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Annotation of 43BSDReno/usr.bin/uucp/uucpsrv.c, revision 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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