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137 lines
3.2 KiB
C
137 lines
3.2 KiB
C
/* Copyright (C) 1999, 2000, 2002 Red Hat, Inc.
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This file is part of elfutils.
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Written by Ulrich Drepper <drepper@redhat.com>, 1999.
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This file is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <fcntl.h>
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#include <libelf.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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int
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main (int argc, char *argv[])
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{
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int fd;
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FILE *fp;
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Elf *elf;
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Elf_Arsym *arsym;
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size_t narsym;
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if (argc < 3)
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exit (1);
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/* Open the archive. */
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fd = open (argv[1], O_RDONLY);
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if (fd == -1)
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{
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printf ("Cannot open input file: %m");
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exit (1);
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}
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/* Open the output file. */
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fp = fopen (argv[2], "w");
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if (fp == NULL)
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{
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printf ("Cannot open output file: %m");
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exit (1);
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}
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/* Set the ELF version. */
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elf_version (EV_CURRENT);
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/* Create an ELF descriptor. */
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elf = elf_begin (fd, ELF_C_READ, NULL);
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if (elf == NULL)
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{
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printf ("Cannot create ELF descriptor: %s\n", elf_errmsg (-1));
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exit (1);
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}
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/* If it is no archive punt. */
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if (elf_kind (elf) != ELF_K_AR)
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{
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printf ("`%s' is no archive\n", argv[1]);
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exit (1);
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}
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/* Now get the index of the archive. */
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arsym = elf_getarsym (elf, &narsym);
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if (arsym == NULL)
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{
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printf ("Cannot get archive index: %s\n", elf_errmsg (-1));
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exit (1);
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}
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/* If there is no element in the index do nothing. There always is
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an empty entry at the end which is included in the count and
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which we want to skip. */
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if (narsym-- > 1)
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while (narsym-- > 0)
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{
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Elf *subelf;
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Elf_Arhdr *arhdr;
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if (elf_rand (elf, arsym[narsym].as_off) != arsym[narsym].as_off)
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{
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printf ("random access for symbol `%s' fails: %s\n",
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arsym[narsym].as_name, elf_errmsg (-1));
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exit (1);
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}
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subelf = elf_begin (fd, ELF_C_READ, elf);
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if (subelf == NULL)
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{
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printf ("Cannot create ELF descriptor for archive member: %s\n",
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elf_errmsg (-1));
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exit (1);
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}
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arhdr = elf_getarhdr (subelf);
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if (arhdr == NULL)
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{
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printf ("Cannot get archive header for element `%s': %s\n",
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arsym[narsym].as_name, elf_errmsg (-1));
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exit (1);
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}
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/* Now print what we actually want. */
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fprintf (fp, "%s in %s\n", arsym[narsym].as_name, arhdr->ar_name);
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/* Free the ELF descriptor. */
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if (elf_end (subelf) != 0)
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{
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printf ("Error while freeing subELF descriptor: %s\n",
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elf_errmsg (-1));
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exit (1);
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}
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}
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/* Free the ELF descriptor. */
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if (elf_end (elf) != 0)
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{
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printf ("Error while freeing ELF descriptor: %s\n", elf_errmsg (-1));
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exit (1);
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}
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close (fd);
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fclose (fp);
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return 0;
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}
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