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Fix for bug #31069: crash in 'sounds like'

and for bug #31070: crash during conversion of charsets

Problem: passing a 0 byte length string to some my_mb_wc_XXX() 
functions leads to server crash due to improper argument check.

Fix: properly check arguments passed to my_mb_wc_XXX() functions.


mysql-test/include/ctype_common.inc:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - test case.
mysql-test/r/ctype_big5.result:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - test result.
mysql-test/r/ctype_euckr.result:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - test result.
mysql-test/r/ctype_gb2312.result:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - test result.
mysql-test/r/ctype_gbk.result:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - test result.
mysql-test/r/ctype_uca.result:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - test result.
strings/ctype-big5.c:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - check the string length before testing its first byte.
strings/ctype-cp932.c:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - check the string length before testing its first byte.
strings/ctype-euc_kr.c:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - check the string length before testing its first byte.
strings/ctype-gb2312.c:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - check the string length before testing its first byte.
strings/ctype-sjis.c:
  Fix for bug #31069: crash in 'sounds like'
  and bug #31070: crash during conversion of charsets
    - check the string length before testing its first byte.
This commit is contained in:
unknown
2007-10-04 10:20:00 +05:00
parent 7a2bb241bd
commit db2d3104f9
11 changed files with 73 additions and 11 deletions

View File

@ -51,6 +51,15 @@ SELECT c1 as want1result from t1 where c1 like 'locatio%';
SELECT c1 as want1result from t1 where c1 like 'location%';
DROP TABLE t1;
#
# Bug #31070: crash during conversion of charsets
#
create table t1 (a set('a') not null);
insert into t1 values (),();
select cast(a as char(1)) from t1;
select a sounds like a from t1;
drop table t1;
DROP DATABASE d1;
# Restore settings
USE test;