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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <error.h>
#include <gelf.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
int main( int argc, char *argv[])
{
int fd, cmd;
size_t i;
char shname[1024];
Elf *arf, *elf;
GElf_Ehdr ehdr;
Elf_Scn *scn;
GElf_Shdr shdr;
Elf_Data *data;
if(elf_version(EV_CURRENT) == EV_NONE)
error(EXIT_FAILURE, 0, "Library out of date.");
if(argc != 2)
error(EXIT_FAILURE, 0, "Usage: %s <filename>", argv[0]);
if((fd = open(argv[1], O_RDONLY)) == -1)
error(EXIT_FAILURE, 0, "Failed open file.");
cmd = ELF_C_READ;
if((arf = elf_begin(fd, cmd, (Elf *)0)) == NULL)
error(EXIT_FAILURE, 0, "Failed open elf: %s", elf_errmsg ( -1));
while((elf = elf_begin(fd, cmd, arf)) != NULL)
{
if(gelf_getehdr(elf,&ehdr) != NULL)
{
scn = NULL;
while((scn = elf_nextscn(elf, scn)) != NULL)
{
gelf_getshdr(scn, &shdr);
strcpy(shname, elf_strptr(elf, ehdr.e_shstrndx, shdr.sh_name));
printf("%s\n", shname);
/*
if( !strcmp(shname, ".bss") || !strcmp(shname, ".tbss") )
continue;
*/
if(shdr.sh_type == SHT_NOBITS)
continue;
data = NULL;
while((data = elf_getdata(scn, data)) != NULL)
{
printf( "Type:\t\t%d\nSize:\t\t%lu\n"
"Off:\t\t%lu\nAlign:\t\t%lu\nVersion:\t%u\n",
data->d_type,
data->d_size,
data->d_off,
data->d_align,
data->d_version
);
for(i = 0; i < (int)data->d_size; i++)
{
printf("%2x ", (uint8_t)((char *)(data->d_buf))[i]);
if((i+1)%16 == 0)
printf("\n");
}
}
printf("\n\n");
}
}
cmd = elf_next(elf);
elf_end(elf);
}
elf_end(arf);
close(fd);
}
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