forked from php/php-src
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathsockets.c
2665 lines (2207 loc) · 66.1 KB
/
sockets.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
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
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
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
573
574
575
576
577
578
579
580
581
582
583
584
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
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
+----------------------------------------------------------------------+
| Copyright (c) The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| https://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Chris Vandomelen <[email protected]> |
| Sterling Hughes <[email protected]> |
| Jason Greene <[email protected]> |
| Gustavo Lopes <[email protected]> |
| WinSock: Daniel Beulshausen <[email protected]> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_network.h"
#include "ext/standard/file.h"
#include "ext/standard/info.h"
#include "php_ini.h"
#ifdef PHP_WIN32
# include "windows_common.h"
# include <win32/inet.h>
# include <windows.h>
# include <Ws2tcpip.h>
# include "php_sockets.h"
# include <win32/sockets.h>
# include <win32/winutil.h>
#else
# include <sys/types.h>
# include <sys/socket.h>
# include <netdb.h>
# include <netinet/in.h>
# include <netinet/tcp.h>
# include <sys/un.h>
# include <arpa/inet.h>
# include <sys/time.h>
# include <unistd.h>
# include <errno.h>
# include <fcntl.h>
# include <signal.h>
# include <sys/uio.h>
# define set_errno(a) (errno = a)
# include "php_sockets.h"
# if HAVE_IF_NAMETOINDEX
# include <net/if.h>
# endif
# if defined(HAVE_LINUX_SOCK_DIAG_H)
# include <linux/sock_diag.h>
# else
# undef SO_MEMINFO
# endif
# if defined(HAVE_LINUX_FILTER_H)
# include <linux/filter.h>
# else
# undef SO_BPF_EXTENSIONS
# endif
#endif
#include <stddef.h>
#include "sockaddr_conv.h"
#include "multicast.h"
#include "sendrecvmsg.h"
#include "sockets_arginfo.h"
ZEND_DECLARE_MODULE_GLOBALS(sockets)
#ifndef SUN_LEN
#define SUN_LEN(su) (sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path))
#endif
#ifndef PF_INET
#define PF_INET AF_INET
#endif
static PHP_GINIT_FUNCTION(sockets);
static PHP_GSHUTDOWN_FUNCTION(sockets);
static PHP_MINIT_FUNCTION(sockets);
static PHP_MSHUTDOWN_FUNCTION(sockets);
static PHP_MINFO_FUNCTION(sockets);
static PHP_RSHUTDOWN_FUNCTION(sockets);
/* Socket class */
zend_class_entry *socket_ce;
static zend_object_handlers socket_object_handlers;
static zend_object *socket_create_object(zend_class_entry *class_type) {
php_socket *intern = zend_object_alloc(sizeof(php_socket), class_type);
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
intern->bsd_socket = -1; /* invalid socket */
intern->type = PF_UNSPEC;
intern->error = 0;
intern->blocking = 1;
ZVAL_UNDEF(&intern->zstream);
return &intern->std;
}
static zend_function *socket_get_constructor(zend_object *object) {
zend_throw_error(NULL, "Cannot directly construct Socket, use socket_create() instead");
return NULL;
}
static void socket_free_obj(zend_object *object)
{
php_socket *socket = socket_from_obj(object);
if (Z_ISUNDEF(socket->zstream)) {
if (!IS_INVALID_SOCKET(socket)) {
close(socket->bsd_socket);
}
} else {
zval_ptr_dtor(&socket->zstream);
}
zend_object_std_dtor(&socket->std);
}
static HashTable *socket_get_gc(zend_object *object, zval **table, int *n)
{
php_socket *socket = socket_from_obj(object);
*table = &socket->zstream;
*n = 1;
return zend_std_get_properties(object);
}
/* AddressInfo class */
typedef struct {
struct addrinfo addrinfo;
zend_object std;
} php_addrinfo;
zend_class_entry *address_info_ce;
static zend_object_handlers address_info_object_handlers;
static inline php_addrinfo *address_info_from_obj(zend_object *obj) {
return (php_addrinfo *)((char *)(obj) - XtOffsetOf(php_addrinfo, std));
}
#define Z_ADDRESS_INFO_P(zv) address_info_from_obj(Z_OBJ_P(zv))
static zend_object *address_info_create_object(zend_class_entry *class_type) {
php_addrinfo *intern = zend_object_alloc(sizeof(php_addrinfo), class_type);
zend_object_std_init(&intern->std, class_type);
object_properties_init(&intern->std, class_type);
return &intern->std;
}
static zend_function *address_info_get_constructor(zend_object *object) {
zend_throw_error(NULL, "Cannot directly construct AddressInfo, use socket_addrinfo_lookup() instead");
return NULL;
}
static void address_info_free_obj(zend_object *object)
{
php_addrinfo *address_info = address_info_from_obj(object);
if (address_info->addrinfo.ai_canonname != NULL) {
efree(address_info->addrinfo.ai_canonname);
}
efree(address_info->addrinfo.ai_addr);
zend_object_std_dtor(&address_info->std);
}
/* Module registration */
zend_module_entry sockets_module_entry = {
STANDARD_MODULE_HEADER,
"sockets",
ext_functions,
PHP_MINIT(sockets),
PHP_MSHUTDOWN(sockets),
NULL,
PHP_RSHUTDOWN(sockets),
PHP_MINFO(sockets),
PHP_SOCKETS_VERSION,
PHP_MODULE_GLOBALS(sockets),
PHP_GINIT(sockets),
PHP_GSHUTDOWN(sockets),
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
#ifdef COMPILE_DL_SOCKETS
#ifdef ZTS
ZEND_TSRMLS_CACHE_DEFINE()
#endif
ZEND_GET_MODULE(sockets)
#endif
#ifndef HAVE_INET_NTOP
/* inet_ntop should be used instead of inet_ntoa */
int inet_ntoa_lock = 0;
#endif
static int php_open_listen_sock(php_socket *sock, int port, int backlog) /* {{{ */
{
struct sockaddr_in la;
struct hostent *hp;
#ifndef PHP_WIN32
if ((hp = php_network_gethostbyname("0.0.0.0")) == NULL) {
#else
if ((hp = php_network_gethostbyname("localhost")) == NULL) {
#endif
return 0;
}
memcpy((char *) &la.sin_addr, hp->h_addr, hp->h_length);
la.sin_family = hp->h_addrtype;
la.sin_port = htons((unsigned short) port);
sock->bsd_socket = socket(PF_INET, SOCK_STREAM, 0);
sock->blocking = 1;
if (IS_INVALID_SOCKET(sock)) {
PHP_SOCKET_ERROR(sock, "unable to create listening socket", errno);
return 0;
}
sock->type = PF_INET;
if (bind(sock->bsd_socket, (struct sockaddr *)&la, sizeof(la)) != 0) {
PHP_SOCKET_ERROR(sock, "unable to bind to given address", errno);
close(sock->bsd_socket);
return 0;
}
if (listen(sock->bsd_socket, backlog) != 0) {
PHP_SOCKET_ERROR(sock, "unable to listen on socket", errno);
close(sock->bsd_socket);
return 0;
}
return 1;
}
/* }}} */
static int php_accept_connect(php_socket *in_sock, php_socket *out_sock, struct sockaddr *la, socklen_t *la_len) /* {{{ */
{
out_sock->bsd_socket = accept(in_sock->bsd_socket, la, la_len);
if (IS_INVALID_SOCKET(out_sock)) {
PHP_SOCKET_ERROR(out_sock, "unable to accept incoming connection", errno);
return 0;
}
out_sock->error = 0;
out_sock->blocking = 1;
out_sock->type = la->sa_family;
return 1;
}
/* }}} */
/* {{{ php_read -- wrapper around read() so that it only reads to a \r or \n. */
static int php_read(php_socket *sock, void *buf, size_t maxlen, int flags)
{
int m = 0;
size_t n = 0;
int no_read = 0;
int nonblock = 0;
char *t = (char *) buf;
#ifndef PHP_WIN32
m = fcntl(sock->bsd_socket, F_GETFL);
if (m < 0) {
return m;
}
nonblock = (m & O_NONBLOCK);
m = 0;
#else
nonblock = !sock->blocking;
#endif
set_errno(0);
*t = '\0';
while (*t != '\n' && *t != '\r' && n < maxlen) {
if (m > 0) {
t++;
n++;
} else if (m == 0) {
no_read++;
if (nonblock && no_read >= 2) {
return n;
/* The first pass, m always is 0, so no_read becomes 1
* in the first pass. no_read becomes 2 in the second pass,
* and if this is nonblocking, we should return.. */
}
if (no_read > 200) {
set_errno(ECONNRESET);
return -1;
}
}
if (n < maxlen) {
m = recv(sock->bsd_socket, (void *) t, 1, flags);
}
if (errno != 0 && errno != ESPIPE && errno != EAGAIN) {
return -1;
}
set_errno(0);
}
if (n < maxlen) {
n++;
/* The only reasons it makes it to here is
* if '\n' or '\r' are encountered. So, increase
* the return by 1 to make up for the lack of the
* '\n' or '\r' in the count (since read() takes
* place at the end of the loop..) */
}
return n;
}
/* }}} */
char *sockets_strerror(int error) /* {{{ */
{
const char *buf;
#ifndef PHP_WIN32
if (error < -10000) {
error = -error - 10000;
#ifdef HAVE_HSTRERROR
buf = hstrerror(error);
#else
{
if (SOCKETS_G(strerror_buf)) {
efree(SOCKETS_G(strerror_buf));
}
spprintf(&(SOCKETS_G(strerror_buf)), 0, "Host lookup error %d", error);
buf = SOCKETS_G(strerror_buf);
}
#endif
} else {
buf = strerror(error);
}
#else
{
char *tmp = php_win32_error_to_msg(error);
buf = NULL;
if (tmp[0]) {
if (SOCKETS_G(strerror_buf)) {
efree(SOCKETS_G(strerror_buf));
}
SOCKETS_G(strerror_buf) = estrdup(tmp);
free(tmp);
buf = SOCKETS_G(strerror_buf);
}
}
#endif
return (buf ? (char *) buf : "");
}
/* }}} */
#ifdef PHP_WIN32
static void sockets_destroy_wsa_info(zval *data)
{/*{{{*/
HANDLE h = (HANDLE)Z_PTR_P(data);
CloseHandle(h);
}/*}}}*/
#endif
/* {{{ PHP_GINIT_FUNCTION */
static PHP_GINIT_FUNCTION(sockets)
{
#if defined(COMPILE_DL_SOCKETS) && defined(ZTS)
ZEND_TSRMLS_CACHE_UPDATE();
#endif
sockets_globals->last_error = 0;
sockets_globals->strerror_buf = NULL;
#ifdef PHP_WIN32
sockets_globals->wsa_child_count = 0;
zend_hash_init(&sockets_globals->wsa_info, 0, NULL, sockets_destroy_wsa_info, 1);
#endif
}
/* }}} */
/* {{{ PHP_GSHUTDOWN_FUNCTION */
static PHP_GSHUTDOWN_FUNCTION(sockets)
{
#ifdef PHP_WIN32
zend_hash_destroy(&sockets_globals->wsa_info);
#endif
}
/* }}} */
/* {{{ PHP_MINIT_FUNCTION */
static PHP_MINIT_FUNCTION(sockets)
{
#if defined(COMPILE_DL_SOCKETS) && defined(ZTS)
ZEND_TSRMLS_CACHE_UPDATE();
#endif
socket_ce = register_class_Socket();
socket_ce->create_object = socket_create_object;
socket_ce->default_object_handlers = &socket_object_handlers;
memcpy(&socket_object_handlers, &std_object_handlers, sizeof(zend_object_handlers));
socket_object_handlers.offset = XtOffsetOf(php_socket, std);
socket_object_handlers.free_obj = socket_free_obj;
socket_object_handlers.get_constructor = socket_get_constructor;
socket_object_handlers.clone_obj = NULL;
socket_object_handlers.get_gc = socket_get_gc;
socket_object_handlers.compare = zend_objects_not_comparable;
address_info_ce = register_class_AddressInfo();
address_info_ce->create_object = address_info_create_object;
address_info_ce->default_object_handlers = &address_info_object_handlers;
memcpy(&address_info_object_handlers, &std_object_handlers, sizeof(zend_object_handlers));
address_info_object_handlers.offset = XtOffsetOf(php_addrinfo, std);
address_info_object_handlers.free_obj = address_info_free_obj;
address_info_object_handlers.get_constructor = address_info_get_constructor;
address_info_object_handlers.clone_obj = NULL;
address_info_object_handlers.compare = zend_objects_not_comparable;
register_sockets_symbols(module_number);
php_socket_sendrecvmsg_init(INIT_FUNC_ARGS_PASSTHRU);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION */
static PHP_MSHUTDOWN_FUNCTION(sockets)
{
php_socket_sendrecvmsg_shutdown(SHUTDOWN_FUNC_ARGS_PASSTHRU);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION */
static PHP_MINFO_FUNCTION(sockets)
{
php_info_print_table_start();
php_info_print_table_row(2, "Sockets Support", "enabled");
php_info_print_table_end();
}
/* }}} */
/* {{{ PHP_RSHUTDOWN_FUNCTION */
static PHP_RSHUTDOWN_FUNCTION(sockets)
{
if (SOCKETS_G(strerror_buf)) {
efree(SOCKETS_G(strerror_buf));
SOCKETS_G(strerror_buf) = NULL;
}
return SUCCESS;
}
/* }}} */
static int php_sock_array_to_fd_set(uint32_t arg_num, zval *sock_array, fd_set *fds, PHP_SOCKET *max_fd) /* {{{ */
{
zval *element;
php_socket *php_sock;
int num = 0;
if (Z_TYPE_P(sock_array) != IS_ARRAY) return 0;
ZEND_HASH_FOREACH_VAL(Z_ARRVAL_P(sock_array), element) {
ZVAL_DEREF(element);
if (Z_TYPE_P(element) != IS_OBJECT || Z_OBJCE_P(element) != socket_ce) {
zend_argument_type_error(arg_num, "must only have elements of type Socket, %s given", zend_zval_type_name(element));
return -1;
}
php_sock = Z_SOCKET_P(element);
if (IS_INVALID_SOCKET(php_sock)) {
zend_argument_type_error(arg_num, "contains a closed socket");
return -1;
}
PHP_SAFE_FD_SET(php_sock->bsd_socket, fds);
if (php_sock->bsd_socket > *max_fd) {
*max_fd = php_sock->bsd_socket;
}
num++;
} ZEND_HASH_FOREACH_END();
return num ? 1 : 0;
}
/* }}} */
static int php_sock_array_from_fd_set(zval *sock_array, fd_set *fds) /* {{{ */
{
zval *element;
zval *dest_element;
php_socket *php_sock;
zval new_hash;
int num = 0;
zend_ulong num_key;
zend_string *key;
ZEND_ASSERT(Z_TYPE_P(sock_array) == IS_ARRAY);
array_init(&new_hash);
ZEND_HASH_FOREACH_KEY_VAL(Z_ARRVAL_P(sock_array), num_key, key, element) {
ZVAL_DEREF(element);
php_sock = Z_SOCKET_P(element);
ZEND_ASSERT(php_sock); /* element is supposed to be Socket object */
ZEND_ASSERT(!IS_INVALID_SOCKET(php_sock));
if (PHP_SAFE_FD_ISSET(php_sock->bsd_socket, fds)) {
/* Add fd to new array */
if (key) {
dest_element = zend_hash_add(Z_ARRVAL(new_hash), key, element);
} else {
dest_element = zend_hash_index_update(Z_ARRVAL(new_hash), num_key, element);
}
if (dest_element) {
Z_ADDREF_P(dest_element);
}
}
num++;
} ZEND_HASH_FOREACH_END();
/* Destroy old array, add new one */
zval_ptr_dtor(sock_array);
ZVAL_COPY_VALUE(sock_array, &new_hash);
return num ? 1 : 0;
}
/* }}} */
/* {{{ Runs the select() system call on the sets mentioned with a timeout specified by tv_sec and tv_usec */
PHP_FUNCTION(socket_select)
{
zval *r_array, *w_array, *e_array;
struct timeval tv;
struct timeval *tv_p = NULL;
fd_set rfds, wfds, efds;
PHP_SOCKET max_fd = 0;
int retval, sets = 0;
zend_long sec, usec = 0;
bool sec_is_null = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "a!a!a!l!|l", &r_array, &w_array, &e_array, &sec, &sec_is_null, &usec) == FAILURE) {
RETURN_THROWS();
}
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&efds);
if (r_array != NULL) {
sets += retval = php_sock_array_to_fd_set(1, r_array, &rfds, &max_fd);
if (retval == -1) {
RETURN_THROWS();
}
}
if (w_array != NULL) {
sets += retval = php_sock_array_to_fd_set(2, w_array, &wfds, &max_fd);
if (retval == -1) {
RETURN_THROWS();
}
}
if (e_array != NULL) {
sets += retval = php_sock_array_to_fd_set(3, e_array, &efds, &max_fd);
if (retval == -1) {
RETURN_THROWS();
}
}
if (!sets) {
zend_value_error("socket_select(): At least one array argument must be passed");
RETURN_THROWS();
}
PHP_SAFE_MAX_FD(max_fd, 0); /* someone needs to make this look more like stream_socket_select */
/* If seconds is not set to null, build the timeval, else we wait indefinitely */
if (!sec_is_null) {
/* Solaris + BSD do not like microsecond values which are >= 1 sec */
if (usec > 999999) {
tv.tv_sec = sec + (usec / 1000000);
tv.tv_usec = usec % 1000000;
} else {
tv.tv_sec = sec;
tv.tv_usec = usec;
}
tv_p = &tv;
}
retval = select(max_fd+1, &rfds, &wfds, &efds, tv_p);
if (retval == -1) {
SOCKETS_G(last_error) = errno;
php_error_docref(NULL, E_WARNING, "Unable to select [%d]: %s", errno, sockets_strerror(errno));
RETURN_FALSE;
}
if (r_array != NULL) php_sock_array_from_fd_set(r_array, &rfds);
if (w_array != NULL) php_sock_array_from_fd_set(w_array, &wfds);
if (e_array != NULL) php_sock_array_from_fd_set(e_array, &efds);
RETURN_LONG(retval);
}
/* }}} */
/* {{{ Opens a socket on port to accept connections */
PHP_FUNCTION(socket_create_listen)
{
php_socket *php_sock;
zend_long port, backlog = 128;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l|l", &port, &backlog) == FAILURE) {
RETURN_THROWS();
}
object_init_ex(return_value, socket_ce);
php_sock = Z_SOCKET_P(return_value);
if (!php_open_listen_sock(php_sock, port, backlog)) {
zval_ptr_dtor(return_value);
RETURN_FALSE;
}
php_sock->error = 0;
php_sock->blocking = 1;
}
/* }}} */
/* {{{ Accepts a connection on the listening socket fd */
PHP_FUNCTION(socket_accept)
{
zval *arg1;
php_socket *php_sock, *new_sock;
php_sockaddr_storage sa;
socklen_t php_sa_len = sizeof(sa);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &arg1, socket_ce) == FAILURE) {
RETURN_THROWS();
}
php_sock = Z_SOCKET_P(arg1);
ENSURE_SOCKET_VALID(php_sock);
object_init_ex(return_value, socket_ce);
new_sock = Z_SOCKET_P(return_value);
if (!php_accept_connect(php_sock, new_sock, (struct sockaddr*)&sa, &php_sa_len)) {
zval_ptr_dtor(return_value);
RETURN_FALSE;
}
}
/* }}} */
/* {{{ Sets nonblocking mode on a socket resource */
PHP_FUNCTION(socket_set_nonblock)
{
zval *arg1;
php_socket *php_sock;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &arg1, socket_ce) == FAILURE) {
RETURN_THROWS();
}
php_sock = Z_SOCKET_P(arg1);
ENSURE_SOCKET_VALID(php_sock);
if (!Z_ISUNDEF(php_sock->zstream)) {
php_stream *stream;
/* omit notice if resource doesn't exist anymore */
stream = zend_fetch_resource2_ex(&php_sock->zstream, NULL, php_file_le_stream(), php_file_le_pstream());
if (stream != NULL) {
if (php_stream_set_option(stream, PHP_STREAM_OPTION_BLOCKING, 0,
NULL) != -1) {
php_sock->blocking = 0;
RETURN_TRUE;
}
}
}
if (php_set_sock_blocking(php_sock->bsd_socket, 0) == SUCCESS) {
php_sock->blocking = 0;
RETURN_TRUE;
} else {
PHP_SOCKET_ERROR(php_sock, "unable to set nonblocking mode", errno);
RETURN_FALSE;
}
}
/* }}} */
/* {{{ Sets blocking mode on a socket resource */
PHP_FUNCTION(socket_set_block)
{
zval *arg1;
php_socket *php_sock;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &arg1, socket_ce) == FAILURE) {
RETURN_THROWS();
}
php_sock = Z_SOCKET_P(arg1);
ENSURE_SOCKET_VALID(php_sock);
/* if socket was created from a stream, give the stream a chance to take
* care of the operation itself, thereby allowing it to update its internal
* state */
if (!Z_ISUNDEF(php_sock->zstream)) {
php_stream *stream;
stream = zend_fetch_resource2_ex(&php_sock->zstream, NULL, php_file_le_stream(), php_file_le_pstream());
if (stream != NULL) {
if (php_stream_set_option(stream, PHP_STREAM_OPTION_BLOCKING, 1,
NULL) != -1) {
php_sock->blocking = 1;
RETURN_TRUE;
}
}
}
if (php_set_sock_blocking(php_sock->bsd_socket, 1) == SUCCESS) {
php_sock->blocking = 1;
RETURN_TRUE;
} else {
PHP_SOCKET_ERROR(php_sock, "unable to set blocking mode", errno);
RETURN_FALSE;
}
}
/* }}} */
/* {{{ Sets the maximum number of connections allowed to be waited for on the socket specified by fd */
PHP_FUNCTION(socket_listen)
{
zval *arg1;
php_socket *php_sock;
zend_long backlog = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "O|l", &arg1, socket_ce, &backlog) == FAILURE) {
RETURN_THROWS();
}
php_sock = Z_SOCKET_P(arg1);
ENSURE_SOCKET_VALID(php_sock);
if (listen(php_sock->bsd_socket, backlog) != 0) {
PHP_SOCKET_ERROR(php_sock, "unable to listen on socket", errno);
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ Closes a file descriptor */
PHP_FUNCTION(socket_close)
{
zval *arg1;
php_socket *php_socket;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "O", &arg1, socket_ce) == FAILURE) {
RETURN_THROWS();
}
php_socket = Z_SOCKET_P(arg1);
ENSURE_SOCKET_VALID(php_socket);
if (!Z_ISUNDEF(php_socket->zstream)) {
php_stream *stream = NULL;
php_stream_from_zval_no_verify(stream, &php_socket->zstream);
if (stream != NULL) {
/* close & destroy stream, incl. removing it from the rsrc list;
* resource stored in php_sock->zstream will become invalid */
php_stream_free(stream,
PHP_STREAM_FREE_KEEP_RSRC | PHP_STREAM_FREE_CLOSE |
(stream->is_persistent?PHP_STREAM_FREE_CLOSE_PERSISTENT:0));
}
} else {
if (!IS_INVALID_SOCKET(php_socket)) {
close(php_socket->bsd_socket);
}
}
ZVAL_UNDEF(&php_socket->zstream);
php_socket->bsd_socket = -1;
}
/* }}} */
/* {{{ Writes the buffer to the socket resource, length is optional */
PHP_FUNCTION(socket_write)
{
zval *arg1;
php_socket *php_sock;
int retval;
size_t str_len;
zend_long length = 0;
bool length_is_null = 1;
char *str;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Os|l!", &arg1, socket_ce, &str, &str_len, &length, &length_is_null) == FAILURE) {
RETURN_THROWS();
}
php_sock = Z_SOCKET_P(arg1);
ENSURE_SOCKET_VALID(php_sock);
if (length < 0) {
zend_argument_value_error(3, "must be greater than or equal to 0");
RETURN_THROWS();
}
if (length_is_null) {
length = str_len;
}
#ifndef PHP_WIN32
retval = write(php_sock->bsd_socket, str, MIN(length, str_len));
#else
retval = send(php_sock->bsd_socket, str, min(length, str_len), 0);
#endif
if (retval < 0) {
PHP_SOCKET_ERROR(php_sock, "unable to write to socket", errno);
RETURN_FALSE;
}
RETURN_LONG(retval);
}
/* }}} */
/* {{{ Reads a maximum of length bytes from socket */
PHP_FUNCTION(socket_read)
{
zval *arg1;
php_socket *php_sock;
zend_string *tmpbuf;
int retval;
zend_long length, type = PHP_BINARY_READ;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Ol|l", &arg1, socket_ce, &length, &type) == FAILURE) {
RETURN_THROWS();
}
php_sock = Z_SOCKET_P(arg1);
ENSURE_SOCKET_VALID(php_sock);
/* overflow check */
if ((length + 1) < 2) {
RETURN_FALSE;
}
tmpbuf = zend_string_alloc(length, 0);
if (type == PHP_NORMAL_READ) {
retval = php_read(php_sock, ZSTR_VAL(tmpbuf), length, 0);
} else {
retval = recv(php_sock->bsd_socket, ZSTR_VAL(tmpbuf), length, 0);
}
if (retval == -1) {
/* if the socket is in non-blocking mode and there's no data to read,
don't output any error, as this is a normal situation, and not an error */
if (PHP_IS_TRANSIENT_ERROR(errno)) {
php_sock->error = errno;
SOCKETS_G(last_error) = errno;
} else {
PHP_SOCKET_ERROR(php_sock, "unable to read from socket", errno);
}
zend_string_efree(tmpbuf);
RETURN_FALSE;
} else if (!retval) {
zend_string_efree(tmpbuf);
RETURN_EMPTY_STRING();
}
tmpbuf = zend_string_truncate(tmpbuf, retval, 0);
ZSTR_LEN(tmpbuf) = retval;
ZSTR_VAL(tmpbuf)[ZSTR_LEN(tmpbuf)] = '\0' ;
RETURN_NEW_STR(tmpbuf);
}
/* }}} */
/* {{{ Queries the remote side of the given socket which may either result in host/port or in a UNIX filesystem path, dependent on its type. */
PHP_FUNCTION(socket_getsockname)
{
zval *arg1, *addr, *port = NULL;
php_sockaddr_storage sa_storage;
php_socket *php_sock;
struct sockaddr *sa;
struct sockaddr_in *sin;
#if HAVE_IPV6
struct sockaddr_in6 *sin6;
#endif
#ifdef HAVE_INET_NTOP
char addrbuf[INET6_ADDRSTRLEN];
#endif
struct sockaddr_un *s_un;
const char *addr_string;
socklen_t salen = sizeof(php_sockaddr_storage);
if (zend_parse_parameters(ZEND_NUM_ARGS(), "Oz|z", &arg1, socket_ce, &addr, &port) == FAILURE) {
RETURN_THROWS();
}
php_sock = Z_SOCKET_P(arg1);
ENSURE_SOCKET_VALID(php_sock);
sa = (struct sockaddr *) &sa_storage;
if (getsockname(php_sock->bsd_socket, sa, &salen) != 0) {
PHP_SOCKET_ERROR(php_sock, "unable to retrieve socket name", errno);
RETURN_FALSE;
}
switch (sa->sa_family) {
#if HAVE_IPV6
case AF_INET6:
sin6 = (struct sockaddr_in6 *) sa;
inet_ntop(AF_INET6, &sin6->sin6_addr, addrbuf, sizeof(addrbuf));
ZEND_TRY_ASSIGN_REF_STRING(addr, addrbuf);
if (port != NULL) {
ZEND_TRY_ASSIGN_REF_LONG(port, htons(sin6->sin6_port));
}
RETURN_TRUE;
break;
#endif
case AF_INET:
sin = (struct sockaddr_in *) sa;
#ifdef HAVE_INET_NTOP
addr_string = inet_ntop(AF_INET, &sin->sin_addr, addrbuf, sizeof(addrbuf));
#else
while (inet_ntoa_lock == 1);
inet_ntoa_lock = 1;
addr_string = inet_ntoa(sin->sin_addr);
inet_ntoa_lock = 0;
#endif
ZEND_TRY_ASSIGN_REF_STRING(addr, addr_string);
if (port != NULL) {
ZEND_TRY_ASSIGN_REF_LONG(port, htons(sin->sin_port));
}
RETURN_TRUE;
break;
case AF_UNIX:
s_un = (struct sockaddr_un *) sa;
ZEND_TRY_ASSIGN_REF_STRING(addr, s_un->sun_path);
RETURN_TRUE;
break;
default:
zend_argument_value_error(1, "must be one of AF_UNIX, AF_INET, or AF_INET6");
RETURN_THROWS();
}
}
/* }}} */
/* {{{ Queries the remote side of the given socket which may either result in host/port or in a UNIX filesystem path, dependent on its type. */
PHP_FUNCTION(socket_getpeername)
{
zval *arg1, *arg2, *arg3 = NULL;
php_sockaddr_storage sa_storage;
php_socket *php_sock;
struct sockaddr *sa;
struct sockaddr_in *sin;
#if HAVE_IPV6
struct sockaddr_in6 *sin6;