src/basic/umask-util.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2010 Lennart Poettering
   8 ***/
   9
  10 #include <stdbool.h>
  11 #include <sys/stat.h>
  12 #include <sys/types.h>
  13
  14 #include "macro.h"
  15
  16 static inline void umaskp(mode_t *u) {
  17         umask(*u);
  18 }
  19
  20 #define _cleanup_umask_ _cleanup_(umaskp)
  21
  22 struct _umask_struct_ {
  23         mode_t mask;
  24         bool quit;
  25 };
  26
  27 static inline void _reset_umask_(struct _umask_struct_ *s) {
  28         umask(s->mask);
  29 };
  30
  31 #define RUN_WITH_UMASK(mask)                                            \
  32         for (_cleanup_(_reset_umask_) struct _umask_struct_ _saved_umask_ = { umask(mask), false }; \
  33              !_saved_umask_.quit ;                                      \
  34              _saved_umask_.quit = true)