Load pcre-2.02 into code/trunk.

git-svn-id: svn://vcs.exim.org/pcre/code/trunk@27 2f5784b3-3f2a-0410-8824-cb99058d5e15

1 files changed, 12 insertions, 1 deletions

diff --git a/pcre.c b/pcre.c
index bc09a47..320b8e2 100644
--- a/pcre.c
+++ b/pcre.c
@@ -9,7 +9,7 @@ the file Tech.Notes for some information on the internals.
 
 Written by: Philip Hazel <ph10@cam.ac.uk>
 
-           Copyright (c) 1998 University of Cambridge
+           Copyright (c) 1997-1999 University of Cambridge
 
 -----------------------------------------------------------------------------
 Permission is granted to anyone to use this software for any purpose on any
@@ -4033,6 +4033,17 @@ in the pattern. */
 resetcount = 2 + re->top_bracket * 2;
 if (resetcount > offsetcount) resetcount = ocount;
 
+/* Reset the working variable associated with each extraction. These should
+never be used unless previously set, but they get saved and restored, and so we
+initialize them to avoid reading uninitialized locations. */
+
+if (match_block.offset_vector != NULL)
+  {
+  register int *iptr = match_block.offset_vector + ocount;
+  register int *iend = iptr - resetcount/2 + 1;
+  while (--iptr >= iend) *iptr = -1;
+  }
+
 /* Set up the first character to match, if available. The first_char value is
 never set for an anchored regular expression, but the anchoring may be forced
 at run time, so we have to test for anchoring. The first char may be unset for