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/* Copyright (C) 2002, 2005 Red Hat, Inc.
This file is part of elfutils.
Written by Ulrich Drepper <drepper@redhat.com>, 2002.
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/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <fcntl.h>
#include <gelf.h>
#include <stdlib.h>
#include <unistd.h>
#include "system.h"
int
main (int argc, char *argv[])
{
if (argc < 3)
error (EXIT_FAILURE, 0, "usage: %s FROMNAME TONAME", argv[0]);
elf_version (EV_CURRENT);
int infd = open (argv[1], O_RDONLY);
if (infd == -1)
error (EXIT_FAILURE, errno, "cannot open input file '%s'", argv[1]);
Elf *inelf = elf_begin (infd, ELF_C_READ, NULL);
if (inelf == NULL)
error (EXIT_FAILURE, 0, "problems opening '%s' as ELF file: %s",
argv[1], elf_errmsg (-1));
int outfd = creat (argv[2], DEFFILEMODE);
if (outfd == -1)
error (EXIT_FAILURE, errno, "cannot open output file '%s'", argv[2]);
Elf *outelf = elf_begin (outfd, ELF_C_WRITE, NULL);
if (outelf == NULL)
error (EXIT_FAILURE, 0, "problems opening '%s' as ELF file: %s",
argv[2], elf_errmsg (-1));
gelf_newehdr (outelf, gelf_getclass (inelf));
GElf_Ehdr ehdr_mem;
GElf_Ehdr *ehdr;
gelf_update_ehdr (outelf, (ehdr = gelf_getehdr (inelf, &ehdr_mem)));
if (ehdr->e_phnum > 0)
{
int cnt;
if (gelf_newphdr (outelf, ehdr->e_phnum) == 0)
error (EXIT_FAILURE, 0, "cannot create program header: %s",
elf_errmsg (-1));
for (cnt = 0; cnt < ehdr->e_phnum; ++cnt)
{
GElf_Phdr phdr_mem;
gelf_update_phdr (outelf, cnt, gelf_getphdr (inelf, cnt, &phdr_mem));
}
}
Elf_Scn *scn = NULL;
while ((scn = elf_nextscn (inelf, scn)) != NULL)
{
Elf_Scn *newscn = elf_newscn (outelf);
GElf_Shdr shdr_mem;
gelf_update_shdr (newscn, gelf_getshdr (scn, &shdr_mem));
*elf_newdata (newscn) = *elf_getdata (scn, NULL);
}
elf_flagelf (outelf, ELF_C_SET, ELF_F_LAYOUT);
if (elf_update (outelf, ELF_C_WRITE) == -1)
error (EXIT_FAILURE, 0, "elf_update failed: %s", elf_errmsg (-1));
elf_end (outelf);
close (outfd);
elf_end (inelf);
return 0;
}
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