Updated embedded PCRE to version 7.4 to avoid 2 CVE issues:-

[exim.git] / src / src / pcre / pcre_study.c

diff --git a/src/src/pcre/pcre_study.c b/src/src/pcre/pcre_study.c
index ae312f27223ae7f0860f3cc9af8f5a5daa3b7a85..6848a196785105ccc675c0bd4b8d02db16d3865e 100644 (file)
--- a/src/src/pcre/pcre_study.c
+++ b/src/src/pcre/pcre_study.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/pcre/pcre_study.c,v 1.4 2007/01/23 15:08:45 ph10 Exp $ */
+/* $Cambridge: exim/src/src/pcre/pcre_study.c,v 1.6 2007/11/12 13:02:20 nm4 Exp $ */
 
 /*************************************************
 *      Perl-Compatible Regular Expressions       *
@@ -8,7 +8,7 @@
 and semantics are as close as possible to those of the Perl 5 language.
 
                        Written by Philip Hazel
-           Copyright (c) 1997-2006 University of Cambridge
+           Copyright (c) 1997-2007 University of Cambridge
 
 -----------------------------------------------------------------------------
 Redistribution and use in source and binary forms, with or without
@@ -44,6 +44,10 @@ POSSIBILITY OF SUCH DAMAGE.
 supporting functions. */
 
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
 #include "pcre_internal.h"
 
 
@@ -396,11 +400,13 @@ do
       character with a value > 255. */
 
       case OP_NCLASS:
+#ifdef SUPPORT_UTF8
       if (utf8)
         {
         start_bits[24] |= 0xf0;              /* Bits for 0xc4 - 0xc8 */
         memset(start_bits+25, 0xff, 7);      /* Bits for 0xc9 - 0xff */
         }
+#endif
       /* Fall through */
 
       case OP_CLASS:
@@ -413,6 +419,7 @@ do
         value is > 127. In fact, there are only two possible starting bytes for
         characters in the range 128 - 255. */
 
+#ifdef SUPPORT_UTF8
         if (utf8)
           {
           for (c = 0; c < 16; c++) start_bits[c] |= tcode[c];
@@ -430,6 +437,7 @@ do
         /* In non-UTF-8 mode, the two bit maps are completely compatible. */
 
         else
+#endif
           {
           for (c = 0; c < 32; c++) start_bits[c] |= tcode[c];
           }
@@ -489,7 +497,7 @@ Returns:    pointer to a pcre_extra block, with study_data filled in and the
             NULL on error or if no optimization possible
 */
 
-PCRE_DATA_SCOPE pcre_extra *
+PCRE_EXP_DEFN pcre_extra *
 pcre_study(const pcre *external_re, int options, const char **errorptr)
 {
 uschar start_bits[32];
@@ -521,7 +529,8 @@ code = (uschar *)re + re->name_table_offset +
 a multiline pattern that matches only at "line starts", no further processing
 at present. */
 
-if ((re->options & (PCRE_ANCHORED|PCRE_FIRSTSET|PCRE_STARTLINE)) != 0)
+if ((re->options & PCRE_ANCHORED) != 0 ||
+    (re->flags & (PCRE_FIRSTSET|PCRE_STARTLINE)) != 0)
   return NULL;
 
 /* Set the character tables in the block that is passed around */