Mercurial > hg > nginx
annotate src/mail/ngx_mail_pop3_module.c @ 9038:a26897674420 quic
QUIC: fixed C4706 warnings with MSVC 2010.
The fix is to avoid assignments within conditional expression.
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Tue, 22 Nov 2022 18:05:34 +0400 |
parents | dc955d274130 |
children | 4538c1ffb0f8 |
rev | line source |
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521 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4412 | 4 * Copyright (C) Nginx, Inc. |
521 | 5 */ |
6 | |
7 | |
8 #include <ngx_config.h> | |
9 #include <ngx_core.h> | |
10 #include <ngx_event.h> | |
1136 | 11 #include <ngx_mail.h> |
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12 #include <ngx_mail_pop3_module.h> |
521 | 13 |
14 | |
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15 static void *ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf); |
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16 static char *ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, |
521 | 17 void *child); |
18 | |
19 | |
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20 static ngx_str_t ngx_mail_pop3_default_capabilities[] = { |
527 | 21 ngx_string("TOP"), |
22 ngx_string("USER"), | |
23 ngx_string("UIDL"), | |
24 ngx_null_string | |
25 }; | |
26 | |
27 | |
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28 static ngx_conf_bitmask_t ngx_mail_pop3_auth_methods[] = { |
1136 | 29 { ngx_string("plain"), NGX_MAIL_AUTH_PLAIN_ENABLED }, |
30 { ngx_string("apop"), NGX_MAIL_AUTH_APOP_ENABLED }, | |
31 { ngx_string("cram-md5"), NGX_MAIL_AUTH_CRAM_MD5_ENABLED }, | |
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32 { ngx_string("external"), NGX_MAIL_AUTH_EXTERNAL_ENABLED }, |
800 | 33 { ngx_null_string, 0 } |
34 }; | |
35 | |
36 | |
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37 static ngx_str_t ngx_mail_pop3_auth_methods_names[] = { |
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38 ngx_string("PLAIN"), |
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39 ngx_string("LOGIN"), |
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40 ngx_null_string, /* APOP */ |
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41 ngx_string("CRAM-MD5"), |
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42 ngx_string("EXTERNAL"), |
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43 ngx_null_string /* NONE */ |
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44 }; |
809 | 45 |
46 | |
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47 static ngx_mail_protocol_t ngx_mail_pop3_protocol = { |
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48 ngx_string("pop3"), |
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49 ngx_string("\x04pop3"), |
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50 { 110, 995, 0, 0 }, |
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51 NGX_MAIL_POP3_PROTOCOL, |
521 | 52 |
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53 ngx_mail_pop3_init_session, |
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54 ngx_mail_pop3_init_protocol, |
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55 ngx_mail_pop3_parse_command, |
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56 ngx_mail_pop3_auth_state, |
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57 |
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58 ngx_string("-ERR internal server error" CRLF), |
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59 ngx_string("-ERR SSL certificate error" CRLF), |
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60 ngx_string("-ERR No required SSL certificate" CRLF) |
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61 }; |
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62 |
587 | 63 |
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64 static ngx_command_t ngx_mail_pop3_commands[] = { |
521 | 65 |
527 | 66 { ngx_string("pop3_capabilities"), |
1136 | 67 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, |
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68 ngx_mail_capabilities, |
1136 | 69 NGX_MAIL_SRV_CONF_OFFSET, |
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70 offsetof(ngx_mail_pop3_srv_conf_t, capabilities), |
527 | 71 NULL }, |
72 | |
1136 | 73 { ngx_string("pop3_auth"), |
74 NGX_MAIL_MAIN_CONF|NGX_MAIL_SRV_CONF|NGX_CONF_1MORE, | |
800 | 75 ngx_conf_set_bitmask_slot, |
1136 | 76 NGX_MAIL_SRV_CONF_OFFSET, |
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77 offsetof(ngx_mail_pop3_srv_conf_t, auth_methods), |
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78 &ngx_mail_pop3_auth_methods }, |
800 | 79 |
521 | 80 ngx_null_command |
81 }; | |
82 | |
83 | |
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84 static ngx_mail_module_t ngx_mail_pop3_module_ctx = { |
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85 &ngx_mail_pop3_protocol, /* protocol */ |
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86 |
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87 NULL, /* create main configuration */ |
521 | 88 NULL, /* init main configuration */ |
89 | |
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90 ngx_mail_pop3_create_srv_conf, /* create server configuration */ |
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91 ngx_mail_pop3_merge_srv_conf /* merge server configuration */ |
521 | 92 }; |
93 | |
94 | |
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95 ngx_module_t ngx_mail_pop3_module = { |
521 | 96 NGX_MODULE_V1, |
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97 &ngx_mail_pop3_module_ctx, /* module context */ |
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98 ngx_mail_pop3_commands, /* module directives */ |
1136 | 99 NGX_MAIL_MODULE, /* module type */ |
541 | 100 NULL, /* init master */ |
521 | 101 NULL, /* init module */ |
541 | 102 NULL, /* init process */ |
103 NULL, /* init thread */ | |
104 NULL, /* exit thread */ | |
105 NULL, /* exit process */ | |
106 NULL, /* exit master */ | |
107 NGX_MODULE_V1_PADDING | |
521 | 108 }; |
109 | |
110 | |
111 static void * | |
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112 ngx_mail_pop3_create_srv_conf(ngx_conf_t *cf) |
577 | 113 { |
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114 ngx_mail_pop3_srv_conf_t *pscf; |
641 | 115 |
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116 pscf = ngx_pcalloc(cf->pool, sizeof(ngx_mail_pop3_srv_conf_t)); |
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117 if (pscf == NULL) { |
527 | 118 return NULL; |
521 | 119 } |
120 | |
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121 if (ngx_array_init(&pscf->capabilities, cf->pool, 4, sizeof(ngx_str_t)) |
1136 | 122 != NGX_OK) |
123 { | |
124 return NULL; | |
125 } | |
126 | |
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127 return pscf; |
521 | 128 } |
129 | |
130 | |
131 static char * | |
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132 ngx_mail_pop3_merge_srv_conf(ngx_conf_t *cf, void *parent, void *child) |
521 | 133 { |
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134 ngx_mail_pop3_srv_conf_t *prev = parent; |
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135 ngx_mail_pop3_srv_conf_t *conf = child; |
521 | 136 |
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137 u_char *p; |
1136 | 138 size_t size, stls_only_size; |
527 | 139 ngx_str_t *c, *d; |
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140 ngx_uint_t i, m; |
1136 | 141 |
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142 ngx_conf_merge_bitmask_value(conf->auth_methods, |
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143 prev->auth_methods, |
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144 (NGX_CONF_BITMASK_SET |
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145 |NGX_MAIL_AUTH_PLAIN_ENABLED)); |
800 | 146 |
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147 if (conf->auth_methods & NGX_MAIL_AUTH_PLAIN_ENABLED) { |
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148 conf->auth_methods |= NGX_MAIL_AUTH_LOGIN_ENABLED; |
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149 } |
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150 |
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151 if (conf->capabilities.nelts == 0) { |
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152 conf->capabilities = prev->capabilities; |
800 | 153 } |
154 | |
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155 if (conf->capabilities.nelts == 0) { |
527 | 156 |
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157 for (d = ngx_mail_pop3_default_capabilities; d->len; d++) { |
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158 c = ngx_array_push(&conf->capabilities); |
527 | 159 if (c == NULL) { |
160 return NGX_CONF_ERROR; | |
161 } | |
162 | |
163 *c = *d; | |
164 } | |
165 } | |
166 | |
167 size = sizeof("+OK Capability list follows" CRLF) - 1 | |
168 + sizeof("." CRLF) - 1; | |
169 | |
1136 | 170 stls_only_size = size + sizeof("STLS" CRLF) - 1; |
171 | |
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172 c = conf->capabilities.elts; |
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173 for (i = 0; i < conf->capabilities.nelts; i++) { |
527 | 174 size += c[i].len + sizeof(CRLF) - 1; |
1136 | 175 |
176 if (ngx_strcasecmp(c[i].data, (u_char *) "USER") == 0) { | |
177 continue; | |
178 } | |
179 | |
180 stls_only_size += c[i].len + sizeof(CRLF) - 1; | |
527 | 181 } |
182 | |
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183 size += sizeof("SASL") - 1 + sizeof(CRLF) - 1; |
809 | 184 |
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185 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
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186 m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; |
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187 m <<= 1, i++) |
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188 { |
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189 if (ngx_mail_pop3_auth_methods_names[i].len == 0) { |
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190 continue; |
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191 } |
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192 |
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193 if (m & conf->auth_methods) { |
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194 size += 1 + ngx_mail_pop3_auth_methods_names[i].len; |
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195 } |
809 | 196 } |
197 | |
2049 | 198 p = ngx_pnalloc(cf->pool, size); |
583 | 199 if (p == NULL) { |
527 | 200 return NGX_CONF_ERROR; |
201 } | |
202 | |
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203 conf->capability.len = size; |
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204 conf->capability.data = p; |
583 | 205 |
206 p = ngx_cpymem(p, "+OK Capability list follows" CRLF, | |
207 sizeof("+OK Capability list follows" CRLF) - 1); | |
527 | 208 |
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209 for (i = 0; i < conf->capabilities.nelts; i++) { |
583 | 210 p = ngx_cpymem(p, c[i].data, c[i].len); |
211 *p++ = CR; *p++ = LF; | |
527 | 212 } |
213 | |
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214 p = ngx_cpymem(p, "SASL", sizeof("SASL") - 1); |
809 | 215 |
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216 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
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217 m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; |
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218 m <<= 1, i++) |
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219 { |
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220 if (ngx_mail_pop3_auth_methods_names[i].len == 0) { |
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221 continue; |
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222 } |
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223 |
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224 if (m & conf->auth_methods) { |
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225 *p++ = ' '; |
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226 p = ngx_cpymem(p, ngx_mail_pop3_auth_methods_names[i].data, |
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227 ngx_mail_pop3_auth_methods_names[i].len); |
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228 } |
809 | 229 } |
230 | |
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231 *p++ = CR; *p++ = LF; |
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232 |
583 | 233 *p++ = '.'; *p++ = CR; *p = LF; |
234 | |
235 | |
236 size += sizeof("STLS" CRLF) - 1; | |
527 | 237 |
2049 | 238 p = ngx_pnalloc(cf->pool, size); |
583 | 239 if (p == NULL) { |
240 return NGX_CONF_ERROR; | |
241 } | |
242 | |
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243 conf->starttls_capability.len = size; |
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244 conf->starttls_capability.data = p; |
583 | 245 |
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246 p = ngx_cpymem(p, conf->capability.data, |
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247 conf->capability.len - (sizeof("." CRLF) - 1)); |
583 | 248 |
249 p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); | |
250 *p++ = '.'; *p++ = CR; *p = LF; | |
527 | 251 |
252 | |
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253 size = sizeof("+OK methods supported:" CRLF) - 1 |
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254 + sizeof("." CRLF) - 1; |
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255 |
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256 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
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257 m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; |
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258 m <<= 1, i++) |
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259 { |
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260 if (ngx_mail_pop3_auth_methods_names[i].len == 0) { |
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261 continue; |
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262 } |
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263 |
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264 if (m & conf->auth_methods) { |
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265 size += ngx_mail_pop3_auth_methods_names[i].len |
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266 + sizeof(CRLF) - 1; |
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267 } |
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268 } |
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269 |
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270 p = ngx_pnalloc(cf->pool, size); |
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271 if (p == NULL) { |
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272 return NGX_CONF_ERROR; |
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273 } |
809 | 274 |
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275 conf->auth_capability.data = p; |
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276 conf->auth_capability.len = size; |
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277 |
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278 p = ngx_cpymem(p, "+OK methods supported:" CRLF, |
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279 sizeof("+OK methods supported:" CRLF) - 1); |
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280 |
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281 for (m = NGX_MAIL_AUTH_PLAIN_ENABLED, i = 0; |
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282 m <= NGX_MAIL_AUTH_EXTERNAL_ENABLED; |
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283 m <<= 1, i++) |
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284 { |
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285 if (ngx_mail_pop3_auth_methods_names[i].len == 0) { |
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286 continue; |
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287 } |
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288 |
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289 if (m & conf->auth_methods) { |
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290 p = ngx_cpymem(p, ngx_mail_pop3_auth_methods_names[i].data, |
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291 ngx_mail_pop3_auth_methods_names[i].len); |
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292 *p++ = CR; *p++ = LF; |
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293 } |
809 | 294 } |
295 | |
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296 *p++ = '.'; *p++ = CR; *p = LF; |
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297 |
809 | 298 |
2049 | 299 p = ngx_pnalloc(cf->pool, stls_only_size); |
1136 | 300 if (p == NULL) { |
301 return NGX_CONF_ERROR; | |
302 } | |
303 | |
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304 conf->starttls_only_capability.len = stls_only_size; |
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305 conf->starttls_only_capability.data = p; |
1136 | 306 |
307 p = ngx_cpymem(p, "+OK Capability list follows" CRLF, | |
308 sizeof("+OK Capability list follows" CRLF) - 1); | |
309 | |
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310 for (i = 0; i < conf->capabilities.nelts; i++) { |
1136 | 311 if (ngx_strcasecmp(c[i].data, (u_char *) "USER") == 0) { |
312 continue; | |
313 } | |
314 | |
315 p = ngx_cpymem(p, c[i].data, c[i].len); | |
316 *p++ = CR; *p++ = LF; | |
317 } | |
318 | |
319 p = ngx_cpymem(p, "STLS" CRLF, sizeof("STLS" CRLF) - 1); | |
320 *p++ = '.'; *p++ = CR; *p = LF; | |
321 | |
521 | 322 return NGX_CONF_OK; |
323 } |