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more sanity checks for compressed files, BUG#770

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unknown 2003-09-02 16:49:00 +02:00
commit 9de22b3637
1 changed files with 6 additions and 0 deletions
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6
myisam/mi_packrec.c
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@ -743,6 +743,12 @@ static void uf_blob(MI_COLUMNDEF *rec, MI_BIT_BUFF *bit_buff,
{
ulong length=get_bits(bit_buff,rec->space_length_bits);
uint pack_length=(uint) (end-to)-mi_portable_sizeof_char_ptr;
if (bit_buff->blob_pos+length > bit_buff->end)
{
bit_buff->error=1;
bzero((byte*) to,(end-to));
return;
}
decode_bytes(rec,bit_buff,bit_buff->blob_pos,bit_buff->blob_pos+length);
_my_store_blob_length((byte*) to,pack_length,length);
memcpy_fixed((char*) to+pack_length,(char*) &bit_buff->blob_pos,