nginx/src/core/ngx_regex.c
Igor Sysoev c15717285d nginx-0.1.25-RELEASE import
*) Bugfix: nginx did run on Linux parisc.

    *) Feature: nginx now does not start under FreeBSD if the sysctl
       kern.ipc.somaxconn value is too big.

    *) Bugfix: if a request was internally redirected by the
       ngx_http_index_module module to the ngx_http_proxy_module or
       ngx_http_fastcgi_module modules, then the index file was not closed
       after request completion.

    *) Feature: the "proxy_pass" can be used in location with regular
       expression.

    *) Feature: the ngx_http_rewrite_filter_module module supports the
       condition like "if ($HTTP_USER_AGENT ~ MSIE)".

    *) Bugfix: nginx started too slow if the large number of addresses and
       text values were used in the "geo" directive.

    *) Change: a variable name must be declared as "$name" in the "geo"
       directive. The previous variant without "$" is still supported, but
       will be removed soon.

    *) Feature: the "%{VARIABLE}v" logging parameter.

    *) Feature: the "set $name value" directive.

    *) Bugfix: gcc 4.0 compatibility.

    *) Feature: the --with-openssl-opt=OPTIONS autoconfiguration directive.
2005-03-19 12:38:37 +00:00

142 lines
2.5 KiB
C

/*
* Copyright (C) Igor Sysoev
*/
#include <ngx_config.h>
#include <ngx_core.h>
static void *ngx_regex_malloc(size_t size);
static void 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;
}
static void *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_regex_free(void *p)
{
return;
}