emulated/lchmod.c

   1 /*
   2  * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 #include <sys/types.h>
  25 #include <sys/stat.h>
  26 #include <sys/attr.h>
  27 #include <unistd.h>
  28 #include <strings.h>
  29
  30 int
  31 lchmod(const char *path, mode_t mode)
  32 {
  33         struct stat s;
  34         struct attrlist a;
  35         int m;
  36
  37         if(lstat(path, &s) < 0)
  38                 return -1;
  39         if((s.st_mode & S_IFMT) != S_IFLNK)
  40                 return chmod(path, mode);
  41         bzero(&a, sizeof(a));
  42         a.bitmapcount = ATTR_BIT_MAP_COUNT;
  43         a.commonattr = ATTR_CMN_ACCESSMASK;
  44         m = mode;
  45         return setattrlist(path, &a, &m, sizeof(int), FSOPT_NOFOLLOW);
  46 }