name icmp type win32 debug_channels (icmp) @ stdcall IcmpCloseHandle(ptr) IcmpCloseHandle @ stdcall IcmpCreateFile() IcmpCreateFile @ stub IcmpParseReplies @ stdcall IcmpSendEcho(ptr long ptr long ptr ptr long long) IcmpSendEcho @ stub IcmpSendEcho2 @ stub do_echo_rep @ stub do_echo_req @ stub register_icmp