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support/support_write_file_string.c
39 строк
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Paul Eggert
Update copyright dates with scripts/update-copyrights
02 янв 2026, 00:42
02 янв 2026, 00:42
66f3e92
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/* Write a string to a file. Copyright (C) 2017-2026 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #include <fcntl.h> #include <string.h> #include <support/check.h> #include <support/xunistd.h> void support_write_file_string (const char *path, const char *contents) { int fd = xopen (path, O_CREAT | O_TRUNC | O_WRONLY, 0666); const char *end = contents + strlen (contents); for (const char *p = contents; p < end; ) { ssize_t ret = write (fd, p, end - p); if (ret < 0) FAIL_EXIT1 ("cannot write to \"%s\": %m", path); if (ret == 0) FAIL_EXIT1 ("zero-length write to \"%s\"", path); p += ret; } xclose (fd); }