static void do_tcp_server_start(void) {
int result;
tuvp_tcp_init();
ip4_addr("0.0.0.0", tuvp_htons(SOCKET_TEST_PORT), &_addr_in);
_sock_server = tuvp_socket(AF_INET, SOCK_STREAM, 0);
result = tuvp_bind(_sock_server,
(const struct sockaddr*)&_addr_in,
sizeof(_addr_in));
if (result != 0) {
printf("!! tuvp_bind failed (%d)\r\n", result);
return;
}
result = tuvp_listen(_sock_server, SOMAXCONN);
if (result != 0) {
printf("!! tuvp_listen failed (%d)\r\n", result);
return;
}
printf(".. echo server started at ");
dump_socket_info(_sock_server);
printf("\r\n");
printf(".. use 'telnet' to test, manually\r\n");
}
bool ip_union::is_rfc1918() const
{
if(is_ip4map6()) {
uint32_t ip4 = ip4_addr();
if((ip4 & htonl(0xff000000)) == htonl(0x0a000000)) // 10.0.0.0/8
return true;
if((ip4 & htonl(0xfff00000)) == htonl(0xac100000)) // 172.16.0.0/12
return true;
if((ip4 & htonl(0xffff0000)) == htonl(0xc0a80000)) // 192.168.0.0/16
return true;
}
return false;
}
int ip4_netmask(char *addr)
{
char* slash;
slash = strchr(addr, '/');
if (slash) {
return atoi(slash + 1);
} else {
switch ((ip4_addr(addr) & 192)) {
case 0:
case 1:
return 8;
case 128:
return 16;
default:
return 24;
}
}
}
bool ip_union::is_link_local() const
{
if((ip4_mapped[0] & htonl(0xFFC00000)) == htonl(0xFE800000)) // IPv6 link local
return true;
return is_ip4map6() && ((ip4_addr() & htonl(0xFFFF0000)) == htonl(0xA9FE0000)); // IPv4 link local
}
