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Bug #59884: setting charset to 2048 crashes

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The retrieval of a charset by number was not
doing bounds checking before accessing the internal 
character sets array.
Added checks for valid charset number.
Added asserts for valid charset number to some of 
the internal functions.
Removed one superfluous check for charset_number 0
(since the all_charsets_array[0] is set to 0 anyway) for 
uniformity.
Test suite added.
This commit is contained in:
Georgi Kodinov
2011-02-10 09:34:22 +02:00
parent cb6b340b0f
commit 64c82a68cc
3 changed files with 61 additions and 7 deletions
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22
mysql-test/r/variables.result
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@ -1732,3 +1732,25 @@ set @@session.autocommit=t1_min(), @@session.autocommit=t1_max(),
drop table t1;
drop function t1_min;
drop function t1_max;
#
# Bug #59884: setting charset to 2048 crashes
#
set session character_set_results = 2048;
ERROR 42000: Unknown character set: '2048'
set session character_set_client=2048;
ERROR 42000: Unknown character set: '2048'
set session character_set_connection=2048;
ERROR 42000: Unknown character set: '2048'
set session character_set_server=2048;
ERROR 42000: Unknown character set: '2048'
set session collation_server=2048;
ERROR HY000: Unknown collation: '2048'
set session character_set_filesystem=2048;
ERROR 42000: Unknown character set: '2048'
set session character_set_database=2048;
ERROR 42000: Unknown character set: '2048'
set session collation_connection=2048;
ERROR HY000: Unknown collation: '2048'
set session collation_database=2048;
ERROR HY000: Unknown collation: '2048'
End of 5.5 tests