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Fix crash in DES_DECRYPT(NULL). (Bug #12757)

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sql/item_strfunc.cc:
  Don't call res->length() when res may be NULL because args[0] is a NULL.
This commit is contained in:
unknown 2005-08-25 12:34:42 -07:00
commit 6c555e7db5
1 changed files with 3 additions and 3 deletions
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2
sql/item_strfunc.cc
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@ -472,7 +472,7 @@ String *Item_func_des_decrypt::val_str(String *str)
struct st_des_keyblock keyblock; struct st_des_keyblock keyblock;
struct st_des_keyschedule keyschedule; struct st_des_keyschedule keyschedule;
String *res= args[0]->val_str(str); String *res= args[0]->val_str(str);
uint length=res->length(),tail; uint length,tail;
if ((null_value= args[0]->null_value)) if ((null_value= args[0]->null_value))
return 0; return 0;