UNIX网络编程学习（3）--简单时间获取服务器程序

#include	"unp.h"
#include	<time.h>

int
main(int argc, char **argv)
{
int					listenfd, connfd;
struct sockaddr_in	servaddr;
char				buff[MAXLINE];
time_t				ticks;

listenfd = Socket(AF_INET, SOCK_STREAM, 0);

bzero(&servaddr, sizeof(servaddr));
servaddr.sin_family      = AF_INET;
servaddr.sin_addr.s_addr = htonl(INADDR_ANY);
servaddr.sin_port        = htons(10086);	/* daytime server */

Bind(listenfd, (SA *) &servaddr, sizeof(servaddr));

Listen(listenfd, LISTENQ);

for ( ; ; ) {
connfd = Accept(listenfd, (SA *) NULL, NULL);

ticks = time(NULL);
snprintf(buff, sizeof(buff), "%.24s\r\n", ctime(&ticks));
Write(connfd, buff, strlen(buff));

Close(connfd);
}
}

void
Bind(int fd, const struct sockaddr *sa, socklen_t salen)
{
if (bind(fd, sa, salen) < 0)
err_sys("bind error");
}

void
Connect(int fd, const struct sockaddr *sa, socklen_t salen)
{
if (connect(fd, sa, salen) < 0)
err_sys("connect error");
}

void
Getpeername(int fd, struct sockaddr *sa, socklen_t *salenptr)
{
if (getpeername(fd, sa, salenptr) < 0)
err_sys("getpeername error");
}