1 | /* -*- buffer-read-only: t -*- vi: set ro: */
|
---|
2 | /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
|
---|
3 | /* Tests of unsetenv.
|
---|
4 | Copyright (C) 2009, 2010 Free Software Foundation, Inc.
|
---|
5 |
|
---|
6 | This program is free software: you can redistribute it and/or modify
|
---|
7 | it under the terms of the GNU General Public License as published by
|
---|
8 | the Free Software Foundation; either version 3 of the License, or
|
---|
9 | (at your option) any later version.
|
---|
10 |
|
---|
11 | This program is distributed in the hope that it will be useful,
|
---|
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
14 | GNU General Public License for more details.
|
---|
15 |
|
---|
16 | You should have received a copy of the GNU General Public License
|
---|
17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
---|
18 |
|
---|
19 | /* Written by Eric Blake <ebb9@byu.net>, 2009. */
|
---|
20 |
|
---|
21 | #include <stdlib.h>
|
---|
22 |
|
---|
23 | #include <errno.h>
|
---|
24 | #include <string.h>
|
---|
25 | #include <unistd.h>
|
---|
26 | #include <stdio.h>
|
---|
27 |
|
---|
28 | #define ASSERT(expr) \
|
---|
29 | do \
|
---|
30 | { \
|
---|
31 | if (!(expr)) \
|
---|
32 | { \
|
---|
33 | fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
|
---|
34 | abort (); \
|
---|
35 | } \
|
---|
36 | } \
|
---|
37 | while (0)
|
---|
38 |
|
---|
39 | int
|
---|
40 | main (void)
|
---|
41 | {
|
---|
42 | char entry[] = "b=2";
|
---|
43 |
|
---|
44 | /* Test removal when multiple entries present. */
|
---|
45 | ASSERT (putenv ((char *) "a=1") == 0);
|
---|
46 | ASSERT (putenv (entry) == 0);
|
---|
47 | entry[0] = 'a'; /* Unspecified what getenv("a") would be at this point. */
|
---|
48 | ASSERT (unsetenv ("a") == 0); /* Both entries will be removed. */
|
---|
49 | ASSERT (getenv ("a") == NULL);
|
---|
50 | ASSERT (unsetenv ("a") == 0);
|
---|
51 |
|
---|
52 | /* Required to fail with EINVAL. */
|
---|
53 | errno = 0;
|
---|
54 | ASSERT (unsetenv ("") == -1);
|
---|
55 | ASSERT (errno == EINVAL);
|
---|
56 | errno = 0;
|
---|
57 | ASSERT (unsetenv ("a=b") == -1);
|
---|
58 | ASSERT (errno == EINVAL);
|
---|
59 | #if 0
|
---|
60 | /* glibc and gnulib's implementation guarantee this, but POSIX no
|
---|
61 | longer requires it: http://austingroupbugs.net/view.php?id=185 */
|
---|
62 | errno = 0;
|
---|
63 | ASSERT (unsetenv (NULL) == -1);
|
---|
64 | ASSERT (errno == EINVAL);
|
---|
65 | #endif
|
---|
66 |
|
---|
67 | return 0;
|
---|
68 | }
|
---|