pcre2/pcre2-10.31-Set-error-offset-zero-for-early-errors-in-pcre2_patt.patch

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From c82ef7bef66138a85362473df622d16bf728499e Mon Sep 17 00:00:00 2001
From: ph10 <ph10@6239d852-aaf2-0410-a92c-79f79f948069>
Date: Sun, 4 Mar 2018 15:13:37 +0000
Subject: [PATCH] Set error offset zero for early errors in
pcre2_pattern_convert().
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@926 6239d852-aaf2-0410-a92c-79f79f948069
Petr Písař: Ported to 10.31.
---
src/pcre2_convert.c | 12 +++++++++---
diff --git a/src/pcre2_convert.c b/src/pcre2_convert.c
index bdf9b86..1dd5c33 100644
--- a/src/pcre2_convert.c
+++ b/src/pcre2_convert.c
@@ -7,7 +7,7 @@ and semantics are as close as possible to those of the Perl 5 language.
Written by Philip Hazel
Original API code Copyright (c) 1997-2012 University of Cambridge
- New API code Copyright (c) 2016-2017 University of Cambridge
+ New API code Copyright (c) 2016-2018 University of Cambridge
-----------------------------------------------------------------------------
Redistribution and use in source and binary forms, with or without
@@ -1066,11 +1066,12 @@ BOOL utf = (options & PCRE2_CONVERT_UTF) != 0;
uint32_t pattype = options & TYPE_OPTIONS;
if (pattern == NULL || bufflenptr == NULL) return PCRE2_ERROR_NULL;
+
if ((options & ~ALL_OPTIONS) != 0 || /* Undefined bit set */
(pattype & (~pattype+1)) != pattype || /* More than one type set */
pattype == 0) /* No type set */
{
- *bufflenptr = 0; /* Error offset */
+ *bufflenptr = 0; /* Error offset */
return PCRE2_ERROR_BADOPTION;
}
@@ -1081,7 +1082,11 @@ if (ccontext == NULL) ccontext =
/* Check UTF if required. */
#ifndef SUPPORT_UNICODE
-if (utf) return PCRE2_ERROR_UNICODE_NOT_SUPPORTED;
+if (utf)
+ {
+ *bufflenptr = 0; /* Error offset */
+ return PCRE2_ERROR_UNICODE_NOT_SUPPORTED;
+ }
#else
if (utf && (options & PCRE2_CONVERT_NO_UTF_CHECK) == 0)
{
@@ -1126,6 +1131,7 @@ for (i = 0; i < 2; i++)
break;
default:
+ *bufflenptr = 0; /* Error offset */
return PCRE2_ERROR_INTERNAL;
}
--
2.14.3