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Bug#31081 server crash in regexp function

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Problem: The "regex" library written by Henry Spencer
does not support tricky character sets like UCS2.
Fix: convert tricky character sets to UTF8 before calling
regex functions.


mysql-test/r/ctype_uca.result:
  Adding tests
mysql-test/r/ctype_ucs.result:
  Adding tests
mysql-test/r/ctype_utf8.result:
  Adding tests
mysql-test/r/func_regexp.result:
  Adding tests
mysql-test/t/ctype_uca.test:
  Adding tests
mysql-test/t/ctype_ucs.test:
  Adding tests
mysql-test/t/ctype_utf8.test:
  Adding tests
mysql-test/t/func_regexp.test:
  Adding tests
sql/item_cmpfunc.cc:
  - Adding new method Item_func_regex::regcomp()
  to share more code between fix_fields() and val_int()
  - Adding conversion from ASCII-incompatible charsets like UCS2
  to UTF8, because the "regexp" does not support these charsets
  - Additional optimization: calculate flags for regcomp only
    once in fix_fields, instead of every regcomp()
sql/item_cmpfunc.h:
  Adding prototypes for new members and methods
mysql-test/include/ctype_regex.inc:
  New BitKeeper file ``mysql-test/include/ctype_regex.inc''
  
  Moving common regular expression tests into a separate
  file and uncluding it into func_regexp and into many ctype_xxx tests.
This commit is contained in:
unknown
2007-10-05 12:15:11 +05:00
parent 4e331363cf
commit 64b1913382
11 changed files with 283 additions and 72 deletions
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23
mysql-test/t/func_regexp.test
View File

@@ -6,28 +6,9 @@
drop table if exists t1;
--enable_warnings
create table t1 (s1 char(64),s2 char(64));
set names latin1;
--source include/ctype_regex.inc
insert into t1 values('aaa','aaa');
insert into t1 values('aaa|qqq','qqq');
insert into t1 values('gheis','^[^a-dXYZ]+$');
insert into t1 values('aab','^aa?b');
insert into t1 values('Baaan','^Ba*n');
insert into t1 values('aaa','qqq|aaa');
insert into t1 values('qqq','qqq|aaa');
insert into t1 values('bbb','qqq|aaa');
insert into t1 values('bbb','qqq');
insert into t1 values('aaa','aba');
insert into t1 values(null,'abc');
insert into t1 values('def',null);
insert into t1 values(null,null);
insert into t1 values('ghi','ghi[');
select HIGH_PRIORITY s1 regexp s2 from t1;
drop table t1;
#
# This test a bug in regexp on Alpha