tests: test some of the *-safer modules
[pspp] / tests / test-open.c
1 /* Test of opening a file descriptor.
2    Copyright (C) 2007-2009 Free Software Foundation, Inc.
3
4    This program is free software: you can redistribute it and/or modify
5    it under the terms of the GNU General Public License as published by
6    the Free Software Foundation; either version 3 of the License, or
7    (at your option) any later version.
8
9    This program is distributed in the hope that it will be useful,
10    but WITHOUT ANY WARRANTY; without even the implied warranty of
11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12    GNU General Public License for more details.
13
14    You should have received a copy of the GNU General Public License
15    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
16
17 /* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
18
19 #include <config.h>
20
21 #include <fcntl.h>
22
23 #include <stdio.h>
24 #include <stdlib.h>
25
26 #if GNULIB_FCNTL_SAFER
27 # include "fcntl--.h"
28 #endif
29
30 #define ASSERT(expr) \
31   do                                                                         \
32     {                                                                        \
33       if (!(expr))                                                           \
34         {                                                                    \
35           fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
36           fflush (stderr);                                                   \
37           abort ();                                                          \
38         }                                                                    \
39     }                                                                        \
40   while (0)
41
42 int
43 main ()
44 {
45   ASSERT (open ("nonexist.ent/", O_CREAT | O_RDONLY, 0600) < 0);
46   ASSERT (open ("/dev/null/", O_RDONLY) < 0);
47
48   ASSERT (open ("/dev/null", O_RDONLY) >= 0);
49
50   return 0;
51 }