#include "unp.h" int main(int argc, char **argv) { int sockfd; socklen_t salen; struct sockaddr *sa; if (argc != 3) err_quit("usage: udpcli02 "); sockfd = Udp_client(argv[1], argv[2], (void **) &sa, &salen); dg_cli(stdin, sockfd, sa, salen); exit(0); }