Author: rjung
Date: Tue Jan 19 19:28:37 2016
New Revision: 1725598
URL: http://svn.apache.org/viewvc?rev=1725598&view=rev
Log:
Further simplify PCRE handling code
to ease migrating to PCRE2.
Modified:
tomcat/jk/trunk/native/iis/jk_isapi_plugin.c
Modified: tomcat/jk/trunk/native/iis/jk_isapi_plugin.c
URL:
http://svn.apache.org/viewvc/tomcat/jk/trunk/native/iis/jk_isapi_plugin.c?rev=1725598&r1=1725597&r2=1725598&view=diff
==============================================================================
--- tomcat/jk/trunk/native/iis/jk_isapi_plugin.c (original)
+++ tomcat/jk/trunk/native/iis/jk_isapi_plugin.c Tue Jan 19 19:28:37 2016
@@ -1519,14 +1519,6 @@ BOOL WINAPI GetFilterVersion(PHTTP_FILTE
/** The max number of regex captures that can be expanded by ap_pregsub */
#define AP_MAX_REG_MATCH 10
-/* Error values: */
-enum {
- AP_REG_ASSERT = 1, /** internal error ? */
- AP_REG_ESPACE, /** failed to get memory */
- AP_REG_INVARG, /** invalid argument */
- AP_REG_NOMATCH /** match failed */
-};
-
/* The structure representing a compiled regular expression. */
typedef struct {
void *re_pcre;
@@ -1540,9 +1532,6 @@ typedef struct {
} ap_regmatch_t;
-/* Table of error strings corresponding to POSIX error codes; must be
- * kept in synch with include/ap_regex.h's AP_REG_E* definitions. */
-
/*************************************************
* Free store held by a regex *
*************************************************/
@@ -1562,8 +1551,8 @@ Arguments:
preg points to a structure for recording the compiled expression
pattern the pattern to compile
-Returns: 0 on success
- various non-zero codes on failure
+Returns: JK_TRUE on success
+ JK_FALSE on failure
*/
static int ap_regcomp(ap_regex_t *preg, const char *pattern)
@@ -1574,9 +1563,9 @@ static int ap_regcomp(ap_regex_t *preg,
preg->re_pcre = pcre_compile(pattern, 0, &errorptr, &erroffset, NULL);
if (preg->re_pcre == NULL)
- return AP_REG_INVARG;
+ return JK_FALSE;
- return 0;
+ return JK_TRUE;
}
/*************************************************
@@ -1605,7 +1594,7 @@ static int ap_regexec(const ap_regex_t *
else {
ovector = (int *)malloc(sizeof(int) * nmatch * 3);
if (ovector == NULL)
- return AP_REG_ESPACE;
+ return -1;
allocated_ovector = 1;
}
}
@@ -1622,45 +1611,12 @@ static int ap_regexec(const ap_regex_t *
pmatch[i].rm_so = ovector[i*2];
pmatch[i].rm_eo = ovector[i*2+1];
}
- if (allocated_ovector)
- free(ovector);
for (; i < nmatch; i++)
pmatch[i].rm_so = pmatch[i].rm_eo = -1;
- return 0;
- }
- else {
- if (allocated_ovector)
- free(ovector);
- switch(rc) {
- case PCRE_ERROR_NOMATCH:
- return AP_REG_NOMATCH;
- case PCRE_ERROR_NULL:
- return AP_REG_INVARG;
- case PCRE_ERROR_BADOPTION:
- return AP_REG_INVARG;
- case PCRE_ERROR_BADMAGIC:
- return AP_REG_INVARG;
- case PCRE_ERROR_UNKNOWN_NODE:
- return AP_REG_ASSERT;
- case PCRE_ERROR_NOMEMORY:
- return AP_REG_ESPACE;
-#ifdef PCRE_ERROR_MATCHLIMIT
- case PCRE_ERROR_MATCHLIMIT:
- return AP_REG_ESPACE;
-#endif
-#ifdef PCRE_ERROR_BADUTF8
- case PCRE_ERROR_BADUTF8:
- return AP_REG_INVARG;
-#endif
-#ifdef PCRE_ERROR_BADUTF8_OFFSET
- case PCRE_ERROR_BADUTF8_OFFSET:
- return AP_REG_INVARG;
-#endif
- default:
- break;
- }
}
- return AP_REG_ASSERT;
+ if (allocated_ovector)
+ free(ovector);
+ return rc;
}
/* This function substitutes for $0-$9, filling in regular expression
@@ -1678,13 +1634,13 @@ static int ap_regexec(const ap_regex_t *
*/
static char *ap_pregsub(const char *input,
- const char *source, size_t nmatch,
+ const char *source, int nmatch,
ap_regmatch_t pmatch[])
{
const char *src = input;
char *dest, *dst;
char c;
- size_t no;
+ int no;
int len;
if (!source)
@@ -1764,15 +1720,20 @@ static char *simple_rewrite(jk_pool_t *p
static char *rregex_rewrite(jk_pool_t *p, const char *uri)
{
+ int nmatch;
ap_regmatch_t regm[AP_MAX_REG_MATCH];
if (rregexp_map) {
int i;
for (i = 0; i < jk_map_size(rregexp_map); i++) {
ap_regex_t *regexp = (ap_regex_t *)jk_map_value_at(rregexp_map, i);
- if (!ap_regexec(regexp, uri, AP_MAX_REG_MATCH, regm)) {
- char *subs = ap_pregsub(regexp->fake, uri,
- AP_MAX_REG_MATCH, regm);
+ nmatch = ap_regexec(regexp, uri, AP_MAX_REG_MATCH, regm);
+ if (nmatch > 0) {
+ char *subs;
+ if (nmatch > AP_MAX_REG_MATCH) {
+ nmatch = AP_MAX_REG_MATCH;
+ }
+ subs = ap_pregsub(regexp->fake, uri, nmatch, regm);
if (subs) {
char *buf, *ptr;
size_t orgsz = strlen(uri);
@@ -2706,7 +2667,7 @@ static int init_jk(char *serverName)
/* Skip leading tilde */
src++;
regexp->fake = val;
- if (!ap_regcomp(regexp, src) {
+ if (ap_regcomp(regexp, src) == JK_TRUE) {
jk_map_add(rregexp_map, src, regexp);
if (JK_IS_DEBUG_LEVEL(logger)) {
jk_log(logger, JK_LOG_DEBUG,
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