sysdeps/posix/pathconf.c

   1 /* Copyright (C) 1991, 1995 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <errno.h>
  20 #include <stddef.h>
  21 #include <unistd.h>
  22 #include <fcntl.h>
  23
  24 /* Get file-specific information about PATH.  */
  25 long int
  26 __pathconf (const char *path, int name)
  27 {
  28   int fd = open (path, 0);
  29   if (fd >= 0)
  30     {
  31       long int value = __fpathconf (0, name);
  32       int save = errno;
  33       (void) close (fd);
  34       errno = save;
  35       return value;
  36     }
  37   return -1L;
  38 }
  39
  40 weak_alias (__pathconf, pathconf)