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MDEV-7019 String::chop() is wrong and may potentially crash (MySQL bug#56492)

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Merging a fix from the upstream.
This commit is contained in:
Alexander Barkov
2014-11-10 18:08:17 +04:00
parent 2da6f7ceba
commit b84a892fb2
1 changed files with 3 additions and 1 deletions
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4
sql/sql_string.h
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@ -232,7 +232,9 @@ public:
*/ */
inline void chop() inline void chop()
{ {
Ptr[str_length--]= '\0'; str_length--;
Ptr[str_length]= '\0';
DBUG_ASSERT(strlen(Ptr) == str_length);
} }
inline void free() inline void free()