Mercurial > hg > nginx-quic
annotate src/core/ngx_inet.c @ 504:4cfdcb10967c
release-0.1.26 tag
author | Igor Sysoev <igor@sysoev.ru> |
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date | Tue, 22 Mar 2005 16:02:46 +0000 |
parents | d4ea69372b94 |
children | 9b8c906f6e63 |
rev | line source |
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441
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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5 |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
479 | 9 #include <ngx_event.h> |
10 #include <ngx_event_connect.h> | |
26
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11 |
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12 |
461 | 13 /* |
14 * ngx_sock_ntop() and ngx_inet_ntop() may be implemented as | |
15 * "ngx_sprintf(text, "%ud.%ud.%ud.%ud", p[0], p[1], p[2], p[3])", | |
16 * however, they were implemented long before the ngx_sprintf() appeared | |
17 * and they are faster by 1.5-2.5 times, so it is worth to keep them. | |
18 * | |
19 * By the way, the implementation using ngx_sprintf() is faster by 2.5-3 times | |
479 | 20 * than using FreeBSD libc's snprintf(). |
461 | 21 */ |
22 | |
23 | |
467 | 24 static ngx_inline size_t ngx_sprint_uchar(u_char *text, u_char c, size_t len) |
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25 { |
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26 size_t n; |
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27 ngx_uint_t c1, c2; |
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28 |
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29 n = 0; |
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30 |
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31 if (len == n) { |
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32 return n; |
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33 } |
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34 |
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35 c1 = c / 100; |
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36 |
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37 if (c1) { |
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38 *text++ = (u_char) (c1 + '0'); |
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39 n++; |
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40 |
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41 if (len == n) { |
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42 return n; |
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43 } |
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44 } |
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45 |
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46 c2 = (c % 100) / 10; |
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47 |
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48 if (c1 || c2) { |
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49 *text++ = (u_char) (c2 + '0'); |
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50 n++; |
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51 |
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52 if (len == n) { |
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53 return n; |
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54 } |
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55 } |
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56 |
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57 c2 = c % 10; |
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58 |
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59 *text++ = (u_char) (c2 + '0'); |
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60 n++; |
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61 |
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62 return n; |
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63 } |
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64 |
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65 |
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66 /* AF_INET only */ |
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67 |
479 | 68 size_t ngx_sock_ntop(int family, struct sockaddr *sa, u_char *text, |
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69 size_t len) |
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70 { |
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71 u_char *p; |
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72 size_t n; |
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73 ngx_uint_t i; |
479 | 74 struct sockaddr_in *sin; |
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75 |
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76 if (len == 0) { |
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77 return 0; |
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78 } |
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79 |
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80 if (family != AF_INET) { |
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81 return 0; |
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82 } |
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83 |
479 | 84 sin = (struct sockaddr_in *) sa; |
85 p = (u_char *) &sin->sin_addr; | |
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86 |
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87 if (len > INET_ADDRSTRLEN) { |
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88 len = INET_ADDRSTRLEN; |
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89 } |
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90 |
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91 n = ngx_sprint_uchar(text, p[0], len); |
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92 |
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93 i = 1; |
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94 |
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95 do { |
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96 if (len == n) { |
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97 text[n - 1] = '\0'; |
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98 return n; |
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99 } |
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100 |
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101 text[n++] = '.'; |
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102 |
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103 if (len == n) { |
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104 text[n - 1] = '\0'; |
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105 return n; |
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106 } |
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107 |
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108 n += ngx_sprint_uchar(&text[n], p[i++], len - n); |
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109 |
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110 } while (i < 4); |
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111 |
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112 if (len == n) { |
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113 text[n] = '\0'; |
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114 return n; |
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115 } |
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116 |
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117 text[n] = '\0'; |
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118 |
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119 return n; |
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120 } |
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121 |
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122 size_t ngx_inet_ntop(int family, void *addr, u_char *text, size_t len) |
26
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123 { |
291
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124 u_char *p; |
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125 size_t n; |
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126 ngx_uint_t i; |
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127 |
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128 if (len == 0) { |
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129 return 0; |
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130 } |
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131 |
57
a499e0d1f16e
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26
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132 if (family != AF_INET) { |
26
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133 return 0; |
57
a499e0d1f16e
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26
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134 } |
26
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135 |
291
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136 p = (u_char *) addr; |
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137 |
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138 if (len > INET_ADDRSTRLEN) { |
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139 len = INET_ADDRSTRLEN; |
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140 } |
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141 |
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142 n = ngx_sprint_uchar(text, p[0], len); |
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143 |
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144 i = 1; |
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145 |
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146 do { |
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147 if (len == n) { |
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148 text[n - 1] = '\0'; |
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149 return n; |
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150 } |
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151 |
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152 text[n++] = '.'; |
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153 |
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|
154 if (len == n) { |
117ccc7c4055
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|
155 text[n - 1] = '\0'; |
117ccc7c4055
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156 return n; |
117ccc7c4055
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diff
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|
157 } |
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|
158 |
117ccc7c4055
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159 n += ngx_sprint_uchar(&text[n], p[i++], len - n); |
117ccc7c4055
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160 |
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161 } while (i < 4); |
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162 |
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163 if (len == n) { |
117ccc7c4055
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164 text[n] = '\0'; |
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165 return n; |
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|
166 } |
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|
167 |
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168 text[n] = '\0'; |
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|
169 |
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|
170 return n; |
26
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parents:
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|
171 } |
340
0bf903191ceb
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|
172 |
0bf903191ceb
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|
173 |
0bf903191ceb
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|
174 /* AF_INET only */ |
0bf903191ceb
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|
175 |
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176 ngx_int_t ngx_ptocidr(ngx_str_t *text, void *cidr) |
0bf903191ceb
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|
177 { |
368
15c84a40e87d
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parents:
340
diff
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|
178 ngx_int_t m; |
340
0bf903191ceb
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179 ngx_uint_t i; |
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180 ngx_inet_cidr_t *in_cidr; |
0bf903191ceb
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|
181 |
0bf903191ceb
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182 in_cidr = cidr; |
0bf903191ceb
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|
183 |
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|
184 for (i = 0; i < text->len; i++) { |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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|
185 if (text->data[i] == '/') { |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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diff
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|
186 break; |
0bf903191ceb
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parents:
291
diff
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|
187 } |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
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|
188 } |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
189 |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
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|
190 if (i == text->len) { |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
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|
191 return NGX_ERROR; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
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|
192 } |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
193 |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
194 text->data[i] = '\0'; |
0bf903191ceb
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291
diff
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|
195 in_cidr->addr = inet_addr((char *) text->data); |
0bf903191ceb
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parents:
291
diff
changeset
|
196 text->data[i] = '/'; |
0bf903191ceb
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291
diff
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|
197 if (in_cidr->addr == INADDR_NONE) { |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
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|
198 return NGX_ERROR; |
0bf903191ceb
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parents:
291
diff
changeset
|
199 } |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
200 |
368
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
201 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
|
202 if (m == NGX_ERROR) { |
340
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
203 return NGX_ERROR; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
204 } |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
205 |
368
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
206 if (m == 0) { |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
207 |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
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parents:
340
diff
changeset
|
208 /* the x86 compilers use the shl instruction that shifts by modulo 32 */ |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
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parents:
340
diff
changeset
|
209 |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
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parents:
340
diff
changeset
|
210 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
|
211 return NGX_OK; |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
212 } |
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
213 |
404
37b5381fb6d8
nginx-0.0.9-2004-07-30-21:05:14 import
Igor Sysoev <igor@sysoev.ru>
parents:
368
diff
changeset
|
214 in_cidr->mask = htonl((ngx_uint_t) (0 - (1 << (32 - m)))); |
368
15c84a40e87d
nginx-0.0.7-2004-06-24-20:07:04 import
Igor Sysoev <igor@sysoev.ru>
parents:
340
diff
changeset
|
215 |
340
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
291
diff
changeset
|
216 return NGX_OK; |
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
291
diff
changeset
|
217 } |
425
bd39260a1383
nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
404
diff
changeset
|
218 |
bd39260a1383
nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
404
diff
changeset
|
219 |
479 | 220 ngx_peers_t *ngx_inet_upstream_parse(ngx_conf_t *cf, ngx_inet_upstream_t *u) |
425
bd39260a1383
nginx-0.0.10-2004-09-14-19:55:24 import
Igor Sysoev <igor@sysoev.ru>
parents:
404
diff
changeset
|
221 { |
479 | 222 char *err; |
223 u_char *host; | |
224 in_addr_t in_addr; | |
225 ngx_uint_t i, len; | |
226 ngx_peers_t *peers; | |
227 struct hostent *h; | |
228 struct sockaddr_in *sin; | |
229 | |
230 err = ngx_inet_parse_host_port(u); | |
231 | |
232 if (err) { | |
233 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
234 "%s in upstream \"%V\"", err, &u->name); | |
235 return NULL; | |
236 } | |
237 | |
238 if (u->default_port) { | |
239 if (u->default_port_value == 0) { | |
240 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
241 "no port in upstream \"%V\"", &u->name); | |
242 return NULL; | |
243 } | |
244 | |
245 u->port = u->default_port_value; | |
246 | |
501 | 247 u->port_text.data = ngx_palloc(cf->pool, sizeof("65536") - 1); |
248 if (u->port_text.data == NULL) { | |
479 | 249 return NULL; |
250 } | |
251 | |
252 u->port_text.len = ngx_sprintf(u->port_text.data, "%d", | |
253 u->default_port_value) | |
254 - u->port_text.data; | |
255 | |
256 } else if (u->port) { | |
257 if (u->port == u->default_port_value) { | |
258 u->default_port = 1; | |
259 } | |
260 | |
261 } else { | |
262 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
263 "no port in upstream \"%V\"", &u->name); | |
264 return NULL; | |
265 } | |
266 | |
267 if (u->host.len == 0) { | |
268 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
269 "no host in upstream \"%V\"", &u->name); | |
270 return NULL; | |
271 } | |
272 | |
273 u->port = htons(u->port); | |
274 | |
501 | 275 host = ngx_palloc(cf->pool, u->host.len + 1); |
276 if (host == NULL) { | |
479 | 277 return NULL; |
278 } | |
279 | |
280 ngx_cpystrn(host, u->host.data, u->host.len + 1); | |
281 | |
282 /* AF_INET only */ | |
283 | |
284 in_addr = inet_addr((char *) host); | |
285 | |
286 if (in_addr == INADDR_NONE) { | |
287 h = gethostbyname((char *) host); | |
288 | |
289 if (h == NULL || h->h_addr_list[0] == NULL) { | |
290 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
291 "host %s is not found in upstream \"%V\"", | |
292 host, &u->name); | |
293 return NULL; | |
294 } | |
295 | |
296 for (i = 0; h->h_addr_list[i] != NULL; i++) { /* void */ } | |
297 | |
298 /* MP: ngx_shared_palloc() */ | |
299 | |
300 peers = ngx_pcalloc(cf->pool, | |
301 sizeof(ngx_peers_t) + sizeof(ngx_peer_t) * (i - 1)); | |
302 if (peers == NULL) { | |
303 return NULL; | |
304 } | |
305 | |
306 peers->number = i; | |
307 peers->weight = 1; | |
308 | |
309 for (i = 0; h->h_addr_list[i] != NULL; i++) { | |
310 | |
501 | 311 sin = ngx_pcalloc(cf->pool, sizeof(struct sockaddr_in)); |
312 if (sin == NULL) { | |
479 | 313 return NULL; |
314 } | |
315 | |
316 sin->sin_family = AF_INET; | |
317 sin->sin_port = u->port; | |
487 | 318 sin->sin_addr.s_addr = *(in_addr_t *) (h->h_addr_list[i]); |
479 | 319 |
320 peers->peer[i].sockaddr = (struct sockaddr *) sin; | |
321 peers->peer[i].socklen = sizeof(struct sockaddr_in); | |
322 | |
323 len = INET_ADDRSTRLEN - 1 + 1 + u->port_text.len; | |
324 | |
501 | 325 peers->peer[i].name.data = ngx_palloc(cf->pool, len); |
326 if (peers->peer[i].name.data == NULL) { | |
479 | 327 return NULL; |
328 } | |
329 | |
330 len = ngx_sock_ntop(AF_INET, (struct sockaddr *) sin, | |
331 peers->peer[i].name.data, len); | |
332 | |
333 peers->peer[i].name.data[len++] = ':'; | |
425
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334 |
479 | 335 ngx_memcpy(peers->peer[i].name.data + len, |
336 u->port_text.data, u->port_text.len); | |
337 | |
338 peers->peer[i].name.len = len + u->port_text.len; | |
339 | |
340 peers->peer[i].uri_separator = ""; | |
341 | |
342 peers->peer[i].weight = 1; | |
343 peers->peer[i].max_fails = 1; | |
344 peers->peer[i].fail_timeout = 60; | |
345 } | |
346 | |
347 } else { | |
348 | |
349 /* MP: ngx_shared_palloc() */ | |
350 | |
501 | 351 peers = ngx_pcalloc(cf->pool, sizeof(ngx_peers_t)); |
352 if (peers == NULL) { | |
479 | 353 return NULL; |
354 } | |
355 | |
501 | 356 sin = ngx_pcalloc(cf->pool, sizeof(struct sockaddr_in)); |
357 if (sin == NULL) { | |
479 | 358 return NULL; |
359 } | |
360 | |
361 peers->number = 1; | |
362 | |
363 sin->sin_family = AF_INET; | |
364 sin->sin_port = u->port; | |
365 sin->sin_addr.s_addr = in_addr; | |
366 | |
367 peers->peer[0].sockaddr = (struct sockaddr *) sin; | |
368 peers->peer[0].socklen = sizeof(struct sockaddr_in); | |
369 | |
370 len = u->host.len + 1 + u->port_text.len; | |
371 | |
372 peers->peer[0].name.len = len; | |
373 | |
501 | 374 peers->peer[0].name.data = ngx_palloc(cf->pool, len); |
375 if (peers->peer[0].name.data == NULL) { | |
479 | 376 return NULL; |
377 } | |
378 | |
379 len = u->host.len; | |
380 | |
381 ngx_memcpy(peers->peer[0].name.data, u->host.data, len); | |
382 | |
383 peers->peer[0].name.data[len++] = ':'; | |
384 | |
385 ngx_memcpy(peers->peer[0].name.data + len, | |
386 u->port_text.data, u->port_text.len); | |
387 | |
388 peers->peer[0].uri_separator = ""; | |
389 } | |
390 | |
391 return peers; | |
392 } | |
393 | |
394 | |
395 char *ngx_inet_parse_host_port(ngx_inet_upstream_t *u) | |
396 { | |
397 size_t i; | |
398 ngx_int_t port; | |
399 ngx_str_t *url; | |
400 | |
401 url = &u->url; | |
402 | |
403 if (u->port_only) { | |
404 i = 0; | |
405 | |
406 } else { | |
407 if (url->data[0] == ':' || url->data[0] == '/') { | |
408 return "invalid host"; | |
409 } | |
410 | |
411 i = 1; | |
412 } | |
413 | |
414 u->host.data = url->data; | |
415 u->host_header = *url; | |
416 | |
417 for (/* void */; i < url->len; i++) { | |
418 | |
419 if (url->data[i] == ':') { | |
420 u->port_text.data = &url->data[i] + 1; | |
421 u->host.len = i; | |
422 | |
423 if (!u->uri_part) { | |
424 u->port_text.len = &url->data[url->len] - u->port_text.data; | |
425 break; | |
426 } | |
427 } | |
428 | |
429 if (url->data[i] == '/') { | |
430 u->uri.data = &url->data[i]; | |
431 u->uri.len = url->len - i; | |
432 u->host_header.len = i; | |
433 | |
434 if (u->host.len == 0) { | |
435 u->host.len = i; | |
436 } | |
437 | |
438 if (u->port_text.data == NULL) { | |
439 u->default_port = 1; | |
440 return NULL; | |
441 } | |
442 | |
443 u->port_text.len = &url->data[i] - u->port_text.data; | |
444 | |
445 if (u->port_text.len == 0) { | |
446 return "invalid port"; | |
447 } | |
448 | |
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449 break; |
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450 } |
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451 } |
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452 |
479 | 453 if (u->port_text.data == NULL) { |
454 port = ngx_atoi(url->data, url->len); | |
455 | |
456 if (port == NGX_ERROR) { | |
457 u->default_port = 1; | |
458 u->host.len = url->len; | |
459 | |
460 return NULL; | |
461 } | |
425
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462 |
479 | 463 u->port_text = *url; |
464 u->wildcard = 1; | |
425
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465 |
479 | 466 } else { |
467 if (u->port_text.len == 0) { | |
468 return "no URI"; | |
469 } | |
470 | |
471 port = ngx_atoi(u->port_text.data, u->port_text.len); | |
472 | |
473 if (port == NGX_ERROR || port < 1 || port > 65536) { | |
474 return "invalid port"; | |
475 } | |
425
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476 } |
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477 |
479 | 478 u->port = (in_port_t) port; |
425
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479 |
479 | 480 return NULL; |
425
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481 } |