1 int main(int argc, char *argv[])
4 int i, n, len, verbose=0;
5 struct sockaddr_in addr;
10 if ( (sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
11 perror("Socket creation error");
14 /* initialize address */
15 memset((void *)&addr, 0, sizeof(addr)); /* clear server address */
16 addr.sin_family = AF_INET; /* address type is INET */
17 addr.sin_port = htons(13); /* daytime port is 13 */
18 addr.sin_addr.s_addr = htonl(INADDR_ANY); /* connect from anywhere */
20 if (bind(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
24 /* write daytime to client */
26 n = recvfrom(sock, buffer, MAXLINE, 0, (struct sockaddr *)&addr, &len);
28 perror("recvfrom error");
32 inet_ntop(AF_INET, &addr.sin_addr, buffer, sizeof(buffer));
33 printf("Request from host %s, port %d\n", buffer,
34 ntohs(addr.sin_port));
37 snprintf(buffer, sizeof(buffer), "%.24s\r\n", ctime(&timeval));
38 n = sendto(sock, buffer, strlen(buffer), 0,
39 (struct sockaddr *)&addr, sizeof(addr));
41 perror("sendto error");