diff options
Diffstat (limited to 'sql/protocol.cc')
| -rw-r--r-- | sql/protocol.cc | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sql/protocol.cc b/sql/protocol.cc index 947ddd33d4c..aa9651e974c 100644 --- a/sql/protocol.cc +++ b/sql/protocol.cc @@ -1,5 +1,5 @@ /* Copyright (c) 2000, 2012, Oracle and/or its affiliates. - Copyright (c) 2008, 2012, Monty Program Ab + Copyright (c) 2008, 2020, MariaDB Corporation. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -58,7 +58,8 @@ bool Protocol_binary::net_store_data(const uchar *from, size_t length) packet->realloc(packet_length+9+length)) return 1; uchar *to= net_store_length((uchar*) packet->ptr()+packet_length, length); - memcpy(to,from,length); + if (length) + memcpy(to,from,length); packet->length((uint) (to+length-(uchar*) packet->ptr())); return 0; } @@ -734,7 +735,8 @@ void net_send_progress_packet(THD *thd) uchar *net_store_data(uchar *to, const uchar *from, size_t length) { to=net_store_length_fast(to,length); - memcpy(to,from,length); + if (length) + memcpy(to,from,length); return to+length; } |