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/* Copyright (C) 1999, 2000, 2001, 2002, 2005 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 1999.
This file is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
elfutils is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <libelf.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static void
print_ehdr (Elf32_Ehdr *ehdr)
{
int n;
for (n = 0; n < EI_NIDENT; ++n)
printf (" %02x", ehdr->e_ident[n]);
printf ("\ntype = %d\nmachine = %d\nversion = %d\nentry = %d\n"
"phoff = %d\nshoff = %d\nflags = %d\nehsize = %d\n"
"phentsize = %d\nphnum = %d\nshentsize = %d\nshnum = %d\n"
"shstrndx = %d\n",
ehdr->e_type,
ehdr->e_machine,
ehdr->e_version,
ehdr->e_entry,
ehdr->e_phoff,
ehdr->e_shoff,
ehdr->e_flags,
ehdr->e_ehsize,
ehdr->e_phentsize,
ehdr->e_phnum,
ehdr->e_shentsize,
ehdr->e_shnum,
ehdr->e_shstrndx);
}
int
main (int argc, char *argv[] __attribute__ ((unused)))
{
Elf *elf;
int result = 0;
int fd;
char fname[] = "newfile-XXXXXX";
fd = mkstemp (fname);
if (fd == -1)
{
printf ("cannot create temporary file: %m\n");
exit (1);
}
/* Remove the file when we exit. */
unlink (fname);
elf_version (EV_CURRENT);
elf = elf_begin (fd, ELF_C_WRITE, NULL);
if (elf == NULL)
{
printf ("elf_begin: %s\n", elf_errmsg (-1));
result = 1;
}
else
{
if (elf32_newehdr (elf) == NULL)
{
printf ("elf32_newehdr: %s\n", elf_errmsg (-1));
result = 1;
}
else
{
Elf32_Ehdr *ehdr = elf32_getehdr (elf);
if (ehdr == NULL)
{
printf ("elf32_getehdr: %s\n", elf_errmsg (-1));
result = 1;
}
else
{
int i;
if (argc > 1)
/* Use argc as a debugging flag. */
print_ehdr (ehdr);
/* Some tests. */
for (i = 0; i < EI_NIDENT; ++i)
if (ehdr->e_ident[i] != 0)
{
printf ("ehdr->e_ident[%d] != 0\n", i);
result = 1;
break;
}
#define VALUE_TEST(name, val) \
if (ehdr->name != val) \
{ \
printf ("ehdr->%s != %d\n", #name, val); \
result = 1; \
}
#define ZERO_TEST(name) VALUE_TEST (name, 0)
ZERO_TEST (e_type);
ZERO_TEST (e_machine);
ZERO_TEST (e_version);
ZERO_TEST (e_entry);
ZERO_TEST (e_phoff);
ZERO_TEST (e_shoff);
ZERO_TEST (e_flags);
ZERO_TEST (e_ehsize);
ZERO_TEST (e_phentsize);
ZERO_TEST (e_phnum);
ZERO_TEST (e_shentsize);
ZERO_TEST (e_shnum);
ZERO_TEST (e_shstrndx);
if (elf32_newphdr (elf, 10) == NULL)
{
printf ("elf32_newphdr: %s\n", elf_errmsg (-1));
result = 1;
}
else
{
if (argc > 1)
print_ehdr (ehdr);
ehdr = elf32_getehdr (elf);
if (ehdr == NULL)
{
printf ("elf32_getehdr (#2): %s\n", elf_errmsg (-1));
result = 1;
}
else
{
ZERO_TEST (e_type);
ZERO_TEST (e_machine);
ZERO_TEST (e_version);
ZERO_TEST (e_entry);
ZERO_TEST (e_phoff);
ZERO_TEST (e_shoff);
ZERO_TEST (e_flags);
ZERO_TEST (e_ehsize);
VALUE_TEST (e_phentsize, (int) sizeof (Elf32_Phdr));
VALUE_TEST (e_phnum, 10);
ZERO_TEST (e_shentsize);
ZERO_TEST (e_shnum);
ZERO_TEST (e_shstrndx);
}
}
}
}
(void) elf_end (elf);
}
return result;
}
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