void
network_printaddr(network_address_t addr)
{
char name[40];
network_format_address(addr, name, 40);
printf("%s", name);
}
int
network_initialize(interrupt_handler_t network_handler) {
int arg = 1;
/* initialise the NT socket library, inexplicably required by NT */
assert(WSAStartup(MAKEWORD(2, 0), &winsock_version_data) == 0);
if (atomic_test_and_set(&initialized)) {
return -1;
}
memset(&if_info, 0, sizeof(if_info));
if_info.sock = socket(PF_INET, SOCK_DGRAM, 0);
if (if_info.sock < 0) {
perror("socket");
return -1;
}
if_info.sin.sin_family = SOCK_DGRAM;
if_info.sin.sin_addr.s_addr = htonl(0);
if_info.sin.sin_port = htons(my_udp_port);
if (bind(if_info.sock, (struct sockaddr *) &if_info.sin,
sizeof(if_info.sin)) < 0) {
/* kprintf("Error: code %ld.\n", GetLastError());*/
AbortOnError(0);
perror("bind");
return -1;
}
/* set for fast reuse */
assert(setsockopt(if_info.sock, SOL_SOCKET, SO_REUSEADDR,
(char *) &arg, sizeof(int)) == 0);
if (BCAST_ENABLED){
if (BCAST_USE_TOPOLOGY_FILE){
bcast_initialize(BCAST_TOPOLOGY_FILE, &topology);
} else {
assert(setsockopt(if_info.sock, SOL_SOCKET, SO_BROADCAST,
(char *) &arg, sizeof(int)) == 0);
network_translate_hostname(BCAST_ADDRESS,broadcast_addr);
}
}
/*
* Print network information on the screen (mostly for Joranda).
*/
{
network_address_t my_address;
char my_hostname[256];
network_get_my_address(my_address);
network_format_address(my_address, my_hostname, 256);
kprintf("Hostname of local machine: %s.\n",my_hostname);
}
/*
* Interrupts are handled through the caller's handler.
*/
start_network_poll(network_handler, &if_info.sock);
return 0;
}
