1 #include "unp.h"
2 #include <time.h>
3
4 int
main(int argc,char ** argv)5 main(int argc, char **argv)
6 {
7 int listenfd, connfd;
8 socklen_t len;
9 struct sockaddr_in servaddr, cliaddr;
10 char buff[MAXLINE];
11 time_t ticks;
12
13 listenfd = Socket(AF_INET, SOCK_STREAM, 0);
14
15 bzero(&servaddr, sizeof(servaddr));
16 servaddr.sin_family = AF_INET;
17 servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
18 servaddr.sin_port = htons(13); /* daytime server */
19
20 Bind(listenfd, (SA *) &servaddr, sizeof(servaddr));
21
22 Listen(listenfd, LISTENQ);
23
24 for ( ; ; ) {
25 len = sizeof(cliaddr);
26 connfd = Accept(listenfd, (SA *) &cliaddr, &len);
27 printf("connection from %s, port %d\n",
28 Inet_ntop(AF_INET, &cliaddr.sin_addr, buff, sizeof(buff)),
29 ntohs(cliaddr.sin_port));
30
31 ticks = time(NULL);
32 snprintf(buff, sizeof(buff), "%.24s\r\n", ctime(&ticks));
33 Write(connfd, buff, strlen(buff));
34
35 Close(connfd);
36 }
37 }
38