Mercurial > hg > nginx-quic
annotate src/core/ngx_regex.c @ 4450:4919fb357a5d stable-1.0
Merge of r4406, r4413: copyrights updated.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Sun, 05 Feb 2012 20:02:59 +0000 |
parents | 66ccd4ae6625 |
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rev | line source |
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1 |
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2 /* |
444
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3 * Copyright (C) Igor Sysoev |
4450
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4 * Copyright (C) Nginx, Inc. |
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 |
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11 |
503 | 12 static void * ngx_libc_cdecl ngx_regex_malloc(size_t size); |
13 static void ngx_libc_cdecl ngx_regex_free(void *p); | |
195
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14 |
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15 |
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16 static ngx_pool_t *ngx_pcre_pool; |
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17 |
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18 |
503 | 19 void |
20 ngx_regex_init(void) | |
195
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21 { |
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22 pcre_malloc = ngx_regex_malloc; |
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23 pcre_free = ngx_regex_free; |
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24 } |
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25 |
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26 |
3325 | 27 static ngx_inline void |
28 ngx_regex_malloc_init(ngx_pool_t *pool) | |
195
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29 { |
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30 #if (NGX_THREADS) |
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31 ngx_core_tls_t *tls; |
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32 |
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33 if (ngx_threaded) { |
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34 tls = ngx_thread_get_tls(ngx_core_tls_key); |
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35 tls->pool = pool; |
3325 | 36 return; |
381
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37 } |
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38 |
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39 #endif |
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40 |
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41 ngx_pcre_pool = pool; |
3325 | 42 } |
381
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43 |
3325 | 44 |
45 static ngx_inline void | |
46 ngx_regex_malloc_done(void) | |
47 { | |
48 #if (NGX_THREADS) | |
49 ngx_core_tls_t *tls; | |
50 | |
51 if (ngx_threaded) { | |
52 tls = ngx_thread_get_tls(ngx_core_tls_key); | |
53 tls->pool = NULL; | |
54 return; | |
55 } | |
56 | |
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57 #endif |
3325 | 58 |
59 ngx_pcre_pool = NULL; | |
60 } | |
61 | |
62 | |
63 ngx_int_t | |
64 ngx_regex_compile(ngx_regex_compile_t *rc) | |
65 { | |
66 int n, erroff; | |
67 char *p; | |
68 const char *errstr; | |
69 ngx_regex_t *re; | |
70 | |
71 ngx_regex_malloc_init(rc->pool); | |
72 | |
73 re = pcre_compile((const char *) rc->pattern.data, (int) rc->options, | |
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74 &errstr, &erroff, NULL); |
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75 |
3325 | 76 /* ensure that there is no current pool */ |
77 ngx_regex_malloc_done(); | |
78 | |
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79 if (re == NULL) { |
3325 | 80 if ((size_t) erroff == rc->pattern.len) { |
81 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, | |
82 "pcre_compile() failed: %s in \"%V\"", | |
83 errstr, &rc->pattern) | |
84 - rc->err.data; | |
85 | |
195
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86 } else { |
3325 | 87 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, |
88 "pcre_compile() failed: %s in \"%V\" at \"%s\"", | |
89 errstr, &rc->pattern, rc->pattern.data + erroff) | |
90 - rc->err.data; | |
195
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91 } |
3325 | 92 |
93 return NGX_ERROR; | |
94 } | |
95 | |
96 rc->regex = re; | |
97 | |
98 n = pcre_fullinfo(re, NULL, PCRE_INFO_CAPTURECOUNT, &rc->captures); | |
99 if (n < 0) { | |
100 p = "pcre_fullinfo(\"%V\", PCRE_INFO_CAPTURECOUNT) failed: %d"; | |
101 goto failed; | |
102 } | |
103 | |
104 if (rc->captures == 0) { | |
105 return NGX_OK; | |
195
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106 } |
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107 |
3325 | 108 n = pcre_fullinfo(re, NULL, PCRE_INFO_NAMECOUNT, &rc->named_captures); |
109 if (n < 0) { | |
110 p = "pcre_fullinfo(\"%V\", PCRE_INFO_NAMECOUNT) failed: %d"; | |
111 goto failed; | |
112 } | |
113 | |
114 if (rc->named_captures == 0) { | |
115 return NGX_OK; | |
116 } | |
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117 |
3325 | 118 n = pcre_fullinfo(re, NULL, PCRE_INFO_NAMEENTRYSIZE, &rc->name_size); |
119 if (n < 0) { | |
120 p = "pcre_fullinfo(\"%V\", PCRE_INFO_NAMEENTRYSIZE) failed: %d"; | |
121 goto failed; | |
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122 } |
3325 | 123 |
124 n = pcre_fullinfo(re, NULL, PCRE_INFO_NAMETABLE, &rc->names); | |
125 if (n < 0) { | |
126 p = "pcre_fullinfo(\"%V\", PCRE_INFO_NAMETABLE) failed: %d"; | |
127 goto failed; | |
128 } | |
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129 |
3325 | 130 return NGX_OK; |
131 | |
132 failed: | |
133 | |
134 rc->err.len = ngx_snprintf(rc->err.data, rc->err.len, p, &rc->pattern, n) | |
135 - rc->err.data; | |
136 return NGX_OK; | |
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137 } |
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138 |
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139 |
503 | 140 ngx_int_t |
1784 | 141 ngx_regex_exec_array(ngx_array_t *a, ngx_str_t *s, ngx_log_t *log) |
142 { | |
143 ngx_int_t n; | |
144 ngx_uint_t i; | |
145 ngx_regex_elt_t *re; | |
146 | |
147 re = a->elts; | |
148 | |
149 for (i = 0; i < a->nelts; i++) { | |
150 | |
151 n = ngx_regex_exec(re[i].regex, s, NULL, 0); | |
152 | |
153 if (n == NGX_REGEX_NO_MATCHED) { | |
154 continue; | |
155 } | |
156 | |
157 if (n < 0) { | |
158 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
3325 | 159 ngx_regex_exec_n " failed: %i on \"%V\" using \"%s\"", |
1784 | 160 n, s, re[i].name); |
161 return NGX_ERROR; | |
162 } | |
163 | |
164 /* match */ | |
165 | |
166 return NGX_OK; | |
167 } | |
168 | |
169 return NGX_DECLINED; | |
170 } | |
171 | |
172 | |
503 | 173 static void * ngx_libc_cdecl |
174 ngx_regex_malloc(size_t size) | |
195
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175 { |
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176 ngx_pool_t *pool; |
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177 #if (NGX_THREADS) |
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178 ngx_core_tls_t *tls; |
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179 |
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180 if (ngx_threaded) { |
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181 tls = ngx_thread_get_tls(ngx_core_tls_key); |
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182 pool = tls->pool; |
3325 | 183 |
381
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184 } else { |
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185 pool = ngx_pcre_pool; |
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186 } |
3325 | 187 |
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188 #else |
3325 | 189 |
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190 pool = ngx_pcre_pool; |
3325 | 191 |
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192 #endif |
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193 |
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194 if (pool) { |
2049 | 195 return ngx_palloc(pool, size); |
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196 } |
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197 |
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198 return NULL; |
195
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199 } |
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200 |
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201 |
503 | 202 static void ngx_libc_cdecl |
203 ngx_regex_free(void *p) | |
195
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204 { |
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205 return; |
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206 } |