#include "unp.h" #include int main(int argc, char **argv) { int i, listenfd, connfd; socklen_t addrlen, len; struct sockaddr *cliaddr; char buff[MAXLINE]; time_t ticks; if (argc == 2) listenfd = Tcp_listen(NULL, argv[1], &addrlen); else if (argc == 3) listenfd = Tcp_listen(argv[1], argv[2], &addrlen); else err_quit("usage: daytimetcpsrv2 [ ] "); cliaddr = Malloc(addrlen); for ( ; ; ) { len = addrlen; connfd = Accept(listenfd, cliaddr, &len); printf("connection from %s\n", Sock_ntop(cliaddr, len)); ticks = time(NULL); snprintf(buff, sizeof(buff), "%.24s\r\n", ctime(&ticks)); for (i = 0; i < strlen(buff); i++) Send(connfd, &buff[i], 1, MSG_EOR); Close(connfd); } }