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2714c5f3 | 1 | /* Write a string to a file. |
581c785b | 2 | Copyright (C) 2017-2022 Free Software Foundation, Inc. |
2714c5f3 FW |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library 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 GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
2714c5f3 FW |
18 | |
19 | #include <fcntl.h> | |
20 | #include <string.h> | |
21 | #include <support/check.h> | |
f58bd7f0 | 22 | #include <support/xunistd.h> |
2714c5f3 FW |
23 | |
24 | void | |
25 | support_write_file_string (const char *path, const char *contents) | |
26 | { | |
27 | int fd = xopen (path, O_CREAT | O_TRUNC | O_WRONLY, 0666); | |
28 | const char *end = contents + strlen (contents); | |
29 | for (const char *p = contents; p < end; ) | |
30 | { | |
31 | ssize_t ret = write (fd, p, end - p); | |
32 | if (ret < 0) | |
33 | FAIL_EXIT1 ("cannot write to \"%s\": %m", path); | |
34 | if (ret == 0) | |
35 | FAIL_EXIT1 ("zero-length write to \"%s\"", path); | |
36 | p += ret; | |
37 | } | |
38 | xclose (fd); | |
39 | } |