Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail.c @ 6755:e2f13011343e stable-1.10
HTTP/2: fixed the "http request count is zero" alert.
When the stream is terminated the HEADERS frame can still wait in the output
queue. This frame can't be removed and must be sent to the client anyway,
since HTTP/2 uses stateful compression for headers. So in order to postpone
closing and freeing memory of such stream the special close stream handler
is set to the write event. After the HEADERS frame is sent the write event
is called and the stream will be finally closed.
Some events like receiving a RST_STREAM can trigger the read handler of such
stream in closing state and cause unexpected processing that can result in
another attempt to finalize the request. To prevent it the read handler is
now set to ngx_http_empty_handler.
Thanks to Amazon.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Thu, 16 Jun 2016 20:55:11 +0300 |
parents | cf5e822cf470 |
children | c90cf79d0e1d |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_event.h> |
1136 | 11 #include <ngx_mail.h> |
417
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12 |
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13 |
1136 | 14 static char *ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
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15 static ngx_int_t ngx_mail_add_ports(ngx_conf_t *cf, ngx_array_t *ports, |
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16 ngx_mail_listen_t *listen); |
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17 static char *ngx_mail_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports); |
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18 static ngx_int_t ngx_mail_add_addrs(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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19 ngx_mail_conf_addr_t *addr); |
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20 #if (NGX_HAVE_INET6) |
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21 static ngx_int_t ngx_mail_add_addrs6(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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22 ngx_mail_conf_addr_t *addr); |
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23 #endif |
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24 static ngx_int_t ngx_mail_cmp_conf_addrs(const void *one, const void *two); |
413
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25 |
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26 |
1136 | 27 ngx_uint_t ngx_mail_max_module; |
521 | 28 |
29 | |
1136 | 30 static ngx_command_t ngx_mail_commands[] = { |
31 | |
32 { ngx_string("mail"), | |
33 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, | |
34 ngx_mail_block, | |
35 0, | |
36 0, | |
37 NULL }, | |
413
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38 |
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39 ngx_null_command |
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40 }; |
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41 |
577 | 42 |
1136 | 43 static ngx_core_module_t ngx_mail_module_ctx = { |
44 ngx_string("mail"), | |
413
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45 NULL, |
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46 NULL |
577 | 47 }; |
413
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48 |
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49 |
1136 | 50 ngx_module_t ngx_mail_module = { |
509 | 51 NGX_MODULE_V1, |
1136 | 52 &ngx_mail_module_ctx, /* module context */ |
53 ngx_mail_commands, /* module directives */ | |
413
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54 NGX_CORE_MODULE, /* module type */ |
541 | 55 NULL, /* init master */ |
413
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56 NULL, /* init module */ |
541 | 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 | |
413
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63 }; |
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64 |
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65 |
521 | 66 static char * |
1136 | 67 ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
417
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68 { |
521 | 69 char *rv; |
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70 ngx_uint_t i, m, mi, s; |
521 | 71 ngx_conf_t pcf; |
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72 ngx_array_t ports; |
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73 ngx_mail_listen_t *listen; |
1136 | 74 ngx_mail_module_t *module; |
75 ngx_mail_conf_ctx_t *ctx; | |
76 ngx_mail_core_srv_conf_t **cscfp; | |
77 ngx_mail_core_main_conf_t *cmcf; | |
521 | 78 |
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79 if (*(ngx_mail_conf_ctx_t **) conf) { |
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80 return "is duplicate"; |
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81 } |
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82 |
1136 | 83 /* the main mail context */ |
84 | |
85 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t)); | |
521 | 86 if (ctx == NULL) { |
87 return NGX_CONF_ERROR; | |
88 } | |
89 | |
1136 | 90 *(ngx_mail_conf_ctx_t **) conf = ctx; |
521 | 91 |
5978 | 92 /* count the number of the mail modules and set up their indices */ |
417
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93 |
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94 ngx_mail_max_module = ngx_count_modules(cf->cycle, NGX_MAIL_MODULE); |
521 | 95 |
96 | |
1136 | 97 /* the mail main_conf context, it is the same in the all mail contexts */ |
417
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98 |
521 | 99 ctx->main_conf = ngx_pcalloc(cf->pool, |
1136 | 100 sizeof(void *) * ngx_mail_max_module); |
521 | 101 if (ctx->main_conf == NULL) { |
102 return NGX_CONF_ERROR; | |
103 } | |
104 | |
105 | |
106 /* | |
1136 | 107 * the mail null srv_conf context, it is used to merge |
521 | 108 * the server{}s' srv_conf's |
109 */ | |
110 | |
1136 | 111 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module); |
521 | 112 if (ctx->srv_conf == NULL) { |
417
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113 return NGX_CONF_ERROR; |
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114 } |
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115 |
521 | 116 |
117 /* | |
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118 * create the main_conf's and the null srv_conf's of the all mail modules |
521 | 119 */ |
120 | |
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121 for (m = 0; cf->cycle->modules[m]; m++) { |
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122 if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { |
521 | 123 continue; |
124 } | |
125 | |
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126 module = cf->cycle->modules[m]->ctx; |
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127 mi = cf->cycle->modules[m]->ctx_index; |
521 | 128 |
129 if (module->create_main_conf) { | |
130 ctx->main_conf[mi] = module->create_main_conf(cf); | |
131 if (ctx->main_conf[mi] == NULL) { | |
132 return NGX_CONF_ERROR; | |
133 } | |
134 } | |
135 | |
136 if (module->create_srv_conf) { | |
137 ctx->srv_conf[mi] = module->create_srv_conf(cf); | |
138 if (ctx->srv_conf[mi] == NULL) { | |
139 return NGX_CONF_ERROR; | |
140 } | |
141 } | |
142 } | |
143 | |
144 | |
1136 | 145 /* parse inside the mail{} block */ |
521 | 146 |
147 pcf = *cf; | |
148 cf->ctx = ctx; | |
149 | |
1136 | 150 cf->module_type = NGX_MAIL_MODULE; |
151 cf->cmd_type = NGX_MAIL_MAIN_CONF; | |
521 | 152 rv = ngx_conf_parse(cf, NULL); |
153 | |
154 if (rv != NGX_CONF_OK) { | |
155 *cf = pcf; | |
156 return rv; | |
157 } | |
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158 |
521 | 159 |
1136 | 160 /* init mail{} main_conf's, merge the server{}s' srv_conf's */ |
521 | 161 |
1136 | 162 cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index]; |
521 | 163 cscfp = cmcf->servers.elts; |
164 | |
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165 for (m = 0; cf->cycle->modules[m]; m++) { |
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166 if (cf->cycle->modules[m]->type != NGX_MAIL_MODULE) { |
521 | 167 continue; |
168 } | |
169 | |
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170 module = cf->cycle->modules[m]->ctx; |
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171 mi = cf->cycle->modules[m]->ctx_index; |
521 | 172 |
1136 | 173 /* init mail{} main_conf's */ |
521 | 174 |
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175 cf->ctx = ctx; |
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176 |
521 | 177 if (module->init_main_conf) { |
577 | 178 rv = module->init_main_conf(cf, ctx->main_conf[mi]); |
521 | 179 if (rv != NGX_CONF_OK) { |
180 *cf = pcf; | |
181 return rv; | |
182 } | |
183 } | |
184 | |
185 for (s = 0; s < cmcf->servers.nelts; s++) { | |
577 | 186 |
521 | 187 /* merge the server{}s' srv_conf's */ |
577 | 188 |
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189 cf->ctx = cscfp[s]->ctx; |
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190 |
521 | 191 if (module->merge_srv_conf) { |
192 rv = module->merge_srv_conf(cf, | |
193 ctx->srv_conf[mi], | |
194 cscfp[s]->ctx->srv_conf[mi]); | |
195 if (rv != NGX_CONF_OK) { | |
196 *cf = pcf; | |
197 return rv; | |
198 } | |
199 } | |
200 } | |
201 } | |
202 | |
577 | 203 *cf = pcf; |
417
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204 |
641 | 205 |
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206 if (ngx_array_init(&ports, cf->temp_pool, 4, sizeof(ngx_mail_conf_port_t)) |
641 | 207 != NGX_OK) |
208 { | |
209 return NGX_CONF_ERROR; | |
210 } | |
211 | |
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212 listen = cmcf->listen.elts; |
641 | 213 |
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214 for (i = 0; i < cmcf->listen.nelts; i++) { |
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215 if (ngx_mail_add_ports(cf, &ports, &listen[i]) != NGX_OK) { |
641 | 216 return NGX_CONF_ERROR; |
217 } | |
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218 } |
641 | 219 |
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220 return ngx_mail_optimize_servers(cf, &ports); |
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221 } |
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222 |
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223 |
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224 static ngx_int_t |
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225 ngx_mail_add_ports(ngx_conf_t *cf, ngx_array_t *ports, |
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226 ngx_mail_listen_t *listen) |
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227 { |
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228 in_port_t p; |
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229 ngx_uint_t i; |
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230 struct sockaddr *sa; |
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231 struct sockaddr_in *sin; |
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232 ngx_mail_conf_port_t *port; |
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233 ngx_mail_conf_addr_t *addr; |
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234 #if (NGX_HAVE_INET6) |
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235 struct sockaddr_in6 *sin6; |
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236 #endif |
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237 |
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238 sa = &listen->u.sockaddr; |
641 | 239 |
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240 switch (sa->sa_family) { |
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241 |
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242 #if (NGX_HAVE_INET6) |
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243 case AF_INET6: |
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244 sin6 = &listen->u.sockaddr_in6; |
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245 p = sin6->sin6_port; |
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246 break; |
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247 #endif |
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248 |
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249 #if (NGX_HAVE_UNIX_DOMAIN) |
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250 case AF_UNIX: |
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251 p = 0; |
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252 break; |
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253 #endif |
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254 |
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255 default: /* AF_INET */ |
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256 sin = &listen->u.sockaddr_in; |
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257 p = sin->sin_port; |
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258 break; |
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259 } |
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260 |
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261 port = ports->elts; |
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262 for (i = 0; i < ports->nelts; i++) { |
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263 if (p == port[i].port && sa->sa_family == port[i].family) { |
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264 |
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265 /* a port is already in the port list */ |
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266 |
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267 port = &port[i]; |
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268 goto found; |
641 | 269 } |
270 } | |
271 | |
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272 /* add a port to the port list */ |
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273 |
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274 port = ngx_array_push(ports); |
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275 if (port == NULL) { |
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276 return NGX_ERROR; |
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277 } |
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278 |
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279 port->family = sa->sa_family; |
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280 port->port = p; |
641 | 281 |
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282 if (ngx_array_init(&port->addrs, cf->temp_pool, 2, |
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283 sizeof(ngx_mail_conf_addr_t)) |
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284 != NGX_OK) |
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285 { |
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286 return NGX_ERROR; |
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287 } |
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288 |
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289 found: |
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290 |
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291 addr = ngx_array_push(&port->addrs); |
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292 if (addr == NULL) { |
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293 return NGX_ERROR; |
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294 } |
641 | 295 |
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296 addr->opt = *listen; |
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297 |
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298 return NGX_OK; |
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299 } |
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300 |
641 | 301 |
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302 static char * |
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303 ngx_mail_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports) |
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304 { |
6130 | 305 ngx_uint_t i, p, last, bind_wildcard; |
306 ngx_listening_t *ls; | |
307 ngx_mail_port_t *mport; | |
308 ngx_mail_conf_port_t *port; | |
309 ngx_mail_conf_addr_t *addr; | |
310 ngx_mail_core_srv_conf_t *cscf; | |
641 | 311 |
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312 port = ports->elts; |
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313 for (p = 0; p < ports->nelts; p++) { |
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314 |
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315 ngx_sort(port[p].addrs.elts, (size_t) port[p].addrs.nelts, |
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316 sizeof(ngx_mail_conf_addr_t), ngx_mail_cmp_conf_addrs); |
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317 |
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318 addr = port[p].addrs.elts; |
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319 last = port[p].addrs.nelts; |
641 | 320 |
321 /* | |
322 * if there is the binding to the "*:port" then we need to bind() | |
323 * to the "*:port" only and ignore the other bindings | |
324 */ | |
325 | |
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326 if (addr[last - 1].opt.wildcard) { |
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327 addr[last - 1].opt.bind = 1; |
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328 bind_wildcard = 1; |
641 | 329 |
330 } else { | |
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331 bind_wildcard = 0; |
641 | 332 } |
333 | |
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334 i = 0; |
641 | 335 |
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336 while (i < last) { |
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337 |
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338 if (bind_wildcard && !addr[i].opt.bind) { |
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339 i++; |
641 | 340 continue; |
341 } | |
342 | |
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343 ls = ngx_create_listening(cf, &addr[i].opt.u.sockaddr, |
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344 addr[i].opt.socklen); |
641 | 345 if (ls == NULL) { |
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346 return NGX_CONF_ERROR; |
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347 } |
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348 |
641 | 349 ls->addr_ntop = 1; |
1136 | 350 ls->handler = ngx_mail_init_connection; |
641 | 351 ls->pool_size = 256; |
352 | |
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353 cscf = addr->opt.ctx->srv_conf[ngx_mail_core_module.ctx_index]; |
6130 | 354 |
355 ls->logp = cscf->error_log; | |
641 | 356 ls->log.data = &ls->addr_text; |
357 ls->log.handler = ngx_accept_log_error; | |
358 | |
6173 | 359 ls->backlog = addr[i].opt.backlog; |
360 | |
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361 ls->keepalive = addr[i].opt.so_keepalive; |
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362 #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
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363 ls->keepidle = addr[i].opt.tcp_keepidle; |
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364 ls->keepintvl = addr[i].opt.tcp_keepintvl; |
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365 ls->keepcnt = addr[i].opt.tcp_keepcnt; |
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366 #endif |
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367 |
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368 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) |
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369 ls->ipv6only = addr[i].opt.ipv6only; |
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370 #endif |
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371 |
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372 mport = ngx_palloc(cf->pool, sizeof(ngx_mail_port_t)); |
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373 if (mport == NULL) { |
641 | 374 return NGX_CONF_ERROR; |
375 } | |
376 | |
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377 ls->servers = mport; |
641 | 378 |
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379 mport->naddrs = i + 1; |
641 | 380 |
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381 switch (ls->sockaddr->sa_family) { |
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382 #if (NGX_HAVE_INET6) |
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383 case AF_INET6: |
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384 if (ngx_mail_add_addrs6(cf, mport, addr) != NGX_OK) { |
641 | 385 return NGX_CONF_ERROR; |
386 } | |
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387 break; |
2224 | 388 #endif |
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389 default: /* AF_INET */ |
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390 if (ngx_mail_add_addrs(cf, mport, addr) != NGX_OK) { |
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391 return NGX_CONF_ERROR; |
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392 } |
641 | 393 break; |
394 } | |
395 | |
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396 addr++; |
641 | 397 last--; |
398 } | |
399 } | |
400 | |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
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401 return NGX_CONF_OK; |
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402 } |
641 | 403 |
404 | |
1956
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405 static ngx_int_t |
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406 ngx_mail_add_addrs(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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407 ngx_mail_conf_addr_t *addr) |
641 | 408 { |
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409 u_char *p; |
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410 size_t len; |
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411 ngx_uint_t i; |
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412 ngx_mail_in_addr_t *addrs; |
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413 struct sockaddr_in *sin; |
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414 u_char buf[NGX_SOCKADDR_STRLEN]; |
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415 |
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416 mport->addrs = ngx_pcalloc(cf->pool, |
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417 mport->naddrs * sizeof(ngx_mail_in_addr_t)); |
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418 if (mport->addrs == NULL) { |
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419 return NGX_ERROR; |
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420 } |
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421 |
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422 addrs = mport->addrs; |
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423 |
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424 for (i = 0; i < mport->naddrs; i++) { |
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425 |
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426 sin = &addr[i].opt.u.sockaddr_in; |
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427 addrs[i].addr = sin->sin_addr.s_addr; |
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428 |
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429 addrs[i].conf.ctx = addr[i].opt.ctx; |
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430 #if (NGX_MAIL_SSL) |
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431 addrs[i].conf.ssl = addr[i].opt.ssl; |
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432 #endif |
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433 |
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434 len = ngx_sock_ntop(&addr[i].opt.u.sockaddr, addr[i].opt.socklen, buf, |
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435 NGX_SOCKADDR_STRLEN, 1); |
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436 |
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437 p = ngx_pnalloc(cf->pool, len); |
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438 if (p == NULL) { |
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439 return NGX_ERROR; |
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440 } |
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441 |
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442 ngx_memcpy(p, buf, len); |
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443 |
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444 addrs[i].conf.addr_text.len = len; |
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445 addrs[i].conf.addr_text.data = p; |
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446 } |
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447 |
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448 return NGX_OK; |
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449 } |
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450 |
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451 |
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452 #if (NGX_HAVE_INET6) |
641 | 453 |
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454 static ngx_int_t |
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455 ngx_mail_add_addrs6(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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456 ngx_mail_conf_addr_t *addr) |
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457 { |
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458 u_char *p; |
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459 size_t len; |
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460 ngx_uint_t i; |
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461 ngx_mail_in6_addr_t *addrs6; |
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462 struct sockaddr_in6 *sin6; |
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463 u_char buf[NGX_SOCKADDR_STRLEN]; |
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464 |
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465 mport->addrs = ngx_pcalloc(cf->pool, |
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466 mport->naddrs * sizeof(ngx_mail_in6_addr_t)); |
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467 if (mport->addrs == NULL) { |
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468 return NGX_ERROR; |
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469 } |
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470 |
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471 addrs6 = mport->addrs; |
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472 |
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473 for (i = 0; i < mport->naddrs; i++) { |
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474 |
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|
475 sin6 = &addr[i].opt.u.sockaddr_in6; |
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476 addrs6[i].addr6 = sin6->sin6_addr; |
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477 |
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478 addrs6[i].conf.ctx = addr[i].opt.ctx; |
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479 #if (NGX_MAIL_SSL) |
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480 addrs6[i].conf.ssl = addr[i].opt.ssl; |
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481 #endif |
641 | 482 |
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|
483 len = ngx_sock_ntop(&addr[i].opt.u.sockaddr, addr[i].opt.socklen, buf, |
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484 NGX_SOCKADDR_STRLEN, 1); |
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485 |
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486 p = ngx_pnalloc(cf->pool, len); |
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487 if (p == NULL) { |
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488 return NGX_ERROR; |
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489 } |
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490 |
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491 ngx_memcpy(p, buf, len); |
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492 |
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493 addrs6[i].conf.addr_text.len = len; |
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494 addrs6[i].conf.addr_text.data = p; |
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495 } |
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|
496 |
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497 return NGX_OK; |
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498 } |
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499 |
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500 #endif |
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501 |
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|
502 |
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503 static ngx_int_t |
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504 ngx_mail_cmp_conf_addrs(const void *one, const void *two) |
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505 { |
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506 ngx_mail_conf_addr_t *first, *second; |
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|
507 |
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508 first = (ngx_mail_conf_addr_t *) one; |
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509 second = (ngx_mail_conf_addr_t *) two; |
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|
510 |
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|
511 if (first->opt.wildcard) { |
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|
512 /* a wildcard must be the last resort, shift it to the end */ |
641 | 513 return 1; |
514 } | |
515 | |
6171
f61049c80458
Mail: embed ngx_mail_listen_t into ngx_mail_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6152
diff
changeset
|
516 if (second->opt.wildcard) { |
4817
d794e59800ef
Mail: fixed sorting of listen addresses (ticket #187).
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
517 /* a wildcard must be the last resort, shift it to the end */ |
d794e59800ef
Mail: fixed sorting of listen addresses (ticket #187).
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
518 return -1; |
d794e59800ef
Mail: fixed sorting of listen addresses (ticket #187).
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
519 } |
d794e59800ef
Mail: fixed sorting of listen addresses (ticket #187).
Ruslan Ermilov <ru@nginx.com>
parents:
4412
diff
changeset
|
520 |
6171
f61049c80458
Mail: embed ngx_mail_listen_t into ngx_mail_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6152
diff
changeset
|
521 if (first->opt.bind && !second->opt.bind) { |
641 | 522 /* shift explicit bind()ed addresses to the start */ |
523 return -1; | |
524 } | |
525 | |
6171
f61049c80458
Mail: embed ngx_mail_listen_t into ngx_mail_conf_addr_t.
Ruslan Ermilov <ru@nginx.com>
parents:
6152
diff
changeset
|
526 if (!first->opt.bind && second->opt.bind) { |
641 | 527 /* shift explicit bind()ed addresses to the start */ |
528 return 1; | |
529 } | |
530 | |
531 /* do not sort by default */ | |
532 | |
533 return 0; | |
534 } |