-const char pcrs_rcs[] = "$Id: pcrs.c,v 1.42 2012/05/24 15:04:34 fabiankeil Exp $";
+const char pcrs_rcs[] = "$Id: pcrs.c,v 1.47 2015/01/24 16:40:59 fabiankeil Exp $";
/*********************************************************************
*
* File : $Source: /cvsroot/ijbswa/current/pcrs.c,v $
*********************************************************************/
const char *pcrs_strerror(const int error)
{
+ static char buf[100];
+
if (error != 0)
{
switch (error)
* version. If Privoxy is linked against a newer
* PCRE version all bets are off ...
*/
- default: return "Unknown error. Privoxy out of sync with PCRE?";
+ default:
+ snprintf(buf, sizeof(buf),
+ "Error code %d. For details, check the pcre documentation.",
+ error);
+ return buf;
}
}
/* error >= 0: No error */
if (replacement[i] == '$' && !quoted && i < (int)(length - 1))
{
char *symbol, symbols[] = "'`+&";
+ if (l >= PCRS_MAX_SUBMATCHES)
+ {
+ freez(text);
+ freez(r);
+ *errptr = PCRS_WARN_BADREF;
+ return NULL;
+ }
r->block_length[l] = (size_t)(k - r->block_offset[l]);
/* Numerical backreferences */
}
if (r->backref[l] > capturecount)
{
+ freez(text);
+ freez(r);
*errptr = PCRS_WARN_BADREF;
+ return NULL;
}
}
}
/* Valid and in range? -> record */
- if (r->backref[l] < PCRS_MAX_SUBMATCHES + 2)
+ if (0 <= r->backref[l] && r->backref[l] < PCRS_MAX_SUBMATCHES + 2)
{
r->backref_count[r->backref[l]] += 1;
r->block_offset[++l] = k;
}
else
{
+ freez(text);
+ freez(r);
*errptr = PCRS_WARN_BADREF;
+ return NULL;
}
continue;
}
* 1 : job = the pcrs_job to be executed
* 2 : subject = the subject (== original) string
* 3 : subject_length = the subject's length
- * 4 : result = char** for returning the result
+ * 4 : result = char** for returning the result (NULL on error)
* 5 : result_length = size_t* for returning the result's length
*
* Returns : On success, the number of substitutions that were made.
char *result_offset;
offset = i = 0;
+ *result = NULL;
/*
* Sanity check & memory allocation
*/
if (job == NULL || job->pattern == NULL || job->substitute == NULL || NULL == subject)
{
- *result = NULL;
return(PCRS_ERR_BADJOB);
}
if (NULL == (matches = (pcrs_match *)malloc((size_t)max_matches * sizeof(pcrs_match))))
{
- *result = NULL;
return(PCRS_ERR_NOMEM);
}
memset(matches, '\0', (size_t)max_matches * sizeof(pcrs_match));
if (NULL == (dummy = (pcrs_match *)realloc(matches, (size_t)max_matches * sizeof(pcrs_match))))
{
free(matches);
- *result = NULL;
return(PCRS_ERR_NOMEM);
}
matches = dummy;
else
offset = offsets[1];
}
- /* Pass pcre error through if (bad) failiure */
+ /* Pass pcre error through if (bad) failure */
if (submatches < PCRE_ERROR_NOMATCH)
{
free(matches);
{
/* No proper delimiter found */
*error = PCRS_ERR_CMDSYNTAX;
+ freez(pcrs_command_tmp);
return NULL;
}