Mercurial > hg > nginx
annotate src/core/ngx_inet.c @ 1830:cac010479ea0
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author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 04 Jan 2008 11:54:55 +0000 |
parents | 8075179cae21 |
children | 04b04e6d60f4 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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7 #include <ngx_config.h> |
100
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8 #include <ngx_core.h> |
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9 |
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10 |
1830 | 11 static size_t ngx_sprint_uchar(u_char *text, u_char c, size_t len); |
12 | |
13 | |
1647 | 14 /* AF_INET only */ |
15 | |
16 in_addr_t | |
17 ngx_inet_addr(u_char *text, size_t len) | |
18 { | |
19 u_char *p, c; | |
20 in_addr_t addr; | |
21 ngx_uint_t octet, n; | |
22 | |
23 addr = 0; | |
24 octet = 0; | |
25 n = 0; | |
26 | |
27 for (p = text; p < text + len; p++) { | |
28 | |
29 c = *p; | |
30 | |
31 if (c >= '0' && c <= '9') { | |
32 octet = octet * 10 + (c - '0'); | |
33 continue; | |
34 } | |
35 | |
36 if (c == '.' && octet < 256) { | |
37 addr = (addr << 8) + octet; | |
38 octet = 0; | |
39 n++; | |
40 continue; | |
41 } | |
42 | |
43 return INADDR_NONE; | |
44 } | |
45 | |
46 if (n != 3) { | |
47 return INADDR_NONE; | |
48 } | |
49 | |
50 if (octet < 256) { | |
51 addr = (addr << 8) + octet; | |
52 return htonl(addr); | |
53 } | |
54 | |
55 return INADDR_NONE; | |
56 } | |
57 | |
58 | |
461 | 59 /* |
60 * ngx_sock_ntop() and ngx_inet_ntop() may be implemented as | |
581 | 61 * "ngx_sprintf(text, "%ud.%ud.%ud.%ud", p[0], p[1], p[2], p[3])", however, |
62 * they had been implemented long before the ngx_sprintf() had appeared | |
461 | 63 * and they are faster by 1.5-2.5 times, so it is worth to keep them. |
64 * | |
65 * By the way, the implementation using ngx_sprintf() is faster by 2.5-3 times | |
479 | 66 * than using FreeBSD libc's snprintf(). |
461 | 67 */ |
68 | |
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69 /* AF_INET only */ |
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70 |
509 | 71 size_t |
72 ngx_sock_ntop(int family, struct sockaddr *sa, u_char *text, size_t len) | |
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73 { |
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74 u_char *p; |
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75 size_t n; |
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76 ngx_uint_t i; |
479 | 77 struct sockaddr_in *sin; |
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78 |
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79 if (len == 0) { |
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80 return 0; |
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81 } |
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82 |
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83 if (family != AF_INET) { |
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84 return 0; |
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85 } |
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86 |
479 | 87 sin = (struct sockaddr_in *) sa; |
88 p = (u_char *) &sin->sin_addr; | |
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89 |
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90 if (len > INET_ADDRSTRLEN) { |
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91 len = INET_ADDRSTRLEN; |
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92 } |
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93 |
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94 n = ngx_sprint_uchar(text, p[0], len); |
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95 |
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96 i = 1; |
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97 |
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98 do { |
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99 if (len == n) { |
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100 text[n - 1] = '\0'; |
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101 return n; |
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102 } |
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103 |
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104 text[n++] = '.'; |
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105 |
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106 if (len == n) { |
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107 text[n - 1] = '\0'; |
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108 return n; |
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109 } |
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110 |
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111 n += ngx_sprint_uchar(&text[n], p[i++], len - n); |
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112 |
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113 } while (i < 4); |
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114 |
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115 if (len == n) { |
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116 text[n] = '\0'; |
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117 return n; |
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118 } |
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119 |
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120 text[n] = '\0'; |
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121 |
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122 return n; |
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123 } |
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124 |
1830 | 125 |
509 | 126 size_t |
127 ngx_inet_ntop(int family, void *addr, u_char *text, size_t len) | |
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128 { |
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129 u_char *p; |
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130 size_t n; |
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131 ngx_uint_t i; |
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132 |
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133 if (len == 0) { |
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134 return 0; |
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135 } |
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136 |
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137 if (family != AF_INET) { |
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138 return 0; |
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139 } |
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140 |
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141 p = (u_char *) addr; |
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142 |
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143 if (len > INET_ADDRSTRLEN) { |
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144 len = INET_ADDRSTRLEN; |
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145 } |
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146 |
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147 n = ngx_sprint_uchar(text, p[0], len); |
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148 |
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149 i = 1; |
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150 |
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151 do { |
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152 if (len == n) { |
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153 text[n - 1] = '\0'; |
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154 return n; |
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155 } |
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156 |
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157 text[n++] = '.'; |
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158 |
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159 if (len == n) { |
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160 text[n - 1] = '\0'; |
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161 return n; |
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162 } |
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163 |
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164 n += ngx_sprint_uchar(&text[n], p[i++], len - n); |
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165 |
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|
166 } while (i < 4); |
117ccc7c4055
nginx-0.0.3-2004-03-16-16:35:20 import
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diff
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|
167 |
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parents:
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diff
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|
168 if (len == n) { |
117ccc7c4055
nginx-0.0.3-2004-03-16-16:35:20 import
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diff
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|
169 text[n] = '\0'; |
117ccc7c4055
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170 return n; |
117ccc7c4055
nginx-0.0.3-2004-03-16-16:35:20 import
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parents:
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diff
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|
171 } |
117ccc7c4055
nginx-0.0.3-2004-03-16-16:35:20 import
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parents:
290
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|
172 |
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parents:
290
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|
173 text[n] = '\0'; |
117ccc7c4055
nginx-0.0.3-2004-03-16-16:35:20 import
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parents:
290
diff
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|
174 |
117ccc7c4055
nginx-0.0.3-2004-03-16-16:35:20 import
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175 return n; |
26
53cb81681040
nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
176 } |
340
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
177 |
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diff
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|
178 |
1830 | 179 static size_t |
180 ngx_sprint_uchar(u_char *text, u_char c, size_t len) | |
181 { | |
182 size_t n; | |
183 ngx_uint_t c1, c2; | |
184 | |
185 n = 0; | |
186 | |
187 if (len == n) { | |
188 return n; | |
189 } | |
190 | |
191 c1 = c / 100; | |
192 | |
193 if (c1) { | |
194 *text++ = (u_char) (c1 + '0'); | |
195 n++; | |
196 | |
197 if (len == n) { | |
198 return n; | |
199 } | |
200 } | |
201 | |
202 c2 = (c % 100) / 10; | |
203 | |
204 if (c1 || c2) { | |
205 *text++ = (u_char) (c2 + '0'); | |
206 n++; | |
207 | |
208 if (len == n) { | |
209 return n; | |
210 } | |
211 } | |
212 | |
213 c2 = c % 10; | |
214 | |
215 *text++ = (u_char) (c2 + '0'); | |
216 n++; | |
217 | |
218 return n; | |
219 } | |
220 | |
221 | |
340
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
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diff
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|
222 /* AF_INET only */ |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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diff
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|
223 |
509 | 224 ngx_int_t |
225 ngx_ptocidr(ngx_str_t *text, void *cidr) | |
340
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
226 { |
368
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
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parents:
340
diff
changeset
|
227 ngx_int_t m; |
340
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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|
228 ngx_uint_t i; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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|
229 ngx_inet_cidr_t *in_cidr; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
230 |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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291
diff
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|
231 in_cidr = cidr; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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291
diff
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|
232 |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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|
233 for (i = 0; i < text->len; i++) { |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
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diff
changeset
|
234 if (text->data[i] == '/') { |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
235 break; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
236 } |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
237 } |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
238 |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
239 if (i == text->len) { |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
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|
240 return NGX_ERROR; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
241 } |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
242 |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
243 text->data[i] = '\0'; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
244 in_cidr->addr = inet_addr((char *) text->data); |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
245 text->data[i] = '/'; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
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diff
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|
246 if (in_cidr->addr == INADDR_NONE) { |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
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|
247 return NGX_ERROR; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
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|
248 } |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
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|
249 |
368
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
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parents:
340
diff
changeset
|
250 m = ngx_atoi(&text->data[i + 1], text->len - (i + 1)); |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
251 if (m == NGX_ERROR) { |
340
0bf903191ceb
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parents:
291
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|
252 return NGX_ERROR; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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291
diff
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|
253 } |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
254 |
368
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
255 if (m == 0) { |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
256 |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
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parents:
340
diff
changeset
|
257 /* the x86 compilers use the shl instruction that shifts by modulo 32 */ |
15c84a40e87d
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Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
258 |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
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parents:
340
diff
changeset
|
259 in_cidr->mask = 0; |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
260 return NGX_OK; |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
261 } |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
262 |
404
37b5381fb6d8
nginx-0.0.9-2004-07-30-21:05:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
368
diff
changeset
|
263 in_cidr->mask = htonl((ngx_uint_t) (0 - (1 << (32 - m)))); |
368
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
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parents:
340
diff
changeset
|
264 |
1380
b590a528fd41
ignore meaningless bits in CIDR and warn about them
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parents:
1107
diff
changeset
|
265 if (in_cidr->addr == (in_cidr->addr & in_cidr->mask)) { |
b590a528fd41
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|
266 return NGX_OK; |
b590a528fd41
ignore meaningless bits in CIDR and warn about them
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parents:
1107
diff
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|
267 } |
b590a528fd41
ignore meaningless bits in CIDR and warn about them
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parents:
1107
diff
changeset
|
268 |
b590a528fd41
ignore meaningless bits in CIDR and warn about them
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diff
changeset
|
269 in_cidr->addr &= in_cidr->mask; |
b590a528fd41
ignore meaningless bits in CIDR and warn about them
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diff
changeset
|
270 |
b590a528fd41
ignore meaningless bits in CIDR and warn about them
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diff
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|
271 return NGX_DONE; |
340
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nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
272 } |
425
bd39260a1383
nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
404
diff
changeset
|
273 |
bd39260a1383
nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
404
diff
changeset
|
274 |
651 | 275 ngx_int_t |
1559
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diff
changeset
|
276 ngx_parse_url(ngx_pool_t *pool, ngx_url_t *u) |
651 | 277 { |
906 | 278 u_char *p, *host, *port_start; |
279 size_t len, port_len; | |
651 | 280 ngx_int_t port; |
281 ngx_uint_t i; | |
804
472cd9768ac2
now the "listen" directives use ngx_parse_url()
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parents:
712
diff
changeset
|
282 struct hostent *h; |
651 | 283 #if (NGX_HAVE_UNIX_DOMAIN) |
284 struct sockaddr_un *saun; | |
285 #endif | |
286 | |
287 len = u->url.len; | |
288 p = u->url.data; | |
289 | |
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
906
diff
changeset
|
290 if (ngx_strncasecmp(p, (u_char *) "unix:", 5) == 0) { |
651 | 291 |
292 #if (NGX_HAVE_UNIX_DOMAIN) | |
293 | |
294 p += 5; | |
295 len -= 5; | |
296 | |
712
2452d89efea9
fix uri part in "proxy_pass http://unix:...", the bug appeared in nginx-0.3.47
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parents:
711
diff
changeset
|
297 u->uri.len = len; |
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fix uri part in "proxy_pass http://unix:...", the bug appeared in nginx-0.3.47
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diff
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|
298 u->uri.data = p; |
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711
diff
changeset
|
299 |
651 | 300 if (u->uri_part) { |
301 for (i = 0; i < len; i++) { | |
302 | |
303 if (p[i] == ':') { | |
304 len = i; | |
305 | |
306 u->uri.len -= len + 1; | |
307 u->uri.data += len + 1; | |
308 | |
309 break; | |
310 } | |
311 } | |
312 } | |
313 | |
314 if (len == 0) { | |
315 u->err = "no path in the unix domain socket"; | |
316 return NGX_ERROR; | |
317 } | |
318 | |
319 if (len + 1 > sizeof(saun->sun_path)) { | |
320 u->err = "too long path in the unix domain socket"; | |
321 return NGX_ERROR; | |
322 } | |
323 | |
1559
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use pool instead of ngx_conf_t
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1380
diff
changeset
|
324 u->addrs = ngx_pcalloc(pool, sizeof(ngx_peer_addr_t)); |
884 | 325 if (u->addrs == NULL) { |
651 | 326 return NGX_ERROR; |
327 } | |
328 | |
1559
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use pool instead of ngx_conf_t
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parents:
1380
diff
changeset
|
329 saun = ngx_pcalloc(pool, sizeof(struct sockaddr_un)); |
651 | 330 if (saun == NULL) { |
331 return NGX_ERROR; | |
332 } | |
333 | |
884 | 334 u->naddrs = 1; |
651 | 335 |
336 saun->sun_family = AF_UNIX; | |
337 (void) ngx_cpystrn((u_char *) saun->sun_path, p, len + 1); | |
338 | |
884 | 339 u->addrs[0].sockaddr = (struct sockaddr *) saun; |
340 u->addrs[0].socklen = sizeof(struct sockaddr_un); | |
341 u->addrs[0].name.len = len + 5; | |
342 u->addrs[0].name.data = u->url.data; | |
651 | 343 |
892
b579676ec6b2
unix socket upstreams always used the first unix upstream
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
344 u->host.len = len; |
b579676ec6b2
unix socket upstreams always used the first unix upstream
Igor Sysoev <igor@sysoev.ru>
parents:
884
diff
changeset
|
345 u->host.data = p; |
b579676ec6b2
unix socket upstreams always used the first unix upstream
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parents:
884
diff
changeset
|
346 |
906 | 347 u->unix_socket = 1; |
651 | 348 |
349 return NGX_OK; | |
350 | |
351 #else | |
352 u->err = "the unix domain sockets are not supported on this platform"; | |
353 | |
354 return NGX_ERROR; | |
355 | |
356 #endif | |
357 } | |
358 | |
359 if ((p[0] == ':' || p[0] == '/') && !u->listen) { | |
360 u->err = "invalid host"; | |
361 return NGX_ERROR; | |
362 } | |
363 | |
364 u->host.data = p; | |
906 | 365 |
366 port_start = NULL; | |
367 port_len = 0; | |
651 | 368 |
369 for (i = 0; i < len; i++) { | |
370 | |
371 if (p[i] == ':') { | |
906 | 372 port_start = &p[i + 1]; |
651 | 373 u->host.len = i; |
374 | |
375 if (!u->uri_part) { | |
906 | 376 port_len = len - (i + 1); |
651 | 377 break; |
378 } | |
379 } | |
380 | |
381 if (p[i] == '/') { | |
382 u->uri.len = len - i; | |
383 u->uri.data = &p[i]; | |
384 | |
385 if (u->host.len == 0) { | |
386 u->host.len = i; | |
387 } | |
388 | |
906 | 389 if (port_start == NULL) { |
884 | 390 u->no_port = 1; |
391 goto no_port; | |
651 | 392 } |
393 | |
906 | 394 port_len = &p[i] - port_start; |
651 | 395 |
906 | 396 if (port_len == 0) { |
651 | 397 u->err = "invalid port"; |
398 return NGX_ERROR; | |
399 } | |
400 | |
401 break; | |
402 } | |
403 } | |
404 | |
906 | 405 if (port_start) { |
651 | 406 |
906 | 407 if (port_len == 0) { |
408 port_len = &p[i] - port_start; | |
651 | 409 |
906 | 410 if (port_len == 0) { |
651 | 411 u->err = "invalid port"; |
412 return NGX_ERROR; | |
413 } | |
414 } | |
415 | |
906 | 416 port = ngx_atoi(port_start, port_len); |
651 | 417 |
418 if (port == NGX_ERROR || port < 1 || port > 65536) { | |
419 u->err = "invalid port"; | |
420 return NGX_ERROR; | |
421 } | |
422 | |
1671
8075179cae21
ngx_parse_url() saves port text, this allows to use it in proxy host header
Igor Sysoev <igor@sysoev.ru>
parents:
1647
diff
changeset
|
423 u->port_text.len = port_len; |
8075179cae21
ngx_parse_url() saves port text, this allows to use it in proxy host header
Igor Sysoev <igor@sysoev.ru>
parents:
1647
diff
changeset
|
424 u->port_text.data = port_start; |
8075179cae21
ngx_parse_url() saves port text, this allows to use it in proxy host header
Igor Sysoev <igor@sysoev.ru>
parents:
1647
diff
changeset
|
425 |
651 | 426 } else { |
427 port = ngx_atoi(p, len); | |
428 | |
429 if (port == NGX_ERROR) { | |
430 u->host.len = len; | |
884 | 431 u->no_port = 1; |
651 | 432 |
884 | 433 goto no_port; |
651 | 434 } |
435 | |
436 u->wildcard = 1; | |
437 } | |
438 | |
906 | 439 u->port = (in_port_t) port; |
651 | 440 |
884 | 441 no_port: |
651 | 442 |
443 if (u->listen) { | |
884 | 444 |
906 | 445 if (u->port == 0) { |
446 if (u->default_port == 0) { | |
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447 u->err = "no port"; |
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448 return NGX_ERROR; |
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449 } |
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450 |
906 | 451 u->port = u->default_port; |
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452 } |
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453 |
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454 if (u->host.len == 1 && u->host.data[0] == '*') { |
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455 u->host.len = 0; |
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456 } |
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457 |
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458 /* AF_INET only */ |
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459 |
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460 if (u->host.len) { |
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461 |
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462 host = ngx_alloc(u->host.len + 1, pool->log); |
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463 if (host == NULL) { |
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464 return NGX_ERROR; |
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465 } |
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466 |
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467 (void) ngx_cpystrn(host, u->host.data, u->host.len + 1); |
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468 |
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469 u->addr.in_addr = inet_addr((const char *) host); |
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470 |
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471 if (u->addr.in_addr == INADDR_NONE) { |
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472 h = gethostbyname((const char *) host); |
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473 |
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474 if (h == NULL || h->h_addr_list[0] == NULL) { |
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475 ngx_free(host); |
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476 u->err = "host not found"; |
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477 return NGX_ERROR; |
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478 } |
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479 |
906 | 480 u->addr.in_addr = *(in_addr_t *) (h->h_addr_list[0]); |
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481 } |
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482 |
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483 ngx_free(host); |
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484 |
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485 } else { |
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486 u->addr.in_addr = INADDR_ANY; |
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487 } |
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488 |
651 | 489 return NGX_OK; |
490 } | |
491 | |
492 if (u->host.len == 0) { | |
493 u->err = "no host"; | |
494 return NGX_ERROR; | |
495 } | |
496 | |
884 | 497 if (u->no_resolve) { |
498 return NGX_OK; | |
651 | 499 } |
500 | |
906 | 501 if (u->no_port) { |
502 u->port = u->default_port; | |
503 } | |
504 | |
505 if (u->port == 0) { | |
506 u->err = "no port"; | |
507 return NGX_ERROR; | |
508 } | |
509 | |
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510 if (ngx_inet_resolve_host(pool, u) != NGX_OK) { |
651 | 511 return NGX_ERROR; |
512 } | |
513 | |
514 return NGX_OK; | |
515 } | |
516 | |
517 | |
884 | 518 ngx_int_t |
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519 ngx_inet_resolve_host(ngx_pool_t *pool, ngx_url_t *u) |
651 | 520 { |
906 | 521 u_char *p, *host; |
651 | 522 size_t len; |
523 in_addr_t in_addr; | |
524 ngx_uint_t i; | |
525 struct hostent *h; | |
526 struct sockaddr_in *sin; | |
527 | |
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528 host = ngx_alloc(u->host.len + 1, pool->log); |
651 | 529 if (host == NULL) { |
884 | 530 return NGX_ERROR; |
651 | 531 } |
532 | |
884 | 533 (void) ngx_cpystrn(host, u->host.data, u->host.len + 1); |
651 | 534 |
535 /* AF_INET only */ | |
536 | |
537 in_addr = inet_addr((char *) host); | |
538 | |
539 if (in_addr == INADDR_NONE) { | |
540 h = gethostbyname((char *) host); | |
541 | |
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542 ngx_free(host); |
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543 |
651 | 544 if (h == NULL || h->h_addr_list[0] == NULL) { |
884 | 545 u->err = "host not found"; |
546 return NGX_ERROR; | |
651 | 547 } |
548 | |
884 | 549 if (u->one_addr == 0) { |
550 for (i = 0; h->h_addr_list[i] != NULL; i++) { /* void */ } | |
551 | |
552 } else { | |
553 i = 1; | |
554 } | |
651 | 555 |
556 /* MP: ngx_shared_palloc() */ | |
557 | |
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558 u->addrs = ngx_pcalloc(pool, i * sizeof(ngx_peer_addr_t)); |
884 | 559 if (u->addrs == NULL) { |
560 return NGX_ERROR; | |
651 | 561 } |
562 | |
884 | 563 u->naddrs = i; |
651 | 564 |
565 for (i = 0; h->h_addr_list[i] != NULL; i++) { | |
566 | |
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567 sin = ngx_pcalloc(pool, sizeof(struct sockaddr_in)); |
651 | 568 if (sin == NULL) { |
884 | 569 return NGX_ERROR; |
651 | 570 } |
571 | |
572 sin->sin_family = AF_INET; | |
906 | 573 sin->sin_port = htons(u->port); |
651 | 574 sin->sin_addr.s_addr = *(in_addr_t *) (h->h_addr_list[i]); |
575 | |
884 | 576 u->addrs[i].sockaddr = (struct sockaddr *) sin; |
577 u->addrs[i].socklen = sizeof(struct sockaddr_in); | |
651 | 578 |
579 len = INET_ADDRSTRLEN - 1 + 1 + sizeof(":65536") - 1; | |
580 | |
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581 p = ngx_palloc(pool, len); |
906 | 582 if (p == NULL) { |
884 | 583 return NGX_ERROR; |
651 | 584 } |
585 | |
906 | 586 len = ngx_sock_ntop(AF_INET, (struct sockaddr *) sin, p, len); |
651 | 587 |
906 | 588 u->addrs[i].name.len = ngx_sprintf(&p[len], ":%d", u->port) - p; |
589 u->addrs[i].name.data = p; | |
651 | 590 } |
591 | |
592 } else { | |
593 | |
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594 ngx_free(host); |
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595 |
651 | 596 /* MP: ngx_shared_palloc() */ |
597 | |
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598 u->addrs = ngx_pcalloc(pool, sizeof(ngx_peer_addr_t)); |
884 | 599 if (u->addrs == NULL) { |
600 return NGX_ERROR; | |
651 | 601 } |
602 | |
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603 sin = ngx_pcalloc(pool, sizeof(struct sockaddr_in)); |
651 | 604 if (sin == NULL) { |
884 | 605 return NGX_ERROR; |
651 | 606 } |
607 | |
884 | 608 u->naddrs = 1; |
651 | 609 |
610 sin->sin_family = AF_INET; | |
906 | 611 sin->sin_port = htons(u->port); |
651 | 612 sin->sin_addr.s_addr = in_addr; |
613 | |
884 | 614 u->addrs[0].sockaddr = (struct sockaddr *) sin; |
615 u->addrs[0].socklen = sizeof(struct sockaddr_in); | |
651 | 616 |
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617 p = ngx_palloc(pool, u->host.len + sizeof(":65536") - 1); |
906 | 618 if (p == NULL) { |
884 | 619 return NGX_ERROR; |
651 | 620 } |
621 | |
906 | 622 u->addrs[0].name.len = ngx_sprintf(p, "%V:%d", &u->host, u->port) - p; |
623 u->addrs[0].name.data = p; | |
651 | 624 } |
625 | |
884 | 626 return NGX_OK; |
651 | 627 } |