binutils/bfdtest2.c

   1 /* A program to test BFD.
   2    Copyright (C) 2012-2022 Free Software Foundation, Inc.
   3
   4    This file is part of the GNU Binutils.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 #include "sysdep.h"
  22 #include "bfd.h"
  23
  24 static void
  25 die (const char *s)
  26 {
  27   printf ("oops: %s\n", s);
  28   exit (1);
  29 }
  30
  31 static void *
  32 iovec_open (struct bfd *nbfd ATTRIBUTE_UNUSED, void *open_closure)
  33 {
  34   return open_closure;
  35 }
  36
  37 static file_ptr iovec_read (struct bfd *nbfd ATTRIBUTE_UNUSED,
  38                             void *stream, void *buf, file_ptr nbytes,
  39                             file_ptr offset)
  40 {
  41   FILE* file = (FILE*) stream;
  42
  43   if (fseek(file, offset, SEEK_SET) != 0)
  44     die ("fseek error");
  45
  46   return fread (buf, 1, nbytes, file);
  47 }
  48
  49 static int
  50 iovec_stat (struct bfd *abfd ATTRIBUTE_UNUSED,
  51             void *stream, struct stat *sb)
  52 {
  53   return fstat (fileno ((FILE*) stream), sb);
  54 }
  55
  56 static bool
  57 check_format_any (struct bfd *abfd, bfd_format format)
  58 {
  59   char** targets = NULL;
  60
  61   if (bfd_check_format_matches (abfd, format, &targets))
  62     return true;
  63
  64   if (targets)
  65     {
  66       bfd_find_target (targets[0], abfd);
  67
  68       return bfd_check_format (abfd, format);
  69     }
  70
  71   return false;
  72 }
  73
  74 int
  75 main (int argc, const char** argv)
  76 {
  77   FILE* file;
  78   bfd *abfd, *mbfd;
  79
  80   if (argc < 2)
  81     die ("Usage: test archivefile");
  82
  83   file = fopen(argv[1], "rb");
  84   if (!file)
  85     die ("file not found");
  86
  87   abfd = bfd_openr_iovec (argv[1], 0, iovec_open, file,
  88                           iovec_read, NULL, iovec_stat);
  89   if (!abfd)
  90     die ("error opening file");
  91
  92   if (!check_format_any (abfd, bfd_archive))
  93     die ("not an archive");
  94
  95   mbfd = bfd_openr_next_archived_file (abfd, 0);
  96   if (!mbfd)
  97     die ("error opening archive member");
  98
  99   if (!bfd_close (mbfd))
 100     die ("error closing archive member");
 101
 102   if (!bfd_close (abfd))
 103     die ("error closing archive");
 104
 105   return 0;
 106 }