Mercurial > hg > nginx
annotate src/core/ngx_inet.c @ 2198:5975975eedc0
ngx_sock_ntop() takes family from sockaddr, remove duplicate field
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Thu, 21 Aug 2008 19:24:07 +0000 |
| parents | 74477ea8074f |
| children | fd15c193572d |
| 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 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 |
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10 |
| 1647 | 11 /* AF_INET only */ |
| 12 | |
| 13 in_addr_t | |
| 14 ngx_inet_addr(u_char *text, size_t len) | |
| 15 { | |
| 16 u_char *p, c; | |
| 17 in_addr_t addr; | |
| 18 ngx_uint_t octet, n; | |
| 19 | |
| 20 addr = 0; | |
| 21 octet = 0; | |
| 22 n = 0; | |
| 23 | |
| 24 for (p = text; p < text + len; p++) { | |
| 25 | |
| 26 c = *p; | |
| 27 | |
| 28 if (c >= '0' && c <= '9') { | |
| 29 octet = octet * 10 + (c - '0'); | |
| 30 continue; | |
| 31 } | |
| 32 | |
| 33 if (c == '.' && octet < 256) { | |
| 34 addr = (addr << 8) + octet; | |
| 35 octet = 0; | |
| 36 n++; | |
| 37 continue; | |
| 38 } | |
| 39 | |
| 40 return INADDR_NONE; | |
| 41 } | |
| 42 | |
| 43 if (n != 3) { | |
| 44 return INADDR_NONE; | |
| 45 } | |
| 46 | |
| 47 if (octet < 256) { | |
| 48 addr = (addr << 8) + octet; | |
| 49 return htonl(addr); | |
| 50 } | |
| 51 | |
| 52 return INADDR_NONE; | |
| 53 } | |
| 54 | |
| 55 | |
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56 /* AF_INET only */ |
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57 |
| 509 | 58 size_t |
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2198
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59 ngx_sock_ntop(struct sockaddr *sa, u_char *text, size_t len) |
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57
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60 { |
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61 u_char *p; |
| 479 | 62 struct sockaddr_in *sin; |
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57
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63 |
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2198
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64 if (sa->sa_family == AF_INET) { |
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65 |
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66 sin = (struct sockaddr_in *) sa; |
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67 p = (u_char *) &sin->sin_addr; |
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68 |
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69 return ngx_snprintf(text, len, "%ud.%ud.%ud.%ud", |
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70 p[0], p[1], p[2], p[3]) |
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71 - text; |
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72 } |
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73 |
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74 return 0; |
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75 } |
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76 |
| 1830 | 77 |
| 509 | 78 size_t |
| 79 ngx_inet_ntop(int family, void *addr, u_char *text, size_t len) | |
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80 { |
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81 u_char *p; |
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82 |
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83 if (family == AF_INET) { |
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84 |
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85 p = (u_char *) addr; |
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86 |
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87 return ngx_snprintf(text, len, "%ud.%ud.%ud.%ud", |
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88 p[0], p[1], p[2], p[3]) |
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89 - text; |
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90 } |
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91 |
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92 return 0; |
| 1830 | 93 } |
| 94 | |
| 95 | |
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96 /* AF_INET only */ |
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97 |
| 509 | 98 ngx_int_t |
| 99 ngx_ptocidr(ngx_str_t *text, void *cidr) | |
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100 { |
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101 ngx_int_t m; |
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102 ngx_uint_t i; |
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103 ngx_inet_cidr_t *in_cidr; |
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104 |
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105 in_cidr = cidr; |
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106 |
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107 for (i = 0; i < text->len; i++) { |
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108 if (text->data[i] == '/') { |
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109 break; |
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110 } |
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111 } |
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112 |
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113 if (i == text->len) { |
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114 return NGX_ERROR; |
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115 } |
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116 |
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117 text->data[i] = '\0'; |
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118 in_cidr->addr = inet_addr((char *) text->data); |
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119 text->data[i] = '/'; |
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120 if (in_cidr->addr == INADDR_NONE) { |
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121 return NGX_ERROR; |
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122 } |
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123 |
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124 m = ngx_atoi(&text->data[i + 1], text->len - (i + 1)); |
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125 if (m == NGX_ERROR) { |
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126 return NGX_ERROR; |
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127 } |
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128 |
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129 if (m == 0) { |
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130 |
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131 /* the x86 compilers use the shl instruction that shifts by modulo 32 */ |
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132 |
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133 in_cidr->mask = 0; |
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134 return NGX_OK; |
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135 } |
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136 |
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137 in_cidr->mask = htonl((ngx_uint_t) (0 - (1 << (32 - m)))); |
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138 |
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139 if (in_cidr->addr == (in_cidr->addr & in_cidr->mask)) { |
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140 return NGX_OK; |
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141 } |
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142 |
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143 in_cidr->addr &= in_cidr->mask; |
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144 |
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145 return NGX_DONE; |
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146 } |
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147 |
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148 |
| 651 | 149 ngx_int_t |
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150 ngx_parse_url(ngx_pool_t *pool, ngx_url_t *u) |
| 651 | 151 { |
| 906 | 152 u_char *p, *host, *port_start; |
| 153 size_t len, port_len; | |
| 651 | 154 ngx_int_t port; |
| 155 ngx_uint_t i; | |
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156 struct hostent *h; |
| 651 | 157 #if (NGX_HAVE_UNIX_DOMAIN) |
| 158 struct sockaddr_un *saun; | |
| 159 #endif | |
| 160 | |
| 161 len = u->url.len; | |
| 162 p = u->url.data; | |
| 163 | |
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164 if (ngx_strncasecmp(p, (u_char *) "unix:", 5) == 0) { |
| 651 | 165 |
| 166 #if (NGX_HAVE_UNIX_DOMAIN) | |
| 167 | |
| 168 p += 5; | |
| 169 len -= 5; | |
| 170 | |
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171 u->uri.len = len; |
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172 u->uri.data = p; |
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173 |
| 651 | 174 if (u->uri_part) { |
| 175 for (i = 0; i < len; i++) { | |
| 176 | |
| 177 if (p[i] == ':') { | |
| 178 len = i; | |
| 179 | |
| 180 u->uri.len -= len + 1; | |
| 181 u->uri.data += len + 1; | |
| 182 | |
| 183 break; | |
| 184 } | |
| 185 } | |
| 186 } | |
| 187 | |
| 188 if (len == 0) { | |
| 189 u->err = "no path in the unix domain socket"; | |
| 190 return NGX_ERROR; | |
| 191 } | |
| 192 | |
| 193 if (len + 1 > sizeof(saun->sun_path)) { | |
| 194 u->err = "too long path in the unix domain socket"; | |
| 195 return NGX_ERROR; | |
| 196 } | |
| 197 | |
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198 u->addrs = ngx_pcalloc(pool, sizeof(ngx_peer_addr_t)); |
| 884 | 199 if (u->addrs == NULL) { |
| 651 | 200 return NGX_ERROR; |
| 201 } | |
| 202 | |
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203 saun = ngx_pcalloc(pool, sizeof(struct sockaddr_un)); |
| 651 | 204 if (saun == NULL) { |
| 205 return NGX_ERROR; | |
| 206 } | |
| 207 | |
| 884 | 208 u->naddrs = 1; |
| 651 | 209 |
| 210 saun->sun_family = AF_UNIX; | |
| 211 (void) ngx_cpystrn((u_char *) saun->sun_path, p, len + 1); | |
| 212 | |
| 884 | 213 u->addrs[0].sockaddr = (struct sockaddr *) saun; |
| 214 u->addrs[0].socklen = sizeof(struct sockaddr_un); | |
| 215 u->addrs[0].name.len = len + 5; | |
| 216 u->addrs[0].name.data = u->url.data; | |
| 651 | 217 |
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218 u->host.len = len; |
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219 u->host.data = p; |
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220 |
| 906 | 221 u->unix_socket = 1; |
| 651 | 222 |
| 223 return NGX_OK; | |
| 224 | |
| 225 #else | |
| 226 u->err = "the unix domain sockets are not supported on this platform"; | |
| 227 | |
| 228 return NGX_ERROR; | |
| 229 | |
| 230 #endif | |
| 231 } | |
| 232 | |
| 233 if ((p[0] == ':' || p[0] == '/') && !u->listen) { | |
| 234 u->err = "invalid host"; | |
| 235 return NGX_ERROR; | |
| 236 } | |
| 237 | |
| 238 u->host.data = p; | |
| 906 | 239 |
| 240 port_start = NULL; | |
| 241 port_len = 0; | |
| 651 | 242 |
| 243 for (i = 0; i < len; i++) { | |
| 244 | |
| 245 if (p[i] == ':') { | |
| 906 | 246 port_start = &p[i + 1]; |
| 651 | 247 u->host.len = i; |
| 248 | |
| 249 if (!u->uri_part) { | |
| 906 | 250 port_len = len - (i + 1); |
| 651 | 251 break; |
| 252 } | |
| 253 } | |
| 254 | |
| 255 if (p[i] == '/') { | |
| 256 u->uri.len = len - i; | |
| 257 u->uri.data = &p[i]; | |
| 258 | |
| 259 if (u->host.len == 0) { | |
| 260 u->host.len = i; | |
| 261 } | |
| 262 | |
| 906 | 263 if (port_start == NULL) { |
| 884 | 264 u->no_port = 1; |
| 265 goto no_port; | |
| 651 | 266 } |
| 267 | |
| 906 | 268 port_len = &p[i] - port_start; |
| 651 | 269 |
| 906 | 270 if (port_len == 0) { |
| 651 | 271 u->err = "invalid port"; |
| 272 return NGX_ERROR; | |
| 273 } | |
| 274 | |
| 275 break; | |
| 276 } | |
| 277 } | |
| 278 | |
| 906 | 279 if (port_start) { |
| 651 | 280 |
| 906 | 281 if (port_len == 0) { |
| 282 port_len = &p[i] - port_start; | |
| 651 | 283 |
| 906 | 284 if (port_len == 0) { |
| 651 | 285 u->err = "invalid port"; |
| 286 return NGX_ERROR; | |
| 287 } | |
| 288 } | |
| 289 | |
| 906 | 290 port = ngx_atoi(port_start, port_len); |
| 651 | 291 |
| 292 if (port == NGX_ERROR || port < 1 || port > 65536) { | |
| 293 u->err = "invalid port"; | |
| 294 return NGX_ERROR; | |
| 295 } | |
| 296 | |
|
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297 u->port_text.len = port_len; |
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298 u->port_text.data = port_start; |
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299 |
| 651 | 300 } else { |
| 301 port = ngx_atoi(p, len); | |
| 302 | |
| 303 if (port == NGX_ERROR) { | |
| 304 u->host.len = len; | |
| 884 | 305 u->no_port = 1; |
| 651 | 306 |
| 884 | 307 goto no_port; |
| 651 | 308 } |
| 309 | |
| 310 u->wildcard = 1; | |
| 311 } | |
| 312 | |
| 906 | 313 u->port = (in_port_t) port; |
| 651 | 314 |
| 884 | 315 no_port: |
| 651 | 316 |
| 317 if (u->listen) { | |
| 884 | 318 |
| 906 | 319 if (u->port == 0) { |
| 320 if (u->default_port == 0) { | |
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321 u->err = "no port"; |
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322 return NGX_ERROR; |
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323 } |
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324 |
| 906 | 325 u->port = u->default_port; |
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326 } |
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327 |
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328 if (u->host.len == 1 && u->host.data[0] == '*') { |
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329 u->host.len = 0; |
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330 } |
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331 |
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332 /* AF_INET only */ |
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333 |
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334 if (u->host.len) { |
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335 |
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336 host = ngx_alloc(u->host.len + 1, pool->log); |
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337 if (host == NULL) { |
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338 return NGX_ERROR; |
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339 } |
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340 |
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341 (void) ngx_cpystrn(host, u->host.data, u->host.len + 1); |
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342 |
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343 u->addr.in_addr = inet_addr((const char *) host); |
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344 |
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345 if (u->addr.in_addr == INADDR_NONE) { |
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346 h = gethostbyname((const char *) host); |
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347 |
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348 if (h == NULL || h->h_addr_list[0] == NULL) { |
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349 ngx_free(host); |
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350 u->err = "host not found"; |
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351 return NGX_ERROR; |
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352 } |
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353 |
| 906 | 354 u->addr.in_addr = *(in_addr_t *) (h->h_addr_list[0]); |
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355 } |
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356 |
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357 ngx_free(host); |
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358 |
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359 } else { |
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360 u->addr.in_addr = INADDR_ANY; |
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361 } |
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362 |
| 651 | 363 return NGX_OK; |
| 364 } | |
| 365 | |
| 366 if (u->host.len == 0) { | |
| 367 u->err = "no host"; | |
| 368 return NGX_ERROR; | |
| 369 } | |
| 370 | |
| 884 | 371 if (u->no_resolve) { |
| 372 return NGX_OK; | |
| 651 | 373 } |
| 374 | |
| 906 | 375 if (u->no_port) { |
| 376 u->port = u->default_port; | |
| 377 } | |
| 378 | |
| 379 if (u->port == 0) { | |
| 380 u->err = "no port"; | |
| 381 return NGX_ERROR; | |
| 382 } | |
| 383 | |
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384 if (ngx_inet_resolve_host(pool, u) != NGX_OK) { |
| 651 | 385 return NGX_ERROR; |
| 386 } | |
| 387 | |
| 388 return NGX_OK; | |
| 389 } | |
| 390 | |
| 391 | |
| 884 | 392 ngx_int_t |
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393 ngx_inet_resolve_host(ngx_pool_t *pool, ngx_url_t *u) |
| 651 | 394 { |
| 906 | 395 u_char *p, *host; |
| 651 | 396 size_t len; |
| 397 in_addr_t in_addr; | |
| 398 ngx_uint_t i; | |
| 399 struct hostent *h; | |
| 400 struct sockaddr_in *sin; | |
| 401 | |
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402 host = ngx_alloc(u->host.len + 1, pool->log); |
| 651 | 403 if (host == NULL) { |
| 884 | 404 return NGX_ERROR; |
| 651 | 405 } |
| 406 | |
| 884 | 407 (void) ngx_cpystrn(host, u->host.data, u->host.len + 1); |
| 651 | 408 |
| 409 /* AF_INET only */ | |
| 410 | |
| 411 in_addr = inet_addr((char *) host); | |
| 412 | |
| 413 if (in_addr == INADDR_NONE) { | |
| 414 h = gethostbyname((char *) host); | |
| 415 | |
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416 ngx_free(host); |
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|
417 |
| 651 | 418 if (h == NULL || h->h_addr_list[0] == NULL) { |
| 884 | 419 u->err = "host not found"; |
| 420 return NGX_ERROR; | |
| 651 | 421 } |
| 422 | |
| 884 | 423 if (u->one_addr == 0) { |
| 424 for (i = 0; h->h_addr_list[i] != NULL; i++) { /* void */ } | |
| 425 | |
| 426 } else { | |
| 427 i = 1; | |
| 428 } | |
| 651 | 429 |
| 430 /* MP: ngx_shared_palloc() */ | |
| 431 | |
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432 u->addrs = ngx_pcalloc(pool, i * sizeof(ngx_peer_addr_t)); |
| 884 | 433 if (u->addrs == NULL) { |
| 434 return NGX_ERROR; | |
| 651 | 435 } |
| 436 | |
| 884 | 437 u->naddrs = i; |
| 651 | 438 |
| 439 for (i = 0; h->h_addr_list[i] != NULL; i++) { | |
| 440 | |
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441 sin = ngx_pcalloc(pool, sizeof(struct sockaddr_in)); |
| 651 | 442 if (sin == NULL) { |
| 884 | 443 return NGX_ERROR; |
| 651 | 444 } |
| 445 | |
| 446 sin->sin_family = AF_INET; | |
| 906 | 447 sin->sin_port = htons(u->port); |
| 651 | 448 sin->sin_addr.s_addr = *(in_addr_t *) (h->h_addr_list[i]); |
| 449 | |
| 884 | 450 u->addrs[i].sockaddr = (struct sockaddr *) sin; |
| 451 u->addrs[i].socklen = sizeof(struct sockaddr_in); | |
| 651 | 452 |
|
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|
453 len = NGX_INET_ADDRSTRLEN + sizeof(":65536") - 1; |
| 651 | 454 |
| 2049 | 455 p = ngx_pnalloc(pool, len); |
| 906 | 456 if (p == NULL) { |
| 884 | 457 return NGX_ERROR; |
| 651 | 458 } |
| 459 | |
|
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|
460 len = ngx_sock_ntop((struct sockaddr *) sin, p, len); |
| 651 | 461 |
| 906 | 462 u->addrs[i].name.len = ngx_sprintf(&p[len], ":%d", u->port) - p; |
| 463 u->addrs[i].name.data = p; | |
| 651 | 464 } |
| 465 | |
| 466 } else { | |
| 467 | |
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|
468 ngx_free(host); |
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|
469 |
| 651 | 470 /* MP: ngx_shared_palloc() */ |
| 471 | |
|
1559
fe11e2a3946d
use pool instead of ngx_conf_t
Igor Sysoev <igor@sysoev.ru>
parents:
1380
diff
changeset
|
472 u->addrs = ngx_pcalloc(pool, sizeof(ngx_peer_addr_t)); |
| 884 | 473 if (u->addrs == NULL) { |
| 474 return NGX_ERROR; | |
| 651 | 475 } |
| 476 | |
|
1559
fe11e2a3946d
use pool instead of ngx_conf_t
Igor Sysoev <igor@sysoev.ru>
parents:
1380
diff
changeset
|
477 sin = ngx_pcalloc(pool, sizeof(struct sockaddr_in)); |
| 651 | 478 if (sin == NULL) { |
| 884 | 479 return NGX_ERROR; |
| 651 | 480 } |
| 481 | |
| 884 | 482 u->naddrs = 1; |
| 651 | 483 |
| 484 sin->sin_family = AF_INET; | |
| 906 | 485 sin->sin_port = htons(u->port); |
| 651 | 486 sin->sin_addr.s_addr = in_addr; |
| 487 | |
| 884 | 488 u->addrs[0].sockaddr = (struct sockaddr *) sin; |
| 489 u->addrs[0].socklen = sizeof(struct sockaddr_in); | |
| 651 | 490 |
| 2049 | 491 p = ngx_pnalloc(pool, u->host.len + sizeof(":65536") - 1); |
| 906 | 492 if (p == NULL) { |
| 884 | 493 return NGX_ERROR; |
| 651 | 494 } |
| 495 | |
| 906 | 496 u->addrs[0].name.len = ngx_sprintf(p, "%V:%d", &u->host, u->port) - p; |
| 497 u->addrs[0].name.data = p; | |
| 651 | 498 } |
| 499 | |
| 884 | 500 return NGX_OK; |
| 651 | 501 } |