Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/coreutils/src/gnulib/lib/dup-safer-flag.c |
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1 | /* Duplicate a file descriptor result, avoiding clobbering | - |
2 | STD{IN,OUT,ERR}_FILENO, with specific flags. | - |
3 | - | |
4 | Copyright (C) 2001, 2004-2006, 2009-2018 Free Software Foundation, Inc. | - |
5 | - | |
6 | This program is free software: you can redistribute it and/or modify | - |
7 | it under the terms of the GNU General Public License as published by | - |
8 | the Free Software Foundation; either version 3 of the License, or | - |
9 | (at your option) any later version. | - |
10 | - | |
11 | This program is distributed in the hope that it will be useful, | - |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | - |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | - |
14 | GNU General Public License for more details. | - |
15 | - | |
16 | You should have received a copy of the GNU General Public License | - |
17 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ | - |
18 | - | |
19 | /* Written by Paul Eggert and Eric Blake. */ | - |
20 | - | |
21 | #include <config.h> | - |
22 | - | |
23 | /* Specification. */ | - |
24 | #include "unistd-safer.h" | - |
25 | - | |
26 | #include <fcntl.h> | - |
27 | #include <unistd.h> | - |
28 | - | |
29 | /* Like dup, but do not return STDIN_FILENO, STDOUT_FILENO, or | - |
30 | STDERR_FILENO. If FLAG contains O_CLOEXEC, behave like | - |
31 | fcntl(F_DUPFD_CLOEXEC) rather than fcntl(F_DUPFD). */ | - |
32 | - | |
33 | int | - |
34 | dup_safer_flag (int fd, int flag) | - |
35 | { | - |
36 | return fcntl (fd, (flag & O_CLOEXEC) ? F_DUPFD_CLOEXEC : F_DUPFD, never executed: return rpl_fcntl (fd, (flag & 02000000 ) ? 1030 : 0 , 2 + 1); | 0 |
37 | STDERR_FILENO + 1); never executed: return rpl_fcntl (fd, (flag & 02000000 ) ? 1030 : 0 , 2 + 1); | 0 |
38 | } | - |
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