sys/umaskx_np.c

   1 /*
   2  * Copyright (c) 2004 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 #include <sys/types.h>
  24 #include <sys/acl.h>
  25 #include <errno.h>
  26 #include <sys/syscall.h>
  27 #include <unistd.h>
  28 #include <fcntl.h>
  29
  30 int
  31 umaskx_np(filesec_t fsec)
  32 {
  33         acl_t acl = NULL;
  34         size_t size = 0;
  35         mode_t newmask = 0;
  36
  37         if (fsec)
  38         {
  39                 if ((filesec_get_property(fsec, FILESEC_MODE, &newmask) != 0) && (errno != ENOENT))
  40                         return(-1);
  41
  42                 if (((filesec_get_property(fsec, FILESEC_ACL_RAW, &acl) != 0) ||
  43                         (filesec_get_property(fsec, FILESEC_ACL_ALLOCSIZE, &size) != 0)) &&
  44                     (errno != ENOENT))
  45                         return(-1);
  46                 if (size == 0)
  47                         acl = NULL;
  48         }
  49         return syscall(SYS_umask_extended, newmask, acl);
  50 }