1 /* Copyright (C) 1999, 2000, 2002 Red Hat, Inc. 2 This file is part of Red Hat elfutils. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 1999. 4 5 Red Hat elfutils is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by the 7 Free Software Foundation; version 2 of the License. 8 9 Red Hat elfutils is distributed in the hope that it will be useful, but 10 WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 General Public License for more details. 13 14 You should have received a copy of the GNU General Public License along 15 with Red Hat elfutils; if not, write to the Free Software Foundation, 16 Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. 17 18 Red Hat elfutils is an included package of the Open Invention Network. 19 An included package of the Open Invention Network is a package for which 20 Open Invention Network licensees cross-license their patents. No patent 21 license is granted, either expressly or impliedly, by designation as an 22 included package. Should you wish to participate in the Open Invention 23 Network licensing program, please visit www.openinventionnetwork.com 24 <http://www.openinventionnetwork.com>. */ 25 26 #include <config.h> 27 28 #include <fcntl.h> 29 #include <libelf.h> 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <unistd.h> 33 34 35 int 36 main (int argc, char *argv[]) 37 { 38 int fd; 39 FILE *fp; 40 Elf *elf; 41 Elf_Arsym *arsym; 42 size_t narsym; 43 44 if (argc < 3) 45 exit (1); 46 47 /* Open the archive. */ 48 fd = open (argv[1], O_RDONLY); 49 if (fd == -1) 50 { 51 printf ("Cannot open input file: %m"); 52 exit (1); 53 } 54 55 /* Open the output file. */ 56 fp = fopen (argv[2], "w"); 57 if (fp == NULL) 58 { 59 printf ("Cannot open output file: %m"); 60 exit (1); 61 } 62 63 /* Set the ELF version. */ 64 elf_version (EV_CURRENT); 65 66 /* Create an ELF descriptor. */ 67 elf = elf_begin (fd, ELF_C_READ, NULL); 68 if (elf == NULL) 69 { 70 printf ("Cannot create ELF descriptor: %s\n", elf_errmsg (-1)); 71 exit (1); 72 } 73 74 /* If it is no archive punt. */ 75 if (elf_kind (elf) != ELF_K_AR) 76 { 77 printf ("`%s' is no archive\n", argv[1]); 78 exit (1); 79 } 80 81 /* Now get the index of the archive. */ 82 arsym = elf_getarsym (elf, &narsym); 83 if (arsym == NULL) 84 { 85 printf ("Cannot get archive index: %s\n", elf_errmsg (-1)); 86 exit (1); 87 } 88 89 /* If there is no element in the index do nothing. There always is 90 an empty entry at the end which is included in the count and 91 which we want to skip. */ 92 if (narsym-- > 1) 93 while (narsym-- > 0) 94 { 95 Elf *subelf; 96 Elf_Arhdr *arhdr; 97 98 if (elf_rand (elf, arsym[narsym].as_off) != arsym[narsym].as_off) 99 { 100 printf ("random access for symbol `%s' fails: %s\n", 101 arsym[narsym].as_name, elf_errmsg (-1)); 102 exit (1); 103 } 104 105 subelf = elf_begin (fd, ELF_C_READ, elf); 106 if (subelf == NULL) 107 { 108 printf ("Cannot create ELF descriptor for archive member: %s\n", 109 elf_errmsg (-1)); 110 exit (1); 111 } 112 113 arhdr = elf_getarhdr (subelf); 114 if (arhdr == NULL) 115 { 116 printf ("Cannot get archive header for element `%s': %s\n", 117 arsym[narsym].as_name, elf_errmsg (-1)); 118 exit (1); 119 } 120 121 /* Now print what we actually want. */ 122 fprintf (fp, "%s in %s\n", arsym[narsym].as_name, arhdr->ar_name); 123 124 /* Free the ELF descriptor. */ 125 if (elf_end (subelf) != 0) 126 { 127 printf ("Error while freeing subELF descriptor: %s\n", 128 elf_errmsg (-1)); 129 exit (1); 130 } 131 } 132 133 /* Free the ELF descriptor. */ 134 if (elf_end (elf) != 0) 135 { 136 printf ("Error while freeing ELF descriptor: %s\n", elf_errmsg (-1)); 137 exit (1); 138 } 139 140 close (fd); 141 fclose (fp); 142 143 return 0; 144 } 145
