int get_host_ipstring(LPWSTR ip_string) { struct hostent * Host; char hostname[512]; if (gethostname(hostname, 512) != 0) { return -1; } Host = gethostbyname(hostname); if (Host == NULL) { return -1; } if (Host->h_addrtype == AF_INET) { int i = 0; struct in_addr addr; while (Host->h_addr_list[i] != 0) { addr.s_addr = *(u_long *) Host->h_addr_list[i++]; char* p; p = inet_ntoa(addr); if (p == NULL) { return -1; } //DO SOMETHING } } else { return -1; } }