From ae581a19fbe896a797450b9d9573fb66f2735227 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 16:37:38 +0200 Subject: Adding upstream version 1.9.13p3. Signed-off-by: Daniel Baumann --- lib/util/nanosleep.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 lib/util/nanosleep.c (limited to 'lib/util/nanosleep.c') diff --git a/lib/util/nanosleep.c b/lib/util/nanosleep.c new file mode 100644 index 0000000..96082f5 --- /dev/null +++ b/lib/util/nanosleep.c @@ -0,0 +1,65 @@ +/* + * SPDX-License-Identifier: ISC + * + * Copyright (c) 2009-2011, 2013, 2017-2018 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_NANOSLEEP + +#include +#include +#ifdef HAVE_SYS_SELECT_H +#include +#endif /* HAVE_SYS_SELECT_H */ +#include +#include + +#include "sudo_compat.h" +#include "sudo_util.h" + +int +sudo_nanosleep(const struct timespec *ts, struct timespec *rts) +{ + struct timeval timeout, endtime, now; + int rval; + + if (ts->tv_sec == 0 && ts->tv_nsec < 1000) { + timeout.tv_sec = 0; + timeout.tv_usec = 1; + } else { + TIMESPEC_TO_TIMEVAL(&timeout, ts); + } + if (rts != NULL) { + if (gettimeofday(&endtime, NULL) == -1) + return -1; + sudo_timevaladd(&endtime, &timeout, &endtime); + } + rval = select(0, NULL, NULL, NULL, &timeout); + if (rts != NULL && rval == -1 && errno == EINTR) { + if (gettimeofday(&now, NULL) == -1) + return -1; + sudo_timevalsub(&endtime, &now, &endtime); + TIMEVAL_TO_TIMESPEC(&endtime, rts); + } + return rval; +} +#endif /* HAVE_NANOSLEEP */ -- cgit v1.2.3