103333823c75a1c1887e923828113a1b0fd12020cElliott Hughes/* Copyright (C) 2008 Red Hat, Inc. 203333823c75a1c1887e923828113a1b0fd12020cElliott Hughes This file is part of elfutils. 303333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 403333823c75a1c1887e923828113a1b0fd12020cElliott Hughes This file is free software; you can redistribute it and/or modify 503333823c75a1c1887e923828113a1b0fd12020cElliott Hughes it under the terms of the GNU General Public License as published by 603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes the Free Software Foundation; either version 3 of the License, or 703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes (at your option) any later version. 803333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 903333823c75a1c1887e923828113a1b0fd12020cElliott Hughes elfutils is distributed in the hope that it will be useful, but 1003333823c75a1c1887e923828113a1b0fd12020cElliott Hughes WITHOUT ANY WARRANTY; without even the implied warranty of 1103333823c75a1c1887e923828113a1b0fd12020cElliott Hughes MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1203333823c75a1c1887e923828113a1b0fd12020cElliott Hughes GNU General Public License for more details. 1303333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 1403333823c75a1c1887e923828113a1b0fd12020cElliott Hughes You should have received a copy of the GNU General Public License 1503333823c75a1c1887e923828113a1b0fd12020cElliott Hughes along with this program. If not, see <http://www.gnu.org/licenses/>. */ 1603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 1703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes#ifdef HAVE_CONFIG_H 1803333823c75a1c1887e923828113a1b0fd12020cElliott Hughes# include <config.h> 1903333823c75a1c1887e923828113a1b0fd12020cElliott Hughes#endif 2003333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 2103333823c75a1c1887e923828113a1b0fd12020cElliott Hughes#include <errno.h> 2203333823c75a1c1887e923828113a1b0fd12020cElliott Hughes#include <error.h> 2303333823c75a1c1887e923828113a1b0fd12020cElliott Hughes#include <fcntl.h> 2403333823c75a1c1887e923828113a1b0fd12020cElliott Hughes#include <gelf.h> 2503333823c75a1c1887e923828113a1b0fd12020cElliott Hughes#include <stdio.h> 2603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes#include <stdlib.h> 2703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 2803333823c75a1c1887e923828113a1b0fd12020cElliott Hughesint 2903333823c75a1c1887e923828113a1b0fd12020cElliott Hughesmain (int argc, char *argv[]) 3003333823c75a1c1887e923828113a1b0fd12020cElliott Hughes{ 3103333823c75a1c1887e923828113a1b0fd12020cElliott Hughes if (argc < 2) 3203333823c75a1c1887e923828113a1b0fd12020cElliott Hughes error (1, 0, "Usage: %s FILE OFFSET", argv[0]); 3303333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 3403333823c75a1c1887e923828113a1b0fd12020cElliott Hughes /* Set the ELF version. */ 3503333823c75a1c1887e923828113a1b0fd12020cElliott Hughes elf_version (EV_CURRENT); 3603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 3703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes /* Open the archive. */ 3803333823c75a1c1887e923828113a1b0fd12020cElliott Hughes int fd = open (argv[1], O_RDONLY); 3903333823c75a1c1887e923828113a1b0fd12020cElliott Hughes if (fd < 0) 4003333823c75a1c1887e923828113a1b0fd12020cElliott Hughes error (1, errno, "cannot open '%s'", argv[1]); 4103333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 4203333823c75a1c1887e923828113a1b0fd12020cElliott Hughes Elf *elf = elf_begin (fd, ELF_C_READ, NULL); 4303333823c75a1c1887e923828113a1b0fd12020cElliott Hughes if (elf == NULL) 4403333823c75a1c1887e923828113a1b0fd12020cElliott Hughes error (2, 0, "elf_begin: %s", elf_errmsg (-1)); 4503333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 4603333823c75a1c1887e923828113a1b0fd12020cElliott Hughes Elf_Scn *scn = gelf_offscn (elf, strtoull (argv[2], NULL, 0)); 4703333823c75a1c1887e923828113a1b0fd12020cElliott Hughes if (scn == NULL) 4803333823c75a1c1887e923828113a1b0fd12020cElliott Hughes error (3, 0, "gelf_offscn: %s", elf_errmsg (-1)); 4903333823c75a1c1887e923828113a1b0fd12020cElliott Hughes 5003333823c75a1c1887e923828113a1b0fd12020cElliott Hughes elf_end (elf); 5103333823c75a1c1887e923828113a1b0fd12020cElliott Hughes return 0; 5203333823c75a1c1887e923828113a1b0fd12020cElliott Hughes} 53