Mercurial > hg > nginx-quic
view src/core/ngx_regex.c @ 3242:f678ea405737 stable-0.7
merge r2993:
geo module supports trusted proxies
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Mon, 26 Oct 2009 16:42:19 +0000 |
parents | 2a92804f4109 |
children | be47fe127f8c |
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/* * Copyright (C) Igor Sysoev */ #include <ngx_config.h> #include <ngx_core.h> static void * ngx_libc_cdecl ngx_regex_malloc(size_t size); static void ngx_libc_cdecl ngx_regex_free(void *p); static ngx_pool_t *ngx_pcre_pool; void ngx_regex_init(void) { pcre_malloc = ngx_regex_malloc; pcre_free = ngx_regex_free; } ngx_regex_t * ngx_regex_compile(ngx_str_t *pattern, ngx_int_t options, ngx_pool_t *pool, ngx_str_t *err) { int erroff; const char *errstr; ngx_regex_t *re; #if (NGX_THREADS) ngx_core_tls_t *tls; #if (NGX_SUPPRESS_WARN) tls = NULL; #endif if (ngx_threaded) { tls = ngx_thread_get_tls(ngx_core_tls_key); tls->pool = pool; } else { ngx_pcre_pool = pool; } #else ngx_pcre_pool = pool; #endif re = pcre_compile((const char *) pattern->data, (int) options, &errstr, &erroff, NULL); if (re == NULL) { if ((size_t) erroff == pattern->len) { ngx_snprintf(err->data, err->len - 1, "pcre_compile() failed: %s in \"%s\"%Z", errstr, pattern->data); } else { ngx_snprintf(err->data, err->len - 1, "pcre_compile() failed: %s in \"%s\" at \"%s\"%Z", errstr, pattern->data, pattern->data + erroff); } } /* ensure that there is no current pool */ #if (NGX_THREADS) if (ngx_threaded) { tls->pool = NULL; } else { ngx_pcre_pool = NULL; } #else ngx_pcre_pool = NULL; #endif return re; } ngx_int_t ngx_regex_capture_count(ngx_regex_t *re) { int rc, n; n = 0; rc = pcre_fullinfo(re, NULL, PCRE_INFO_CAPTURECOUNT, &n); if (rc < 0) { return (ngx_int_t) rc; } return (ngx_int_t) n; } ngx_int_t ngx_regex_exec(ngx_regex_t *re, ngx_str_t *s, int *captures, ngx_int_t size) { int rc; rc = pcre_exec(re, NULL, (const char *) s->data, s->len, 0, 0, captures, size); if (rc == -1) { return NGX_REGEX_NO_MATCHED; } return rc; } ngx_int_t ngx_regex_exec_array(ngx_array_t *a, ngx_str_t *s, ngx_log_t *log) { ngx_int_t n; ngx_uint_t i; ngx_regex_elt_t *re; re = a->elts; for (i = 0; i < a->nelts; i++) { n = ngx_regex_exec(re[i].regex, s, NULL, 0); if (n == NGX_REGEX_NO_MATCHED) { continue; } if (n < 0) { ngx_log_error(NGX_LOG_ALERT, log, 0, ngx_regex_exec_n " failed: %d on \"%V\" using \"%s\"", n, s, re[i].name); return NGX_ERROR; } /* match */ return NGX_OK; } return NGX_DECLINED; } static void * ngx_libc_cdecl ngx_regex_malloc(size_t size) { ngx_pool_t *pool; #if (NGX_THREADS) ngx_core_tls_t *tls; if (ngx_threaded) { tls = ngx_thread_get_tls(ngx_core_tls_key); pool = tls->pool; } else { pool = ngx_pcre_pool; } #else pool = ngx_pcre_pool; #endif if (pool) { return ngx_palloc(pool, size); } return NULL; } static void ngx_libc_cdecl ngx_regex_free(void *p) { return; }