4.3BSD - /usr/src/usr.bin/uucp/UUAIDS/uucpsrv.c

   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: 
  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: }

Defined functions

Defined macros