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glibc  2.9
lchmod.c
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00001 /* lchmod -- Change the protections of a file or symbolic link.  Hurd version.
00002    Copyright (C) 2002 Free Software Foundation, Inc.
00003    This file is part of the GNU C Library.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <errno.h>
00021 #include <stddef.h>
00022 #include <sys/stat.h>
00023 #include <fcntl.h>
00024 #include <hurd.h>
00025 
00026 /* Change the protections of FILE to MODE.  */
00027 int
00028 lchmod (const char *file, mode_t mode)
00029 {
00030   error_t err;
00031   file_t port = __file_name_lookup (file, O_NOLINK, 0);
00032   if (port == MACH_PORT_NULL)
00033     return -1;
00034   err = __file_chmod (port, mode);
00035   __mach_port_deallocate (__mach_task_self (), port);
00036   if (err)
00037     return __hurd_fail (err);
00038   return 0;
00039 }