Beispiel #1
0
void
server_main(int ac, char **av)
{
	int     newsock, sock;

	if (ac != 2) {
		fprintf(stderr, "usage: %s -s\n", av[0]);
		exit(1);
	}
	GO_AWAY;
	signal(SIGCHLD, child);
	sock = tcp_server(TCP_XACT, SOCKOPT_NONE);
	for (;;) {
		newsock = tcp_accept(sock, SOCKOPT_NONE);
		switch (fork()) {
		    case -1:
			perror("fork");
			break;
		    case 0:
			doserver(newsock);
			exit(0);
		    default:
			close(newsock);
			break;
		}
	}
	/* NOTREACHED */
}
Beispiel #2
0
void
server_main()
{
	int     newsock, sock;

	GO_AWAY;
	signal(SIGCHLD, sigchld_wait_handler);
	sock = tcp_server(TCP_XACT, SOCKOPT_REUSE);
	for (;;) {
		newsock = tcp_accept(sock, SOCKOPT_NONE);
#ifdef CONFIG_NOMMU
		switch (vfork()) {
#else
		switch (fork()) {
#endif
		    case -1:
			perror("fork");
			break;
		    case 0:
			doserver(newsock);
#ifdef CONFIG_NOMMU
			_exit(0);
#else
			exit(0);
#endif
		    default:
			close(newsock);
			break;
		}
	}
	/* NOTREACHED */
}

void
doserver(int sock)
{
	int	n;

	if (read(sock, &n, sizeof(int)) == sizeof(int)) {
		int	msize = ntohl(n);
		char*   buf = (char*)malloc(msize);

		for (n = 0; read(sock, buf, msize) > 0; n++) {
			write(sock, buf, msize);
		}
		free(buf);
	} else {
		/*
		 * A connection with no data means shut down.
		 */
		tcp_done(TCP_XACT);
		kill(getppid(), SIGTERM);
		exit(0);
	}
}