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- Committer: Monty Taylor
- Date: 2010-08-12 20:27:32 UTC
- mto: (1720.1.5 build)
- mto: This revision was merged to the branch mainline in revision 1722.
- Revision ID: mordred@inaugust.com-20100812202732-9kzchbkvkyki4n3u
Merged libdrizzle directly into tree.
- files added:
- docs
- examples
- libdrizzle
- win32
- win32/gnulib
- files renamed:
- Doxyfile => docs/Doxyfile.drizzled
- files modified:
- Makefile.am
added
removed
libdrizzle/conn.c
1
/*
2
* Drizzle Client & Protocol Library
3
*
4
* Copyright (C) 2008 Eric Day (eday@oddments.org)
5
* All rights reserved.
6
*
7
* Use and distribution licensed under the BSD license. See
8
* the COPYING file in this directory for full text.
9
*/
10
11
/**
12
* @file
13
* @brief Connection Definitions
14
*/
15
16
#include "common.h"
17
18
/**
19
* @addtogroup drizzle_con_static Static Connection Declarations
20
* @ingroup drizzle_con
21
* @{
22
*/
23
24
/**
25
* Set socket options for a connection.
26
*
27
* @param[in] con Connection structure previously initialized with
28
* drizzle_con_create(), drizzle_con_clone(), or related functions.
29
* @return Standard drizzle return value.
30
*/
31
static drizzle_return_t _con_setsockopt(drizzle_con_st *con);
32
33
/** @} */
34
35
/*
36
* Common Definitions
37
*/
38
39
int drizzle_con_fd(const drizzle_con_st *con)
40
{
41
return con->fd;
42
}
43
44
drizzle_return_t drizzle_con_set_fd(drizzle_con_st *con, int fd)
45
{
46
drizzle_return_t ret;
47
48
con->fd= fd;
49
50
ret= _con_setsockopt(con);
51
if (ret != DRIZZLE_RETURN_OK)
52
con->drizzle->last_errno= errno;
53
54
return ret;
55
}
56
57
void drizzle_con_close(drizzle_con_st *con)
58
{
59
if (con->fd == -1)
60
return;
61
62
(void)close(con->fd);
63
con->fd= -1;
64
65
con->options&= (drizzle_con_options_t)~DRIZZLE_CON_READY;
66
con->packet_number= 0;
67
con->buffer_ptr= con->buffer;
68
con->buffer_size= 0;
69
con->events= 0;
70
con->revents= 0;
71
72
drizzle_state_reset(con);
73
}
74
75
drizzle_return_t drizzle_con_set_events(drizzle_con_st *con, short events)
76
{
77
drizzle_return_t ret;
78
79
if ((con->events | events) == con->events)
80
return DRIZZLE_RETURN_OK;
81
82
con->events|= events;
83
84
if (con->drizzle->event_watch_fn != NULL)
85
{
86
ret= con->drizzle->event_watch_fn(con, con->events,
87
con->drizzle->event_watch_context);
88
if (ret != DRIZZLE_RETURN_OK)
89
{
90
drizzle_con_close(con);
91
return ret;
92
}
93
}
94
95
return DRIZZLE_RETURN_OK;
96
}
97
98
drizzle_return_t drizzle_con_set_revents(drizzle_con_st *con, short revents)
99
{
100
drizzle_return_t ret;
101
102
if (revents != 0)
103
con->options|= DRIZZLE_CON_IO_READY;
104
105
con->revents= revents;
106
107
/* Remove external POLLOUT watch if we didn't ask for it. Otherwise we spin
108
forever until another POLLIN state change. This is much more efficient
109
than removing POLLOUT on every state change since some external polling
110
mechanisms need to use a system call to change flags (like Linux epoll). */
111
if (revents & POLLOUT && !(con->events & POLLOUT) &&
112
con->drizzle->event_watch_fn != NULL)
113
{
114
ret= con->drizzle->event_watch_fn(con, con->events,
115
con->drizzle->event_watch_context);
116
if (ret != DRIZZLE_RETURN_OK)
117
{
118
drizzle_con_close(con);
119
return ret;
120
}
121
}
122
123
con->events&= (short)~revents;
124
125
return DRIZZLE_RETURN_OK;
126
}
127
128
drizzle_st *drizzle_con_drizzle(const drizzle_con_st *con)
129
{
130
return con->drizzle;
131
}
132
133
const char *drizzle_con_error(const drizzle_con_st *con)
134
{
135
return drizzle_error(con->drizzle);
136
}
137
138
int drizzle_con_errno(const drizzle_con_st *con)
139
{
140
return drizzle_errno(con->drizzle);
141
}
142
143
uint16_t drizzle_con_error_code(const drizzle_con_st *con)
144
{
145
return drizzle_error_code(con->drizzle);
146
}
147
148
const char *drizzle_con_sqlstate(const drizzle_con_st *con)
149
{
150
return drizzle_sqlstate(con->drizzle);
151
}
152
153
drizzle_con_options_t drizzle_con_options(const drizzle_con_st *con)
154
{
155
return con->options;
156
}
157
158
void drizzle_con_set_options(drizzle_con_st *con,
159
drizzle_con_options_t options)
160
{
161
con->options= options;
162
}
163
164
void drizzle_con_add_options(drizzle_con_st *con,
165
drizzle_con_options_t options)
166
{
167
con->options|= options;
168
169
/* If asking for the experimental Drizzle protocol, clean the MySQL flag. */
170
if (con->options & DRIZZLE_CON_EXPERIMENTAL)
171
con->options&= (drizzle_con_options_t)~DRIZZLE_CON_MYSQL;
172
}
173
174
void drizzle_con_remove_options(drizzle_con_st *con,
175
drizzle_con_options_t options)
176
{
177
con->options&= ~options;
178
}
179
180
const char *drizzle_con_host(const drizzle_con_st *con)
181
{
182
if (con->socket_type == DRIZZLE_CON_SOCKET_TCP)
183
{
184
if (con->socket.tcp.host == NULL && !(con->options & DRIZZLE_CON_LISTEN))
185
return DRIZZLE_DEFAULT_TCP_HOST;
186
187
return con->socket.tcp.host;
188
}
189
190
return NULL;
191
}
192
193
in_port_t drizzle_con_port(const drizzle_con_st *con)
194
{
195
if (con->socket_type == DRIZZLE_CON_SOCKET_TCP)
196
{
197
if (con->socket.tcp.port != 0)
198
return con->socket.tcp.port;
199
200
if (con->options & DRIZZLE_CON_MYSQL)
201
return DRIZZLE_DEFAULT_TCP_PORT_MYSQL;
202
203
return DRIZZLE_DEFAULT_TCP_PORT;
204
}
205
206
return 0;
207
}
208
209
void drizzle_con_set_tcp(drizzle_con_st *con, const char *host, in_port_t port)
210
{
211
drizzle_con_reset_addrinfo(con);
212
213
con->socket_type= DRIZZLE_CON_SOCKET_TCP;
214
215
if (host == NULL)
216
con->socket.tcp.host= NULL;
217
else
218
{
219
con->socket.tcp.host= con->socket.tcp.host_buffer;
220
strncpy(con->socket.tcp.host, host, NI_MAXHOST);
221
con->socket.tcp.host[NI_MAXHOST - 1]= 0;
222
}
223
224
con->socket.tcp.port= port;
225
}
226
227
const char *drizzle_con_user(const drizzle_con_st *con)
228
{
229
return con->user;
230
}
231
232
const char *drizzle_con_password(const drizzle_con_st *con)
233
{
234
return con->password;
235
}
236
237
void drizzle_con_set_auth(drizzle_con_st *con, const char *user,
238
const char *password)
239
{
240
if (user == NULL)
241
con->user[0]= 0;
242
else
243
{
244
strncpy(con->user, user, DRIZZLE_MAX_USER_SIZE);
245
con->user[DRIZZLE_MAX_USER_SIZE - 1]= 0;
246
}
247
248
if (password == NULL)
249
con->password[0]= 0;
250
else
251
{
252
strncpy(con->password, password, DRIZZLE_MAX_PASSWORD_SIZE);
253
con->password[DRIZZLE_MAX_PASSWORD_SIZE - 1]= 0;
254
}
255
}
256
257
const char *drizzle_con_db(const drizzle_con_st *con)
258
{
259
return con->db;
260
}
261
262
void drizzle_con_set_db(drizzle_con_st *con, const char *db)
263
{
264
if (db == NULL)
265
con->db[0]= 0;
266
else
267
{
268
strncpy(con->db, db, DRIZZLE_MAX_DB_SIZE);
269
con->db[DRIZZLE_MAX_DB_SIZE - 1]= 0;
270
}
271
}
272
273
void *drizzle_con_context(const drizzle_con_st *con)
274
{
275
return con->context;
276
}
277
278
void drizzle_con_set_context(drizzle_con_st *con, void *context)
279
{
280
con->context= context;
281
}
282
283
void drizzle_con_set_context_free_fn(drizzle_con_st *con,
284
drizzle_con_context_free_fn *function)
285
{
286
con->context_free_fn= function;
287
}
288
289
uint8_t drizzle_con_protocol_version(const drizzle_con_st *con)
290
{
291
return con->protocol_version;
292
}
293
294
const char *drizzle_con_server_version(const drizzle_con_st *con)
295
{
296
return con->server_version;
297
}
298
299
uint32_t drizzle_con_server_version_number(const drizzle_con_st *con)
300
{
301
uint32_t major;
302
uint32_t minor;
303
uint32_t version;
304
const char *current;
305
char *end;
306
307
current= con->server_version;
308
309
major= (uint32_t)strtoul(current, &end, 10);
310
current= end + 1;
311
minor= (uint32_t)strtoul(current, &end, 10);
312
current= end + 1;
313
version= (uint32_t)strtoul(current, &end, 10);
314
315
return (major * 10000) + (minor * 100) + version;
316
}
317
318
uint32_t drizzle_con_thread_id(const drizzle_con_st *con)
319
{
320
return con->thread_id;
321
}
322
323
const uint8_t *drizzle_con_scramble(const drizzle_con_st *con)
324
{
325
return con->scramble;
326
}
327
328
drizzle_capabilities_t drizzle_con_capabilities(const drizzle_con_st *con)
329
{
330
return con->capabilities;
331
}
332
333
drizzle_charset_t drizzle_con_charset(const drizzle_con_st *con)
334
{
335
return con->charset;
336
}
337
338
drizzle_con_status_t drizzle_con_status(const drizzle_con_st *con)
339
{
340
return con->status;
341
}
342
343
uint32_t drizzle_con_max_packet_size(const drizzle_con_st *con)
344
{
345
return con->max_packet_size;
346
}
347
348
/*
349
* Client Definitions
350
*/
351
352
drizzle_return_t drizzle_con_connect(drizzle_con_st *con)
353
{
354
if (con->options & DRIZZLE_CON_READY)
355
return DRIZZLE_RETURN_OK;
356
357
if (drizzle_state_none(con))
358
{
359
if (!(con->options & DRIZZLE_CON_RAW_PACKET))
360
{
361
drizzle_state_push(con, drizzle_state_handshake_server_read);
362
drizzle_state_push(con, drizzle_state_packet_read);
363
}
364
365
drizzle_state_push(con, drizzle_state_connect);
366
drizzle_state_push(con, drizzle_state_addrinfo);
367
}
368
369
return drizzle_state_loop(con);
370
}
371
372
drizzle_result_st *drizzle_con_quit(drizzle_con_st *con,
373
drizzle_result_st *result,
374
drizzle_return_t *ret_ptr)
375
{
376
return drizzle_con_command_write(con, result, DRIZZLE_COMMAND_QUIT, NULL, 0,
377
0, ret_ptr);
378
}
379
380
drizzle_result_st *drizzle_quit(drizzle_con_st *con,
381
drizzle_result_st *result,
382
drizzle_return_t *ret_ptr)
383
{
384
return drizzle_con_quit(con, result, ret_ptr);
385
}
386
387
drizzle_result_st *drizzle_con_select_db(drizzle_con_st *con,
388
drizzle_result_st *result,
389
const char *db,
390
drizzle_return_t *ret_ptr)
391
{
392
drizzle_con_set_db(con, db);
393
return drizzle_con_command_write(con, result, DRIZZLE_COMMAND_INIT_DB,
394
db, strlen(db), strlen(db), ret_ptr);
395
}
396
397
drizzle_result_st *drizzle_select_db(drizzle_con_st *con,
398
drizzle_result_st *result,
399
const char *db,
400
drizzle_return_t *ret_ptr)
401
{
402
return drizzle_con_select_db(con, result, db, ret_ptr);
403
}
404
405
drizzle_result_st *drizzle_con_shutdown(drizzle_con_st *con,
406
drizzle_result_st *result,
407
drizzle_return_t *ret_ptr)
408
{
409
if (con->options & DRIZZLE_CON_MYSQL)
410
{
411
return drizzle_con_command_write(con, result, DRIZZLE_COMMAND_SHUTDOWN,
412
"0", 1, 1, ret_ptr);
413
}
414
415
return drizzle_con_command_write(con, result, DRIZZLE_COMMAND_SHUTDOWN, NULL,
416
0, 0, ret_ptr);
417
}
418
419
drizzle_result_st *drizzle_shutdown(drizzle_con_st *con,
420
drizzle_result_st *result, uint32_t level,
421
drizzle_return_t *ret_ptr)
422
{
423
(void) level;
424
return drizzle_con_shutdown(con, result, ret_ptr);
425
}
426
427
drizzle_result_st *drizzle_con_ping(drizzle_con_st *con,
428
drizzle_result_st *result,
429
drizzle_return_t *ret_ptr)
430
{
431
return drizzle_con_command_write(con, result, DRIZZLE_COMMAND_PING, NULL, 0,
432
0, ret_ptr);
433
}
434
435
drizzle_result_st *drizzle_ping(drizzle_con_st *con,
436
drizzle_result_st *result,
437
drizzle_return_t *ret_ptr)
438
{
439
return drizzle_con_ping(con, result, ret_ptr);
440
}
441
442
drizzle_result_st *drizzle_con_command_write(drizzle_con_st *con,
443
drizzle_result_st *result,
444
drizzle_command_t command,
445
const void *data, size_t size,
446
size_t total,
447
drizzle_return_t *ret_ptr)
448
{
449
if (!(con->options & DRIZZLE_CON_READY))
450
{
451
if (con->options & DRIZZLE_CON_RAW_PACKET)
452
{
453
drizzle_set_error(con->drizzle, "drizzle_command_write",
454
"connection not ready");
455
*ret_ptr= DRIZZLE_RETURN_NOT_READY;
456
return result;
457
}
458
459
*ret_ptr= drizzle_con_connect(con);
460
if (*ret_ptr != DRIZZLE_RETURN_OK)
461
return result;
462
}
463
464
if (drizzle_state_none(con))
465
{
466
if (con->options & (DRIZZLE_CON_RAW_PACKET | DRIZZLE_CON_NO_RESULT_READ))
467
con->result= NULL;
468
else
469
{
470
con->result= drizzle_result_create(con, result);
471
if (con->result == NULL)
472
{
473
*ret_ptr= DRIZZLE_RETURN_MEMORY;
474
return NULL;
475
}
476
}
477
478
con->command= command;
479
con->command_data= (uint8_t *)data;
480
con->command_size= size;
481
con->command_offset= 0;
482
con->command_total= total;
483
484
drizzle_state_push(con, drizzle_state_command_write);
485
}
486
else if (con->command_data == NULL)
487
{
488
con->command_data= (uint8_t *)data;
489
con->command_size= size;
490
}
491
492
*ret_ptr= drizzle_state_loop(con);
493
if (*ret_ptr == DRIZZLE_RETURN_PAUSE)
494
*ret_ptr= DRIZZLE_RETURN_OK;
495
else if (*ret_ptr != DRIZZLE_RETURN_OK &&
496
*ret_ptr != DRIZZLE_RETURN_IO_WAIT &&
497
*ret_ptr != DRIZZLE_RETURN_ERROR_CODE)
498
{
499
drizzle_result_free(con->result);
500
con->result= result;
501
}
502
503
return con->result;
504
}
505
506
/*
507
* Server Definitions
508
*/
509
510
drizzle_return_t drizzle_con_listen(drizzle_con_st *con)
511
{
512
if (con->options & DRIZZLE_CON_READY)
513
return DRIZZLE_RETURN_OK;
514
515
if (drizzle_state_none(con))
516
{
517
drizzle_state_push(con, drizzle_state_listen);
518
drizzle_state_push(con, drizzle_state_addrinfo);
519
}
520
521
return drizzle_state_loop(con);
522
}
523
524
int drizzle_con_backlog(const drizzle_con_st *con)
525
{
526
return con->backlog;
527
}
528
529
void drizzle_con_set_backlog(drizzle_con_st *con, int backlog)
530
{
531
con->backlog= backlog;
532
}
533
534
void drizzle_con_set_protocol_version(drizzle_con_st *con,
535
uint8_t protocol_version)
536
{
537
con->protocol_version= protocol_version;
538
}
539
540
void drizzle_con_set_server_version(drizzle_con_st *con,
541
const char *server_version)
542
{
543
if (server_version == NULL)
544
con->server_version[0]= 0;
545
else
546
{
547
strncpy(con->server_version, server_version,
548
DRIZZLE_MAX_SERVER_VERSION_SIZE);
549
con->server_version[DRIZZLE_MAX_SERVER_VERSION_SIZE - 1]= 0;
550
}
551
}
552
553
void drizzle_con_set_thread_id(drizzle_con_st *con, uint32_t thread_id)
554
{
555
con->thread_id= thread_id;
556
}
557
558
void drizzle_con_set_scramble(drizzle_con_st *con, const uint8_t *scramble)
559
{
560
if (scramble == NULL)
561
con->scramble= NULL;
562
else
563
{
564
con->scramble= con->scramble_buffer;
565
memcpy(con->scramble, scramble, DRIZZLE_MAX_SCRAMBLE_SIZE);
566
}
567
}
568
569
void drizzle_con_set_capabilities(drizzle_con_st *con,
570
drizzle_capabilities_t capabilities)
571
{
572
con->capabilities= capabilities;
573
}
574
575
void drizzle_con_set_charset(drizzle_con_st *con, drizzle_charset_t charset)
576
{
577
con->charset= charset;
578
}
579
580
void drizzle_con_set_status(drizzle_con_st *con, drizzle_con_status_t status)
581
{
582
con->status= status;
583
}
584
585
void drizzle_con_set_max_packet_size(drizzle_con_st *con,
586
uint32_t max_packet_size)
587
{
588
con->max_packet_size= max_packet_size;
589
}
590
591
void drizzle_con_copy_handshake(drizzle_con_st *con, drizzle_con_st *from)
592
{
593
drizzle_con_set_auth(con, from->user, NULL);
594
drizzle_con_set_scramble(con, from->scramble);
595
drizzle_con_set_db(con, from->db);
596
drizzle_con_set_protocol_version(con, from->protocol_version);
597
drizzle_con_set_server_version(con, from->server_version);
598
drizzle_con_set_thread_id(con, from->thread_id);
599
drizzle_con_set_scramble(con, from->scramble);
600
drizzle_con_set_capabilities(con, from->capabilities);
601
drizzle_con_set_charset(con, from->charset);
602
drizzle_con_set_status(con, from->status);
603
drizzle_con_set_max_packet_size(con, from->max_packet_size);
604
}
605
606
void *drizzle_con_command_read(drizzle_con_st *con,
607
drizzle_command_t *command, size_t *offset,
608
size_t *size, size_t *total,
609
drizzle_return_t *ret_ptr)
610
{
611
if (drizzle_state_none(con))
612
{
613
con->packet_number= 0;
614
con->command_offset= 0;
615
con->command_total= 0;
616
617
drizzle_state_push(con, drizzle_state_command_read);
618
drizzle_state_push(con, drizzle_state_packet_read);
619
}
620
621
*offset= con->command_offset;
622
623
*ret_ptr= drizzle_state_loop(con);
624
if (*ret_ptr == DRIZZLE_RETURN_PAUSE)
625
*ret_ptr= DRIZZLE_RETURN_OK;
626
627
*command= con->command;
628
*size= con->command_size;
629
*total= con->command_total;
630
631
return con->command_data;
632
}
633
634
void *drizzle_con_command_buffer(drizzle_con_st *con,
635
drizzle_command_t *command, size_t *total,
636
drizzle_return_t *ret_ptr)
637
{
638
uint8_t *command_data;
639
size_t offset= 0;
640
size_t size= 0;
641
642
command_data= drizzle_con_command_read(con, command, &offset, &size, total,
643
ret_ptr);
644
if (*ret_ptr != DRIZZLE_RETURN_OK)
645
return NULL;
646
647
if (command_data == NULL)
648
{
649
*total= 0;
650
return NULL;
651
}
652
653
if (con->command_buffer == NULL)
654
{
655
con->command_buffer= malloc((*total) + 1);
656
if (con->command_buffer == NULL)
657
{
658
drizzle_set_error(con->drizzle, "drizzle_command_buffer", "malloc");
659
*ret_ptr= DRIZZLE_RETURN_MEMORY;
660
return NULL;
661
}
662
}
663
664
memcpy(con->command_buffer + offset, command_data, size);
665
666
while ((offset + size) != (*total))
667
{
668
command_data= drizzle_con_command_read(con, command, &offset, &size, total,
669
ret_ptr);
670
if (*ret_ptr != DRIZZLE_RETURN_OK)
671
return NULL;
672
673
memcpy(con->command_buffer + offset, command_data, size);
674
}
675
676
command_data= con->command_buffer;
677
con->command_buffer= NULL;
678
command_data[*total]= 0;
679
680
return command_data;
681
}
682
683
/*
684
* Local Definitions
685
*/
686
687
void drizzle_con_reset_addrinfo(drizzle_con_st *con)
688
{
689
switch (con->socket_type)
690
{
691
case DRIZZLE_CON_SOCKET_TCP:
692
if (con->socket.tcp.addrinfo != NULL)
693
{
694
freeaddrinfo(con->socket.tcp.addrinfo);
695
con->socket.tcp.addrinfo= NULL;
696
}
697
break;
698
699
case DRIZZLE_CON_SOCKET_UDS:
700
con->socket.uds.addrinfo.ai_addr= NULL;
701
break;
702
703
default:
704
break;
705
}
706
707
con->addrinfo_next= NULL;
708
}
709
710
/*
711
* State Definitions
712
*/
713
714
drizzle_return_t drizzle_state_addrinfo(drizzle_con_st *con)
715
{
716
drizzle_con_tcp_st *tcp;
717
const char *host;
718
char port[NI_MAXSERV];
719
struct addrinfo ai;
720
int ret;
721
722
drizzle_log_debug(con->drizzle, "drizzle_state_addrinfo");
723
724
switch (con->socket_type)
725
{
726
case DRIZZLE_CON_SOCKET_TCP:
727
tcp= &(con->socket.tcp);
728
729
if (tcp->addrinfo != NULL)
730
{
731
freeaddrinfo(tcp->addrinfo);
732
tcp->addrinfo= NULL;
733
}
734
735
if (tcp->port != 0)
736
snprintf(port, NI_MAXSERV, "%u", tcp->port);
737
else if (con->options & DRIZZLE_CON_MYSQL)
738
snprintf(port, NI_MAXSERV, "%u", DRIZZLE_DEFAULT_TCP_PORT_MYSQL);
739
else
740
snprintf(port, NI_MAXSERV, "%u", DRIZZLE_DEFAULT_TCP_PORT);
741
742
memset(&ai, 0, sizeof(struct addrinfo));
743
ai.ai_socktype= SOCK_STREAM;
744
ai.ai_protocol= IPPROTO_TCP;
745
746
if (con->options & DRIZZLE_CON_LISTEN)
747
{
748
ai.ai_flags = AI_PASSIVE;
749
ai.ai_family = AF_UNSPEC;
750
host= tcp->host;
751
}
752
else
753
{
754
if (tcp->host == NULL)
755
host= DRIZZLE_DEFAULT_TCP_HOST;
756
else
757
host= tcp->host;
758
}
759
760
ret= getaddrinfo(host, port, &ai, &(tcp->addrinfo));
761
if (ret != 0)
762
{
763
drizzle_set_error(con->drizzle, "drizzle_state_addrinfo",
764
"getaddrinfo:%s", gai_strerror(ret));
765
return DRIZZLE_RETURN_GETADDRINFO;
766
}
767
768
con->addrinfo_next= tcp->addrinfo;
769
770
break;
771
772
case DRIZZLE_CON_SOCKET_UDS:
773
con->addrinfo_next= &(con->socket.uds.addrinfo);
774
break;
775
776
default:
777
break;
778
}
779
780
drizzle_state_pop(con);
781
return DRIZZLE_RETURN_OK;
782
}
783
784
drizzle_return_t drizzle_state_connect(drizzle_con_st *con)
785
{
786
int ret;
787
drizzle_return_t dret;
788
789
drizzle_log_debug(con->drizzle, "drizzle_state_connect");
790
791
if (con->fd != -1)
792
{
793
(void)close(con->fd);
794
con->fd= -1;
795
}
796
797
if (con->addrinfo_next == NULL)
798
{
799
drizzle_set_error(con->drizzle, "drizzle_state_connect",
800
"could not connect");
801
drizzle_state_reset(con);
802
return DRIZZLE_RETURN_COULD_NOT_CONNECT;
803
}
804
805
con->fd= socket(con->addrinfo_next->ai_family,
806
con->addrinfo_next->ai_socktype,
807
con->addrinfo_next->ai_protocol);
808
if (con->fd == -1)
809
{
810
drizzle_set_error(con->drizzle, "drizzle_state_connect", "socket:%d",
811
errno);
812
con->drizzle->last_errno= errno;
813
return DRIZZLE_RETURN_ERRNO;
814
}
815
816
dret= _con_setsockopt(con);
817
if (dret != DRIZZLE_RETURN_OK)
818
{
819
con->drizzle->last_errno= errno;
820
return dret;
821
}
822
823
while (1)
824
{
825
ret= connect(con->fd, con->addrinfo_next->ai_addr,
826
con->addrinfo_next->ai_addrlen);
827
828
#ifdef _WIN32
829
/*Mapping windows specific error codes to Posix*/
830
errno = WSAGetLastError();
831
switch(errno) {
832
case WSAEINVAL:
833
case WSAEALREADY:
834
case WSAEWOULDBLOCK:
835
errno = EINPROGRESS;
836
break;
837
default:
838
break;
839
}
840
#endif /* _WIN32 */
841
842
drizzle_log_crazy(con->drizzle, "connect return=%d errno=%d", ret, errno);
843
844
if (ret == 0)
845
{
846
con->addrinfo_next= NULL;
847
break;
848
}
849
850
if (errno == EAGAIN || errno == EINTR)
851
continue;
852
853
if (errno == EINPROGRESS)
854
{
855
drizzle_state_pop(con);
856
drizzle_state_push(con, drizzle_state_connecting);
857
return DRIZZLE_RETURN_OK;
858
}
859
860
if (errno == ECONNREFUSED || errno == ENETUNREACH || errno == ETIMEDOUT)
861
{
862
con->addrinfo_next= con->addrinfo_next->ai_next;
863
return DRIZZLE_RETURN_OK;
864
}
865
866
drizzle_set_error(con->drizzle, "drizzle_state_connect", "connect:%d",
867
errno);
868
con->drizzle->last_errno= errno;
869
return DRIZZLE_RETURN_ERRNO;
870
}
871
872
drizzle_state_pop(con);
873
return DRIZZLE_RETURN_OK;
874
}
875
876
drizzle_return_t drizzle_state_connecting(drizzle_con_st *con)
877
{
878
drizzle_return_t ret;
879
880
drizzle_log_debug(con->drizzle, "drizzle_state_connecting");
881
882
while (1)
883
{
884
if (con->revents & POLLOUT)
885
{
886
drizzle_state_pop(con);
887
return DRIZZLE_RETURN_OK;
888
}
889
else if (con->revents & (POLLERR | POLLHUP | POLLNVAL))
890
{
891
con->revents= 0;
892
drizzle_state_pop(con);
893
drizzle_state_push(con, drizzle_state_connect);
894
con->addrinfo_next= con->addrinfo_next->ai_next;
895
return DRIZZLE_RETURN_OK;
896
}
897
898
ret= drizzle_con_set_events(con, POLLOUT);
899
if (ret != DRIZZLE_RETURN_OK)
900
return ret;
901
902
if (con->drizzle->options & DRIZZLE_NON_BLOCKING)
903
return DRIZZLE_RETURN_IO_WAIT;
904
905
ret= drizzle_con_wait(con->drizzle);
906
if (ret != DRIZZLE_RETURN_OK)
907
return ret;
908
}
909
}
910
911
drizzle_return_t drizzle_state_read(drizzle_con_st *con)
912
{
913
drizzle_return_t ret;
914
ssize_t read_size;
915
916
drizzle_log_debug(con->drizzle, "drizzle_state_read");
917
918
if (con->buffer_size == 0)
919
con->buffer_ptr= con->buffer;
920
else if ((con->buffer_ptr - con->buffer) > (DRIZZLE_MAX_BUFFER_SIZE / 2))
921
{
922
memmove(con->buffer, con->buffer_ptr, con->buffer_size);
923
con->buffer_ptr= con->buffer;
924
}
925
926
while (1)
927
{
928
read_size = recv(con->fd, (char *)con->buffer_ptr + con->buffer_size,
929
(size_t)DRIZZLE_MAX_BUFFER_SIZE -
930
((size_t)(con->buffer_ptr - con->buffer) +
931
con->buffer_size),0);
932
#ifdef _WIN32
933
/*Get windows error codes and map it to Posix*/
934
errno = WSAGetLastError();
935
switch(errno) {
936
case WSAEWOULDBLOCK:
937
case 10057:
938
errno = EAGAIN;
939
break;
940
default:
941
break;
942
}
943
#endif /* _WIN32 */
944
drizzle_log_crazy(con->drizzle, "read fd=%d return=%zd errno=%d", con->fd,
945
read_size, errno);
946
947
if (read_size == 0)
948
{
949
drizzle_set_error(con->drizzle, "drizzle_state_read",
950
"lost connection to server (EOF)");
951
return DRIZZLE_RETURN_LOST_CONNECTION;
952
}
953
else if (read_size == -1)
954
{
955
if (errno == EAGAIN)
956
{
957
ret= drizzle_con_set_events(con, POLLIN);
958
if (ret != DRIZZLE_RETURN_OK)
959
return 0;
960
961
if (con->drizzle->options & DRIZZLE_NON_BLOCKING)
962
return DRIZZLE_RETURN_IO_WAIT;
963
964
ret= drizzle_con_wait(con->drizzle);
965
if (ret != DRIZZLE_RETURN_OK)
966
return ret;
967
968
continue;
969
}
970
else if (errno == ECONNREFUSED)
971
{
972
con->revents= 0;
973
drizzle_state_pop(con);
974
drizzle_state_push(con, drizzle_state_connect);
975
con->addrinfo_next= con->addrinfo_next->ai_next;
976
return DRIZZLE_RETURN_OK;
977
}
978
else if (errno == EINTR)
979
continue;
980
else if (errno == EPIPE || errno == ECONNRESET)
981
{
982
drizzle_set_error(con->drizzle, "drizzle_state_read",
983
"lost connection to server (%d)", errno);
984
return DRIZZLE_RETURN_LOST_CONNECTION;
985
}
986
987
drizzle_set_error(con->drizzle, "drizzle_state_read", "read:%d", errno);
988
con->drizzle->last_errno= errno;
989
return DRIZZLE_RETURN_ERRNO;
990
}
991
992
con->buffer_size+= (size_t)read_size;
993
break;
994
}
995
996
drizzle_state_pop(con);;
997
return DRIZZLE_RETURN_OK;
998
}
999
1000
drizzle_return_t drizzle_state_write(drizzle_con_st *con)
1001
{
1002
drizzle_return_t ret;
1003
ssize_t write_size;
1004
1005
drizzle_log_debug(con->drizzle, "drizzle_state_write");
1006
1007
while (con->buffer_size != 0)
1008
{
1009
1010
write_size = send(con->fd,(char *) con->buffer_ptr, con->buffer_size,0);
1011
1012
drizzle_log_crazy(con->drizzle, "write fd=%d return=%zd errno=%d", con->fd,
1013
write_size, errno);
1014
1015
if (write_size == 0)
1016
{
1017
drizzle_set_error(con->drizzle, "drizzle_state_write",
1018
"lost connection to server (EOF)");
1019
return DRIZZLE_RETURN_LOST_CONNECTION;
1020
}
1021
else if (write_size == -1)
1022
{
1023
if (errno == EAGAIN)
1024
{
1025
ret= drizzle_con_set_events(con, POLLOUT);
1026
if (ret != DRIZZLE_RETURN_OK)
1027
return ret;
1028
1029
if (con->drizzle->options & DRIZZLE_NON_BLOCKING)
1030
return DRIZZLE_RETURN_IO_WAIT;
1031
1032
ret= drizzle_con_wait(con->drizzle);
1033
if (ret != DRIZZLE_RETURN_OK)
1034
return ret;
1035
1036
continue;
1037
}
1038
else if (errno == EINTR)
1039
continue;
1040
else if (errno == EPIPE || errno == ECONNRESET)
1041
{
1042
drizzle_set_error(con->drizzle, "drizzle_state_write",
1043
"lost connection to server (%d)", errno);
1044
return DRIZZLE_RETURN_LOST_CONNECTION;
1045
}
1046
1047
drizzle_set_error(con->drizzle, "drizzle_state_write", "write:%d", errno);
1048
con->drizzle->last_errno= errno;
1049
return DRIZZLE_RETURN_ERRNO;
1050
}
1051
1052
con->buffer_ptr+= write_size;
1053
con->buffer_size-= (size_t)write_size;
1054
if (con->buffer_size == 0)
1055
break;
1056
}
1057
1058
con->buffer_ptr= con->buffer;
1059
1060
drizzle_state_pop(con);
1061
return DRIZZLE_RETURN_OK;
1062
}
1063
1064
drizzle_return_t drizzle_state_listen(drizzle_con_st *con)
1065
{
1066
char host[NI_MAXHOST];
1067
char port[NI_MAXSERV];
1068
int ret;
1069
int fd;
1070
int opt;
1071
drizzle_con_st *new_con;
1072
1073
for (; con->addrinfo_next != NULL;
1074
con->addrinfo_next= con->addrinfo_next->ai_next)
1075
{
1076
ret= getnameinfo(con->addrinfo_next->ai_addr,
1077
con->addrinfo_next->ai_addrlen, host, NI_MAXHOST, port,
1078
NI_MAXSERV, NI_NUMERICHOST | NI_NUMERICSERV);
1079
if (ret != 0)
1080
{
1081
drizzle_set_error(con->drizzle, "drizzle_state_listen", "getnameinfo:%s",
1082
gai_strerror(ret));
1083
return DRIZZLE_RETURN_GETADDRINFO;
1084
}
1085
1086
/* Call to socket() can fail for some getaddrinfo results, try another. */
1087
fd= socket(con->addrinfo_next->ai_family, con->addrinfo_next->ai_socktype,
1088
con->addrinfo_next->ai_protocol);
1089
if (fd == -1)
1090
{
1091
drizzle_log_info(con->drizzle, "could not listen on %s:%s", host, port);
1092
drizzle_set_error(con->drizzle, "drizzle_state_listen", "socket:%d",
1093
errno);
1094
continue;
1095
}
1096
1097
opt= 1;
1098
#ifdef _WIN32
1099
ret= setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,(const char*) &opt, sizeof(opt));
1100
#else
1101
ret= setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
1102
#endif /* _WIN32 */
1103
if (ret == -1)
1104
{
1105
close(fd);
1106
drizzle_set_error(con->drizzle, "drizzle_state_listen", "setsockopt:%d",
1107
errno);
1108
return DRIZZLE_RETURN_ERRNO;
1109
}
1110
1111
ret= bind(fd, con->addrinfo_next->ai_addr, con->addrinfo_next->ai_addrlen);
1112
if (ret == -1)
1113
{
1114
close(fd);
1115
drizzle_set_error(con->drizzle, "drizzle_state_listen", "bind:%d", errno);
1116
if (errno == EADDRINUSE)
1117
{
1118
if (con->fd == -1)
1119
{
1120
drizzle_log_info(con->drizzle, "could not listen on %s:%s", host,
1121
port);
1122
}
1123
1124
continue;
1125
}
1126
1127
return DRIZZLE_RETURN_ERRNO;
1128
}
1129
1130
if (listen(fd, con->backlog) == -1)
1131
{
1132
close(fd);
1133
drizzle_set_error(con->drizzle, "drizzle_state_listen", "listen:%d",
1134
errno);
1135
return DRIZZLE_RETURN_ERRNO;
1136
}
1137
1138
if (con->fd == -1)
1139
{
1140
con->fd= fd;
1141
new_con= con;
1142
}
1143
else
1144
{
1145
new_con= drizzle_con_clone(con->drizzle, NULL, con);
1146
if (new_con == NULL)
1147
{
1148
close(fd);
1149
return DRIZZLE_RETURN_MEMORY;
1150
}
1151
1152
new_con->fd= fd;
1153
}
1154
1155
/* Wait for read events on the listening socket. */
1156
ret= drizzle_con_set_events(new_con, POLLIN);
1157
if (ret != DRIZZLE_RETURN_OK)
1158
{
1159
drizzle_con_free(new_con);
1160
return ret;
1161
}
1162
1163
drizzle_log_info(con->drizzle, "listening on %s:%s", host, port);
1164
}
1165
1166
/* Report last socket() error if we couldn't find an address to bind. */
1167
if (con->fd == -1)
1168
return DRIZZLE_RETURN_ERRNO;
1169
1170
drizzle_state_pop(con);
1171
return DRIZZLE_RETURN_OK;
1172
}
1173
1174
/*
1175
* Static Definitions
1176
*/
1177
1178
static drizzle_return_t _con_setsockopt(drizzle_con_st *con)
1179
{
1180
int ret;
1181
struct linger linger;
1182
struct timeval waittime;
1183
1184
ret= 1;
1185
1186
#ifdef _WIN32
1187
ret= setsockopt(con->fd, IPPROTO_TCP, TCP_NODELAY, (const char*)&ret,
1188
(socklen_t)sizeof(int));
1189
#else
1190
ret= setsockopt(con->fd, IPPROTO_TCP, TCP_NODELAY, &ret,
1191
(socklen_t)sizeof(int));
1192
#endif /* _WIN32 */
1193
1194
if (ret == -1 && errno != EOPNOTSUPP)
1195
{
1196
drizzle_set_error(con->drizzle, "_con_setsockopt",
1197
"setsockopt:TCP_NODELAY:%d", errno);
1198
return DRIZZLE_RETURN_ERRNO;
1199
}
1200
1201
linger.l_onoff= 1;
1202
linger.l_linger= DRIZZLE_DEFAULT_SOCKET_TIMEOUT;
1203
1204
#ifdef _WIN32
1205
ret= setsockopt(con->fd, SOL_SOCKET, SO_LINGER, (const char*)&linger,
1206
(socklen_t)sizeof(struct linger));
1207
#else
1208
ret= setsockopt(con->fd, SOL_SOCKET, SO_LINGER, &linger,
1209
(socklen_t)sizeof(struct linger));
1210
#endif /* _WIN32 */
1211
1212
if (ret == -1)
1213
{
1214
drizzle_set_error(con->drizzle, "_con_setsockopt",
1215
"setsockopt:SO_LINGER:%d", errno);
1216
return DRIZZLE_RETURN_ERRNO;
1217
}
1218
1219
waittime.tv_sec= DRIZZLE_DEFAULT_SOCKET_TIMEOUT;
1220
waittime.tv_usec= 0;
1221
1222
#ifdef _WIN32
1223
ret= setsockopt(con->fd, SOL_SOCKET, SO_SNDTIMEO, (const char*)&waittime,
1224
(socklen_t)sizeof(struct timeval));
1225
#else
1226
ret= setsockopt(con->fd, SOL_SOCKET, SO_SNDTIMEO, &waittime,
1227
(socklen_t)sizeof(struct timeval));
1228
#endif /* _WIN32 */
1229
1230
if (ret == -1 && errno != ENOPROTOOPT)
1231
{
1232
drizzle_set_error(con->drizzle, "_con_setsockopt",
1233
"setsockopt:SO_SNDTIMEO:%d", errno);
1234
return DRIZZLE_RETURN_ERRNO;
1235
}
1236
1237
#ifdef _WIN32
1238
ret= setsockopt(con->fd, SOL_SOCKET, SO_RCVTIMEO, (const char*)&waittime,
1239
(socklen_t)sizeof(struct timeval));
1240
#else
1241
ret= setsockopt(con->fd, SOL_SOCKET, SO_RCVTIMEO, &waittime,
1242
(socklen_t)sizeof(struct timeval));
1243
#endif /* _WIN32 */
1244
1245
if (ret == -1 && errno != ENOPROTOOPT)
1246
{
1247
drizzle_set_error(con->drizzle, "_con_setsockopt",
1248
"setsockopt:SO_RCVTIMEO:%d", errno);
1249
return DRIZZLE_RETURN_ERRNO;
1250
}
1251
1252
ret= DRIZZLE_DEFAULT_SOCKET_SEND_SIZE;
1253
#ifdef _WIN32
1254
ret= setsockopt(con->fd, SOL_SOCKET, SO_SNDBUF, (const char*)&ret, (socklen_t)sizeof(int));
1255
#else
1256
ret= setsockopt(con->fd, SOL_SOCKET, SO_SNDBUF, &ret, (socklen_t)sizeof(int));
1257
#endif /* _WIN32 */
1258
if (ret == -1)
1259
{
1260
drizzle_set_error(con->drizzle, "_con_setsockopt",
1261
"setsockopt:SO_SNDBUF:%d", errno);
1262
return DRIZZLE_RETURN_ERRNO;
1263
}
1264
1265
ret= DRIZZLE_DEFAULT_SOCKET_RECV_SIZE;
1266
#ifdef _WIN32
1267
ret= setsockopt(con->fd, SOL_SOCKET, SO_RCVBUF, (const char*)&ret, (socklen_t)sizeof(int));
1268
#else
1269
ret= setsockopt(con->fd, SOL_SOCKET, SO_RCVBUF, &ret, (socklen_t)sizeof(int));
1270
#endif /* _WIN32 */
1271
if (ret == -1)
1272
{
1273
drizzle_set_error(con->drizzle, "_con_setsockopt",
1274
"setsockopt:SO_RCVBUF:%d", errno);
1275
return DRIZZLE_RETURN_ERRNO;
1276
}
1277
1278
#if defined (_WIN32)
1279
unsigned long asyncmode = 1;
1280
ioctlsocket(con->fd, FIONBIO, &asyncmode);
1281
#else
1282
ret= fcntl(con->fd, F_GETFL, 0);
1283
if (ret == -1)
1284
{
1285
drizzle_set_error(con->drizzle, "_con_setsockopt", "fcntl:F_GETFL:%d",
1286
errno);
1287
return DRIZZLE_RETURN_ERRNO;
1288
}
1289
1290
ret= fcntl(con->fd, F_SETFL, ret | O_NONBLOCK);
1291
if (ret == -1)
1292
{
1293
drizzle_set_error(con->drizzle, "_con_setsockopt", "fcntl:F_SETFL:%d",
1294
errno);
1295
return DRIZZLE_RETURN_ERRNO;
1296
}
1297
#endif
1298
1299
return DRIZZLE_RETURN_OK;
1300
}
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Version: 2.0.1