posix/fpathconf.c

   1 /* Copyright (C) 1991, 1995, 1996, 1997 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 Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the 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    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <errno.h>
  20 #include <stddef.h>
  21 #include <unistd.h>
  22
  23
  24 /* Get file-specific information about descriptor FD.  */
  25 long int
  26 __fpathconf (fd, name)
  27      int fd;
  28      int name;
  29 {
  30   if (fd < 0)
  31     {
  32       __set_errno (EBADF);
  33       return -1;
  34     }
  35
  36   switch (name)
  37     {
  38     default:
  39       __set_errno (EINVAL);
  40       return -1;
  41
  42     case _PC_LINK_MAX:
  43     case _PC_MAX_CANON:
  44     case _PC_MAX_INPUT:
  45     case _PC_NAME_MAX:
  46     case _PC_PATH_MAX:
  47     case _PC_PIPE_BUF:
  48     case _PC_SOCK_MAXBUF:
  49     case _PC_CHOWN_RESTRICTED:
  50     case _PC_NO_TRUNC:
  51     case _PC_VDISABLE:
  52       break;
  53     }
  54
  55   __set_errno (ENOSYS);
  56   return -1;
  57 }
  58
  59 weak_alias (__fpathconf, fpathconf)
  60
  61 stub_warning (fpathconf)
  62 #include <stub-tag.h>