pathconf.c

来自「Glibc 2.3.2源代码(解压后有100多M)」· C语言 代码 · 共 42 行

/* Copyright (C) 1991, 1992, 1994, 1995, 1997 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <errno.h>
#include <stddef.h>
#include <sys/stat.h>
#include <hurd.h>
#include <hurd/fd.h>

/* Get file-specific information about FILE.  */
long int
__pathconf (const char *file, int name)
{
  error_t err;
  int value;			/* RPC returns an `int', not a `long int'.  */
  file_t port = __file_name_lookup (file, 0, 0);
  if (port == MACH_PORT_NULL)
    return -1L;
  err = __io_pathconf (port, name, &value);
  __mach_port_deallocate (__mach_task_self (), port);
  if (err)
    return __hurd_fail (err), -1L;
  return value;
}

weak_alias (__pathconf, pathconf)