Update libwebsockets to 3.1 (plus UWP patch)

thirdparty/libwebsockets/lib/plat/unix/unix-misc.c

@@ -0,0 +1,83 @@
+/*
+ * libwebsockets - small server side websockets and web server implementation
+ *
+ * Copyright (C) 2010-2018 Andy Green <andy@warmcat.com>
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation:
+ *  version 2.1 of the License.
+ *
+ *  This library 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
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ *  MA  02110-1301  USA
+ */
+
+#define _GNU_SOURCE
+#include "core/private.h"
+
+
+uint64_t
+lws_time_in_microseconds(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return ((unsigned long long)tv.tv_sec * 1000000LL) + tv.tv_usec;
+}
+
+LWS_VISIBLE int
+lws_get_random(struct lws_context *context, void *buf, int len)
+{
+	return read(context->fd_random, (char *)buf, len);
+}
+
+LWS_VISIBLE void lwsl_emit_syslog(int level, const char *line)
+{
+	int syslog_level = LOG_DEBUG;
+
+	switch (level) {
+	case LLL_ERR:
+		syslog_level = LOG_ERR;
+		break;
+	case LLL_WARN:
+		syslog_level = LOG_WARNING;
+		break;
+	case LLL_NOTICE:
+		syslog_level = LOG_NOTICE;
+		break;
+	case LLL_INFO:
+		syslog_level = LOG_INFO;
+		break;
+	}
+	syslog(syslog_level, "%s", line);
+}
+
+
+int
+lws_plat_write_cert(struct lws_vhost *vhost, int is_key, int fd, void *buf,
+			int len)
+{
+	int n;
+
+	n = write(fd, buf, len);
+
+	fsync(fd);
+	if (lseek(fd, 0, SEEK_SET) < 0)
+		return 1;
+
+	return n != len;
+}
+
+
+int
+lws_plat_recommended_rsa_bits(void)
+{
+	return 4096;
+}