diff options
Diffstat (limited to 'client/sql_string.cc')
| -rw-r--r-- | client/sql_string.cc | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/client/sql_string.cc b/client/sql_string.cc index 6b749409a64..dec6ac94eb2 100644 --- a/client/sql_string.cc +++ b/client/sql_string.cc @@ -31,9 +31,12 @@ ** String functions *****************************************************************************/ -bool String::real_alloc(uint32 arg_length) +bool String::real_alloc(uint32 length) { - arg_length=ALIGN_SIZE(arg_length+1); + uint32 arg_length= ALIGN_SIZE(length + 1); + DBUG_ASSERT(arg_length > length); + if (arg_length <= length) + return TRUE; /* Overflow */ str_length=0; if (Alloced_length < arg_length) { @@ -56,6 +59,9 @@ bool String::real_alloc(uint32 arg_length) bool String::realloc(uint32 alloc_length) { uint32 len=ALIGN_SIZE(alloc_length+1); + DBUG_ASSERT(len > alloc_length); + if (len <= alloc_length) + return TRUE; /* Overflow */ if (Alloced_length < len) { char *new_ptr; |