Attachment 847611 Details for Bug 1048097 – Fix

[patch] Fix

pcre-8.34-Fix-range-check-in-JIT-path.patch (text/plain), 1.50 KB, created by Petr Pisar on 2014-01-09 12:50:39 UTC

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Creator: Petr Pisar

Created: 2014-01-09 12:50:39 UTC

Size: 1.50 KB

patch

obsolete

>From c061f6a865a473cf93aae1e6a0ccd2325509a6b2 Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com>
>Date: Thu, 9 Jan 2014 13:39:28 +0100
>Subject: [PATCH] Fix range check in JIT path
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>Jitted range check was wrong:
>
>  re> /[efij]/S+
>data> e
>No match
>
>while interpretted path is correct:
>
>  re> /[efij]/
>data> e
> 0: e
>
>This fix is part of:
>
>commit c07887b22a83fba842e88889c9e57a622b9ee439
>Author: zherczeg <zherczeg@2f5784b3-3f2a-0410-8824-cb99058d5e15>
>Date:   Sun Dec 22 20:47:08 2013 +0000
>
>    The auto-possessification of character sets were improved. The JIT compiler also optimizes more character set checks.
>
>    git-svn-id: svn://vcs.exim.org/pcre/code/trunk@1415 2f5784b3-3f2a-0410-8824-cb99058d5e15
>
><http://bugs.exim.org/show_bug.cgi?id=1423>
>
>Signed-off-by: Petr PÃsaÅ <ppisar@redhat.com>
>---
> pcre_jit_compile.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
>diff --git a/pcre_jit_compile.c b/pcre_jit_compile.c
>index d070263..47447da 100644
>--- a/pcre_jit_compile.c
>+++ b/pcre_jit_compile.c
>@@ -3573,7 +3573,9 @@ switch(ranges[0])
>       }
>     return TRUE;
>     }
>-  if ((ranges[3] - ranges[2]) == (ranges[5] - ranges[4]) && is_powerof2(ranges[4] - ranges[2]))
>+  if ((ranges[3] - ranges[2]) == (ranges[5] - ranges[4])
>+      && (ranges[2] | (ranges[4] - ranges[2])) == ranges[4]
>+      && is_powerof2(ranges[4] - ranges[2]))
>     {
>     if (readch)
>       read_char(common);
>-- 
>1.8.3.1
>

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