connection.c 18.1 KB
Newer Older
Jack Moffitt's avatar
Jack Moffitt committed
1
2
3
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
4
#include <time.h>
Jack Moffitt's avatar
Jack Moffitt committed
5
#include <sys/types.h>
6
#include <sys/stat.h>
7
8
9

#ifndef _WIN32
#include <sys/time.h>
Jack Moffitt's avatar
Jack Moffitt committed
10
11
#include <sys/socket.h>
#include <netinet/in.h>
12
#else
13
#include <winsock2.h>
14
15
#define snprintf _snprintf
#define strcasecmp stricmp
16
#define strncasecmp strnicmp
17
#endif
Jack Moffitt's avatar
Jack Moffitt committed
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34

#include "os.h"

#include "thread.h"
#include "avl.h"
#include "sock.h"
#include "log.h"
#include "httpp.h"

#include "config.h"
#include "global.h"
#include "util.h"
#include "connection.h"
#include "refbuf.h"
#include "client.h"
#include "stats.h"
#include "logging.h"
35
#include "xslt.h"
36
#include "fserve.h"
Jack Moffitt's avatar
Jack Moffitt committed
37
#include "source.h"
Michael Smith's avatar
Michael Smith committed
38
#include "format.h"
Jack Moffitt's avatar
Jack Moffitt committed
39
40
41
42
43
44
45
46
47

#define CATMODULE "connection"

typedef struct con_queue_tag {
	connection_t *con;
	struct con_queue_tag *next;
} con_queue_t;

typedef struct _thread_queue_tag {
48
	thread_type *thread_id;
Jack Moffitt's avatar
Jack Moffitt committed
49
50
51
52
53
54
55
56
57
58
59
60
61
	struct _thread_queue_tag *next;
} thread_queue_t;

static mutex_t _connection_mutex;
static unsigned long _current_id = 0;
static int _initialized = 0;
static cond_t _pool_cond;

static con_queue_t *_queue = NULL;
static mutex_t _queue_mutex;

static thread_queue_t *_conhands = NULL;

62
rwlock_t _source_shutdown_rwlock;
Jack Moffitt's avatar
Jack Moffitt committed
63
64
65
66
67
68
69
70
71
72
73

static void *_handle_connection(void *arg);

void connection_initialize(void)
{
	if (_initialized) return;
	
	thread_mutex_create(&_connection_mutex);
	thread_mutex_create(&_queue_mutex);
	thread_rwlock_create(&_source_shutdown_rwlock);
	thread_cond_create(&_pool_cond);
74
    thread_cond_create(&global.shutdown_cond);
Jack Moffitt's avatar
Jack Moffitt committed
75
76
77
78
79
80
81
82

	_initialized = 1;
}

void connection_shutdown(void)
{
	if (!_initialized) return;
	
83
    thread_cond_destroy(&global.shutdown_cond);
Jack Moffitt's avatar
Jack Moffitt committed
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
	thread_cond_destroy(&_pool_cond);
	thread_rwlock_destroy(&_source_shutdown_rwlock);
	thread_mutex_destroy(&_queue_mutex);
	thread_mutex_destroy(&_connection_mutex);

	_initialized = 0;
}

static unsigned long _next_connection_id(void)
{
	unsigned long id;

	thread_mutex_lock(&_connection_mutex);
	id = _current_id++;
	thread_mutex_unlock(&_connection_mutex);

	return id;
}

103
104
105
106
107
108
109
110
111
112
113
connection_t *create_connection(sock_t sock, char *ip) {
	connection_t *con;
	con = (connection_t *)malloc(sizeof(connection_t));
	memset(con, 0, sizeof(connection_t));
	con->sock = sock;
	con->con_time = time(NULL);
	con->id = _next_connection_id();
	con->ip = ip;
	return con;
}

Jack Moffitt's avatar
Jack Moffitt committed
114
115
116
117
118
119
static connection_t *_accept_connection(void)
{
	int sock;
	connection_t *con;
	char *ip;

120
    if (util_timed_wait_for_fd(global.serversock, 100) <= 0) {
Jack Moffitt's avatar
Jack Moffitt committed
121
122
123
		return NULL;
	}

124
	/* malloc enough room for 123.123.123.123\0 (TODO: ipv6?)*/
Jack Moffitt's avatar
Jack Moffitt committed
125
126
127
128
	ip = (char *)malloc(16);

	sock = sock_accept(global.serversock, ip, 16);
	if (sock >= 0) {
129
		con = create_connection(sock, ip);
Jack Moffitt's avatar
Jack Moffitt committed
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160

		return con;
	}

	if (!sock_recoverable(sock_error()))
		WARN2("accept() failed with error %d: %s", sock_error(), strerror(sock_error()));
	
	free(ip);

	return NULL;
}

static void _add_connection(connection_t *con)
{
	con_queue_t *node;

	node = (con_queue_t *)malloc(sizeof(con_queue_t));
	
	thread_mutex_lock(&_queue_mutex);
	node->con = con;
	node->next = _queue;
	_queue = node;
	thread_mutex_unlock(&_queue_mutex);

}

static void _signal_pool(void)
{
	thread_cond_signal(&_pool_cond);
}

161
static void _push_thread(thread_queue_t **queue, thread_type *thread_id)
Jack Moffitt's avatar
Jack Moffitt committed
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
{
	/* create item */
	thread_queue_t *item = (thread_queue_t *)malloc(sizeof(thread_queue_t));
	item->thread_id = thread_id;
	item->next = NULL;


	thread_mutex_lock(&_queue_mutex);
	if (*queue == NULL) {
		*queue = item;
	} else {
		item->next = *queue;
		*queue = item;
	}
	thread_mutex_unlock(&_queue_mutex);
}

179
static thread_type *_pop_thread(thread_queue_t **queue)
Jack Moffitt's avatar
Jack Moffitt committed
180
{
181
	thread_type *id;
Jack Moffitt's avatar
Jack Moffitt committed
182
183
184
185
186
187
188
	thread_queue_t *item;

	thread_mutex_lock(&_queue_mutex);

	item = *queue;
	if (item == NULL) {
		thread_mutex_unlock(&_queue_mutex);
Michael Smith's avatar
Michael Smith committed
189
		return NULL;
Jack Moffitt's avatar
Jack Moffitt committed
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
	}

	*queue = item->next;
	item->next = NULL;
	id = item->thread_id;
	free(item);

	thread_mutex_unlock(&_queue_mutex);

	return id;
}

static void _build_pool(void)
{
	ice_config_t *config;
Michael Smith's avatar
Michael Smith committed
205
	int i;
206
    thread_type *tid;
Jack Moffitt's avatar
Jack Moffitt committed
207
208
209
210
211
212
	char buff[64];

	config = config_get_config();

	for (i = 0; i < config->threadpool_size; i++) {
		snprintf(buff, 64, "Connection Thread #%d", i);
213
		tid = thread_create(buff, _handle_connection, NULL, THREAD_ATTACHED);
Jack Moffitt's avatar
Jack Moffitt committed
214
215
216
217
218
219
		_push_thread(&_conhands, tid);
	}
}

static void _destroy_pool(void)
{
220
	thread_type *id;
Jack Moffitt's avatar
Jack Moffitt committed
221
222
223
224
225
226
	int i;

	i = 0;

	thread_cond_broadcast(&_pool_cond);
	id = _pop_thread(&_conhands);
Michael Smith's avatar
Michael Smith committed
227
	while (id != NULL) {
Jack Moffitt's avatar
Jack Moffitt committed
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
		thread_join(id);
		_signal_pool();
		id = _pop_thread(&_conhands);
	}
}

void connection_accept_loop(void)
{
	connection_t *con;

	_build_pool();

	while (global.running == ICE_RUNNING) {
		con = _accept_connection();

		if (con) {
			_add_connection(con);
			_signal_pool();
		}
	}

249
250
251
    /* Give all the other threads notification to shut down */
    thread_cond_broadcast(&global.shutdown_cond);

Jack Moffitt's avatar
Jack Moffitt committed
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
	_destroy_pool();

	/* wait for all the sources to shutdown */
	thread_rwlock_wlock(&_source_shutdown_rwlock);
	thread_rwlock_unlock(&_source_shutdown_rwlock);
}

static connection_t *_get_connection(void)
{
	con_queue_t *node = NULL;
	con_queue_t *oldnode = NULL;
	connection_t *con = NULL;

	thread_mutex_lock(&_queue_mutex);
	if (_queue) {
		node = _queue;
		while (node->next) {
			oldnode = node;
			node = node->next;
		}
		
		/* node is now the last node
		** and oldnode is the previous one, or NULL
		*/
		if (oldnode) oldnode->next = NULL;
		else (_queue) = NULL;
	}
	thread_mutex_unlock(&_queue_mutex);

	if (node) {
		con = node->con;
		free(node);
	}

	return con;
}

289
int connection_create_source(client_t *client, connection_t *con, http_parser_t *parser, char *mount) {
290
291
	source_t *source;
	char *contenttype;
292
293
    int bytes;

294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
	/* check to make sure this source wouldn't
	** be over the limit
	*/
	global_lock();
	if (global.sources >= config_get_config()->source_limit) {
		INFO1("Source (%s) logged in, but there are too many sources", mount);
		global_unlock();
		return 0;
	}
	global.sources++;
	global_unlock();
	
	stats_event_inc(NULL, "sources");

	contenttype = httpp_getvar(parser, "content-type");

	if (contenttype != NULL) {
		format_type_t format = format_get_type(contenttype);
		if (format < 0) {
			WARN1("Content-type \"%s\" not supported, dropping source", contenttype);
314
            goto fail;
315
		} else {
316
			source = source_create(client, con, parser, mount, format);
317
318
319
		}
	} else {
		WARN0("No content-type header, cannot handle source");
320
        goto fail;
321
	}
322
    client->respcode = 200;
323
324
325
326
    bytes = sock_write(client->con->sock, 
            "HTTP/1.0 200 OK\r\n\r\n");
    if(bytes > 0) client->con->sent_bytes = bytes;

327
328
329
330
	source->shutdown_rwlock = &_source_shutdown_rwlock;
	sock_set_blocking(con->sock, SOCK_NONBLOCK);
	thread_create("Source Thread", source_main, (void *)source, THREAD_DETACHED);
	return 1;
331
332
333
334
335
336
337
338

fail:
    global_lock();
    global.sources--;
    global_unlock();

    stats_event_dec(NULL, "sources");
    return 0;
339
340
}

341
342
static int _check_pass_http(http_parser_t *parser, 
        char *correctuser, char *correctpass)
343
344
345
346
347
348
349
350
351
352
353
354
355
{
    /* This will look something like "Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ==" */
    char *header = httpp_getvar(parser, "authorization");
    char *userpass, *tmp;
    char *username, *password;

    if(header == NULL)
        return 0;

    if(strncmp(header, "Basic ", 6))
        return 0;

    userpass = util_base64_decode(header+6);
356
357
358
    if(userpass == NULL) {
        WARN1("Base64 decode of Authorization header \"%s\" failed",
                header+6);
359
        return 0;
360
    }
361
362
363
364
365
366
367
368
369
370

    tmp = strchr(userpass, ':');
    if(!tmp) {
        free(userpass);
        return 0;
    }
    *tmp = 0;
    username = userpass;
    password = tmp+1;

371
    if(strcmp(username, correctuser) || strcmp(password, correctpass)) {
372
373
374
        free(userpass);
        return 0;
    }
375
    free(userpass);
376
377
378
379

    return 1;
}

380
static int _check_pass_ice(http_parser_t *parser, char *correctpass)
381
{
382
    char *password;
383
384
385
386
387
388
389
390
391
392
393

    password = httpp_getvar(parser, "ice-password");
    if(!password)
        password = "";

	if (strcmp(password, correctpass))
        return 0;
    else
        return 1;
}

394
static int _check_relay_pass(http_parser_t *parser)
395
{
396
397
398
399
400
401
402
403
404
405
    char *pass = config_get_config()->relay_password;
    if(!pass)
        pass = config_get_config()->source_password;

    return _check_pass_http(parser, "relay", pass);
}

static int _check_source_pass(http_parser_t *parser)
{
    char *pass = config_get_config()->source_password;
406
    int ret;
407
408
409
    if(!pass)
        pass = "";

410
411
412
413
414
415
416
417
418
    ret = _check_pass_http(parser, "source", pass);
    if(!ret && config_get_config()->ice_login)
    {
        ret = _check_pass_ice(parser, pass);
        if(ret)
            WARN0("Source is using deprecated icecast login");
    }

    return ret;
419
420
}

421
422
423
static void _handle_source_request(connection_t *con, 
        http_parser_t *parser, char *uri)
{
424
425
426
427
    client_t *client;

	client = client_create(con, parser);

428
429
430
    INFO1("Source logging in at mountpoint \"%s\"", uri);
    stats_event_inc(NULL, "source_connections");
				
431
	if (!_check_source_pass(parser)) {
432
		INFO1("Source (%s) attempted to login with invalid or missing password", uri);
433
        client_send_401(client);
434
435
436
437
438
439
440
441
442
443
        return;
	}

	/* check to make sure this source has
	** a unique mountpoint
	*/

	avl_tree_rlock(global.source_tree);
	if (source_find_mount(uri) != NULL) {
		INFO1("Source tried to log in as %s, but mountpoint is already used", uri);
444
        client_send_404(client, "Mountpoint in use");
445
446
447
448
449
		avl_tree_unlock(global.source_tree);
		return;
	}
	avl_tree_unlock(global.source_tree);

450
451
	if (!connection_create_source(client, con, parser, uri)) {
        client_destroy(client);
452
453
454
455
456
	}
}

static void _handle_stats_request(connection_t *con, 
        http_parser_t *parser, char *uri)
Jack Moffitt's avatar
Jack Moffitt committed
457
458
{
	stats_connection_t *stats;
459
460
461

	stats_event_inc(NULL, "stats_connections");
				
462
	if (!_check_source_pass(parser)) {
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
        ERROR0("Bad password for stats connection");
		connection_close(con);
		httpp_destroy(parser);
        return;
	}
					
	stats_event_inc(NULL, "stats");
					
	/* create stats connection and create stats handler thread */
	stats = (stats_connection_t *)malloc(sizeof(stats_connection_t));
	stats->parser = parser;
	stats->con = con;
					
	thread_create("Stats Connection", stats_connection, (void *)stats, THREAD_DETACHED);
}

static void _handle_get_request(connection_t *con,
        http_parser_t *parser, char *uri)
{
    char *fullpath;
	client_t *client;
    int bytes;
485
	struct stat statbuf;
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
	source_t *source;

    DEBUG0("Client connected");

	/* make a client */
	client = client_create(con, parser);
	stats_event_inc(NULL, "client_connections");
					
	/* there are several types of HTTP GET clients
	** media clients, which are looking for a source (eg, URI = /stream.ogg)
	** stats clients, which are looking for /stats.xml
	** and director server authorizers, which are looking for /GUID-xxxxxxxx 
    ** (where xxxxxx is the GUID in question) - this isn't implemented yet.
	** we need to handle the latter two before the former, as the latter two
	** aren't subject to the limits.
	*/
	/* TODO: add GUID-xxxxxx */
	if (strcmp(uri, "/stats.xml") == 0) {
504
	    if (!_check_source_pass(parser)) {
505
		    INFO0("Request for stats.xml with incorrect or no password");
506
507
508
            client_send_401(client);
            return;
    	}
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
        DEBUG0("Stats request, sending xml stats");
		stats_sendxml(client);
        client_destroy(client);
        return;
    }

	/* Here we are parsing the URI request to see
	** if the extension is .xsl, if so, then process
	** this request as an XSLT request
	*/
    fullpath = util_get_path_from_normalised_uri(uri);
    if (util_check_valid_extension(fullpath) == XSLT_CONTENT) {
    	/* If the file exists, then transform it, otherwise, write a 404 */
    	if (stat(fullpath, &statbuf) == 0) {
            DEBUG0("Stats request, sending XSL transformed stats");
524
            client->respcode = 200;
525
526
527
528
529
530
531
532
533
534
535
536
		    bytes = sock_write(client->con->sock, 
                    "HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n");
            if(bytes > 0) client->con->sent_bytes = bytes;
            stats_transform_xslt(client, fullpath);
		    client_destroy(client);
    	}
	    else {
            client_send_404(client, "The file you requested could not be found");
    	}
        free(fullpath);
        return;
	}
537
538
    else if(config_get_config()->fileserve && 
            stat(fullpath, &statbuf) == 0) {
539
        fserve_client_create(client, fullpath);
540
541
542
        free(fullpath);
        return;
    }
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
    free(fullpath);

    if(strcmp(util_get_extension(uri), "m3u") == 0) {
        char *sourceuri = strdup(uri);
        char *dot = strrchr(sourceuri, '.');
        *dot = 0;
	    avl_tree_rlock(global.source_tree);
    	source = source_find_mount(sourceuri);
	   	if (source) {
            client->respcode = 200;
            bytes = sock_write(client->con->sock,
                    "HTTP/1.0 200 OK\r\n"
                    "Content-Type: audio/x-mpegurl\r\n\r\n"
                    "http://%s:%d%s", 
                    config_get_config()->hostname, 
                    config_get_config()->port,
                    sourceuri
                    );
            if(bytes > 0) client->con->sent_bytes = bytes;
    	    client_destroy(client);
        }
        else {
            client_send_404(client, "The file you requested could not be found");
        }
		avl_tree_unlock(global.source_tree);
        free(sourceuri);
        return;
    }

	if (strcmp(uri, "/allstreams.txt") == 0) {
573
		if (!_check_relay_pass(parser)) {
574
			INFO0("Client attempted to fetch allstreams.txt with bad password");
575
            client_send_401(client);
576
		} else {
577
578
579
			avl_node *node;
			source_t *s;

580
581
582
583
584
            client->respcode = 200;
            bytes = sock_write(client->con->sock,
                    "HTTP/1.0 200 OK\r\n\r\n");
            if(bytes > 0) client->con->sent_bytes = bytes;

585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
			avl_tree_rlock(global.source_tree);
			node = avl_get_first(global.source_tree);
			while (node) {
				s = (source_t *)node->key;
				bytes = sock_write(client->con->sock, "%s\r\n", s->mount);
                if(bytes > 0) client->con->sent_bytes += bytes;
                else break;

				node = avl_get_next(node);
			}
			avl_tree_unlock(global.source_tree);
		    client_destroy(client);
		}
        return;
	}
				
	global_lock();
	if (global.clients >= config_get_config()->client_limit) {
		client->respcode = 504;
		bytes = sock_write(client->con->sock, 
                "HTTP/1.0 504 Server Full\r\n"
                "Content-Type: text/html\r\n\r\n"
    		    "<b>The server is already full.  Try again later.</b>\r\n");
    	if (bytes > 0) client->con->sent_bytes = bytes;
		client_destroy(client);
		global_unlock();
        return;
	}
	global_unlock();
					
	avl_tree_rlock(global.source_tree);
	source = source_find_mount(uri);
	if (source) {
        DEBUG0("Source found for client");
						
		global_lock();
		if (global.clients >= config_get_config()->client_limit) {
			client->respcode = 504;
			bytes = sock_write(client->con->sock, 
                    "HTTP/1.0 504 Server Full\r\n"
                    "Content-Type: text/html\r\n\r\n"
				    "<b>The server is already full.  Try again later.</b>\r\n");
			if (bytes > 0) client->con->sent_bytes = bytes;
			client_destroy(client);
			global_unlock();
            avl_tree_unlock(global.source_tree);
            return;
		}
		global.clients++;
		global_unlock();
						
Michael Smith's avatar
Michael Smith committed
636
637
638
639
        client->format_data = source->format->create_client_data(
                source->format, source, client);

        source->format->client_send_headers(source->format, source, client);
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
						
		bytes = sock_write(client->con->sock, "\r\n");
        if(bytes > 0) client->con->sent_bytes += bytes;
							
    	sock_set_blocking(client->con->sock, SOCK_NONBLOCK);
						
		avl_tree_wlock(source->pending_tree);
		avl_insert(source->pending_tree, (void *)client);
		avl_tree_unlock(source->pending_tree);
	}
					
	avl_tree_unlock(global.source_tree);
					
	if (!source) {
        DEBUG0("Source not found for client");
        client_send_404(client, "The source you requested could not be found.");
	}
}

static void *_handle_connection(void *arg)
{
	char header[4096];
	connection_t *con;
	http_parser_t *parser;
664
    char *rawuri, *uri;
665
	client_t *client;
Jack Moffitt's avatar
Jack Moffitt committed
666
667
668
669
670
671
672
673

	while (global.running == ICE_RUNNING) {
		memset(header, 0, 4096);

		thread_cond_wait(&_pool_cond);
		if (global.running != ICE_RUNNING) break;

		/* grab a connection and set the socket to blocking */
674
		while ((con = _get_connection())) {
675
			stats_event_inc(NULL, "connections");
Jack Moffitt's avatar
Jack Moffitt committed
676

677
			sock_set_blocking(con->sock, SOCK_BLOCK);
Jack Moffitt's avatar
Jack Moffitt committed
678

679
680
681
			/* fill header with the http header */
			if (util_read_header(con->sock, header, 4096) == 0) {
				/* either we didn't get a complete header, or we timed out */
Jack Moffitt's avatar
Jack Moffitt committed
682
683
684
685
				connection_close(con);
				continue;
			}

686
687
688
689
			parser = httpp_create_parser();
			httpp_initialize(parser, NULL);
			if (httpp_parse(parser, header, strlen(header))) {
				/* handle the connection or something */
Jack Moffitt's avatar
Jack Moffitt committed
690
				
691
692
				if (strcmp("ICE",  httpp_getvar(parser, HTTPP_VAR_PROTOCOL)) &&
                    strcmp("HTTP", httpp_getvar(parser, HTTPP_VAR_PROTOCOL))) {
693
                    ERROR0("Bad HTTP protocol detected");
Jack Moffitt's avatar
Jack Moffitt committed
694
695
696
697
698
					connection_close(con);
					httpp_destroy(parser);
					continue;
				}

699
700
701
702
703
                rawuri = httpp_getvar(parser, HTTPP_VAR_URI);
                uri = util_normalise_uri(rawuri);

                if(!uri) {
					client = client_create(con, parser);
704
                    client_send_404(client, "The path you requested was invalid");
705
706
                    continue;
                }
707

708
				if (parser->req_type == httpp_req_source) {
709
710
711
712
713
714
715
716
717
                    _handle_source_request(con, parser, uri);
                }
                else if (parser->req_type == httpp_req_stats) {
                    _handle_stats_request(con, parser, uri);
                }
                else if (parser->req_type == httpp_req_get) {
                    _handle_get_request(con, parser, uri);
                }
                else {
718
                    ERROR0("Wrong request type from client");
719
720
					connection_close(con);
					httpp_destroy(parser);
721
722
723
                }

                free(uri);
Jack Moffitt's avatar
Jack Moffitt committed
724
			} else {
725
                ERROR0("HTTP request parsing failed");
Jack Moffitt's avatar
Jack Moffitt committed
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
				connection_close(con);
				httpp_destroy(parser);
				continue;
			}
		}
	}

	thread_exit(0);

	return NULL;
}

void connection_close(connection_t *con)
{
	sock_close(con->sock);
	if (con->ip) free(con->ip);
	if (con->host) free(con->host);
	free(con);
}