mirror of
https://libwebsockets.org/repo/libwebsockets
synced 2024-11-22 00:57:52 +00:00
143 lines
3.3 KiB
C
143 lines
3.3 KiB
C
/*
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* libwebsockets - small server side websockets and web server implementation
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*
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* Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#if !defined(_GNU_SOURCE)
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#define _GNU_SOURCE
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#endif
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#include "private-lib-core.h"
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/*
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* Normally you don't want this, use lws_sul instead inside the event loop.
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* But sometimes for drivers it makes sense, so there's an internal-only
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* crossplatform api for it.
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*/
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void
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lws_msleep(unsigned int ms)
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{
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usleep((unsigned int)(ms * LWS_US_PER_MS));
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}
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lws_usec_t
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lws_now_usecs(void)
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{
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#if defined(LWS_HAVE_CLOCK_GETTIME)
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struct timespec ts;
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if (clock_gettime(CLOCK_MONOTONIC, &ts))
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return 0;
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return (((lws_usec_t)ts.tv_sec) * LWS_US_PER_SEC) +
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((lws_usec_t)ts.tv_nsec / LWS_NS_PER_US);
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#else
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struct timeval now;
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gettimeofday(&now, NULL);
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return (((lws_usec_t)now.tv_sec) * LWS_US_PER_SEC) +
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(lws_usec_t)now.tv_usec;
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#endif
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}
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size_t
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lws_get_random(struct lws_context *context, void *buf, size_t len)
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{
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#if defined(__COVERITY__)
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memset(buf, 0, len);
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return len;
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#else
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/* coverity[tainted_scalar] */
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return (size_t)read(context->fd_random, (char *)buf, len);
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#endif
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}
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void lwsl_emit_syslog(int level, const char *line)
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{
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int syslog_level = LOG_DEBUG;
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switch (level) {
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case LLL_ERR:
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syslog_level = LOG_ERR;
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break;
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case LLL_WARN:
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syslog_level = LOG_WARNING;
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break;
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case LLL_NOTICE:
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syslog_level = LOG_NOTICE;
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break;
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case LLL_INFO:
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syslog_level = LOG_INFO;
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break;
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}
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syslog(syslog_level, "%s", line);
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}
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int
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lws_plat_write_cert(struct lws_vhost *vhost, int is_key, int fd, void *buf,
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size_t len)
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{
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ssize_t n;
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n = write(fd, buf, len);
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if (n < 0 || fsync(fd))
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return 1;
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if (lseek(fd, 0, SEEK_SET) < 0)
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return 1;
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return (size_t)n != len;
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}
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int
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lws_plat_recommended_rsa_bits(void)
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{
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return 4096;
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}
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/*
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* Platform-specific ntpclient server configuration
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*/
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int
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lws_plat_ntpclient_config(struct lws_context *context)
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{
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#if defined(LWS_HAVE_GETENV)
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char *ntpsrv = getenv("LWS_NTP_SERVER");
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if (ntpsrv && strlen(ntpsrv) < 64) {
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lws_system_blob_t *blob = lws_system_get_blob(context,
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LWS_SYSBLOB_TYPE_NTP_SERVER, 0);
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if (!blob)
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return 0;
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lws_system_blob_direct_set(blob, (const uint8_t *)ntpsrv,
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strlen(ntpsrv));
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return 1;
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}
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#endif
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return 0;
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}
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