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Bug#58175 xml functions read initialized bytes when conversions happen

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Problem:

 nr_of_decimals could read behind the end of the buffer
 in case of a non-null-terminated string, which caused
 valgring warnings.

Fix:

  fixing nr_of_decimals not to read behind the "end" pointer.

modified:

  @ mysql-test/r/xml.result
  @ mysql-test/t/xml.test
  @ sql/item.cc
This commit is contained in:
Alexander Barkov
2010-11-19 18:24:29 +03:00
parent 1ab1cb8a77
commit 677639f46a
3 changed files with 47 additions and 2 deletions
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15
mysql-test/t/xml.test
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@ -628,3 +628,18 @@ SELECT EXTRACTVALUE('', LPAD(0.1111E-15, '2011', 1));
--echo End of 5.1 tests
--echo #
--echo # Start of 5.5 tests
--echo #
--echo #
--echo # Bug#58175 xml functions read initialized bytes when conversions happen
--echo #
SET NAMES latin1;
SELECT UPDATEXML(CONVERT('' USING swe7), TRUNCATE('',1), 0);
--echo #
--echo # End of 5.5 tests
--echo #