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authorAndreas Baumann <mail@andreasbaumann.cc>2023-02-11 06:20:24 (GMT)
committerAndreas Baumann <mail@andreasbaumann.cc>2023-02-11 06:20:24 (GMT)
commitf867d7b44080fa9716deeff4476275f9a489879f (patch)
treebc964662fc3300dc626fb6d833d8ed5c8f46eca7 /gl/cloexec.h
parent9734c439cba0a02b087e50789e94ec9b07754608 (diff)
parentc07206f2ccc2356aa74bc6813a94c2190017d44e (diff)
downloadmonitoring-plugins-f867d7b44080fa9716deeff4476275f9a489879f.tar.gz
Merge branch 'master' into curlfixes
Diffstat (limited to 'gl/cloexec.h')
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1/* cloexec.c - set or clear the close-on-exec descriptor flag
2
3 Copyright (C) 2004, 2009-2023 Free Software Foundation, Inc.
4
5 This file is free software: you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as
7 published by the Free Software Foundation; either version 2.1 of the
8 License, or (at your option) any later version.
9
10 This file 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 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public License
16 along with this program. If not, see <https://www.gnu.org/licenses/>. */
17
18/* Set the 'FD_CLOEXEC' flag of DESC if VALUE is true,
19 or clear the flag if VALUE is false.
20 Return 0 on success, or -1 on error with 'errno' set.
21
22 Note that on MingW, this function does NOT protect DESC from being
23 inherited into spawned children. Instead, either use dup_cloexec
24 followed by closing the original DESC, or use interfaces such as
25 open or pipe2 that accept flags like O_CLOEXEC to create DESC
26 non-inheritable in the first place. */
27
28int set_cloexec_flag (int desc, bool value);
29
30/* Duplicates a file handle FD, while marking the copy to be closed
31 prior to exec or spawn. Returns -1 and sets errno if FD could not
32 be duplicated. */
33
34int dup_cloexec (int fd);