| /* write with error checking and retries. |
| Copyright (C) 2016-2018 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <support/xunistd.h> |
| |
| #include <support/check.h> |
| |
| void |
| xwrite (int fd, const void *buffer, size_t length) |
| { |
| const char *p = buffer; |
| const char *end = p + length; |
| while (p < end) |
| { |
| ssize_t ret = write (fd, p, end - p); |
| if (ret < 0) |
| FAIL_EXIT1 ("write of %zu bytes failed after %td: %m", |
| length, p - (const char *) buffer); |
| if (ret == 0) |
| FAIL_EXIT1 ("write return 0 after writing %td bytes of %zu", |
| p - (const char *) buffer, length); |
| p += ret; |
| } |
| } |