1 /*
2 * UNET (3Com) TCP-IP server for uucico.
3 * uucico's UNET channel causes this server to be run at the remote end.
4 * An argument, if present, is the local port number.
5 * This server does a tcpopen(III) to establish the connection,
6 * renames file descriptors 0,1, and 2 to be the UNET connection,
7 * and then exec(II)s uucico.
8 */
9
10 #include <stdio.h>
11 #include <UNET/unetio.h>
12 #include <UNET/tcp.h>
13
14 /* Default port of uucico server */
15 #define DFLTPORT 33
16
main(argc,argv)17 main(argc, argv)
18 int argc;
19 char **argv;
20 {
21 register int lport, fd;
22 register FILE *fp;
23 extern int errno;
24
25 lport = DFLTPORT;
26 if (argc >= 2)
27 lport = atoi(argv[1]);
28 if (lport <= 0 || lport > 255)
29 lport = DFLTPORT;
30
31 fd = tcpopen((char *)0, 0, lport, TO_PASSIVE, "rw");
32 if (fd == -1) {
33 perror("uucico server: tcpopen");
34 exit(1);
35 }
36 close(0); close(1);
37 dup(fd); dup(fd);
38 execl("/usr/lib/uucp/uucico", "uucico", (char *)0);
39 perror("uucico server: execl");
40 exit(1);
41 }
42