Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail.c @ 5999:4d8936b1fc32
Upstream keepalive: drop ready flag on EAGAIN from recv(MSG_PEEK).
Keeping the ready flag in this case might results in missing notification of
broken connection until nginx tried to use it again.
While there, stale comment about stale event was removed since this function
is also can be called directly.
author | Valentin Bartenev <vbart@nginx.com> |
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date | Tue, 03 Mar 2015 17:48:57 +0300 |
parents | eb4ba3800c31 |
children | fc99323a3d79 |
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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6 |
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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_string("imap"), |
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40 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS, |
1136 | 41 ngx_mail_block, |
413
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42 0, |
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43 0, |
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44 NULL }, |
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45 |
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46 ngx_null_command |
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47 }; |
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48 |
577 | 49 |
1136 | 50 static ngx_core_module_t ngx_mail_module_ctx = { |
51 ngx_string("mail"), | |
413
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52 NULL, |
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53 NULL |
577 | 54 }; |
413
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55 |
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56 |
1136 | 57 ngx_module_t ngx_mail_module = { |
509 | 58 NGX_MODULE_V1, |
1136 | 59 &ngx_mail_module_ctx, /* module context */ |
60 ngx_mail_commands, /* module directives */ | |
413
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61 NGX_CORE_MODULE, /* module type */ |
541 | 62 NULL, /* init master */ |
413
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63 NULL, /* init module */ |
541 | 64 NULL, /* init process */ |
65 NULL, /* init thread */ | |
66 NULL, /* exit thread */ | |
67 NULL, /* exit process */ | |
68 NULL, /* exit master */ | |
69 NGX_MODULE_V1_PADDING | |
413
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70 }; |
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71 |
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72 |
521 | 73 static char * |
1136 | 74 ngx_mail_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
417
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75 { |
521 | 76 char *rv; |
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77 ngx_uint_t i, m, mi, s; |
521 | 78 ngx_conf_t pcf; |
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79 ngx_array_t ports; |
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80 ngx_mail_listen_t *listen; |
1136 | 81 ngx_mail_module_t *module; |
82 ngx_mail_conf_ctx_t *ctx; | |
83 ngx_mail_core_srv_conf_t **cscfp; | |
84 ngx_mail_core_main_conf_t *cmcf; | |
521 | 85 |
1136 | 86 if (cmd->name.data[0] == 'i') { |
87 ngx_conf_log_error(NGX_LOG_WARN, cf, 0, | |
88 "the \"imap\" directive is deprecated, " | |
89 "use the \"mail\" directive instead"); | |
90 } | |
521 | 91 |
1136 | 92 /* the main mail context */ |
93 | |
94 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_mail_conf_ctx_t)); | |
521 | 95 if (ctx == NULL) { |
96 return NGX_CONF_ERROR; | |
97 } | |
98 | |
1136 | 99 *(ngx_mail_conf_ctx_t **) conf = ctx; |
521 | 100 |
5978 | 101 /* count the number of the mail modules and set up their indices */ |
417
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102 |
1136 | 103 ngx_mail_max_module = 0; |
521 | 104 for (m = 0; ngx_modules[m]; m++) { |
1136 | 105 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
521 | 106 continue; |
107 } | |
108 | |
1136 | 109 ngx_modules[m]->ctx_index = ngx_mail_max_module++; |
521 | 110 } |
111 | |
112 | |
1136 | 113 /* the mail main_conf context, it is the same in the all mail contexts */ |
417
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114 |
521 | 115 ctx->main_conf = ngx_pcalloc(cf->pool, |
1136 | 116 sizeof(void *) * ngx_mail_max_module); |
521 | 117 if (ctx->main_conf == NULL) { |
118 return NGX_CONF_ERROR; | |
119 } | |
120 | |
121 | |
122 /* | |
1136 | 123 * the mail null srv_conf context, it is used to merge |
521 | 124 * the server{}s' srv_conf's |
125 */ | |
126 | |
1136 | 127 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_mail_max_module); |
521 | 128 if (ctx->srv_conf == NULL) { |
417
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129 return NGX_CONF_ERROR; |
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130 } |
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131 |
521 | 132 |
133 /* | |
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134 * create the main_conf's and the null srv_conf's of the all mail modules |
521 | 135 */ |
136 | |
137 for (m = 0; ngx_modules[m]; m++) { | |
1136 | 138 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
521 | 139 continue; |
140 } | |
141 | |
142 module = ngx_modules[m]->ctx; | |
143 mi = ngx_modules[m]->ctx_index; | |
144 | |
145 if (module->create_main_conf) { | |
146 ctx->main_conf[mi] = module->create_main_conf(cf); | |
147 if (ctx->main_conf[mi] == NULL) { | |
148 return NGX_CONF_ERROR; | |
149 } | |
150 } | |
151 | |
152 if (module->create_srv_conf) { | |
153 ctx->srv_conf[mi] = module->create_srv_conf(cf); | |
154 if (ctx->srv_conf[mi] == NULL) { | |
155 return NGX_CONF_ERROR; | |
156 } | |
157 } | |
158 } | |
159 | |
160 | |
1136 | 161 /* parse inside the mail{} block */ |
521 | 162 |
163 pcf = *cf; | |
164 cf->ctx = ctx; | |
165 | |
1136 | 166 cf->module_type = NGX_MAIL_MODULE; |
167 cf->cmd_type = NGX_MAIL_MAIN_CONF; | |
521 | 168 rv = ngx_conf_parse(cf, NULL); |
169 | |
170 if (rv != NGX_CONF_OK) { | |
171 *cf = pcf; | |
172 return rv; | |
173 } | |
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174 |
521 | 175 |
1136 | 176 /* init mail{} main_conf's, merge the server{}s' srv_conf's */ |
521 | 177 |
1136 | 178 cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index]; |
521 | 179 cscfp = cmcf->servers.elts; |
180 | |
181 for (m = 0; ngx_modules[m]; m++) { | |
1136 | 182 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
521 | 183 continue; |
184 } | |
185 | |
186 module = ngx_modules[m]->ctx; | |
187 mi = ngx_modules[m]->ctx_index; | |
188 | |
1136 | 189 /* init mail{} main_conf's */ |
521 | 190 |
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191 cf->ctx = ctx; |
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192 |
521 | 193 if (module->init_main_conf) { |
577 | 194 rv = module->init_main_conf(cf, ctx->main_conf[mi]); |
521 | 195 if (rv != NGX_CONF_OK) { |
196 *cf = pcf; | |
197 return rv; | |
198 } | |
199 } | |
200 | |
201 for (s = 0; s < cmcf->servers.nelts; s++) { | |
577 | 202 |
521 | 203 /* merge the server{}s' srv_conf's */ |
577 | 204 |
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205 cf->ctx = cscfp[s]->ctx; |
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206 |
521 | 207 if (module->merge_srv_conf) { |
208 rv = module->merge_srv_conf(cf, | |
209 ctx->srv_conf[mi], | |
210 cscfp[s]->ctx->srv_conf[mi]); | |
211 if (rv != NGX_CONF_OK) { | |
212 *cf = pcf; | |
213 return rv; | |
214 } | |
215 } | |
216 } | |
217 } | |
218 | |
577 | 219 *cf = pcf; |
417
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220 |
641 | 221 |
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222 if (ngx_array_init(&ports, cf->temp_pool, 4, sizeof(ngx_mail_conf_port_t)) |
641 | 223 != NGX_OK) |
224 { | |
225 return NGX_CONF_ERROR; | |
226 } | |
227 | |
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228 listen = cmcf->listen.elts; |
641 | 229 |
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230 for (i = 0; i < cmcf->listen.nelts; i++) { |
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231 if (ngx_mail_add_ports(cf, &ports, &listen[i]) != NGX_OK) { |
641 | 232 return NGX_CONF_ERROR; |
233 } | |
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234 } |
641 | 235 |
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236 return ngx_mail_optimize_servers(cf, &ports); |
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237 } |
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238 |
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239 |
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240 static ngx_int_t |
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241 ngx_mail_add_ports(ngx_conf_t *cf, ngx_array_t *ports, |
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242 ngx_mail_listen_t *listen) |
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243 { |
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244 in_port_t p; |
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245 ngx_uint_t i; |
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246 struct sockaddr *sa; |
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247 struct sockaddr_in *sin; |
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248 ngx_mail_conf_port_t *port; |
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249 ngx_mail_conf_addr_t *addr; |
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250 #if (NGX_HAVE_INET6) |
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251 struct sockaddr_in6 *sin6; |
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252 #endif |
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253 |
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254 sa = (struct sockaddr *) &listen->sockaddr; |
641 | 255 |
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256 switch (sa->sa_family) { |
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257 |
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258 #if (NGX_HAVE_INET6) |
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259 case AF_INET6: |
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260 sin6 = (struct sockaddr_in6 *) sa; |
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261 p = sin6->sin6_port; |
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262 break; |
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263 #endif |
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264 |
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265 #if (NGX_HAVE_UNIX_DOMAIN) |
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266 case AF_UNIX: |
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267 p = 0; |
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268 break; |
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269 #endif |
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270 |
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271 default: /* AF_INET */ |
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272 sin = (struct sockaddr_in *) sa; |
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273 p = sin->sin_port; |
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274 break; |
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275 } |
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276 |
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277 port = ports->elts; |
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278 for (i = 0; i < ports->nelts; i++) { |
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279 if (p == port[i].port && sa->sa_family == port[i].family) { |
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280 |
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281 /* a port is already in the port list */ |
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282 |
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283 port = &port[i]; |
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284 goto found; |
641 | 285 } |
286 } | |
287 | |
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288 /* add a port to the port list */ |
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289 |
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290 port = ngx_array_push(ports); |
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291 if (port == NULL) { |
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292 return NGX_ERROR; |
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293 } |
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294 |
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295 port->family = sa->sa_family; |
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296 port->port = p; |
641 | 297 |
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298 if (ngx_array_init(&port->addrs, cf->temp_pool, 2, |
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299 sizeof(ngx_mail_conf_addr_t)) |
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300 != NGX_OK) |
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301 { |
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302 return NGX_ERROR; |
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303 } |
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304 |
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305 found: |
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306 |
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307 addr = ngx_array_push(&port->addrs); |
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308 if (addr == NULL) { |
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309 return NGX_ERROR; |
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310 } |
641 | 311 |
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312 addr->sockaddr = (struct sockaddr *) &listen->sockaddr; |
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313 addr->socklen = listen->socklen; |
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314 addr->ctx = listen->ctx; |
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315 addr->bind = listen->bind; |
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316 addr->wildcard = listen->wildcard; |
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317 addr->so_keepalive = listen->so_keepalive; |
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318 #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
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319 addr->tcp_keepidle = listen->tcp_keepidle; |
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320 addr->tcp_keepintvl = listen->tcp_keepintvl; |
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321 addr->tcp_keepcnt = listen->tcp_keepcnt; |
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322 #endif |
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323 #if (NGX_MAIL_SSL) |
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324 addr->ssl = listen->ssl; |
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325 #endif |
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326 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) |
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327 addr->ipv6only = listen->ipv6only; |
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328 #endif |
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329 |
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330 return NGX_OK; |
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331 } |
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332 |
641 | 333 |
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334 static char * |
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335 ngx_mail_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports) |
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336 { |
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337 ngx_uint_t i, p, last, bind_wildcard; |
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338 ngx_listening_t *ls; |
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339 ngx_mail_port_t *mport; |
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340 ngx_mail_conf_port_t *port; |
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341 ngx_mail_conf_addr_t *addr; |
641 | 342 |
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343 port = ports->elts; |
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344 for (p = 0; p < ports->nelts; p++) { |
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345 |
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346 ngx_sort(port[p].addrs.elts, (size_t) port[p].addrs.nelts, |
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347 sizeof(ngx_mail_conf_addr_t), ngx_mail_cmp_conf_addrs); |
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348 |
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349 addr = port[p].addrs.elts; |
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350 last = port[p].addrs.nelts; |
641 | 351 |
352 /* | |
353 * if there is the binding to the "*:port" then we need to bind() | |
354 * to the "*:port" only and ignore the other bindings | |
355 */ | |
356 | |
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357 if (addr[last - 1].wildcard) { |
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358 addr[last - 1].bind = 1; |
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359 bind_wildcard = 1; |
641 | 360 |
361 } else { | |
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362 bind_wildcard = 0; |
641 | 363 } |
364 | |
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365 i = 0; |
641 | 366 |
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367 while (i < last) { |
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368 |
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369 if (bind_wildcard && !addr[i].bind) { |
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370 i++; |
641 | 371 continue; |
372 } | |
373 | |
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374 ls = ngx_create_listening(cf, addr[i].sockaddr, addr[i].socklen); |
641 | 375 if (ls == NULL) { |
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376 return NGX_CONF_ERROR; |
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377 } |
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378 |
641 | 379 ls->addr_ntop = 1; |
1136 | 380 ls->handler = ngx_mail_init_connection; |
641 | 381 ls->pool_size = 256; |
382 | |
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383 /* TODO: error_log directive */ |
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384 ls->logp = &cf->cycle->new_log; |
641 | 385 ls->log.data = &ls->addr_text; |
386 ls->log.handler = ngx_accept_log_error; | |
387 | |
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388 ls->keepalive = addr[i].so_keepalive; |
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389 #if (NGX_HAVE_KEEPALIVE_TUNABLE) |
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390 ls->keepidle = addr[i].tcp_keepidle; |
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391 ls->keepintvl = addr[i].tcp_keepintvl; |
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392 ls->keepcnt = addr[i].tcp_keepcnt; |
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393 #endif |
c4513d4dd024
Added the "so_keepalive=" parameter to the "listen" directive.
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|
394 |
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395 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) |
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396 ls->ipv6only = addr[i].ipv6only; |
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397 #endif |
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398 |
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399 mport = ngx_palloc(cf->pool, sizeof(ngx_mail_port_t)); |
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400 if (mport == NULL) { |
641 | 401 return NGX_CONF_ERROR; |
402 } | |
403 | |
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404 ls->servers = mport; |
641 | 405 |
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406 if (i == last - 1) { |
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407 mport->naddrs = last; |
641 | 408 |
409 } else { | |
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410 mport->naddrs = 1; |
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411 i = 0; |
641 | 412 } |
413 | |
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414 switch (ls->sockaddr->sa_family) { |
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415 #if (NGX_HAVE_INET6) |
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416 case AF_INET6: |
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417 if (ngx_mail_add_addrs6(cf, mport, addr) != NGX_OK) { |
641 | 418 return NGX_CONF_ERROR; |
419 } | |
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420 break; |
2224 | 421 #endif |
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422 default: /* AF_INET */ |
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423 if (ngx_mail_add_addrs(cf, mport, addr) != NGX_OK) { |
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424 return NGX_CONF_ERROR; |
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425 } |
641 | 426 break; |
427 } | |
428 | |
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429 addr++; |
641 | 430 last--; |
431 } | |
432 } | |
433 | |
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
434 return NGX_CONF_OK; |
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
435 } |
641 | 436 |
437 | |
1956
cb8c0c8e0c27
use ngx_int_t in ngx_sort() callback
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
438 static ngx_int_t |
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439 ngx_mail_add_addrs(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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440 ngx_mail_conf_addr_t *addr) |
641 | 441 { |
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442 u_char *p; |
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443 size_t len; |
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444 ngx_uint_t i; |
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445 ngx_mail_in_addr_t *addrs; |
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446 struct sockaddr_in *sin; |
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447 u_char buf[NGX_SOCKADDR_STRLEN]; |
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448 |
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449 mport->addrs = ngx_pcalloc(cf->pool, |
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450 mport->naddrs * sizeof(ngx_mail_in_addr_t)); |
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451 if (mport->addrs == NULL) { |
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452 return NGX_ERROR; |
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453 } |
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|
454 |
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|
455 addrs = mport->addrs; |
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|
456 |
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|
457 for (i = 0; i < mport->naddrs; i++) { |
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|
458 |
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|
459 sin = (struct sockaddr_in *) addr[i].sockaddr; |
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460 addrs[i].addr = sin->sin_addr.s_addr; |
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|
461 |
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462 addrs[i].conf.ctx = addr[i].ctx; |
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463 #if (NGX_MAIL_SSL) |
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464 addrs[i].conf.ssl = addr[i].ssl; |
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465 #endif |
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|
466 |
5266 | 467 len = ngx_sock_ntop(addr[i].sockaddr, addr[i].socklen, buf, |
5263
05ba5bce31e0
Core: extended ngx_sock_ntop() with socklen parameter.
Vladimir Homutov <vl@nginx.com>
parents:
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diff
changeset
|
468 NGX_SOCKADDR_STRLEN, 1); |
2855
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|
469 |
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|
470 p = ngx_pnalloc(cf->pool, len); |
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|
471 if (p == NULL) { |
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|
472 return NGX_ERROR; |
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|
473 } |
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|
474 |
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|
475 ngx_memcpy(p, buf, len); |
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|
476 |
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|
477 addrs[i].conf.addr_text.len = len; |
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|
478 addrs[i].conf.addr_text.data = p; |
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|
479 } |
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|
480 |
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|
481 return NGX_OK; |
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parents:
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diff
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|
482 } |
a96a8c916b0c
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
483 |
a96a8c916b0c
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Igor Sysoev <igor@sysoev.ru>
parents:
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diff
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|
484 |
a96a8c916b0c
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|
485 #if (NGX_HAVE_INET6) |
641 | 486 |
2855
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|
487 static ngx_int_t |
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|
488 ngx_mail_add_addrs6(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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|
489 ngx_mail_conf_addr_t *addr) |
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|
490 { |
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changeset
|
491 u_char *p; |
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|
492 size_t len; |
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parents:
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diff
changeset
|
493 ngx_uint_t i; |
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|
494 ngx_mail_in6_addr_t *addrs6; |
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|
495 struct sockaddr_in6 *sin6; |
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|
496 u_char buf[NGX_SOCKADDR_STRLEN]; |
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changeset
|
497 |
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|
498 mport->addrs = ngx_pcalloc(cf->pool, |
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|
499 mport->naddrs * sizeof(ngx_mail_in6_addr_t)); |
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|
500 if (mport->addrs == NULL) { |
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parents:
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|
501 return NGX_ERROR; |
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parents:
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diff
changeset
|
502 } |
a96a8c916b0c
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parents:
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diff
changeset
|
503 |
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changeset
|
504 addrs6 = mport->addrs; |
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|
505 |
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diff
changeset
|
506 for (i = 0; i < mport->naddrs; i++) { |
a96a8c916b0c
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|
507 |
a96a8c916b0c
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diff
changeset
|
508 sin6 = (struct sockaddr_in6 *) addr[i].sockaddr; |
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|
509 addrs6[i].addr6 = sin6->sin6_addr; |
a96a8c916b0c
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changeset
|
510 |
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diff
changeset
|
511 addrs6[i].conf.ctx = addr[i].ctx; |
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|
512 #if (NGX_MAIL_SSL) |
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|
513 addrs6[i].conf.ssl = addr[i].ssl; |
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|
514 #endif |
641 | 515 |
5263
05ba5bce31e0
Core: extended ngx_sock_ntop() with socklen parameter.
Vladimir Homutov <vl@nginx.com>
parents:
4819
diff
changeset
|
516 len = ngx_sock_ntop(addr[i].sockaddr, addr[i].socklen, buf, |
05ba5bce31e0
Core: extended ngx_sock_ntop() with socklen parameter.
Vladimir Homutov <vl@nginx.com>
parents:
4819
diff
changeset
|
517 NGX_SOCKADDR_STRLEN, 1); |
2855
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|
518 |
a96a8c916b0c
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|
519 p = ngx_pnalloc(cf->pool, len); |
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|
520 if (p == NULL) { |
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|
521 return NGX_ERROR; |
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|
522 } |
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diff
changeset
|
523 |
a96a8c916b0c
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diff
changeset
|
524 ngx_memcpy(p, buf, len); |
a96a8c916b0c
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diff
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|
525 |
a96a8c916b0c
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parents:
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diff
changeset
|
526 addrs6[i].conf.addr_text.len = len; |
a96a8c916b0c
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|
527 addrs6[i].conf.addr_text.data = p; |
a96a8c916b0c
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parents:
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diff
changeset
|
528 } |
a96a8c916b0c
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diff
changeset
|
529 |
a96a8c916b0c
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Igor Sysoev <igor@sysoev.ru>
parents:
2806
diff
changeset
|
530 return NGX_OK; |
a96a8c916b0c
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Igor Sysoev <igor@sysoev.ru>
parents:
2806
diff
changeset
|
531 } |
a96a8c916b0c
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Igor Sysoev <igor@sysoev.ru>
parents:
2806
diff
changeset
|
532 |
a96a8c916b0c
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Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
533 #endif |
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534 |
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535 |
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536 static ngx_int_t |
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537 ngx_mail_cmp_conf_addrs(const void *one, const void *two) |
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538 { |
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539 ngx_mail_conf_addr_t *first, *second; |
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540 |
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541 first = (ngx_mail_conf_addr_t *) one; |
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542 second = (ngx_mail_conf_addr_t *) two; |
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543 |
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544 if (first->wildcard) { |
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545 /* a wildcard must be the last resort, shift it to the end */ |
641 | 546 return 1; |
547 } | |
548 | |
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549 if (second->wildcard) { |
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550 /* a wildcard must be the last resort, shift it to the end */ |
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551 return -1; |
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552 } |
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553 |
641 | 554 if (first->bind && !second->bind) { |
555 /* shift explicit bind()ed addresses to the start */ | |
556 return -1; | |
557 } | |
558 | |
559 if (!first->bind && second->bind) { | |
560 /* shift explicit bind()ed addresses to the start */ | |
561 return 1; | |
562 } | |
563 | |
564 /* do not sort by default */ | |
565 | |
566 return 0; | |
567 } |