annotate src/core/ngx_inet.c @ 340:0bf903191ceb

nginx-0.0.3-2004-05-25-19:28:46 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 25 May 2004 15:28:46 +0000
parents 117ccc7c4055
children 15c84a40e87d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1
53cb81681040 nginx-0.0.1-2002-12-15-09:25:09 import
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2 #include <ngx_config.h>
100
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3 #include <ngx_core.h>
26
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4
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5
291
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6 ngx_inline static size_t ngx_sprint_uchar(u_char *text, u_char c, size_t len)
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7 {
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8 size_t n;
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9 ngx_uint_t c1, c2;
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10
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11 n = 0;
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12
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13 if (len == n) {
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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14 return n;
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15 }
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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16
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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17 c1 = c / 100;
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18
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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19 if (c1) {
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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20 *text++ = (u_char) (c1 + '0');
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21 n++;
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22
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23 if (len == n) {
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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24 return n;
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25 }
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26 }
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27
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28 c2 = (c % 100) / 10;
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29
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30 if (c1 || c2) {
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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31 *text++ = (u_char) (c2 + '0');
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32 n++;
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33
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34 if (len == n) {
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35 return n;
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36 }
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37 }
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38
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39 c2 = c % 10;
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40
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41 *text++ = (u_char) (c2 + '0');
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42 n++;
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43
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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44 return n;
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45 }
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117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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47
57
a499e0d1f16e nginx-0.0.1-2003-01-30-10:28:09 import
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48 /* AF_INET only */
a499e0d1f16e nginx-0.0.1-2003-01-30-10:28:09 import
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49
290
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50 size_t ngx_sock_ntop(int family, struct sockaddr *addr, u_char *text,
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51 size_t len)
57
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52 {
290
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53 u_char *p;
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54 size_t n;
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55 ngx_uint_t i;
57
a499e0d1f16e nginx-0.0.1-2003-01-30-10:28:09 import
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56 struct sockaddr_in *addr_in;
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57
291
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58 if (len == 0) {
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59 return 0;
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60 }
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61
57
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62 if (family != AF_INET) {
a499e0d1f16e nginx-0.0.1-2003-01-30-10:28:09 import
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63 return 0;
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64 }
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65
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66 addr_in = (struct sockaddr_in *) addr;
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67 p = (u_char *) &addr_in->sin_addr;
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68
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69 if (len > INET_ADDRSTRLEN) {
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70 len = INET_ADDRSTRLEN;
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71 }
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72
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73 n = ngx_sprint_uchar(text, p[0], len);
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74
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75 i = 1;
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76
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77 do {
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78 if (len == n) {
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79 text[n - 1] = '\0';
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80 return n;
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81 }
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82
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83 text[n++] = '.';
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84
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85 if (len == n) {
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86 text[n - 1] = '\0';
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87 return n;
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88 }
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89
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90 n += ngx_sprint_uchar(&text[n], p[i++], len - n);
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91
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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92 } while (i < 4);
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93
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94 if (len == n) {
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95 text[n] = '\0';
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96 return n;
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97 }
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98
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99 text[n] = '\0';
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100
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101 return n;
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102
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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103 #if 0
290
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104 return ngx_snprintf((char *) text,
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
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105 len > INET_ADDRSTRLEN ? INET_ADDRSTRLEN : len,
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
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106 "%u.%u.%u.%u", p[0], p[1], p[2], p[3]);
291
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107 #endif
57
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108 }
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109
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110
291
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111 size_t ngx_inet_ntop(int family, void *addr, u_char *text, size_t len)
26
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112 {
291
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113 u_char *p;
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114 size_t n;
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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115 ngx_uint_t i;
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116
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
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117 if (len == 0) {
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118 return 0;
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119 }
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120
57
a499e0d1f16e nginx-0.0.1-2003-01-30-10:28:09 import
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121 if (family != AF_INET) {
26
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122 return 0;
57
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123 }
26
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diff changeset
124
291
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
125 p = (u_char *) addr;
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
126
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
127 if (len > INET_ADDRSTRLEN) {
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
128 len = INET_ADDRSTRLEN;
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
129 }
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
130
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
131 n = ngx_sprint_uchar(text, p[0], len);
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
132
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
133 i = 1;
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
134
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
135 do {
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
136 if (len == n) {
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
137 text[n - 1] = '\0';
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
138 return n;
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
139 }
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
140
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
141 text[n++] = '.';
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
142
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
143 if (len == n) {
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
144 text[n - 1] = '\0';
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
145 return n;
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
146 }
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
147
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
148 n += ngx_sprint_uchar(&text[n], p[i++], len - n);
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
149
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
150 } while (i < 4);
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
151
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
152 if (len == n) {
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
153 text[n] = '\0';
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
154 return n;
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
155 }
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
156
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
157 text[n] = '\0';
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
158
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
159 return n;
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
160
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
161 #if 0
290
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
162 return ngx_snprintf((char *) text,
87e73f067470 nginx-0.0.2-2004-03-16-10:10:12 import
Igor Sysoev <igor@sysoev.ru>
parents: 100
diff changeset
163 len > INET_ADDRSTRLEN ? INET_ADDRSTRLEN : len,
291
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
164 "%u.%u.%u.%u", p[0], p[1], p[2], p[3]);
117ccc7c4055 nginx-0.0.3-2004-03-16-16:35:20 import
Igor Sysoev <igor@sysoev.ru>
parents: 290
diff changeset
165 #endif
26
53cb81681040 nginx-0.0.1-2002-12-15-09:25:09 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff changeset
166 }
340
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
167
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
168
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
169 /* AF_INET only */
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
170
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
171 ngx_int_t ngx_ptocidr(ngx_str_t *text, void *cidr)
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
172 {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
173 ngx_uint_t i;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
174 ngx_inet_cidr_t *in_cidr;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
175
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
176 in_cidr = cidr;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
177
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
178 for (i = 0; i < text->len; i++) {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
179 if (text->data[i] == '/') {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
180 break;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
181 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
182 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
183
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
184 if (i == text->len) {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
185 return NGX_ERROR;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
186 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
187
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
188 text->data[i] = '\0';
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
189 in_cidr->addr = inet_addr((char *) text->data);
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
190 text->data[i] = '/';
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
191 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 changeset
192 return NGX_ERROR;
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
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
194
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
195 in_cidr->mask = ngx_atoi(&text->data[i + 1], text->len - (i + 1));
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
196 if (in_cidr->mask == (in_addr_t) NGX_ERROR) {
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
197 return NGX_ERROR;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
198 }
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
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 return NGX_OK;
0bf903191ceb nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents: 291
diff changeset
201 }