You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
echoping/SRC/ttcp/ttcpcliserv/ttcpserv.c

49 lines
1.3 KiB
C

/*
* Copyright (c) 1996 W. Richard Stevens. All rights reserved.
* Permission to use or modify this software and its documentation only for
* educational purposes and without fee is hereby granted, provided that
* the above copyright notice appear in all copies. The author makes no
* representations about the suitability of this software for any purpose.
* It is provided "as is" without express or implied warranty.
*/
#include "cliserv.h"
int
main() /* T/TCP server */
{
struct sockaddr_in serv, cli;
char request[REQUEST], reply[REPLY];
int listenfd, sockfd, n, clilen;
if ( (listenfd = socket(PF_INET, SOCK_STREAM, 0)) < 0)
err_sys("socket error");
memset(&serv, 0, sizeof(serv));
serv.sin_family = AF_INET;
serv.sin_addr.s_addr = htonl(INADDR_ANY);
serv.sin_port = htons(TCP_SERV_PORT);
if (bind(listenfd, (SA) &serv, sizeof(serv)) < 0)
err_sys("bind error");
if (listen(listenfd, SOMAXCONN) < 0)
err_sys("listen error");
for ( ; ; ) {
clilen = sizeof(cli);
if ( (sockfd = accept(listenfd, (SA) &cli, &clilen)) < 0)
err_sys("accept error");
if ( (n = read_stream(sockfd, request, REQUEST)) < 0)
err_sys("read error");
/* process "n" bytes of request[] and create reply[] ... */
if (send(sockfd, reply, REPLY, MSG_EOF) != REPLY)
err_sys("send error");
close(sockfd);
}
}