Mercurial > gnulib
view lib/dup-safer.c @ 40209:c43e83386661
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author | Karl Berry <karl@freefriends.org> |
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date | Fri, 08 Mar 2019 09:27:47 -0800 |
parents | b06060465f09 |
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/* Invoke dup, but avoid some glitches. Copyright (C) 2001, 2004-2006, 2009-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ /* Written by Paul Eggert. */ #include <config.h> #include "unistd-safer.h" #include <fcntl.h> #include <unistd.h> /* Like dup, but do not return STDIN_FILENO, STDOUT_FILENO, or STDERR_FILENO. */ int dup_safer (int fd) { return fcntl (fd, F_DUPFD, STDERR_FILENO + 1); }