1*48643Sbostic /*
2*48643Sbostic * UNET (3Com) TCP-IP server for uucico.
3*48643Sbostic * uucico's UNET channel causes this server to be run at the remote end.
4*48643Sbostic * An argument, if present, is the local port number.
5*48643Sbostic * This server does a tcpopen(III) to establish the connection,
6*48643Sbostic * renames file descriptors 0,1, and 2 to be the UNET connection,
7*48643Sbostic * and then exec(II)s uucico.
8*48643Sbostic */
9*48643Sbostic
10*48643Sbostic #include <stdio.h>
11*48643Sbostic #include <UNET/unetio.h>
12*48643Sbostic #include <UNET/tcp.h>
13*48643Sbostic
14*48643Sbostic /* Default port of uucico server */
15*48643Sbostic #define DFLTPORT 33
16*48643Sbostic
main(argc,argv)17*48643Sbostic main(argc, argv)
18*48643Sbostic int argc;
19*48643Sbostic char **argv;
20*48643Sbostic {
21*48643Sbostic register int lport, fd;
22*48643Sbostic register FILE *fp;
23*48643Sbostic extern int errno;
24*48643Sbostic
25*48643Sbostic lport = DFLTPORT;
26*48643Sbostic if (argc >= 2)
27*48643Sbostic lport = atoi(argv[1]);
28*48643Sbostic if (lport <= 0 || lport > 255)
29*48643Sbostic lport = DFLTPORT;
30*48643Sbostic
31*48643Sbostic fd = tcpopen((char *)0, 0, lport, TO_PASSIVE, "rw");
32*48643Sbostic if (fd == -1) {
33*48643Sbostic perror("uucico server: tcpopen");
34*48643Sbostic exit(1);
35*48643Sbostic }
36*48643Sbostic close(0); close(1);
37*48643Sbostic dup(fd); dup(fd);
38*48643Sbostic execl("/usr/lib/uucp/uucico", "uucico", (char *)0);
39*48643Sbostic perror("uucico server: execl");
40*48643Sbostic exit(1);
41*48643Sbostic }
42