fix the uninitialized value used in pattern match

Signed-off-by: wbq_sky <wangbingquan@huawei.com>

0005-uninitialized-value-used-in-pattern-compare.patch

@@ -0,0 +1,28 @@
+diff -Nur sqlite_before/src/func.c sqlite_after/src/func.c
+--- sqlite_before/src/func.c	2021-09-26 16:11:20.573041810 +0800
++++ sqlite_after/src/func.c	2021-09-26 16:16:56.535137866 +0800
+@@ -694,7 +694,8 @@
+       /* Skip over multiple "*" characters in the pattern.  If there
+       ** are also "?" characters, skip those as well, but consume a
+       ** single character of the input string for each "?" skipped */
+-      while( (c=Utf8Read(zPattern)) == matchAll || c == matchOne ){
++      while( (c=Utf8Read(zPattern)) == matchAll 
++             || (c == matchOne && matchOne!=0) ){
+         if( c==matchOne && sqlite3Utf8Read(&zString)==0 ){
+           return SQLITE_NOWILDCARDMATCH;
+         }
+diff -Nur sqlite_before/test/like.test sqlite_after/test/like.test
+--- sqlite_before/test/like.test	2021-09-26 16:11:20.561041592 +0800
++++ sqlite_after/test/like.test	2021-09-26 16:17:03.575265610 +0800
+@@ -1131,4 +1131,11 @@
+   SELECT id FROM t1 WHERE x LIKE 'abc__' ESCAPE '_';
+ } {2}
+ 
++# 2021-02-15 ticket c0aeea67d58ae0fd
++#
++do_execsql_test 17.1 {
++  SELECT 'x' LIKE '%' ESCAPE '_';
++} {1}
++
++
+ finish_test

sqlite.spec

@@ -6,7 +6,7 @@
 
 Name:    sqlite
 Version: 3.34.0
-Release: 3
+Release: 4
 Summary: Embeded SQL database
 License: Public Domain
 URL:     http://www.sqlite.org/
@@ -19,6 +19,7 @@ Patch1: 0001-sqlite-no-malloc-usable-size.patch
 Patch2: 0002-remove-fail-testcase-in-no-free-fd-situation.patch
 Patch3: 0003-infinite-loop-in-trim-function.patch
 Patch4: 0004-null-ref-in-trigger.patch
+Patch5: 0005-uninitialized-value-used-in-pattern-compare.patch
 
 BuildRequires: gcc autoconf tcl tcl-devel
 BuildRequires: ncurses-devel readline-devel glibc-devel
@@ -65,6 +66,7 @@ This contains man files and HTML files for the using of sqlite.
 %patch2 -p1
 %patch3 -p1
 %patch4 -p1
+%patch5 -p1
 
 rm -f %{name}-doc-%{extver}/sqlite.css~ || :
 
@@ -135,6 +137,9 @@ make test
 %{_mandir}/man*/*
 
 %changelog
+* Fri Sep 26 2021 wbq_sky <wangbingquan@huawei.com> - 3.34.0-4
+- fix the uninitialized value used in pattern match.
+
 * Fri Sep 3 2021 wbq_sky <wangbingquan@huawei.com> - 3.34.0-3
 - fix the null reference in the tigger statement.