lib/qset-acl.c

   1 /* qset-acl.c - set access control list equivalent to a mode
   2
   3    Copyright (C) 2002-2003, 2005-2018 Free Software Foundation, Inc.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.
  17
  18    Written by Paul Eggert and Andreas Gruenbacher, and Bruno Haible.  */
  19
  20 #include <config.h>
  21
  22 #define ACL_INTERNAL_INLINE _GL_EXTERN_INLINE
  23
  24 #include <string.h>
  25 #include "acl.h"
  26
  27 #include "acl-internal.h"
  28
  29
  30 /* Set the access control lists of a file. If DESC is a valid file
  31    descriptor, use file descriptor operations where available, else use
  32    filename based operations on NAME.  If access control lists are not
  33    available, fchmod the target file to MODE.  Also sets the
  34    non-permission bits of the destination file (S_ISUID, S_ISGID, S_ISVTX)
  35    to those from MODE if any are set.
  36    Return 0 if successful.  Return -1 and set errno upon failure.  */
  37
  38 int
  39 qset_acl (char const *name, int desc, mode_t mode)
  40 {
  41   struct permission_context ctx;
  42   int ret;
  43
  44   memset (&ctx, 0, sizeof ctx);
  45   ctx.mode = mode;
  46   ret = set_permissions (&ctx, name, desc);
  47   free_permission_context (&ctx);
  48   return ret;
  49 }