| Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/coreutils/src/gl/lib/fd-reopen.c |
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| 1 | /* Invoke open, but return either a desired file descriptor or -1. | - | ||||||||||||
| 2 | - | |||||||||||||
| 3 | Copyright (C) 2005-2018 Free Software Foundation, Inc. | - | ||||||||||||
| 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 | - | ||||||||||||
| 16 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ | - | ||||||||||||
| 17 | - | |||||||||||||
| 18 | /* Written by Paul Eggert. */ | - | ||||||||||||
| 19 | - | |||||||||||||
| 20 | #include <config.h> | - | ||||||||||||
| 21 | - | |||||||||||||
| 22 | #include "fd-reopen.h" | - | ||||||||||||
| 23 | - | |||||||||||||
| 24 | #include <errno.h> | - | ||||||||||||
| 25 | #include <fcntl.h> | - | ||||||||||||
| 26 | #include <unistd.h> | - | ||||||||||||
| 27 | - | |||||||||||||
| 28 | /* Open a file to a particular file descriptor. This is like standard | - | ||||||||||||
| 29 | 'open', except it always returns DESIRED_FD if successful. */ | - | ||||||||||||
| 30 | - | |||||||||||||
| 31 | int | - | ||||||||||||
| 32 | fd_reopen (int desired_fd, char const *file, int flags, mode_t mode) | - | ||||||||||||
| 33 | { | - | ||||||||||||
| 34 | int fd = open (file, flags, mode); | - | ||||||||||||
| 35 | - | |||||||||||||
| 36 | if (fd == desired_fd || fd < 0)
| 14-219539 | ||||||||||||
| 37 | return fd; executed 219553 times by 2 tests: return fd;Executed by:
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| 38 | else | - | ||||||||||||
| 39 | { | - | ||||||||||||
| 40 | int fd2 = dup2 (fd, desired_fd); | - | ||||||||||||
| 41 | int saved_errno = errno; | - | ||||||||||||
| 42 | close (fd); | - | ||||||||||||
| 43 | errno = saved_errno; | - | ||||||||||||
| 44 | return fd2; executed 4809 times by 4 tests: return fd2;Executed by:
| 4809 | ||||||||||||
| 45 | } | - | ||||||||||||
| 46 | } | - | ||||||||||||
| Source code | Switch to Preprocessed file |