY_RESIZE:
+
+ dline.row = real_y_base = y_base > 0 ? y_base :
+ y_base + ps_global->ttyo->screen_rows;
+ if(lastc)
+ (void)pico_set_colorp(lastc, PSC_NONE);
+ else
+ EndInverse();
+
+ ClearScreen();
+ redraw_titlebar();
+ if(ps_global->redrawer != (void (*)())NULL)
+ (*ps_global->redrawer)();
+
+ redraw_keymenu();
+ if(promptc)
+ (void)pico_set_colorp(promptc, PSC_NONE);
+ else
+ StartInverse();
+
+ PutLine0(real_y_base, x_base, prompt);
+ cols = ps_global->ttyo->screen_cols;
+ too_thin = 0;
+ if(cols < x_base + prompt_len + 4) {
+ Writechar(BELL, 0);
+ PutLine0(real_y_base, 0, "Screen's too thin. Ouch!");
+ too_thin = 1;
+ } else {
+ dline.col = x_base + prompt_len;
+ dline.dlen = cols - (x_base + prompt_len + 1);
+ fs_resize((void **)&dline.dl, (size_t)dline.dlen + 1);
+ memset((void *)dline.dl, 0, (size_t)(dline.dlen + 1));
+ line_paint(field_pos, &passwd);
+ }
+ fflush(stdout);
+
+ dprint(9, (debugfile,
+ "optionally_enter RESIZE new_cols:%d too_thin: %d\n",
+ cols, too_thin));
+ break;
+
+ case PF3 : /* input to potentially remap */
+ case PF5 :
+ case PF6 :
+ case PF7 :
+ case PF8 :
+ case PF9 :
+ case PF10 :
+ case PF11 :
+ case PF12 :
+ if(F_ON(F_USE_FK,ps_global)
+ && fkey_table[ch - PF1] != NO_OP_COMMAND)
+ ch = fkey_table[ch - PF1]; /* remap function key input */
+
+ default:
+ if(escape_list){ /* in the escape key list? */
+ for(j=0; escape_list[j].ch != -1; j++){
+ if(escape_list[j].ch == ch){
+ return_v = escape_list[j].rval;
+ break;
+ }
+ }
+
+ if(return_v != -10)
+ break;
+ }
+
+ if(iscntrl(ch & 0x7f)){
+ bleep:
+ putc(BELL, stdout);
+ continue;
+ }
+
+ ok_for_passwd:
+ /*--- Insert a character -----*/
+ if(dline.vused >= field_len)
+ goto bleep;
+
+ /*---- extending the length of the string ---*/
+ for(s2 = &string[++dline.vused]; s2 - string > field_pos; s2--)
+ *s2 = *(s2-1);
+
+ string[field_pos++] = ch;
+ line_paint(field_pos, &passwd);
+ if(flags) /* record change if requested */
+ *flags |= OE_USER_MODIFIED;
+
+ } /*---- End of switch on char ----*/
+ }
+
+#ifdef _WINDOWS
+ if(!cursor_shown)
+ mswin_showcaret(0);
+#endif
+
+ fs_give((void **)&dline.dl);
+ if(saved_original)
+ fs_give((void **)&saved_original);
+
+ if(kill_buffer)
+ fs_give((void **)&kill_buffer);
+
+ if (!(flags && (*flags) & OE_KEEP_TRAILING_SPACE))
+ removing_trailing_white_space(string);
+
+ if(lastc){
+ (void)pico_set_colorp(lastc, PSC_NONE);
+ free_color_pair(&lastc);
+ if(promptc)
+ free_color_pair(&promptc);
+ }
+ else
+ EndInverse();
+
+ MoveCursor(real_y_base, x_base); /* Move the cursor to show we're done */
+ fflush(stdout);
+ resume_busy_alarm(0);
+ if(km_popped){
+ FOOTER_ROWS(ps_global) = 1;
+ clearfooter(ps_global);
+ ps_global->mangled_body = 1;
+ }
+
+ return(return_v);
+}
+
+
+/*
+ * line_paint - where the real work of managing what is displayed gets done.
+ * The passwd variable is overloaded: if non-zero, don't
+ * output anything, else only blat blank chars across line
+ * once and use this var to tell us we've already written the
+ * line.
+ */
+void
+line_paint(offset, passwd)
+ int offset; /* current dot offset into line */
+ int *passwd; /* flag to hide display of chars */
+{
+ register char *pfp, *pbp;
+ register char *vfp, *vbp;
+ int extra = 0;
+#define DLEN (dline.vbase + dline.dlen)
+
+ /*
+ * for now just leave line blank, but maybe do '*' for each char later
+ */
+ if(*passwd){
+ if(*passwd > 1)
+ return;
+ else
+ *passwd = 2; /* only blat once */
+
+ extra = 0;
+ MoveCursor(dline.row, dline.col);
+ while(extra++ < dline.dlen)
+ Writechar(' ', 0);
+
+ MoveCursor(dline.row, dline.col);
+ return;
+ }
+
+ /* adjust right margin */
+ while(offset >= DLEN + ((dline.vused > DLEN) ? -1 : 1))
+ dline.vbase += dline.dlen/2;
+
+ /* adjust left margin */
+ while(offset < dline.vbase + ((dline.vbase) ? 2 : 0))
+ dline.vbase = max(dline.vbase - (dline.dlen/2), 0);
+
+ if(dline.vbase){ /* off screen cue left */
+ vfp = &dline.vl[dline.vbase+1];
+ pfp = &dline.dl[1];
+ if(dline.dl[0] != '<'){
+ MoveCursor(dline.row, dline.col);
+ Writechar(dline.dl[0] = '<', 0);
+ }
+ }
+ else{
+ vfp = dline.vl;
+ pfp = dline.dl;
+ if(dline.dl[0] == '<'){
+ MoveCursor(dline.row, dline.col);
+ Writechar(dline.dl[0] = ' ', 0);
+ }
+ }
+
+ if(dline.vused > DLEN){ /* off screen right... */
+ vbp = vfp + (long)(dline.dlen-(dline.vbase ? 2 : 1));
+ pbp = pfp + (long)(dline.dlen-(dline.vbase ? 2 : 1));
+ if(pbp[1] != '>'){
+ MoveCursor(dline.row, dline.col+dline.dlen);
+ Writechar(pbp[1] = '>', 0);
+ }
+ }
+ else{
+ extra = dline.dlen - (dline.vused - dline.vbase);
+ vbp = &dline.vl[max(0, dline.vused-1)];
+ pbp = &dline.dl[dline.dlen];
+ if(pbp[0] == '>'){
+ MoveCursor(dline.row, dline.col+dline.dlen);
+ Writechar(pbp[0] = ' ', 0);
+ }
+ }
+
+ while(*pfp == *vfp && vfp < vbp) /* skip like chars */
+ pfp++, vfp++;
+
+ if(pfp == pbp && *pfp == *vfp){ /* nothing to paint! */
+ MoveCursor(dline.row, dline.col + (offset - dline.vbase));
+ return;
+ }
+
+ /* move backward thru like characters */
+ if(extra){
+ while(extra >= 0 && *pbp == ' ') /* back over spaces */
+ extra--, pbp--;
+
+ while(extra >= 0) /* paint new ones */
+ pbp[-(extra--)] = ' ';
+ }
+
+ if((vbp - vfp) == (pbp - pfp)){ /* space there? */
+ while((*pbp == *vbp) && pbp != pfp) /* skip like chars */
+ pbp--, vbp--;
+ }
+
+ if(pfp != pbp || *pfp != *vfp){ /* anything to paint?*/
+ MoveCursor(dline.row, dline.col + (int)(pfp - dline.dl));
+
+ do
+ Writechar((unsigned char)((vfp <= vbp && *vfp)
+ ? ((*pfp = *vfp++) == TAB) ? ' ' : *pfp
+ : (*pfp = ' ')), 0);
+ while(++pfp <= pbp);
+ }
+
+ MoveCursor(dline.row, dline.col + (offset - dline.vbase));
+}
+
+
+
+/*----------------------------------------------------------------------
+ Check to see if the given command is reasonably valid
+
+ Args: ch -- the character to check
+
+ Result: A valid command is returned, or a well know bad command is returned.
+
+ ---*/
+validatekeys(ch)
+ int ch;
+{
+#ifndef _WINDOWS
+ if(F_ON(F_USE_FK,ps_global)) {
+ if(ch >= 'a' && ch <= 'z')
+ return(KEY_JUNK);
+ } else {
+ if(ch >= PF1 && ch <= PF12)
+ return(KEY_JUNK);
+ }
+#else
+ /*
+ * In windows menu items are bound to a single key command which
+ * gets inserted into the input stream as if the user had typed
+ * that key. But all the menues are bonund to alphakey commands,
+ * not PFkeys. to distinguish between a keyboard command and a
+ * menu command we insert a flag (KEY_MENU_FLAG) into the
+ * command value when setting up the bindings in
+ * configure_menu_items(). Here we strip that flag.
+ */
+ if(F_ON(F_USE_FK,ps_global)) {
+ if(ch >= 'a' && ch <= 'z' && !(ch & KEY_MENU_FLAG))
+ return(KEY_JUNK);
+ ch &= ~ KEY_MENU_FLAG;
+ } else {
+ ch &= ~ KEY_MENU_FLAG;
+ if(ch >= PF1 && ch <= PF12)
+ return(KEY_JUNK);
+ }
+#endif
+
+ return(ch);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Prepend config'd commands to keyboard input
+
+ Args: ch -- pointer to storage for returned command
+
+ Returns: TRUE if we're passing back a useful command, FALSE otherwise
+
+ ---*/
+int
+process_config_input(ch)
+ int *ch;
+{
+ static char firsttime = (char) 1;
+
+ /* commands in config file */
+ if(ps_global->initial_cmds && *ps_global->initial_cmds) {
+ /*
+ * There are a few commands that may require keyboard input before
+ * we enter the main command loop. That input should be interactive,
+ * not from our list of initial keystrokes.
+ */
+ if(ps_global->dont_use_init_cmds)
+ return(0);
+
+ *ch = *ps_global->initial_cmds++;
+ if(!*ps_global->initial_cmds && ps_global->free_initial_cmds){
+ fs_give((void **)&(ps_global->free_initial_cmds));
+ ps_global->initial_cmds = 0;
+ }
+
+ return(1);
+ }
+
+ if(firsttime) {
+ firsttime = 0;
+ if(ps_global->in_init_seq) {
+ ps_global->in_init_seq = 0;
+ ps_global->save_in_init_seq = 0;
+ clear_cursor_pos();
+ F_SET(F_USE_FK,ps_global,ps_global->orig_use_fkeys);
+ /* draw screen */
+ *ch = ctrl('L');
+ return(1);
+ }
+ }
+
+ return(0);
+}
+
+
+#define TAPELEN 256
+static int tape[TAPELEN];
+static long recorded = 0L;
+static short length = 0;
+
+
+/*
+ * record user keystrokes
+ *
+ * Args: ch -- the character to record
+ *
+ * Returns: character recorded
+ */
+int
+key_recorder(ch)
+ int ch;
+{
+ tape[recorded++ % TAPELEN] = ch;
+ if(length < TAPELEN)
+ length++;
+
+ return(ch);
+}
+
+
+/*
+ * playback user keystrokes
+ *
+ * Args: ch -- ignored
+ *
+ * Returns: character played back or -1 to indicate end of tape
+ */
+int
+key_playback(ch)
+ int ch;
+{
+ ch = length ? tape[(recorded + TAPELEN - length--) % TAPELEN] : -1;
+ return(ch);
+}
+
+
+#ifdef _WINDOWS
+int
+pcpine_oe_cursor(col, row)
+ int col;
+ long row;
+{
+ return((row == g_mc_row
+ && col >= g_mc_col
+ && col < ps_global->ttyo->screen_cols)
+ ? MSWIN_CURSOR_IBEAM
+ : MSWIN_CURSOR_ARROW);
+}
+#endif
+
+/*======================================================================
+ Routines for painting the screen
+ - figure out what the terminal type is
+ - deal with screen size changes
+ - save special output sequences
+ - the usual screen clearing, cursor addressing and scrolling
+
+
+ This library gives programs the ability to easily access the
+ termcap information and write screen oriented and raw input
+ programs. The routines can be called as needed, except that
+ to use the cursor / screen routines there must be a call to
+ InitScreen() first. The 'Raw' input routine can be used
+ independently, however. (Elm comment)
+
+ Not sure what the original source of this code was. It got to be
+ here as part of ELM. It has been changed significantly from the
+ ELM version to be more robust in the face of inconsistent terminal
+ autowrap behaviour. Also, the unused functions were removed, it was
+ made to pay attention to the window size, and some code was made nicer
+ (in my opinion anyways). It also outputs the terminal initialization
+ strings and provides for minimal scrolling and detects terminals
+ with out enough capabilities. (Pine comment, 1990)
+
+
+This code used to pay attention to the "am" auto margin and "xn"
+new line glitch fields, but they were so often incorrect because many
+terminals can be configured to do either that we've taken it out. It
+now assumes it dosn't know where the cursor is after outputing in the
+80th column.
+*/
+
+#define PUTLINE_BUFLEN 256
+
+static int _lines, _columns;
+static int _line = FARAWAY;
+static int _col = FARAWAY;
+static int _in_inverse;
+
+
+/*
+ * Internal prototypes
+ */
+static void moveabsolute PROTO((int, int));
+static void CursorUp PROTO((int));
+static void CursorDown PROTO((int));
+static void CursorLeft PROTO((int));
+static void CursorRight PROTO((int));
+
+
+extern char *_clearscreen, *_moveto, *_up, *_down, *_right, *_left,
+ *_setinverse, *_clearinverse,
+ *_cleartoeoln, *_cleartoeos,
+ *_startinsert, *_endinsert, *_insertchar, *_deletechar,
+ *_deleteline, *_insertline,
+ *_scrollregion, *_scrollup, *_scrolldown,
+ *_termcap_init, *_termcap_end;
+extern char term_name[];
+extern int _tlines, _tcolumns, _bce;
+
+static enum {NoScroll,UseScrollRegion,InsertDelete} _scrollmode;
+
+char *tgoto(); /* and the goto stuff */
+
+
+
+/*----------------------------------------------------------------------
+ Initialize the screen for output, set terminal type, etc
+
+ Args: tt -- Pointer to variable to store the tty output structure.
+
+ Result: terminal size is discovered and set in pine state
+ termcap entry is fetched and stored
+ make sure terminal has adequate capabilites
+ evaluate scrolling situation
+ returns status of indicating the state of the screen/termcap entry
+
+ Returns:
+ -1 indicating no terminal name associated with this shell,
+ -2..-n No termcap for this terminal type known
+ -3 Can't open termcap file
+ -4 Terminal not powerful enough - missing clear to eoln or screen
+ or cursor motion
+ ----*/
+int
+config_screen(tt)
+ struct ttyo **tt;
+{
+ struct ttyo *ttyo;
+ int err;
+
+ ttyo = (struct ttyo *)fs_get(sizeof (struct ttyo));
+
+ _line = 0; /* where are we right now?? */
+ _col = 0; /* assume zero, zero... */
+
+ /*
+ * This is an ugly hack to let vtterminalinfo know it's being called
+ * from pine.
+ */
+ Pmaster = (PICO *)1;
+ if(err = vtterminalinfo(F_ON(F_TCAP_WINS, ps_global)))
+ return(err);
+
+ Pmaster = NULL;
+
+ if(_tlines <= 0)
+ _lines = DEFAULT_LINES_ON_TERMINAL;
+ else
+ _lines = _tlines;
+
+ if(_tcolumns <= 0)
+ _columns = DEFAULT_COLUMNS_ON_TERMINAL;
+ else
+ _columns = _tcolumns;
+
+ get_windsize(ttyo);
+
+ ttyo->header_rows = 2;
+ ttyo->footer_rows = 3;
+
+ /*---- Make sure this terminal has the capability.
+ All we need is cursor address, clear line, and
+ reverse video.
+ ---*/
+ if(_moveto == NULL || _cleartoeoln == NULL ||
+ _setinverse == NULL || _clearinverse == NULL) {
+ return(-4);
+ }
+
+ dprint(1, (debugfile, "Terminal type: %s\n", term_name));
+
+ /*------ Figure out scrolling mode -----*/
+ if(_scrollregion != NULL && _scrollregion[0] != '\0' &&
+ _scrollup != NULL && _scrollup[0] != '\0'){
+ _scrollmode = UseScrollRegion;
+ } else if(_insertline != NULL && _insertline[0] != '\0' &&
+ _deleteline != NULL && _deleteline[0] != '\0') {
+ _scrollmode = InsertDelete;
+ } else {
+ _scrollmode = NoScroll;
+ }
+ dprint(7, (debugfile, "Scroll mode: %s\n",
+ _scrollmode==NoScroll ? "No Scroll" :
+ _scrollmode==InsertDelete ? "InsertDelete" : "Scroll Regions"));
+
+ if (!_left) {
+ _left = "\b";
+ }
+
+ *tt = ttyo;
+
+ return(0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Initialize the screen with the termcap string
+ ----*/
+void
+init_screen()
+{
+ if(_termcap_init) /* init using termcap's rule */
+ tputs(_termcap_init, 1, outchar);
+
+ /* and make sure there are no scrolling surprises! */
+ BeginScroll(0, ps_global->ttyo->screen_rows - 1);
+
+ pico_toggle_color(0);
+ switch(ps_global->color_style){
+ case COL_NONE:
+ case COL_TERMDEF:
+ pico_set_color_options(0);
+ break;
+ case COL_ANSI8:
+ pico_set_color_options(COLOR_ANSI8_OPT);
+ break;
+ case COL_ANSI16:
+ pico_set_color_options(COLOR_ANSI16_OPT);
+ break;
+ }
+
+ if(ps_global->color_style != COL_NONE)
+ pico_toggle_color(1);
+
+ /* set colors */
+ if(pico_usingcolor()){
+ if(ps_global->VAR_NORM_FORE_COLOR)
+ pico_nfcolor(ps_global->VAR_NORM_FORE_COLOR);
+
+ if(ps_global->VAR_NORM_BACK_COLOR)
+ pico_nbcolor(ps_global->VAR_NORM_BACK_COLOR);
+
+ if(ps_global->VAR_REV_FORE_COLOR)
+ pico_rfcolor(ps_global->VAR_REV_FORE_COLOR);
+
+ if(ps_global->VAR_REV_BACK_COLOR)
+ pico_rbcolor(ps_global->VAR_REV_BACK_COLOR);
+
+ pico_set_normal_color();
+ }
+
+ /* and make sure icon text starts out consistent */
+ icon_text(NULL);
+ fflush(stdout);
+}
+
+
+
+
+/*----------------------------------------------------------------------
+ Get the current window size
+
+ Args: ttyo -- pointer to structure to store window size in
+
+ NOTE: we don't override the given values unless we know better
+ ----*/
+int
+get_windsize(ttyo)
+struct ttyo *ttyo;
+{
+#ifdef RESIZING
+ struct winsize win;
+
+ /*
+ * Get the window size from the tty driver. If we can't fish it from
+ * stdout (pine's output is directed someplace else), try stdin (which
+ * *must* be associated with the terminal; see init_tty_driver)...
+ */
+ if(ioctl(1, TIOCGWINSZ, &win) >= 0 /* 1 is stdout */
+ || ioctl(0, TIOCGWINSZ, &win) >= 0){ /* 0 is stdin */
+ if(win.ws_row)
+ _lines = min(win.ws_row, MAX_SCREEN_ROWS);
+
+ if(win.ws_col)
+ _columns = min(win.ws_col, MAX_SCREEN_COLS);
+
+ dprint(2, (debugfile, "new win size -----<%d %d>------\n",
+ _lines, _columns));
+ }
+ else
+ /* Depending on the OS, the ioctl() may have failed because
+ of a 0 rows, 0 columns setting. That happens on DYNIX/ptx 1.3
+ (with a kernel patch that happens to involve the negotiation
+ of window size in the telnet streams module.) In this case
+ the error is EINVARG. Leave the default settings. */
+ dprint(1, (debugfile, "ioctl(TIOCWINSZ) failed :%s\n",
+ error_description(errno)));
+#endif
+
+ ttyo->screen_cols = min(_columns, MAX_SCREEN_COLS);
+ ttyo->screen_rows = min(_lines, MAX_SCREEN_ROWS);
+ return(0);
+}
+
+
+/*----------------------------------------------------------------------
+ End use of the screen.
+ Print status message, if any.
+ Flush status messages.
+ ----*/
+void
+end_screen(message)
+ char *message;
+{
+ int footer_rows_was_one = 0;
+
+ dprint(9, (debugfile, "end_screen called\n"));
+
+ if(FOOTER_ROWS(ps_global) == 1){
+ footer_rows_was_one++;
+ FOOTER_ROWS(ps_global) = 3;
+ mark_status_unknown();
+ }
+
+ flush_status_messages(1);
+ blank_keymenu(_lines - 2, 0);
+ MoveCursor(_lines - 2, 0);
+
+ /* unset colors */
+ if(pico_hascolor())
+ pico_endcolor();
+
+ if(_termcap_end != NULL)
+ tputs(_termcap_end, 1, outchar);
+
+ if(message){
+ printf("%s\r\n", message);
+ }
+
+ if(F_ON(F_ENABLE_XTERM_NEWMAIL, ps_global) && getenv("DISPLAY"))
+ icon_text("xterm");
+
+ fflush(stdout);
+
+ if(footer_rows_was_one){
+ FOOTER_ROWS(ps_global) = 1;
+ mark_status_unknown();
+ }
+}
+
+
+
+/*----------------------------------------------------------------------
+ Clear the terminal screen
+
+ Result: The screen is cleared
+ internal cursor position set to 0,0
+ ----*/
+void
+ClearScreen()
+{
+ _line = 0; /* clear leaves us at top... */
+ _col = 0;
+
+ if(ps_global->in_init_seq)
+ return;
+
+ mark_status_unknown();
+ mark_keymenu_dirty();
+ mark_titlebar_dirty();
+
+ /*
+ * If the terminal doesn't have back color erase, then we have to
+ * erase manually to preserve the background color.
+ */
+ if(pico_usingcolor() && (!_bce || !_clearscreen)){
+ ClearLines(0, _lines-1);
+ MoveCursor(0, 0);
+ }
+ else if(_clearscreen){
+ tputs(_clearscreen, 1, outchar);
+ moveabsolute(0, 0); /* some clearscreens don't move correctly */
+ }
+}
+
+
+/*----------------------------------------------------------------------
+ Internal move cursor to absolute position
+
+ Args: col -- column to move cursor to
+ row -- row to move cursor to
+
+ Result: cursor is moved (variables, not updates)
+ ----*/
+
+static void
+moveabsolute(col, row)
+{
+
+ char *stuff, *tgoto();
+
+ stuff = tgoto(_moveto, col, row);
+ tputs(stuff, 1, outchar);
+}
+
+
+/*----------------------------------------------------------------------
+ Move the cursor to the row and column number
+ Args: row number
+ column number
+
+ Result: Cursor moves
+ internal position updated
+ ----*/
+void
+MoveCursor(row, col)
+ int row, col;
+{
+ /** move cursor to the specified row column on the screen.
+ 0,0 is the top left! **/
+
+ int scrollafter = 0;
+
+ /* we don't want to change "rows" or we'll mangle scrolling... */
+
+ if(ps_global->in_init_seq)
+ return;
+
+ if (col < 0)
+ col = 0;
+ if (col >= ps_global->ttyo->screen_cols)
+ col = ps_global->ttyo->screen_cols - 1;
+ if (row < 0)
+ row = 0;
+ if (row > ps_global->ttyo->screen_rows) {
+ if (col == 0)
+ scrollafter = row - ps_global->ttyo->screen_rows;
+ row = ps_global->ttyo->screen_rows;
+ }
+
+ if (!_moveto)
+ return;
+
+ if (row == _line) {
+ if (col == _col)
+ return; /* already there! */
+
+ else if (abs(col - _col) < 5) { /* within 5 spaces... */
+ if (col > _col && _right)
+ CursorRight(col - _col);
+ else if (col < _col && _left)
+ CursorLeft(_col - col);
+ else
+ moveabsolute(col, row);
+ }
+ else /* move along to the new x,y loc */
+ moveabsolute(col, row);
+ }
+ else if (col == _col && abs(row - _line) < 5) {
+ if (row < _line && _up)
+ CursorUp(_line - row);
+ else if (_line > row && _down)
+ CursorDown(row - _line);
+ else
+ moveabsolute(col, row);
+ }
+ else if (_line == row-1 && col == 0) {
+ putchar('\n'); /* that's */
+ putchar('\r'); /* easy! */
+ }
+ else
+ moveabsolute(col, row);
+
+ _line = row; /* to ensure we're really there... */
+ _col = col;
+
+ if (scrollafter) {
+ while (scrollafter--) {
+ putchar('\n');
+ putchar('\r');
+
+ }
+ }
+
+ return;
+}
+
+
+
+/*----------------------------------------------------------------------
+ Newline, move the cursor to the start of next line
+
+ Result: Cursor moves
+ ----*/
+void
+NewLine()
+{
+ /** move the cursor to the beginning of the next line **/
+
+ Writechar('\n', 0);
+ Writechar('\r', 0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Move cursor up n lines with terminal escape sequence
+
+ Args: n -- number of lines to go up
+
+ Result: cursor moves,
+ internal position updated
+
+ Only for ttyout use; not outside callers
+ ----*/
+static void
+CursorUp(n)
+int n;
+{
+ /** move the cursor up 'n' lines **/
+ /** Calling function must check that _up is not null before calling **/
+
+ _line = (_line-n > 0? _line - n: 0); /* up 'n' lines... */
+
+ while (n-- > 0)
+ tputs(_up, 1, outchar);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Move cursor down n lines with terminal escape sequence
+
+ Arg: n -- number of lines to go down
+
+ Result: cursor moves,
+ internal position updated
+
+ Only for ttyout use; not outside callers
+ ----*/
+static void
+CursorDown(n)
+ int n;
+{
+ /** move the cursor down 'n' lines **/
+ /** Caller must check that _down is not null before calling **/
+
+ _line = (_line+n < ps_global->ttyo->screen_rows ? _line + n
+ : ps_global->ttyo->screen_rows);
+ /* down 'n' lines... */
+
+ while (n-- > 0)
+ tputs(_down, 1, outchar);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Move cursor left n lines with terminal escape sequence
+
+ Args: n -- number of lines to go left
+
+ Result: cursor moves,
+ internal position updated
+
+ Only for ttyout use; not outside callers
+ ----*/
+static void
+CursorLeft(n)
+int n;
+{
+ /** move the cursor 'n' characters to the left **/
+ /** Caller must check that _left is not null before calling **/
+
+ _col = (_col - n> 0? _col - n: 0); /* left 'n' chars... */
+
+ while (n-- > 0)
+ tputs(_left, 1, outchar);
+}
+
+
+/*----------------------------------------------------------------------
+ Move cursor right n lines with terminal escape sequence
+
+ Args: number of lines to go right
+
+ Result: cursor moves,
+ internal position updated
+
+ Only for ttyout use; not outside callers
+ ----*/
+static void
+CursorRight(n)
+int n;
+{
+ /** move the cursor 'n' characters to the right (nondestructive) **/
+ /** Caller must check that _right is not null before calling **/
+
+ _col = (_col+n < ps_global->ttyo->screen_cols? _col + n :
+ ps_global->ttyo->screen_cols); /* right 'n' chars... */
+
+ while (n-- > 0)
+ tputs(_right, 1, outchar);
+
+}
+
+
+
+/*----------------------------------------------------------------------
+ Insert character on screen pushing others right
+
+ Args: c -- character to insert
+
+ Result: charcter is inserted if possible
+ return -1 if it can't be done
+ ----------------------------------------------------------------------*/
+InsertChar(c)
+ int c;
+{
+ if(_insertchar != NULL && *_insertchar != '\0') {
+ tputs(_insertchar, 1, outchar);
+ Writechar(c, 0);
+ } else if(_startinsert != NULL && *_startinsert != '\0') {
+ tputs(_startinsert, 1, outchar);
+ Writechar(c, 0);
+ tputs(_endinsert, 1, outchar);
+ } else {
+ return(-1);
+ }
+ return(0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Delete n characters from line, sliding rest of line left
+
+ Args: n -- number of characters to delete
+
+
+ Result: characters deleted on screen
+ returns -1 if it wasn't done
+ ----------------------------------------------------------------------*/
+DeleteChar(n)
+ int n;
+{
+ if(_deletechar == NULL || *_deletechar == '\0')
+ return(-1);
+
+ while(n) {
+ tputs(_deletechar, 1, outchar);
+ n--;
+ }
+ return(0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Go into scrolling mode, that is set scrolling region if applicable
+
+ Args: top -- top line of region to scroll
+ bottom -- bottom line of region to scroll
+ (These are zero-origin numbers)
+
+ Result: either set scrolling region or
+ save values for later scrolling
+ returns -1 if we can't scroll
+
+ Unfortunately this seems to leave the cursor in an unpredictable place
+ at least the manuals don't say where, so we force it here.
+-----*/
+static int __t, __b;
+
+BeginScroll(top, bottom)
+ int top, bottom;
+{
+ char *stuff;
+
+ if(_scrollmode == NoScroll)
+ return(-1);
+
+ __t = top;
+ __b = bottom;
+ if(_scrollmode == UseScrollRegion){
+ stuff = tgoto(_scrollregion, bottom, top);
+ tputs(stuff, 1, outchar);
+ /*-- a location very far away to force a cursor address --*/
+ _line = FARAWAY;
+ _col = FARAWAY;
+ }
+ return(0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ End scrolling -- clear scrolling regions if necessary
+
+ Result: Clear scrolling region on terminal
+ -----*/
+void
+EndScroll()
+{
+ if(_scrollmode == UseScrollRegion && _scrollregion != NULL){
+ /* Use tgoto even though we're not cursor addressing because
+ the format of the capability is the same.
+ */
+ char *stuff = tgoto(_scrollregion, ps_global->ttyo->screen_rows -1, 0);
+ tputs(stuff, 1, outchar);
+ /*-- a location very far away to force a cursor address --*/
+ _line = FARAWAY;
+ _col = FARAWAY;
+ }
+}
+
+
+/* ----------------------------------------------------------------------
+ Scroll the screen using insert/delete or scrolling regions
+
+ Args: lines -- number of lines to scroll, positive forward
+
+ Result: Screen scrolls
+ returns 0 if scroll succesful, -1 if not
+
+ positive lines goes foward (new lines come in at bottom
+ Leaves cursor at the place to insert put new text
+
+ 0,0 is the upper left
+ -----*/
+ScrollRegion(lines)
+ int lines;
+{
+ int l;
+
+ if(lines == 0)
+ return(0);
+
+ if(_scrollmode == UseScrollRegion) {
+ if(lines > 0) {
+ MoveCursor(__b, 0);
+ for(l = lines ; l > 0 ; l--)
+ tputs((_scrolldown == NULL || _scrolldown[0] =='\0') ? "\n" :
+ _scrolldown, 1, outchar);
+ } else {
+ MoveCursor(__t, 0);
+ for(l = -lines; l > 0; l--)
+ tputs(_scrollup, 1, outchar);
+ }
+ } else if(_scrollmode == InsertDelete) {
+ if(lines > 0) {
+ MoveCursor(__t, 0);
+ for(l = lines; l > 0; l--)
+ tputs(_deleteline, 1, outchar);
+ MoveCursor(__b, 0);
+ for(l = lines; l > 0; l--)
+ tputs(_insertline, 1, outchar);
+ } else {
+ for(l = -lines; l > 0; l--) {
+ MoveCursor(__b, 0);
+ tputs(_deleteline, 1, outchar);
+ MoveCursor(__t, 0);
+ tputs(_insertline, 1, outchar);
+ }
+ }
+ } else {
+ return(-1);
+ }
+ fflush(stdout);
+ return(0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Write a character to the screen, keeping track of cursor position
+
+ Args: ch -- character to output
+
+ Result: character output
+ cursor position variables updated
+ ----*/
+void
+Writechar(ch, new_esc_len)
+ register unsigned int ch;
+ int new_esc_len;
+{
+ static int esc_len = 0;
+
+ if(ps_global->in_init_seq /* silent */
+ || (F_ON(F_BLANK_KEYMENU, ps_global) /* or bottom, */
+ && !esc_len /* right cell */
+ && _line + 1 == ps_global->ttyo->screen_rows
+ && _col + 1 == ps_global->ttyo->screen_cols))
+ return;
+
+ if(!iscntrl(ch & 0x7f)){
+ putchar(ch);
+ if(esc_len > 0)
+ esc_len--;
+ else
+ _col++;
+ }
+ else{
+ switch(ch){
+ case LINE_FEED:
+ /*-- Don't have to watch out for auto wrap or newline glitch
+ because we never let it happen. See below
+ ---*/
+ putchar('\n');
+ _line = min(_line+1,ps_global->ttyo->screen_rows);
+ esc_len = 0;
+ break;
+
+ case RETURN : /* move to column 0 */
+ putchar('\r');
+ _col = 0;
+ esc_len = 0;
+ break;
+
+ case BACKSPACE : /* move back a space if not in column 0 */
+ if(_col != 0) {
+ putchar('\b');
+ _col--;
+ } /* else BACKSPACE does nothing */
+
+ break;
+
+ case BELL : /* ring the bell but don't advance _col */
+ putchar(ch);
+ break;
+
+ case TAB : /* if a tab, output it */
+ do /* BUG? ignores tty driver's spacing */
+ putchar(' ');
+ while(_col < ps_global->ttyo->screen_cols - 1
+ && ((++_col)&0x07) != 0);
+ break;
+
+ case ESCAPE :
+ /* If we're outputting an escape here, it may be part of an iso2022
+ escape sequence in which case take up no space on the screen.
+ Unfortunately such sequences are variable in length.
+ */
+ esc_len = new_esc_len - 1;
+ putchar(ch);
+ break;
+
+ default : /* Change remaining control characters to ? */
+ if(F_ON(F_PASS_CONTROL_CHARS, ps_global))
+ putchar(ch);
+ else
+ putchar('?');
+
+ if(esc_len > 0)
+ esc_len--;
+ else
+ _col++;
+
+ break;
+ }
+ }
+
+
+ /* Here we are at the end of the line. We've decided to make no
+ assumptions about how the terminal behaves at this point.
+ What can happen now are the following
+ 1. Cursor is at start of next line, and next character will
+ apear there. (autowrap, !newline glitch)
+ 2. Cursor is at start of next line, and if a newline is output
+ it'll be ignored. (autowrap, newline glitch)
+ 3. Cursor is still at end of line and next char will apear
+ there over the top of what is there now (no autowrap).
+ We ignore all this and force the cursor to the next line, just
+ like case 1. A little expensive but worth it to avoid problems
+ with terminals configured so they don't match termcap
+ */
+ if(_col == ps_global->ttyo->screen_cols) {
+ _col = 0;
+ if(_line + 1 < ps_global->ttyo->screen_rows)
+ _line++;
+
+ moveabsolute(_col, _line);
+ }
+}
+
+
+
+/*----------------------------------------------------------------------
+ Write string to screen at current cursor position
+
+ Args: string -- string to be output
+
+ Result: String written to the screen
+ ----*/
+void
+Write_to_screen(string) /* UNIX */
+ register char *string;
+{
+ while(*string)
+ Writechar((unsigned char) *string++, 0);
+}
+
+
+/*----------------------------------------------------------------------
+ Write no more than n chars of string to screen at current cursor position
+
+ Args: string -- string to be output
+ n -- number of chars to output
+
+ Result: String written to the screen
+ ----*/
+void
+Write_to_screen_n(string, n) /* UNIX */
+ register char *string;
+ int n;
+{
+ while(n-- && *string)
+ Writechar((unsigned char) *string++, 0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Clear screen to end of line on current line
+
+ Result: Line is cleared
+ ----*/
+void
+CleartoEOLN()
+{
+ int c, starting_col, starting_line;
+ char *last_bg_color;
+
+ /*
+ * If the terminal doesn't have back color erase, then we have to
+ * erase manually to preserve the background color.
+ */
+ if(pico_usingcolor() && (!_bce || !_cleartoeoln)){
+ starting_col = _col;
+ starting_line = _line;
+ last_bg_color = pico_get_last_bg_color();
+ pico_set_nbg_color();
+ for(c = _col; c < _columns; c++)
+ Writechar(' ', 0);
+
+ MoveCursor(starting_line, starting_col);
+ if(last_bg_color){
+ (void)pico_set_bg_color(last_bg_color);
+ fs_give((void **)&last_bg_color);
+ }
+ }
+ else if(_cleartoeoln)
+ tputs(_cleartoeoln, 1, outchar);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Clear screen to end of screen from current point
+
+ Result: screen is cleared
+ ----*/
+CleartoEOS()
+{
+ int starting_col, starting_line;
+
+ /*
+ * If the terminal doesn't have back color erase, then we have to
+ * erase manually to preserve the background color.
+ */
+ if(pico_usingcolor() && (!_bce || !_cleartoeos)){
+ starting_col = _col;
+ starting_line = _line;
+ CleartoEOLN();
+ ClearLines(_line+1, _lines-1);
+ MoveCursor(starting_line, starting_col);
+ }
+ else if(_cleartoeos)
+ tputs(_cleartoeos, 1, outchar);
+}
+
+
+
+/*----------------------------------------------------------------------
+ function to output character used by termcap
+
+ Args: c -- character to output
+
+ Result: character output to screen via stdio
+ ----*/
+void
+outchar(c)
+int c;
+{
+ /** output the given character. From tputs... **/
+ /** Note: this CANNOT be a macro! **/
+
+ putc((unsigned char)c, stdout);
+}
+
+
+
+/*----------------------------------------------------------------------
+ function to output string such that it becomes icon text
+
+ Args: s -- string to write
+
+ Result: string indicated become our "icon" text
+ ----*/
+void
+icon_text(s)
+ char *s;
+{
+ static char *old_s;
+ static enum {ukn, yes, no} xterm;
+
+ if(xterm == ukn)
+ xterm = (getenv("DISPLAY") != NULL) ? yes : no;
+
+ if(F_ON(F_ENABLE_XTERM_NEWMAIL,ps_global) && xterm == yes && (s || old_s)){
+ fputs("\033]1;", stdout);
+ fputs((old_s = s) ? s : ps_global->pine_name, stdout);
+ fputs("\007", stdout);
+ fflush(stdout);
+ }
+}
+
+
+#ifdef _WINDOWS
+#line 3 "osdep/termout.gen"
+#endif
+
+/*
+ * Generic tty output routines...
+ */
+
+/*----------------------------------------------------------------------
+ Printf style output line to the screen at given position, 0 args
+
+ Args: x -- column position on the screen
+ y -- row position on the screen
+ line -- line of text to output
+
+ Result: text is output
+ cursor position is update
+ ----*/
+void
+PutLine0(x, y, line)
+ int x,y;
+ register char *line;
+{
+ MoveCursor(x,y);
+ Write_to_screen(line);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Output line of length len to the display observing embedded attributes
+
+ Args: x -- column position on the screen
+ y -- column position on the screen
+ line -- text to be output
+ length -- length of text to be output
+
+ Result: text is output
+ cursor position is updated
+ ----------------------------------------------------------------------*/
+void
+PutLine0n8b(x, y, line, length, handles)
+ int x, y, length;
+ register char *line;
+ HANDLE_S *handles;
+{
+ unsigned char c;
+#ifdef _WINDOWS
+ int hkey = 0;
+#endif
+
+ MoveCursor(x,y);
+ while(length-- && (c = (unsigned char)*line++)){
+
+ if(c == (unsigned char)TAG_EMBED && length){
+ length--;
+ switch(*line++){
+ case TAG_INVON :
+ StartInverse();
+ break;
+ case TAG_INVOFF :
+ EndInverse();
+ break;
+ case TAG_BOLDON :
+ StartBold();
+ break;
+ case TAG_BOLDOFF :
+ EndBold();
+ break;
+ case TAG_ULINEON :
+ StartUnderline();
+ break;
+ case TAG_ULINEOFF :
+ EndUnderline();
+ break;
+ case TAG_HANDLE :
+ length -= *line + 1; /* key length plus length tag */
+ if(handles){
+ int key, n;
+
+ for(key = 0, n = *line++; n; n--) /* forget Horner? */
+ key = (key * 10) + (*line++ - '0');
+
+#if _WINDOWS
+ hkey = key;
+#endif
+
+ if(key == handles->key){
+ if(pico_usingcolor() &&
+ ps_global->VAR_SLCTBL_FORE_COLOR &&
+ ps_global->VAR_SLCTBL_BACK_COLOR){
+ pico_set_normal_color();
+ }
+ else
+ EndBold();
+
+ StartInverse();
+ }
+ }
+ else{
+ /* BUG: complain? */
+ line += *line + 1;
+ }
+
+ break;
+ case TAG_FGCOLOR :
+ if(length < RGBLEN){
+ Writechar(TAG_EMBED, 0);
+ Writechar(*(line-1), 0);
+ break;
+ }
+
+ (void)pico_set_fg_color(line);
+ length -= RGBLEN;
+ line += RGBLEN;
+ break;
+ case TAG_BGCOLOR :
+ if(length < RGBLEN){
+ Writechar(TAG_EMBED, 0);
+ Writechar(*(line-1), 0);
+ break;
+ }
+
+ (void)pico_set_bg_color(line);
+ length -= RGBLEN;
+ line += RGBLEN;
+ break;
+ default : /* literal "embed" char? */
+ Writechar(TAG_EMBED, 0);
+ Writechar(*(line-1), 0);
+ break;
+ } /* tag with handle, skip it */
+ }
+ else if(c == '\033') /* check for iso-2022 escape */
+ Writechar(c, match_escapes(line));
+ else
+ Writechar(c, 0);
+ }
+
+
+#if _WINDOWS_X
+ if(hkey) {
+ char *tmp_file = NULL, ext[32], mtype[128];
+ HANDLE_S *h;
+ extern HANDLE_S *get_handle (HANDLE_S *, int);
+
+ if((h = get_handle(handles, hkey)) && h->type == Attach){
+ ext[0] = '\0';
+ strcpy(mtype, body_type_names(h->h.attach->body->type));
+ if (h->h.attach->body->subtype) {
+ strcat (mtype, "/");
+ strcat (mtype, h->h.attach->body->subtype);
+ }
+
+ if(!set_mime_extension_by_type(ext, mtype)){
+ char *namep, *dotp, *p;
+
+ if(namep = rfc2231_get_param(h->h.attach->body->parameter,
+ "name", NULL, NULL)){
+ for(dotp = NULL, p = namep; *p; p++)
+ if(*p == '.')
+ dotp = p + 1;
+
+ if(dotp && strlen(dotp) < sizeof(ext) - 1)
+ strcpy(ext, dotp);
+
+ fs_give((void **) &namep);
+ }
+ }
+
+ if(ext[0] && (tmp_file = temp_nam_ext(NULL, "im", ext))){
+ FILE *f = fopen(tmp_file, "w");
+
+ mswin_registericon(x, h->key, tmp_file);
+
+ fclose(f);
+ unlink(tmp_file);
+ fs_give((void **)&tmp_file);
+ }
+ }
+ }
+#endif
+}
+
+
+/*----------------------------------------------------------------------
+ Printf style output line to the screen at given position, 1 arg
+
+ Input: position on the screen
+ line of text to output
+
+ Result: text is output
+ cursor position is update
+ ----------------------------------------------------------------------*/
+void
+/*VARARGS2*/
+PutLine1(x, y, line, arg1)
+ int x, y;
+ char *line;
+ void *arg1;
+{
+ char buffer[PUTLINE_BUFLEN];
+
+ sprintf(buffer, line, arg1);
+ PutLine0(x, y, buffer);
+}
+
+
+/*----------------------------------------------------------------------
+ Printf style output line to the screen at given position, 2 args
+
+ Input: position on the screen
+ line of text to output
+
+ Result: text is output
+ cursor position is update
+ ----------------------------------------------------------------------*/
+void
+/*VARARGS3*/
+PutLine2(x, y, line, arg1, arg2)
+ int x, y;
+ char *line;
+ void *arg1, *arg2;
+{
+ char buffer[PUTLINE_BUFLEN];
+
+ sprintf(buffer, line, arg1, arg2);
+ PutLine0(x, y, buffer);
+}
+
+
+/*----------------------------------------------------------------------
+ Printf style output line to the screen at given position, 3 args
+
+ Input: position on the screen
+ line of text to output
+
+ Result: text is output
+ cursor position is update
+ ----------------------------------------------------------------------*/
+void
+/*VARARGS4*/
+PutLine3(x, y, line, arg1, arg2, arg3)
+ int x, y;
+ char *line;
+ void *arg1, *arg2, *arg3;
+{
+ char buffer[PUTLINE_BUFLEN];
+
+ sprintf(buffer, line, arg1, arg2, arg3);
+ PutLine0(x, y, buffer);
+}
+
+
+/*----------------------------------------------------------------------
+ Printf style output line to the screen at given position, 4 args
+
+ Args: x -- column position on the screen
+ y -- column position on the screen
+ line -- printf style line of text to output
+
+ Result: text is output
+ cursor position is update
+ ----------------------------------------------------------------------*/
+void
+/*VARARGS5*/
+PutLine4(x, y, line, arg1, arg2, arg3, arg4)
+ int x, y;
+ char *line;
+ void *arg1, *arg2, *arg3, *arg4;
+{
+ char buffer[PUTLINE_BUFLEN];
+
+ sprintf(buffer, line, arg1, arg2, arg3, arg4);
+ PutLine0(x, y, buffer);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Printf style output line to the screen at given position, 5 args
+
+ Args: x -- column position on the screen
+ y -- column position on the screen
+ line -- printf style line of text to output
+
+ Result: text is output
+ cursor position is update
+ ----------------------------------------------------------------------*/
+void
+/*VARARGS6*/
+PutLine5(x, y, line, arg1, arg2, arg3, arg4, arg5)
+ int x, y;
+ char *line;
+ void *arg1, *arg2, *arg3, *arg4, *arg5;
+{
+ char buffer[PUTLINE_BUFLEN];
+
+ sprintf(buffer, line, arg1, arg2, arg3, arg4, arg5);
+ PutLine0(x, y, buffer);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Output a line to the screen, centered
+
+ Input: Line number to print on, string to output
+
+ Result: String is output to screen
+ Returns column number line is output on
+ ----------------------------------------------------------------------*/
+int
+Centerline(line, string)
+ int line;
+ char *string;
+{
+ register int length, col;
+
+ length = strlen(string);
+
+ if (length > ps_global->ttyo->screen_cols)
+ col = 0;
+ else
+ col = (ps_global->ttyo->screen_cols - length) / 2;
+
+ PutLine0(line, col, string);
+ return(col);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Clear specified line on the screen
+
+ Result: The line is blanked and the cursor is left at column 0.
+
+ ----*/
+void
+ClearLine(n)
+ int n;
+{
+ if(ps_global->in_init_seq)
+ return;
+
+ MoveCursor(n, 0);
+ CleartoEOLN();
+}
+
+
+
+/*----------------------------------------------------------------------
+ Clear specified lines on the screen
+
+ Result: The lines starting at 'x' and ending at 'y' are blanked
+ and the cursor is left at row 'x', column 0
+
+ ----*/
+void
+ClearLines(x, y)
+ int x, y;
+{
+ int i;
+
+ for(i = x; i <= y; i++)
+ ClearLine(i);
+
+ MoveCursor(x, 0);
+}
+
+
+
+/*----------------------------------------------------------------------
+ Indicate to the screen painting here that the position of the cursor
+ has been disturbed and isn't where these functions might think.
+ ----*/
+void
+clear_cursor_pos()
+{
+ _line = FARAWAY;
+ _col = FARAWAY;
+}
+
+