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Fixed bug #32034: On 64bit platforms assigning values of

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storage engine system variables was not validated and
unexpected value was assigned.

The check_func_enum function used subtraction from the uint
value with the probably negative result. That result of
type uint was compared with 0 after casting to signed long
type. On architectures where long type is longer than int
type the result of comparison was unexpected.
This commit is contained in:
gshchepa/uchum@gleb.loc
2007-11-14 13:48:21 +04:00
parent 19c3bd89f8
commit 70f36562bc
4 changed files with 55 additions and 2 deletions
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10
mysql-test/r/plugin.result
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@ -17,3 +17,13 @@ UNINSTALL PLUGIN EXAMPLE;
ERROR 42000: PLUGIN EXAMPLE does not exist
UNINSTALL PLUGIN non_exist;
ERROR 42000: PLUGIN non_exist does not exist
#
# Bug#32034: check_func_enum() does not check correct values but set it
# to impossible int val
#
INSTALL PLUGIN example SONAME 'ha_example.so';
SET GLOBAL example_enum_var= e1;
SET GLOBAL example_enum_var= e2;
SET GLOBAL example_enum_var= impossible;
ERROR 42000: Variable 'enum_var' can't be set to the value of 'impossible'
UNINSTALL PLUGIN example;