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6ec2e0f5 SDJ |
1 | /* Report a save- or restore-cwd failure in our openat replacement and then exit. |
2 | ||
c0c3707f | 3 | Copyright (C) 2005-2006, 2008-2019 Free Software Foundation, Inc. |
6ec2e0f5 SDJ |
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 | |
c0c3707f | 16 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ |
6ec2e0f5 SDJ |
17 | |
18 | #include <config.h> | |
19 | ||
20 | #include "openat.h" | |
21 | ||
22 | #include <stdlib.h> | |
23 | ||
24 | #ifndef GNULIB_LIBPOSIX | |
25 | # include "error.h" | |
26 | #endif | |
27 | ||
28 | #include "exitfail.h" | |
29 | ||
30 | #include "gettext.h" | |
31 | #define _(msgid) gettext (msgid) | |
32 | ||
33 | _Noreturn void | |
34 | openat_save_fail (int errnum) | |
35 | { | |
36 | #ifndef GNULIB_LIBPOSIX | |
37 | error (exit_failure, errnum, | |
38 | _("unable to record current working directory")); | |
39 | #endif | |
40 | /* _Noreturn cannot be applied to error, since it returns | |
41 | when its first argument is 0. To help compilers understand that this | |
42 | function does not return, call abort. Also, the abort is a | |
43 | safety feature if exit_failure is 0 (which shouldn't happen). */ | |
44 | abort (); | |
45 | } | |
46 | ||
47 | ||
48 | /* Exit with an error about failure to restore the working directory | |
49 | during an openat emulation. The caller must ensure that fd 2 is | |
50 | not a just-opened fd, even when openat_safer is not in use. */ | |
51 | ||
52 | _Noreturn void | |
53 | openat_restore_fail (int errnum) | |
54 | { | |
55 | #ifndef GNULIB_LIBPOSIX | |
56 | error (exit_failure, errnum, | |
57 | _("failed to return to initial working directory")); | |
58 | #endif | |
59 | ||
60 | /* As above. */ | |
61 | abort (); | |
62 | } |