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Annotation of 42BSD/usr.bin/uucp/UUAIDS/uucpsrv.c, revision 1.1.1.1

1.1       root        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: }

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