[deb_shairplay.git] / src / lib / httpd.c

/**
 *  Copyright (C) 2011-2012  Juho Vähä-Herttua
 *
 *  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; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  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.
 */

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <assert.h>

#include "httpd.h"
#include "netutils.h"
#include "http_request.h"
#include "compat.h"
#include "logger.h"

struct http_connection_s {
	int connected;

	int socket_fd;
	void *user_data;
	http_request_t *request;
};
typedef struct http_connection_s http_connection_t;

struct httpd_s {
	logger_t *logger;
	httpd_callbacks_t callbacks;

	int use_rtsp;

	int max_connections;
	int open_connections;
	http_connection_t *connections;

	/* These variables only edited mutex locked */
	int running;
	int joined;
	thread_handle_t thread;
	mutex_handle_t run_mutex;

	/* Server fds for accepting connections */
	int server_fd4;
	int server_fd6;
};

httpd_t *
httpd_init(logger_t *logger, httpd_callbacks_t *callbacks, int max_connections, int use_rtsp)
{
	httpd_t *httpd;

	assert(logger);
	assert(callbacks);
	assert(max_connections > 0);

	/* Allocate the httpd_t structure */
	httpd = calloc(1, sizeof(httpd_t));
	if (!httpd) {
		return NULL;
	}

	httpd->use_rtsp = !!use_rtsp;
	httpd->max_connections = max_connections;
	httpd->connections = calloc(max_connections, sizeof(http_connection_t));
	if (!httpd->connections) {
		free(httpd);
		return NULL;
	}

	/* Use the logger provided */
	httpd->logger = logger;

	/* Save callback pointers */
	memcpy(&httpd->callbacks, callbacks, sizeof(httpd_callbacks_t));

	/* Initial status joined */
	httpd->running = 0;
	httpd->joined = 1;

	return httpd;
}

void
httpd_destroy(httpd_t *httpd)
{
	if (httpd) {
		httpd_stop(httpd);

		free(httpd->connections);
		free(httpd);
	}
}

static void
httpd_add_connection(httpd_t *httpd, int fd, unsigned char *local, int local_len, unsigned char *remote, int remote_len)
{
	int i;

	for (i=0; i<httpd->max_connections; i++) {
		if (!httpd->connections[i].connected) {
			break;
		}
	}
	if (i == httpd->max_connections) {
		/* This code should never be reached, we do not select server_fds when full */
		logger_log(httpd->logger, LOGGER_INFO, "Max connections reached");
		shutdown(fd, SHUT_RDWR);
		closesocket(fd);
		return;
	}

	httpd->open_connections++;
	httpd->connections[i].socket_fd = fd;
	httpd->connections[i].connected = 1;
	httpd->connections[i].user_data = httpd->callbacks.conn_init(httpd->callbacks.opaque, local, local_len, remote, remote_len);
}

static int
httpd_accept_connection(httpd_t *httpd, int server_fd, int is_ipv6)
{
	struct sockaddr_storage remote_saddr;
	socklen_t remote_saddrlen;
	struct sockaddr_storage local_saddr;
	socklen_t local_saddrlen;
	unsigned char *local, *remote;
	int local_len, remote_len;
	int ret, fd;

	remote_saddrlen = sizeof(remote_saddr);
	fd = accept(server_fd, (struct sockaddr *)&remote_saddr, &remote_saddrlen);
	if (fd == -1) {
		/* FIXME: Error happened */
		return -1;
	}

	local_saddrlen = sizeof(local_saddr);
	ret = getsockname(fd, (struct sockaddr *)&local_saddr, &local_saddrlen);
	if (ret == -1) {
		closesocket(fd);
		return 0;
	}

	logger_log(httpd->logger, LOGGER_INFO, "Accepted %s client on socket %d",
	           (is_ipv6 ? "IPv6"  : "IPv4"), fd);
	local = netutils_get_address(&local_saddr, &local_len);
	remote = netutils_get_address(&remote_saddr, &remote_len);

	httpd_add_connection(httpd, fd, local, local_len, remote, remote_len);
	return 1;
}

static void
httpd_remove_connection(httpd_t *httpd, http_connection_t *connection)
{
	if (connection->request) {
		http_request_destroy(connection->request);
		connection->request = NULL;
	}
	httpd->callbacks.conn_destroy(connection->user_data);
	shutdown(connection->socket_fd, SHUT_WR);
	closesocket(connection->socket_fd);
	connection->connected = 0;
	httpd->open_connections--;
}

static THREAD_RETVAL
httpd_thread(void *arg)
{
	httpd_t *httpd = arg;
	char buffer[1024];
	int i;

	assert(httpd);

	while (1) {
		fd_set rfds;
		struct timeval tv;
		int nfds=0;
		int ret;

		MUTEX_LOCK(httpd->run_mutex);
		if (!httpd->running) {
			MUTEX_UNLOCK(httpd->run_mutex);
			break;
		}
		MUTEX_UNLOCK(httpd->run_mutex);

		/* Set timeout value to 5ms */
		tv.tv_sec = 1;
		tv.tv_usec = 5000;

		/* Get the correct nfds value and set rfds */
		FD_ZERO(&rfds);
		if (httpd->open_connections < httpd->max_connections) {
			FD_SET(httpd->server_fd4, &rfds);
			nfds = httpd->server_fd4+1;
			if (httpd->server_fd6 != -1) {
				FD_SET(httpd->server_fd6, &rfds);
				if (nfds <= httpd->server_fd6) {
					nfds = httpd->server_fd6+1;
				}
			}
		}
		for (i=0; i<httpd->max_connections; i++) {
			int socket_fd;
			if (!httpd->connections[i].connected) {
				continue;
			}
			socket_fd = httpd->connections[i].socket_fd;
			FD_SET(socket_fd, &rfds);
			if (nfds <= socket_fd) {
				nfds = socket_fd+1;
			}
		}

		ret = select(nfds, &rfds, NULL, NULL, &tv);
		if (ret == 0) {
			/* Timeout happened */
			continue;
		} else if (ret == -1) {
			/* FIXME: Error happened */
			logger_log(httpd->logger, LOGGER_INFO, "Error in select");
			break;
		}

		if (FD_ISSET(httpd->server_fd4, &rfds)) {
			ret = httpd_accept_connection(httpd, httpd->server_fd4, 0);
			if (ret == -1) {
				break;
			} else if (ret == 0) {
				continue;
			}
		}
		if (httpd->server_fd6 != -1 && FD_ISSET(httpd->server_fd6, &rfds)) {
			ret = httpd_accept_connection(httpd, httpd->server_fd6, 1);
			if (ret == -1) {
				break;
			} else if (ret == 0) {
				continue;
			}
		}
		for (i=0; i<httpd->max_connections; i++) {
			http_connection_t *connection = &httpd->connections[i];

			if (!connection->connected) {
				continue;
			}
			if (!FD_ISSET(connection->socket_fd, &rfds)) {
				continue;
			}

			/* If not in the middle of request, allocate one */
			if (!connection->request) {
				connection->request = http_request_init(httpd->use_rtsp);
				assert(connection->request);
			}

			logger_log(httpd->logger, LOGGER_DEBUG, "Receiving on socket %d", connection->socket_fd);
			ret = recv(connection->socket_fd, buffer, sizeof(buffer), 0);
			if (ret == 0) {
				logger_log(httpd->logger, LOGGER_INFO, "Connection closed for socket %d", connection->socket_fd);
				httpd_remove_connection(httpd, connection);
				continue;
			}

			/* Parse HTTP request from data read from connection */
			http_request_add_data(connection->request, buffer, ret);
			if (http_request_has_error(connection->request)) {
				logger_log(httpd->logger, LOGGER_INFO, "Error in parsing: %s", http_request_get_error_name(connection->request));
				httpd_remove_connection(httpd, connection);
				continue;
			}

			/* If request is finished, process and deallocate */
			if (http_request_is_complete(connection->request)) {
				http_response_t *response = NULL;

				httpd->callbacks.conn_request(connection->user_data, connection->request, &response);
				http_request_destroy(connection->request);
				connection->request = NULL;

				if (response) {
					const char *data;
					int datalen;
					int written;
					int ret;

					/* Get response data and datalen */
					data = http_response_get_data(response, &datalen);

					written = 0;
					while (written < datalen) {
						ret = send(connection->socket_fd, data+written, datalen-written, 0);
						if (ret == -1) {
							/* FIXME: Error happened */
							logger_log(httpd->logger, LOGGER_INFO, "Error in sending data");
							break;
						}
						written += ret;
					}
				} else {
					logger_log(httpd->logger, LOGGER_INFO, "Didn't get response");
				}
				http_response_destroy(response);
			}
		}
	}

	/* Remove all connections that are still connected */
	for (i=0; i<httpd->max_connections; i++) {
		http_connection_t *connection = &httpd->connections[i];

		if (!connection->connected) {
			continue;
		}
		logger_log(httpd->logger, LOGGER_INFO, "Removing connection for socket %d", connection->socket_fd);
		httpd_remove_connection(httpd, connection);
	}

	logger_log(httpd->logger, LOGGER_INFO, "Exiting HTTP thread");

	return 0;
}

int
httpd_start(httpd_t *httpd, unsigned short *port)
{
	assert(httpd);
	assert(port);

	MUTEX_LOCK(httpd->run_mutex);
	if (httpd->running || !httpd->joined) {
		MUTEX_UNLOCK(httpd->run_mutex);
		return 0;
	}

	httpd->server_fd4 = netutils_init_socket(port, 0, 0);
	if (httpd->server_fd4 == -1) {
		logger_log(httpd->logger, LOGGER_ERR, "Error initialising socket %d", SOCKET_GET_ERROR());
		MUTEX_UNLOCK(httpd->run_mutex);
		return -1;
	}
	httpd->server_fd6 = netutils_init_socket(port, 1, 0);
	if (httpd->server_fd6 == -1) {
		logger_log(httpd->logger, LOGGER_WARNING, "Error initialising IPv6 socket %d", SOCKET_GET_ERROR());
		logger_log(httpd->logger, LOGGER_WARNING, "Continuing without IPv6 support");
	}

	if (listen(httpd->server_fd4, 5) == -1) {
		logger_log(httpd->logger, LOGGER_ERR, "Error listening to IPv4 socket");
		closesocket(httpd->server_fd4);
		closesocket(httpd->server_fd6);
		MUTEX_UNLOCK(httpd->run_mutex);
		return -2;
	}
	if (httpd->server_fd6 != -1 && listen(httpd->server_fd6, 5) == -1) {
		logger_log(httpd->logger, LOGGER_ERR, "Error listening to IPv6 socket");
		closesocket(httpd->server_fd4);
		closesocket(httpd->server_fd6);
		MUTEX_UNLOCK(httpd->run_mutex);
		return -2;
	}
	logger_log(httpd->logger, LOGGER_INFO, "Initialized server socket(s)");

	/* Set values correctly and create new thread */
	httpd->running = 1;
	httpd->joined = 0;
	THREAD_CREATE(httpd->thread, httpd_thread, httpd);
	MUTEX_UNLOCK(httpd->run_mutex);

	return 1;
}

int
httpd_is_running(httpd_t *httpd)
{
	int running;

	assert(httpd);

	MUTEX_LOCK(httpd->run_mutex);
	running = httpd->running || !httpd->joined;
	MUTEX_UNLOCK(httpd->run_mutex);

	return running;
}

void
httpd_stop(httpd_t *httpd)
{
	assert(httpd);

	MUTEX_LOCK(httpd->run_mutex);
	if (!httpd->running || httpd->joined) {
		MUTEX_UNLOCK(httpd->run_mutex);
		return;
	}
	httpd->running = 0;
	MUTEX_UNLOCK(httpd->run_mutex);

	THREAD_JOIN(httpd->thread);

	MUTEX_LOCK(httpd->run_mutex);
	httpd->joined = 1;
	MUTEX_UNLOCK(httpd->run_mutex);
}
Commit	Line	Data
23e7e3ae JVH	1	/**
	2	* Copyright (C) 2011-2012 Juho Vähä-Herttua
	3	*
	4	* This library is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU Lesser General Public
	6	* License as published by the Free Software Foundation; either
	7	* version 2.1 of the License, or (at your option) any later version.
	8	*
	9	* This library is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	12	* Lesser General Public License for more details.
	13	*/
	14
2340bcd3 JVH	15	#include <stdlib.h>
	16	#include <string.h>
	17	#include <stdio.h>
	18	#include <assert.h>
	19
	20	#include "httpd.h"
	21	#include "netutils.h"
	22	#include "http_request.h"
	23	#include "compat.h"
	24	#include "logger.h"
	25
	26	struct http_connection_s {
	27	int connected;
	28
	29	int socket_fd;
	30	void *user_data;
	31	http_request_t *request;
	32	};
	33	typedef struct http_connection_s http_connection_t;
	34
	35	struct httpd_s {
	36	logger_t *logger;
	37	httpd_callbacks_t callbacks;
	38
	39	int use_rtsp;
	40
	41	int max_connections;
c457d545	42	int open_connections;
2340bcd3 JVH	43	http_connection_t *connections;
	44
	45	/* These variables only edited mutex locked */
	46	int running;
	47	int joined;
	48	thread_handle_t thread;
	49	mutex_handle_t run_mutex;
	50
870f342f JVH	51	/* Server fds for accepting connections */
	52	int server_fd4;
	53	int server_fd6;
2340bcd3 JVH	54	};
	55
	56	httpd_t *
	57	httpd_init(logger_t logger, httpd_callbacks_t callbacks, int max_connections, int use_rtsp)
	58	{
	59	httpd_t *httpd;
	60
	61	assert(logger);
	62	assert(callbacks);
	63	assert(max_connections > 0);
	64
	65	/* Allocate the httpd_t structure */
	66	httpd = calloc(1, sizeof(httpd_t));
	67	if (!httpd) {
	68	return NULL;
	69	}
	70
	71	httpd->use_rtsp = !!use_rtsp;
	72	httpd->max_connections = max_connections;
	73	httpd->connections = calloc(max_connections, sizeof(http_connection_t));
	74	if (!httpd->connections) {
	75	free(httpd);
	76	return NULL;
	77	}
	78
	79	/* Use the logger provided */
	80	httpd->logger = logger;
	81
	82	/* Save callback pointers */
	83	memcpy(&httpd->callbacks, callbacks, sizeof(httpd_callbacks_t));
	84
	85	/* Initial status joined */
	86	httpd->running = 0;
	87	httpd->joined = 1;
	88
	89	return httpd;
	90	}
	91
	92	void
	93	httpd_destroy(httpd_t *httpd)
	94	{
	95	if (httpd) {
	96	httpd_stop(httpd);
	97
	98	free(httpd->connections);
	99	free(httpd);
	100	}
	101	}
	102
	103	static void
	104	httpd_add_connection(httpd_t httpd, int fd, unsigned char local, int local_len, unsigned char *remote, int remote_len)
	105	{
	106	int i;
	107
	108	for (i=0; i<httpd->max_connections; i++) {
	109	if (!httpd->connections[i].connected) {
	110	break;
	111	}
	112	}
	113	if (i == httpd->max_connections) {
870f342f	114	/* This code should never be reached, we do not select server_fds when full */
46212791	115	logger_log(httpd->logger, LOGGER_INFO, "Max connections reached");
2340bcd3 JVH	116	shutdown(fd, SHUT_RDWR);
	117	closesocket(fd);
	118	return;
	119	}
	120
c457d545	121	httpd->open_connections++;
2340bcd3 JVH	122	httpd->connections[i].socket_fd = fd;
	123	httpd->connections[i].connected = 1;
	124	httpd->connections[i].user_data = httpd->callbacks.conn_init(httpd->callbacks.opaque, local, local_len, remote, remote_len);
	125	}
	126
870f342f JVH	127	static int
	128	httpd_accept_connection(httpd_t *httpd, int server_fd, int is_ipv6)
	129	{
	130	struct sockaddr_storage remote_saddr;
	131	socklen_t remote_saddrlen;
	132	struct sockaddr_storage local_saddr;
	133	socklen_t local_saddrlen;
	134	unsigned char local, remote;
	135	int local_len, remote_len;
	136	int ret, fd;
	137
	138	remote_saddrlen = sizeof(remote_saddr);
	139	fd = accept(server_fd, (struct sockaddr *)&remote_saddr, &remote_saddrlen);
	140	if (fd == -1) {
	141	/* FIXME: Error happened */
	142	return -1;
	143	}
	144
	145	local_saddrlen = sizeof(local_saddr);
	146	ret = getsockname(fd, (struct sockaddr *)&local_saddr, &local_saddrlen);
	147	if (ret == -1) {
	148	closesocket(fd);
	149	return 0;
	150	}
	151
	152	logger_log(httpd->logger, LOGGER_INFO, "Accepted %s client on socket %d",
	153	(is_ipv6 ? "IPv6" : "IPv4"), fd);
	154	local = netutils_get_address(&local_saddr, &local_len);
	155	remote = netutils_get_address(&remote_saddr, &remote_len);
	156
	157	httpd_add_connection(httpd, fd, local, local_len, remote, remote_len);
	158	return 1;
	159	}
	160
2340bcd3 JVH	161	static void
	162	httpd_remove_connection(httpd_t httpd, http_connection_t connection)
	163	{
	164	if (connection->request) {
	165	http_request_destroy(connection->request);
	166	connection->request = NULL;
	167	}
	168	httpd->callbacks.conn_destroy(connection->user_data);
	169	shutdown(connection->socket_fd, SHUT_WR);
	170	closesocket(connection->socket_fd);
	171	connection->connected = 0;
c457d545	172	httpd->open_connections--;
2340bcd3 JVH	173	}
	174
	175	static THREAD_RETVAL
	176	httpd_thread(void *arg)
	177	{
	178	httpd_t *httpd = arg;
	179	char buffer[1024];
	180	int i;
	181
	182	assert(httpd);
	183
	184	while (1) {
	185	fd_set rfds;
	186	struct timeval tv;
	187	int nfds=0;
	188	int ret;
	189
	190	MUTEX_LOCK(httpd->run_mutex);
	191	if (!httpd->running) {
	192	MUTEX_UNLOCK(httpd->run_mutex);
	193	break;
	194	}
	195	MUTEX_UNLOCK(httpd->run_mutex);
	196
	197	/* Set timeout value to 5ms */
	198	tv.tv_sec = 1;
	199	tv.tv_usec = 5000;
	200
	201	/* Get the correct nfds value and set rfds */
	202	FD_ZERO(&rfds);
c457d545	203	if (httpd->open_connections < httpd->max_connections) {
870f342f JVH	204	FD_SET(httpd->server_fd4, &rfds);
	205	nfds = httpd->server_fd4+1;
	206	if (httpd->server_fd6 != -1) {
	207	FD_SET(httpd->server_fd6, &rfds);
	208	if (nfds <= httpd->server_fd6) {
	209	nfds = httpd->server_fd6+1;
	210	}
	211	}
c457d545	212	}
2340bcd3 JVH	213	for (i=0; i<httpd->max_connections; i++) {
	214	int socket_fd;
	215	if (!httpd->connections[i].connected) {
	216	continue;
	217	}
	218	socket_fd = httpd->connections[i].socket_fd;
	219	FD_SET(socket_fd, &rfds);
	220	if (nfds <= socket_fd) {
	221	nfds = socket_fd+1;
	222	}
	223	}
	224
	225	ret = select(nfds, &rfds, NULL, NULL, &tv);
	226	if (ret == 0) {
	227	/* Timeout happened */
	228	continue;
	229	} else if (ret == -1) {
	230	/* FIXME: Error happened */
46212791	231	logger_log(httpd->logger, LOGGER_INFO, "Error in select");
2340bcd3 JVH	232	break;
	233	}
	234
870f342f JVH	235	if (FD_ISSET(httpd->server_fd4, &rfds)) {
	236	ret = httpd_accept_connection(httpd, httpd->server_fd4, 0);
	237	if (ret == -1) {
2340bcd3	238	break;
870f342f JVH	239	} else if (ret == 0) {
870f342f JVH	240	continue;
2340bcd3	241	}
870f342f	242	}
2e66aa96	243	if (httpd->server_fd6 != -1 && FD_ISSET(httpd->server_fd6, &rfds)) {
870f342f	244	ret = httpd_accept_connection(httpd, httpd->server_fd6, 1);
2340bcd3	245	if (ret == -1) {
870f342f JVH	246	break;
870f342f JVH	247	} else if (ret == 0) {
2340bcd3 JVH	248	continue;
2340bcd3 JVH	249	}
2340bcd3 JVH	250	}
	251	for (i=0; i<httpd->max_connections; i++) {
	252	http_connection_t *connection = &httpd->connections[i];
	253
	254	if (!connection->connected) {
	255	continue;
	256	}
	257	if (!FD_ISSET(connection->socket_fd, &rfds)) {
	258	continue;
	259	}
	260
	261	/* If not in the middle of request, allocate one */
	262	if (!connection->request) {
	263	connection->request = http_request_init(httpd->use_rtsp);
	264	assert(connection->request);
	265	}
	266
46212791	267	logger_log(httpd->logger, LOGGER_DEBUG, "Receiving on socket %d", connection->socket_fd);
2340bcd3 JVH	268	ret = recv(connection->socket_fd, buffer, sizeof(buffer), 0);
2340bcd3 JVH	269	if (ret == 0) {
46212791	270	logger_log(httpd->logger, LOGGER_INFO, "Connection closed for socket %d", connection->socket_fd);
2340bcd3 JVH	271	httpd_remove_connection(httpd, connection);
	272	continue;
	273	}
	274
	275	/* Parse HTTP request from data read from connection */
	276	http_request_add_data(connection->request, buffer, ret);
	277	if (http_request_has_error(connection->request)) {
46212791	278	logger_log(httpd->logger, LOGGER_INFO, "Error in parsing: %s", http_request_get_error_name(connection->request));
2340bcd3 JVH	279	httpd_remove_connection(httpd, connection);
	280	continue;
	281	}
	282
	283	/* If request is finished, process and deallocate */
	284	if (http_request_is_complete(connection->request)) {
	285	http_response_t *response = NULL;
	286
	287	httpd->callbacks.conn_request(connection->user_data, connection->request, &response);
	288	http_request_destroy(connection->request);
	289	connection->request = NULL;
	290
	291	if (response) {
	292	const char *data;
	293	int datalen;
	294	int written;
	295	int ret;
	296
	297	/* Get response data and datalen */
	298	data = http_response_get_data(response, &datalen);
	299
	300	written = 0;
	301	while (written < datalen) {
	302	ret = send(connection->socket_fd, data+written, datalen-written, 0);
	303	if (ret == -1) {
	304	/* FIXME: Error happened */
46212791	305	logger_log(httpd->logger, LOGGER_INFO, "Error in sending data");
2340bcd3 JVH	306	break;
	307	}
	308	written += ret;
	309	}
	310	} else {
46212791	311	logger_log(httpd->logger, LOGGER_INFO, "Didn't get response");
2340bcd3 JVH	312	}
	313	http_response_destroy(response);
	314	}
	315	}
	316	}
	317
	318	/* Remove all connections that are still connected */
	319	for (i=0; i<httpd->max_connections; i++) {
	320	http_connection_t *connection = &httpd->connections[i];
	321
	322	if (!connection->connected) {
	323	continue;
	324	}
46212791	325	logger_log(httpd->logger, LOGGER_INFO, "Removing connection for socket %d", connection->socket_fd);
2340bcd3 JVH	326	httpd_remove_connection(httpd, connection);
	327	}
	328
46212791	329	logger_log(httpd->logger, LOGGER_INFO, "Exiting HTTP thread");
2340bcd3 JVH	330
	331	return 0;
	332	}
	333
	334	int
	335	httpd_start(httpd_t httpd, unsigned short port)
	336	{
	337	assert(httpd);
	338	assert(port);
	339
	340	MUTEX_LOCK(httpd->run_mutex);
	341	if (httpd->running \|\| !httpd->joined) {
	342	MUTEX_UNLOCK(httpd->run_mutex);
	343	return 0;
	344	}
	345
870f342f JVH	346	httpd->server_fd4 = netutils_init_socket(port, 0, 0);
	347	if (httpd->server_fd4 == -1) {
	348	logger_log(httpd->logger, LOGGER_ERR, "Error initialising socket %d", SOCKET_GET_ERROR());
2340bcd3 JVH	349	MUTEX_UNLOCK(httpd->run_mutex);
	350	return -1;
	351	}
870f342f JVH	352	httpd->server_fd6 = netutils_init_socket(port, 1, 0);
	353	if (httpd->server_fd6 == -1) {
	354	logger_log(httpd->logger, LOGGER_WARNING, "Error initialising IPv6 socket %d", SOCKET_GET_ERROR());
	355	logger_log(httpd->logger, LOGGER_WARNING, "Continuing without IPv6 support");
	356	}
	357
	358	if (listen(httpd->server_fd4, 5) == -1) {
	359	logger_log(httpd->logger, LOGGER_ERR, "Error listening to IPv4 socket");
	360	closesocket(httpd->server_fd4);
	361	closesocket(httpd->server_fd6);
	362	MUTEX_UNLOCK(httpd->run_mutex);
	363	return -2;
	364	}
	365	if (httpd->server_fd6 != -1 && listen(httpd->server_fd6, 5) == -1) {
	366	logger_log(httpd->logger, LOGGER_ERR, "Error listening to IPv6 socket");
	367	closesocket(httpd->server_fd4);
	368	closesocket(httpd->server_fd6);
2340bcd3 JVH	369	MUTEX_UNLOCK(httpd->run_mutex);
	370	return -2;
	371	}
870f342f	372	logger_log(httpd->logger, LOGGER_INFO, "Initialized server socket(s)");
2340bcd3 JVH	373
	374	/* Set values correctly and create new thread */
	375	httpd->running = 1;
	376	httpd->joined = 0;
	377	THREAD_CREATE(httpd->thread, httpd_thread, httpd);
	378	MUTEX_UNLOCK(httpd->run_mutex);
	379
	380	return 1;
	381	}
	382
5a746b97 JVH	383	int
	384	httpd_is_running(httpd_t *httpd)
	385	{
	386	int running;
	387
	388	assert(httpd);
	389
	390	MUTEX_LOCK(httpd->run_mutex);
	391	running = httpd->running \|\| !httpd->joined;
	392	MUTEX_UNLOCK(httpd->run_mutex);
	393
	394	return running;
	395	}
	396
2340bcd3 JVH	397	void
	398	httpd_stop(httpd_t *httpd)
	399	{
	400	assert(httpd);
	401
	402	MUTEX_LOCK(httpd->run_mutex);
	403	if (!httpd->running \|\| httpd->joined) {
	404	MUTEX_UNLOCK(httpd->run_mutex);
	405	return;
	406	}
	407	httpd->running = 0;
	408	MUTEX_UNLOCK(httpd->run_mutex);
	409
	410	THREAD_JOIN(httpd->thread);
	411
	412	MUTEX_LOCK(httpd->run_mutex);
	413	httpd->joined = 1;
	414	MUTEX_UNLOCK(httpd->run_mutex);
	415	}
	416