Mercurial > hg > nginx-quic
annotate src/mail/ngx_mail.c @ 4515:8bb695c05870 stable-1.0
Merge of r4498:
Fix of rbtree lookup on hash collisions.
Previous code incorrectly assumed that nodes with identical keys are linked
together. This might not be true after tree rebalance.
Patch by Lanshun Zhou.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Mon, 05 Mar 2012 13:17:56 +0000 |
| parents | 4919fb357a5d |
| children |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 * Copyright (C) Nginx, Inc. |
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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> |
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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); |
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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 }, | |
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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, |
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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"), | |
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52 NULL, |
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53 NULL |
| 577 | 54 }; |
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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 */ | |
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61 NGX_CORE_MODULE, /* module type */ |
| 541 | 62 NULL, /* init master */ |
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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 | |
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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) |
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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 |
| 101 /* count the number of the http modules and set up their indices */ | |
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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 */ |
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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) { |
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129 return NGX_CONF_ERROR; |
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130 } |
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131 |
| 521 | 132 |
| 133 /* | |
| 134 * create the main_conf's, the null srv_conf's, and the null loc_conf's | |
| 1136 | 135 * of the all mail modules |
| 521 | 136 */ |
| 137 | |
| 138 for (m = 0; ngx_modules[m]; m++) { | |
| 1136 | 139 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
| 521 | 140 continue; |
| 141 } | |
| 142 | |
| 143 module = ngx_modules[m]->ctx; | |
| 144 mi = ngx_modules[m]->ctx_index; | |
| 145 | |
| 146 if (module->create_main_conf) { | |
| 147 ctx->main_conf[mi] = module->create_main_conf(cf); | |
| 148 if (ctx->main_conf[mi] == NULL) { | |
| 149 return NGX_CONF_ERROR; | |
| 150 } | |
| 151 } | |
| 152 | |
| 153 if (module->create_srv_conf) { | |
| 154 ctx->srv_conf[mi] = module->create_srv_conf(cf); | |
| 155 if (ctx->srv_conf[mi] == NULL) { | |
| 156 return NGX_CONF_ERROR; | |
| 157 } | |
| 158 } | |
| 159 } | |
| 160 | |
| 161 | |
| 1136 | 162 /* parse inside the mail{} block */ |
| 521 | 163 |
| 164 pcf = *cf; | |
| 165 cf->ctx = ctx; | |
| 166 | |
| 1136 | 167 cf->module_type = NGX_MAIL_MODULE; |
| 168 cf->cmd_type = NGX_MAIL_MAIN_CONF; | |
| 521 | 169 rv = ngx_conf_parse(cf, NULL); |
| 170 | |
| 171 if (rv != NGX_CONF_OK) { | |
| 172 *cf = pcf; | |
| 173 return rv; | |
| 174 } | |
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175 |
| 521 | 176 |
| 1136 | 177 /* init mail{} main_conf's, merge the server{}s' srv_conf's */ |
| 521 | 178 |
| 1136 | 179 cmcf = ctx->main_conf[ngx_mail_core_module.ctx_index]; |
| 521 | 180 cscfp = cmcf->servers.elts; |
| 181 | |
| 182 for (m = 0; ngx_modules[m]; m++) { | |
| 1136 | 183 if (ngx_modules[m]->type != NGX_MAIL_MODULE) { |
| 521 | 184 continue; |
| 185 } | |
| 186 | |
| 187 module = ngx_modules[m]->ctx; | |
| 188 mi = ngx_modules[m]->ctx_index; | |
| 189 | |
| 1136 | 190 /* init mail{} main_conf's */ |
| 521 | 191 |
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192 cf->ctx = ctx; |
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193 |
| 521 | 194 if (module->init_main_conf) { |
| 577 | 195 rv = module->init_main_conf(cf, ctx->main_conf[mi]); |
| 521 | 196 if (rv != NGX_CONF_OK) { |
| 197 *cf = pcf; | |
| 198 return rv; | |
| 199 } | |
| 200 } | |
| 201 | |
| 202 for (s = 0; s < cmcf->servers.nelts; s++) { | |
| 577 | 203 |
| 521 | 204 /* merge the server{}s' srv_conf's */ |
| 577 | 205 |
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206 cf->ctx = cscfp[s]->ctx; |
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207 |
| 521 | 208 if (module->merge_srv_conf) { |
| 209 rv = module->merge_srv_conf(cf, | |
| 210 ctx->srv_conf[mi], | |
| 211 cscfp[s]->ctx->srv_conf[mi]); | |
| 212 if (rv != NGX_CONF_OK) { | |
| 213 *cf = pcf; | |
| 214 return rv; | |
| 215 } | |
| 216 } | |
| 217 } | |
| 218 } | |
| 219 | |
| 577 | 220 *cf = pcf; |
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221 |
| 641 | 222 |
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223 if (ngx_array_init(&ports, cf->temp_pool, 4, sizeof(ngx_mail_conf_port_t)) |
| 641 | 224 != NGX_OK) |
| 225 { | |
| 226 return NGX_CONF_ERROR; | |
| 227 } | |
| 228 | |
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229 listen = cmcf->listen.elts; |
| 641 | 230 |
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231 for (i = 0; i < cmcf->listen.nelts; i++) { |
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232 if (ngx_mail_add_ports(cf, &ports, &listen[i]) != NGX_OK) { |
| 641 | 233 return NGX_CONF_ERROR; |
| 234 } | |
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235 } |
| 641 | 236 |
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237 return ngx_mail_optimize_servers(cf, &ports); |
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238 } |
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239 |
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240 |
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241 static ngx_int_t |
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242 ngx_mail_add_ports(ngx_conf_t *cf, ngx_array_t *ports, |
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243 ngx_mail_listen_t *listen) |
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244 { |
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245 in_port_t p; |
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246 ngx_uint_t i; |
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247 struct sockaddr *sa; |
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248 struct sockaddr_in *sin; |
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249 ngx_mail_conf_port_t *port; |
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250 ngx_mail_conf_addr_t *addr; |
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251 #if (NGX_HAVE_INET6) |
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252 struct sockaddr_in6 *sin6; |
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253 #endif |
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254 |
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255 sa = (struct sockaddr *) &listen->sockaddr; |
| 641 | 256 |
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257 switch (sa->sa_family) { |
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258 |
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259 #if (NGX_HAVE_INET6) |
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260 case AF_INET6: |
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261 sin6 = (struct sockaddr_in6 *) sa; |
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262 p = sin6->sin6_port; |
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263 break; |
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264 #endif |
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265 |
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266 default: /* AF_INET */ |
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267 sin = (struct sockaddr_in *) sa; |
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268 p = sin->sin_port; |
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269 break; |
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270 } |
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271 |
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272 port = ports->elts; |
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273 for (i = 0; i < ports->nelts; i++) { |
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274 if (p == port[i].port && sa->sa_family == port[i].family) { |
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275 |
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276 /* a port is already in the port list */ |
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277 |
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278 port = &port[i]; |
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279 goto found; |
| 641 | 280 } |
| 281 } | |
| 282 | |
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283 /* add a port to the port list */ |
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284 |
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285 port = ngx_array_push(ports); |
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286 if (port == NULL) { |
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287 return NGX_ERROR; |
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288 } |
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289 |
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290 port->family = sa->sa_family; |
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291 port->port = p; |
| 641 | 292 |
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293 if (ngx_array_init(&port->addrs, cf->temp_pool, 2, |
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294 sizeof(ngx_mail_conf_addr_t)) |
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295 != NGX_OK) |
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296 { |
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297 return NGX_ERROR; |
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298 } |
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299 |
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300 found: |
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301 |
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302 addr = ngx_array_push(&port->addrs); |
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303 if (addr == NULL) { |
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304 return NGX_ERROR; |
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305 } |
| 641 | 306 |
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307 addr->sockaddr = (struct sockaddr *) &listen->sockaddr; |
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308 addr->socklen = listen->socklen; |
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309 addr->ctx = listen->ctx; |
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310 addr->bind = listen->bind; |
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311 addr->wildcard = listen->wildcard; |
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312 #if (NGX_MAIL_SSL) |
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313 addr->ssl = listen->ssl; |
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314 #endif |
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315 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) |
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316 addr->ipv6only = listen->ipv6only; |
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317 #endif |
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318 |
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319 return NGX_OK; |
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320 } |
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321 |
| 641 | 322 |
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323 static char * |
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324 ngx_mail_optimize_servers(ngx_conf_t *cf, ngx_array_t *ports) |
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325 { |
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326 ngx_uint_t i, p, last, bind_wildcard; |
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327 ngx_listening_t *ls; |
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328 ngx_mail_port_t *mport; |
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329 ngx_mail_conf_port_t *port; |
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330 ngx_mail_conf_addr_t *addr; |
| 641 | 331 |
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332 port = ports->elts; |
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333 for (p = 0; p < ports->nelts; p++) { |
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334 |
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335 ngx_sort(port[p].addrs.elts, (size_t) port[p].addrs.nelts, |
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336 sizeof(ngx_mail_conf_addr_t), ngx_mail_cmp_conf_addrs); |
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337 |
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338 addr = port[p].addrs.elts; |
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339 last = port[p].addrs.nelts; |
| 641 | 340 |
| 341 /* | |
| 342 * if there is the binding to the "*:port" then we need to bind() | |
| 343 * to the "*:port" only and ignore the other bindings | |
| 344 */ | |
| 345 | |
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346 if (addr[last - 1].wildcard) { |
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347 addr[last - 1].bind = 1; |
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348 bind_wildcard = 1; |
| 641 | 349 |
| 350 } else { | |
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351 bind_wildcard = 0; |
| 641 | 352 } |
| 353 | |
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354 i = 0; |
| 641 | 355 |
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356 while (i < last) { |
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357 |
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358 if (bind_wildcard && !addr[i].bind) { |
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359 i++; |
| 641 | 360 continue; |
| 361 } | |
| 362 | |
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363 ls = ngx_create_listening(cf, addr[i].sockaddr, addr[i].socklen); |
| 641 | 364 if (ls == NULL) { |
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365 return NGX_CONF_ERROR; |
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366 } |
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367 |
| 641 | 368 ls->addr_ntop = 1; |
| 1136 | 369 ls->handler = ngx_mail_init_connection; |
| 641 | 370 ls->pool_size = 256; |
| 371 | |
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372 /* TODO: error_log directive */ |
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373 ls->logp = &cf->cycle->new_log; |
| 641 | 374 ls->log.data = &ls->addr_text; |
| 375 ls->log.handler = ngx_accept_log_error; | |
| 376 | |
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377 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY) |
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378 ls->ipv6only = addr[i].ipv6only; |
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379 #endif |
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380 |
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381 mport = ngx_palloc(cf->pool, sizeof(ngx_mail_port_t)); |
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382 if (mport == NULL) { |
| 641 | 383 return NGX_CONF_ERROR; |
| 384 } | |
| 385 | |
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386 ls->servers = mport; |
| 641 | 387 |
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388 if (i == last - 1) { |
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389 mport->naddrs = last; |
| 641 | 390 |
| 391 } else { | |
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392 mport->naddrs = 1; |
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393 i = 0; |
| 641 | 394 } |
| 395 | |
|
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396 switch (ls->sockaddr->sa_family) { |
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397 #if (NGX_HAVE_INET6) |
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398 case AF_INET6: |
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399 if (ngx_mail_add_addrs6(cf, mport, addr) != NGX_OK) { |
| 641 | 400 return NGX_CONF_ERROR; |
| 401 } | |
|
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402 break; |
| 2224 | 403 #endif |
|
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|
404 default: /* AF_INET */ |
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405 if (ngx_mail_add_addrs(cf, mport, addr) != NGX_OK) { |
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406 return NGX_CONF_ERROR; |
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407 } |
| 641 | 408 break; |
| 409 } | |
| 410 | |
|
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411 addr++; |
| 641 | 412 last--; |
| 413 } | |
| 414 } | |
| 415 | |
|
417
0526206251f6
nginx-0.0.10-2004-09-07-19:29:22 import
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416 return NGX_CONF_OK; |
|
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|
417 } |
| 641 | 418 |
| 419 | |
|
1956
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use ngx_int_t in ngx_sort() callback
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|
420 static ngx_int_t |
|
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421 ngx_mail_add_addrs(ngx_conf_t *cf, ngx_mail_port_t *mport, |
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422 ngx_mail_conf_addr_t *addr) |
| 641 | 423 { |
|
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424 u_char *p; |
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425 size_t len; |
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426 ngx_uint_t i; |
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427 ngx_mail_in_addr_t *addrs; |
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428 struct sockaddr_in *sin; |
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429 u_char buf[NGX_SOCKADDR_STRLEN]; |
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430 |
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431 mport->addrs = ngx_pcalloc(cf->pool, |
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432 mport->naddrs * sizeof(ngx_mail_in_addr_t)); |
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433 if (mport->addrs == NULL) { |
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434 return NGX_ERROR; |
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435 } |
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436 |
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437 addrs = mport->addrs; |
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438 |
|
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439 for (i = 0; i < mport->naddrs; i++) { |
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440 |
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441 sin = (struct sockaddr_in *) addr[i].sockaddr; |
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442 addrs[i].addr = sin->sin_addr.s_addr; |
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443 |
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444 addrs[i].conf.ctx = addr[i].ctx; |
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445 #if (NGX_MAIL_SSL) |
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446 addrs[i].conf.ssl = addr[i].ssl; |
|
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447 #endif |
|
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448 |
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449 len = ngx_sock_ntop(addr[i].sockaddr, buf, NGX_SOCKADDR_STRLEN, 1); |
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450 |
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451 p = ngx_pnalloc(cf->pool, len); |
|
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452 if (p == NULL) { |
|
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453 return NGX_ERROR; |
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454 } |
|
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|
455 |
|
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|
456 ngx_memcpy(p, buf, len); |
|
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|
457 |
|
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458 addrs[i].conf.addr_text.len = len; |
|
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459 addrs[i].conf.addr_text.data = p; |
|
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|
460 } |
|
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|
461 |
|
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|
462 return NGX_OK; |
|
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|
463 } |
|
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|
464 |
|
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|
465 |
|
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|
466 #if (NGX_HAVE_INET6) |
| 641 | 467 |
|
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|
468 static ngx_int_t |
|
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|
469 ngx_mail_add_addrs6(ngx_conf_t *cf, ngx_mail_port_t *mport, |
|
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470 ngx_mail_conf_addr_t *addr) |
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|
471 { |
|
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|
472 u_char *p; |
|
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|
473 size_t len; |
|
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|
474 ngx_uint_t i; |
|
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|
475 ngx_mail_in6_addr_t *addrs6; |
|
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|
476 struct sockaddr_in6 *sin6; |
|
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|
477 u_char buf[NGX_SOCKADDR_STRLEN]; |
|
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|
478 |
|
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|
479 mport->addrs = ngx_pcalloc(cf->pool, |
|
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480 mport->naddrs * sizeof(ngx_mail_in6_addr_t)); |
|
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|
481 if (mport->addrs == NULL) { |
|
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|
482 return NGX_ERROR; |
|
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|
483 } |
|
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|
484 |
|
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|
485 addrs6 = mport->addrs; |
|
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|
486 |
|
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|
487 for (i = 0; i < mport->naddrs; i++) { |
|
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|
488 |
|
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|
489 sin6 = (struct sockaddr_in6 *) addr[i].sockaddr; |
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490 addrs6[i].addr6 = sin6->sin6_addr; |
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|
491 |
|
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492 addrs6[i].conf.ctx = addr[i].ctx; |
|
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493 #if (NGX_MAIL_SSL) |
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494 addrs6[i].conf.ssl = addr[i].ssl; |
|
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|
495 #endif |
| 641 | 496 |
|
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497 len = ngx_sock_ntop(addr[i].sockaddr, buf, NGX_SOCKADDR_STRLEN, 1); |
|
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|
498 |
|
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|
499 p = ngx_pnalloc(cf->pool, len); |
|
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|
500 if (p == NULL) { |
|
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|
501 return NGX_ERROR; |
|
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|
502 } |
|
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|
503 |
|
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|
504 ngx_memcpy(p, buf, len); |
|
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|
505 |
|
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changeset
|
506 addrs6[i].conf.addr_text.len = len; |
|
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|
507 addrs6[i].conf.addr_text.data = p; |
|
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|
508 } |
|
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changeset
|
509 |
|
a96a8c916b0c
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changeset
|
510 return NGX_OK; |
|
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|
511 } |
|
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changeset
|
512 |
|
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|
513 #endif |
|
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changeset
|
514 |
|
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diff
changeset
|
515 |
|
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diff
changeset
|
516 static ngx_int_t |
|
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|
517 ngx_mail_cmp_conf_addrs(const void *one, const void *two) |
|
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|
518 { |
|
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diff
changeset
|
519 ngx_mail_conf_addr_t *first, *second; |
|
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changeset
|
520 |
|
a96a8c916b0c
mail proxy listen IPv6 support
Igor Sysoev <igor@sysoev.ru>
parents:
2806
diff
changeset
|
521 first = (ngx_mail_conf_addr_t *) one; |
|
a96a8c916b0c
mail proxy listen IPv6 support
Igor Sysoev <igor@sysoev.ru>
parents:
2806
diff
changeset
|
522 second = (ngx_mail_conf_addr_t *) two; |
|
a96a8c916b0c
mail proxy listen IPv6 support
Igor Sysoev <igor@sysoev.ru>
parents:
2806
diff
changeset
|
523 |
|
a96a8c916b0c
mail proxy listen IPv6 support
Igor Sysoev <igor@sysoev.ru>
parents:
2806
diff
changeset
|
524 if (first->wildcard) { |
|
a96a8c916b0c
mail proxy listen IPv6 support
Igor Sysoev <igor@sysoev.ru>
parents:
2806
diff
changeset
|
525 /* a wildcard must be the last resort, shift it to the end */ |
| 641 | 526 return 1; |
| 527 } | |
| 528 | |
| 529 if (first->bind && !second->bind) { | |
| 530 /* shift explicit bind()ed addresses to the start */ | |
| 531 return -1; | |
| 532 } | |
| 533 | |
| 534 if (!first->bind && second->bind) { | |
| 535 /* shift explicit bind()ed addresses to the start */ | |
| 536 return 1; | |
| 537 } | |
| 538 | |
| 539 /* do not sort by default */ | |
| 540 | |
| 541 return 0; | |
| 542 } |