Mercurial > hg > nginx-quic
annotate src/stream/ngx_stream.c @ 6186:db138b3b645e
Core: added support for writing to stdout.
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Tue, 16 Jun 2015 15:47:40 +0300 |
parents | 68c106e6fa0a |
children | 78c06e5e1d76 |
rev | line source |
---|---|
6115 | 1 |
2 /* | |
3 * Copyright (C) Roman Arutyunyan | |
4 * Copyright (C) Nginx, Inc. | |
5 */ | |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_event.h> | |
11 #include <ngx_stream.h> | |
12 | |
13 | |
14 static char *ngx_stream_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
15 static ngx_int_t ngx_stream_add_ports(ngx_conf_t *cf, ngx_array_t *ports, | |
16 ngx_stream_listen_t *listen); | |
17 static char *ngx_stream_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports); | |
18 static ngx_int_t ngx_stream_add_addrs(ngx_conf_t *cf, ngx_stream_port_t *stport, | |
19 ngx_stream_conf_addr_t *addr); | |
20 #if (NGX_HAVE_INET6) | |
21 static ngx_int_t ngx_stream_add_addrs6(ngx_conf_t *cf, | |
22 ngx_stream_port_t *stport, ngx_stream_conf_addr_t *addr); | |
23 #endif | |
24 static ngx_int_t ngx_stream_cmp_conf_addrs(const void *one, const void *two); | |
25 | |
26 | |
27 ngx_uint_t ngx_stream_max_module; | |
28 | |
29 | |
30 static ngx_command_t ngx_stream_commands[] = { | |
31 | |
32 { ngx_string("stream"), | |
33 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, | |
34 ngx_stream_block, | |
35 0, | |
36 0, | |
37 NULL }, | |
38 | |
39 ngx_null_command | |
40 }; | |
41 | |
42 | |
43 static ngx_core_module_t ngx_stream_module_ctx = { | |
44 ngx_string("stream"), | |
45 NULL, | |
46 NULL | |
47 }; | |
48 | |
49 | |
50 ngx_module_t ngx_stream_module = { | |
51 NGX_MODULE_V1, | |
52 &ngx_stream_module_ctx, /* module context */ | |
53 ngx_stream_commands, /* module directives */ | |
54 NGX_CORE_MODULE, /* module type */ | |
55 NULL, /* init master */ | |
56 NULL, /* init module */ | |
57 NULL, /* init process */ | |
58 NULL, /* init thread */ | |
59 NULL, /* exit thread */ | |
60 NULL, /* exit process */ | |
61 NULL, /* exit master */ | |
62 NGX_MODULE_V1_PADDING | |
63 }; | |
64 | |
65 | |
66 static char * | |
67 ngx_stream_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
68 { | |
69 char *rv; | |
70 ngx_uint_t i, m, mi, s; | |
71 ngx_conf_t pcf; | |
72 ngx_array_t ports; | |
73 ngx_stream_listen_t *listen; | |
74 ngx_stream_module_t *module; | |
75 ngx_stream_conf_ctx_t *ctx; | |
76 ngx_stream_core_srv_conf_t **cscfp; | |
77 ngx_stream_core_main_conf_t *cmcf; | |
78 | |
79 /* the main stream context */ | |
80 | |
81 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_stream_conf_ctx_t)); | |
82 if (ctx == NULL) { | |
83 return NGX_CONF_ERROR; | |
84 } | |
85 | |
86 *(ngx_stream_conf_ctx_t **) conf = ctx; | |
87 | |
88 /* count the number of the stream modules and set up their indices */ | |
89 | |
90 ngx_stream_max_module = 0; | |
91 for (m = 0; ngx_modules[m]; m++) { | |
92 if (ngx_modules[m]->type != NGX_STREAM_MODULE) { | |
93 continue; | |
94 } | |
95 | |
96 ngx_modules[m]->ctx_index = ngx_stream_max_module++; | |
97 } | |
98 | |
99 | |
100 /* the stream main_conf context, it's the same in the all stream contexts */ | |
101 | |
102 ctx->main_conf = ngx_pcalloc(cf->pool, | |
103 sizeof(void *) * ngx_stream_max_module); | |
104 if (ctx->main_conf == NULL) { | |
105 return NGX_CONF_ERROR; | |
106 } | |
107 | |
108 | |
109 /* | |
110 * the stream null srv_conf context, it is used to merge | |
111 * the server{}s' srv_conf's | |
112 */ | |
113 | |
114 ctx->srv_conf = ngx_pcalloc(cf->pool, | |
115 sizeof(void *) * ngx_stream_max_module); | |
116 if (ctx->srv_conf == NULL) { | |
117 return NGX_CONF_ERROR; | |
118 } | |
119 | |
120 | |
121 /* | |
122 * create the main_conf's and the null srv_conf's of the all stream modules | |
123 */ | |
124 | |
125 for (m = 0; ngx_modules[m]; m++) { | |
126 if (ngx_modules[m]->type != NGX_STREAM_MODULE) { | |
127 continue; | |
128 } | |
129 | |
130 module = ngx_modules[m]->ctx; | |
131 mi = ngx_modules[m]->ctx_index; | |
132 | |
133 if (module->create_main_conf) { | |
134 ctx->main_conf[mi] = module->create_main_conf(cf); | |
135 if (ctx->main_conf[mi] == NULL) { | |
136 return NGX_CONF_ERROR; | |
137 } | |
138 } | |
139 | |
140 if (module->create_srv_conf) { | |
141 ctx->srv_conf[mi] = module->create_srv_conf(cf); | |
142 if (ctx->srv_conf[mi] == NULL) { | |
143 return NGX_CONF_ERROR; | |
144 } | |
145 } | |
146 } | |
147 | |
148 | |
149 /* parse inside the stream{} block */ | |
150 | |
151 pcf = *cf; | |
152 cf->ctx = ctx; | |
153 | |
154 cf->module_type = NGX_STREAM_MODULE; | |
155 cf->cmd_type = NGX_STREAM_MAIN_CONF; | |
156 rv = ngx_conf_parse(cf, NULL); | |
157 | |
158 if (rv != NGX_CONF_OK) { | |
159 *cf = pcf; | |
160 return rv; | |
161 } | |
162 | |
163 | |
164 /* init stream{} main_conf's, merge the server{}s' srv_conf's */ | |
165 | |
166 cmcf = ctx->main_conf[ngx_stream_core_module.ctx_index]; | |
167 cscfp = cmcf->servers.elts; | |
168 | |
169 for (m = 0; ngx_modules[m]; m++) { | |
170 if (ngx_modules[m]->type != NGX_STREAM_MODULE) { | |
171 continue; | |
172 } | |
173 | |
174 module = ngx_modules[m]->ctx; | |
175 mi = ngx_modules[m]->ctx_index; | |
176 | |
177 /* init stream{} main_conf's */ | |
178 | |
179 cf->ctx = ctx; | |
180 | |
181 if (module->init_main_conf) { | |
182 rv = module->init_main_conf(cf, ctx->main_conf[mi]); | |
183 if (rv != NGX_CONF_OK) { | |
184 *cf = pcf; | |
185 return rv; | |
186 } | |
187 } | |
188 | |
189 for (s = 0; s < cmcf->servers.nelts; s++) { | |
190 | |
191 /* merge the server{}s' srv_conf's */ | |
192 | |
193 cf->ctx = cscfp[s]->ctx; | |
194 | |
195 if (module->merge_srv_conf) { | |
196 rv = module->merge_srv_conf(cf, | |
197 ctx->srv_conf[mi], | |
198 cscfp[s]->ctx->srv_conf[mi]); | |
199 if (rv != NGX_CONF_OK) { | |
200 *cf = pcf; | |
201 return rv; | |
202 } | |
203 } | |
204 } | |
205 } | |
206 | |
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207 for (m = 0; ngx_modules[m]; m++) { |
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208 if (ngx_modules[m]->type != NGX_STREAM_MODULE) { |
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209 continue; |
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210 } |
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211 |
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212 module = ngx_modules[m]->ctx; |
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213 |
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214 if (module->postconfiguration) { |
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215 if (module->postconfiguration(cf) != NGX_OK) { |
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216 return NGX_CONF_ERROR; |
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217 } |
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218 } |
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219 } |
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220 |
6115 | 221 *cf = pcf; |
222 | |
223 | |
224 if (ngx_array_init(&ports, cf->temp_pool, 4, sizeof(ngx_stream_conf_port_t)) | |
225 != NGX_OK) | |
226 { | |
227 return NGX_CONF_ERROR; | |
228 } | |
229 | |
230 listen = cmcf->listen.elts; | |
231 | |
232 for (i = 0; i < cmcf->listen.nelts; i++) { | |
233 if (ngx_stream_add_ports(cf, &ports, &listen[i]) != NGX_OK) { | |
234 return NGX_CONF_ERROR; | |
235 } | |
236 } | |
237 | |
238 return ngx_stream_optimize_servers(cf, &ports); | |
239 } | |
240 | |
241 | |
242 static ngx_int_t | |
243 ngx_stream_add_ports(ngx_conf_t *cf, ngx_array_t *ports, | |
244 ngx_stream_listen_t *listen) | |
245 { | |
246 in_port_t p; | |
247 ngx_uint_t i; | |
248 struct sockaddr *sa; | |
249 struct sockaddr_in *sin; | |
250 ngx_stream_conf_port_t *port; | |
251 ngx_stream_conf_addr_t *addr; | |
252 #if (NGX_HAVE_INET6) | |
253 struct sockaddr_in6 *sin6; | |
254 #endif | |
255 | |
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256 sa = &listen->u.sockaddr; |
6115 | 257 |
258 switch (sa->sa_family) { | |
259 | |
260 #if (NGX_HAVE_INET6) | |
261 case AF_INET6: | |
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262 sin6 = &listen->u.sockaddr_in6; |
6115 | 263 p = sin6->sin6_port; |
264 break; | |
265 #endif | |
266 | |
267 #if (NGX_HAVE_UNIX_DOMAIN) | |
268 case AF_UNIX: | |
269 p = 0; | |
270 break; | |
271 #endif | |
272 | |
273 default: /* AF_INET */ | |
6170
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274 sin = &listen->u.sockaddr_in; |
6115 | 275 p = sin->sin_port; |
276 break; | |
277 } | |
278 | |
279 port = ports->elts; | |
280 for (i = 0; i < ports->nelts; i++) { | |
281 if (p == port[i].port && sa->sa_family == port[i].family) { | |
282 | |
283 /* a port is already in the port list */ | |
284 | |
285 port = &port[i]; | |
286 goto found; | |
287 } | |
288 } | |
289 | |
290 /* add a port to the port list */ | |
291 | |
292 port = ngx_array_push(ports); | |
293 if (port == NULL) { | |
294 return NGX_ERROR; | |
295 } | |
296 | |
297 port->family = sa->sa_family; | |
298 port->port = p; | |
299 | |
300 if (ngx_array_init(&port->addrs, cf->temp_pool, 2, | |
301 sizeof(ngx_stream_conf_addr_t)) | |
302 != NGX_OK) | |
303 { | |
304 return NGX_ERROR; | |
305 } | |
306 | |
307 found: | |
308 | |
309 addr = ngx_array_push(&port->addrs); | |
310 if (addr == NULL) { | |
311 return NGX_ERROR; | |
312 } | |
313 | |
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314 addr->opt = *listen; |
6115 | 315 |
316 return NGX_OK; | |
317 } | |
318 | |
319 | |
320 static char * | |
321 ngx_stream_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports) | |
322 { | |
323 ngx_uint_t i, p, last, bind_wildcard; | |
324 ngx_listening_t *ls; | |
325 ngx_stream_port_t *stport; | |
326 ngx_stream_conf_port_t *port; | |
327 ngx_stream_conf_addr_t *addr; | |
328 ngx_stream_core_srv_conf_t *cscf; | |
329 | |
330 port = ports->elts; | |
331 for (p = 0; p < ports->nelts; p++) { | |
332 | |
333 ngx_sort(port[p].addrs.elts, (size_t) port[p].addrs.nelts, | |
334 sizeof(ngx_stream_conf_addr_t), ngx_stream_cmp_conf_addrs); | |
335 | |
336 addr = port[p].addrs.elts; | |
337 last = port[p].addrs.nelts; | |
338 | |
339 /* | |
340 * if there is the binding to the "*:port" then we need to bind() | |
341 * to the "*:port" only and ignore the other bindings | |
342 */ | |
343 | |
6170
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344 if (addr[last - 1].opt.wildcard) { |
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parents:
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345 addr[last - 1].opt.bind = 1; |
6115 | 346 bind_wildcard = 1; |
347 | |
348 } else { | |
349 bind_wildcard = 0; | |
350 } | |
351 | |
352 i = 0; | |
353 | |
354 while (i < last) { | |
355 | |
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356 if (bind_wildcard && !addr[i].opt.bind) { |
6115 | 357 i++; |
358 continue; | |
359 } | |
360 | |
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361 ls = ngx_create_listening(cf, &addr[i].opt.u.sockaddr, |
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362 addr[i].opt.socklen); |
6115 | 363 if (ls == NULL) { |
364 return NGX_CONF_ERROR; | |
365 } | |
366 | |
367 ls->addr_ntop = 1; | |
368 ls->handler = ngx_stream_init_connection; | |
369 ls->pool_size = 256; | |
370 | |
6170
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371 cscf = addr->opt.ctx->srv_conf[ngx_stream_core_module.ctx_index]; |
6129
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Core: the ngx_set_connection_log() macro.
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372 |
6115 | 373 ls->logp = cscf->error_log; |
374 ls->log.data = &ls->addr_text; | |
375 ls->log.handler = ngx_accept_log_error; | |
376 | |
6172 | 377 ls->backlog = addr[i].opt.backlog; |
378 | |
6170
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379 ls->keepalive = addr[i].opt.so_keepalive; |
6115 | 380 #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
6170
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381 ls->keepidle = addr[i].opt.tcp_keepidle; |
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parents:
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382 ls->keepintvl = addr[i].opt.tcp_keepintvl; |
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383 ls->keepcnt = addr[i].opt.tcp_keepcnt; |
6115 | 384 #endif |
385 | |
386 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) | |
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387 ls->ipv6only = addr[i].opt.ipv6only; |
6115 | 388 #endif |
389 | |
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Stream: fixed "reuseport" to actually work.
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390 #if (NGX_HAVE_REUSEPORT) |
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391 ls->reuseport = addr[i].opt.reuseport; |
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392 #endif |
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393 |
6115 | 394 stport = ngx_palloc(cf->pool, sizeof(ngx_stream_port_t)); |
395 if (stport == NULL) { | |
396 return NGX_CONF_ERROR; | |
397 } | |
398 | |
399 ls->servers = stport; | |
400 | |
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Simplified ngx_http_init_listening().
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401 stport->naddrs = i + 1; |
6115 | 402 |
403 switch (ls->sockaddr->sa_family) { | |
404 #if (NGX_HAVE_INET6) | |
405 case AF_INET6: | |
406 if (ngx_stream_add_addrs6(cf, stport, addr) != NGX_OK) { | |
407 return NGX_CONF_ERROR; | |
408 } | |
409 break; | |
410 #endif | |
411 default: /* AF_INET */ | |
412 if (ngx_stream_add_addrs(cf, stport, addr) != NGX_OK) { | |
413 return NGX_CONF_ERROR; | |
414 } | |
415 break; | |
416 } | |
417 | |
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The "reuseport" option of the "listen" directive.
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418 if (ngx_clone_listening(cf, ls) != NGX_OK) { |
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419 return NGX_CONF_ERROR; |
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420 } |
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421 |
6115 | 422 addr++; |
423 last--; | |
424 } | |
425 } | |
426 | |
427 return NGX_CONF_OK; | |
428 } | |
429 | |
430 | |
431 static ngx_int_t | |
432 ngx_stream_add_addrs(ngx_conf_t *cf, ngx_stream_port_t *stport, | |
433 ngx_stream_conf_addr_t *addr) | |
434 { | |
435 u_char *p; | |
436 size_t len; | |
437 ngx_uint_t i; | |
438 struct sockaddr_in *sin; | |
439 ngx_stream_in_addr_t *addrs; | |
440 u_char buf[NGX_SOCKADDR_STRLEN]; | |
441 | |
442 stport->addrs = ngx_pcalloc(cf->pool, | |
443 stport->naddrs * sizeof(ngx_stream_in_addr_t)); | |
444 if (stport->addrs == NULL) { | |
445 return NGX_ERROR; | |
446 } | |
447 | |
448 addrs = stport->addrs; | |
449 | |
450 for (i = 0; i < stport->naddrs; i++) { | |
451 | |
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452 sin = &addr[i].opt.u.sockaddr_in; |
6115 | 453 addrs[i].addr = sin->sin_addr.s_addr; |
454 | |
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455 addrs[i].conf.ctx = addr[i].opt.ctx; |
6115 | 456 #if (NGX_STREAM_SSL) |
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457 addrs[i].conf.ssl = addr[i].opt.ssl; |
6115 | 458 #endif |
459 | |
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460 len = ngx_sock_ntop(&addr[i].opt.u.sockaddr, addr[i].opt.socklen, buf, |
6115 | 461 NGX_SOCKADDR_STRLEN, 1); |
462 | |
463 p = ngx_pnalloc(cf->pool, len); | |
464 if (p == NULL) { | |
465 return NGX_ERROR; | |
466 } | |
467 | |
468 ngx_memcpy(p, buf, len); | |
469 | |
470 addrs[i].conf.addr_text.len = len; | |
471 addrs[i].conf.addr_text.data = p; | |
472 } | |
473 | |
474 return NGX_OK; | |
475 } | |
476 | |
477 | |
478 #if (NGX_HAVE_INET6) | |
479 | |
480 static ngx_int_t | |
481 ngx_stream_add_addrs6(ngx_conf_t *cf, ngx_stream_port_t *stport, | |
482 ngx_stream_conf_addr_t *addr) | |
483 { | |
484 u_char *p; | |
485 size_t len; | |
486 ngx_uint_t i; | |
487 struct sockaddr_in6 *sin6; | |
488 ngx_stream_in6_addr_t *addrs6; | |
489 u_char buf[NGX_SOCKADDR_STRLEN]; | |
490 | |
491 stport->addrs = ngx_pcalloc(cf->pool, | |
492 stport->naddrs * sizeof(ngx_stream_in6_addr_t)); | |
493 if (stport->addrs == NULL) { | |
494 return NGX_ERROR; | |
495 } | |
496 | |
497 addrs6 = stport->addrs; | |
498 | |
499 for (i = 0; i < stport->naddrs; i++) { | |
500 | |
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501 sin6 = &addr[i].opt.u.sockaddr_in6; |
6115 | 502 addrs6[i].addr6 = sin6->sin6_addr; |
503 | |
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504 addrs6[i].conf.ctx = addr[i].opt.ctx; |
6115 | 505 #if (NGX_STREAM_SSL) |
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506 addrs6[i].conf.ssl = addr[i].opt.ssl; |
6115 | 507 #endif |
508 | |
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509 len = ngx_sock_ntop(&addr[i].opt.u.sockaddr, addr[i].opt.socklen, buf, |
6115 | 510 NGX_SOCKADDR_STRLEN, 1); |
511 | |
512 p = ngx_pnalloc(cf->pool, len); | |
513 if (p == NULL) { | |
514 return NGX_ERROR; | |
515 } | |
516 | |
517 ngx_memcpy(p, buf, len); | |
518 | |
519 addrs6[i].conf.addr_text.len = len; | |
520 addrs6[i].conf.addr_text.data = p; | |
521 } | |
522 | |
523 return NGX_OK; | |
524 } | |
525 | |
526 #endif | |
527 | |
528 | |
529 static ngx_int_t | |
530 ngx_stream_cmp_conf_addrs(const void *one, const void *two) | |
531 { | |
532 ngx_stream_conf_addr_t *first, *second; | |
533 | |
534 first = (ngx_stream_conf_addr_t *) one; | |
535 second = (ngx_stream_conf_addr_t *) two; | |
536 | |
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537 if (first->opt.wildcard) { |
6115 | 538 /* a wildcard must be the last resort, shift it to the end */ |
539 return 1; | |
540 } | |
541 | |
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542 if (second->opt.wildcard) { |
6115 | 543 /* a wildcard must be the last resort, shift it to the end */ |
544 return -1; | |
545 } | |
546 | |
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547 if (first->opt.bind && !second->opt.bind) { |
6115 | 548 /* shift explicit bind()ed addresses to the start */ |
549 return -1; | |
550 } | |
551 | |
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552 if (!first->opt.bind && second->opt.bind) { |
6115 | 553 /* shift explicit bind()ed addresses to the start */ |
554 return 1; | |
555 } | |
556 | |
557 /* do not sort by default */ | |
558 | |
559 return 0; | |
560 } |