source/texk/kpathsea/file-p.c

   1 /* file-p.c: file predicates.
   2
   3    Copyright 1992, 1993, 1994, 2008 Karl Berry.
   4
   5    This library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    This library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public License
  16    along with this library; if not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #include <kpathsea/config.h>
  19
  20 #include <kpathsea/xstat.h>
  21
  22
  23 /* Test whether FILENAME1 and FILENAME2 are actually the same file.  If
  24    stat fails on either of the names, we return false, without error.  */
  25
  26 boolean
  27 same_file_p (const_string filename1,  const_string filename2)
  28 {
  29     struct stat sb1, sb2;
  30     /* These are put in variables only so the results can be inspected
  31        under gdb.  */
  32     int r1 = stat (filename1, &sb1);
  33     int r2 = stat (filename2, &sb2);
  34
  35     return r1 == 0 && r2 == 0 ? SAME_FILE_P (sb1, sb2) : false;
  36 }