ndhc/sys.c
Nicholas J. Kain 8db8c5589d Replace CMake with GNU Make.
There was previously support for both build systems, but ndhc is
undemanding and there is no point in maintaining a complex
CMake build.
2022-01-22 18:39:41 -05:00

58 lines
2.1 KiB
C

/* sys.c - misc portable functions
*
* Copyright 2010-2020 Nicholas J. Kain <njkain at gmail dot com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <time.h>
#include "nk/log.h"
#include "ndhc.h"
#include "sys.h"
long long IMPL_curms(const char *parent_function)
{
struct timespec ts;
if (clock_gettime(CLOCK_MONOTONIC, &ts) < 0) {
suicide("%s: (%s) clock_gettime failed: %s",
client_config.interface, parent_function, strerror(errno));
}
return ts.tv_sec * 1000LL + ts.tv_nsec / 1000000LL;
}
void setup_signals_subprocess(void)
{
sigset_t mask;
if (sigprocmask(0, 0, &mask) < 0)
suicide("sigprocmask failed");
if (sigaddset(&mask, SIGPIPE))
suicide("sigaddset failed");
if (sigprocmask(SIG_SETMASK, &mask, (sigset_t *)0) < 0)
suicide("sigprocmask failed");
}