diff options
Diffstat (limited to 'wsutil/inet_ipv4.h')
| -rw-r--r-- | wsutil/inet_ipv4.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/wsutil/inet_ipv4.h b/wsutil/inet_ipv4.h new file mode 100644 index 0000000000..9c1094f5af --- /dev/null +++ b/wsutil/inet_ipv4.h @@ -0,0 +1,44 @@ +/* inet_ipv4.h + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1998 Gerald Combs + * + * 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 the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#ifndef __INET_IPV4_H__ +#define __INET_IPV4_H__ + +#include <glib.h> + +typedef guint32 ws_in4_addr; /* 32 bit IPv4 address, in network byte order */ + +/** + * Unicast Local + * Returns true if the address is in the 224.0.0.0/24 local network + * control block + */ +#define in4_addr_is_local_network_control_block(addr) \ + ((addr & 0xffffff00) == 0xe0000000) + +/** + * Multicast + * Returns true if the address is in the 224.0.0.0/4 network block + */ +#define in4_addr_is_multicast(addr) \ + ((addr & 0xf0000000) == 0xe0000000) + +#endif |