From f8e5c55a036f0e2e2a958e30456270f3f9eba933 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 14:52:13 +0200 Subject: Adding upstream version 1.9.5p2. Signed-off-by: Daniel Baumann --- lib/util/pipe2.c | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 lib/util/pipe2.c (limited to 'lib/util/pipe2.c') diff --git a/lib/util/pipe2.c b/lib/util/pipe2.c new file mode 100644 index 0000000..43527a0 --- /dev/null +++ b/lib/util/pipe2.c @@ -0,0 +1,64 @@ +/* + * SPDX-License-Identifier: ISC + * + * Copyright (c) 2017 Todd C. Miller + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * This is an open source non-commercial project. Dear PVS-Studio, please check it. + * PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com + */ + +#include + +#ifndef HAVE_PIPE2 + +#include +#include + +#include "sudo_compat.h" + +int +sudo_pipe2(int fildes[2], int flags) +{ + if (pipe(fildes) != 0) + return -1; + + if (ISSET(flags, O_CLOEXEC)) { + if (fcntl(fildes[0], F_SETFD, FD_CLOEXEC) == -1) + goto bad; + if (fcntl(fildes[1], F_SETFD, FD_CLOEXEC) == -1) + goto bad; + } + if (ISSET(flags, O_NONBLOCK)) { + int oflags = fcntl(fildes[0], F_GETFL, 0); + if (oflags == -1) + goto bad; + if (fcntl(fildes[0], F_SETFL, oflags | O_NONBLOCK) == -1) + goto bad; + oflags = fcntl(fildes[1], F_GETFL, 0); + if (oflags == -1) + goto bad; + if (fcntl(fildes[1], F_SETFL, oflags | O_NONBLOCK) == -1) + goto bad; + } + return 0; +bad: + close(fildes[0]); + close(fildes[1]); + return -1; +} + +#endif /* HAVE_PIPE2 */ -- cgit v1.2.3