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https://github.com/ecki/net-tools.git
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49d6a0009c
Some other cleanups: - lib/net-string.c removed because it was not used and had a copyright notice that conflicted with the GPL. - Minor cleanups. - Fix an potential buffer overflow in ax25. - Switch to CVS $Id$ for versioning consistently
115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
/*
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* lib/slip_ac.c This file contains the activation for the
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* SLIP line disciplines, called from activate_ld().
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*
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* Version: $Id: slip_ac.c,v 1.3 1998/11/15 20:12:20 freitag Exp $
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*
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* Author: Bernd 'eckes' Eckenfels
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* Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
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* Copyright 1993 MicroWalt Corporation
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*
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* Modified by Alan Cox, May 94 to cover NET-3
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*
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* This program is free software; you can redistribute it
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* and/or modify it under the terms of the GNU General
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* Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*/
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#include "config.h"
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#if HAVE_HWSLIP
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <net/if_arp.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <ctype.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#include "net-support.h"
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#include "pathnames.h"
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/* Set the line discipline of a terminal line. */
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static int SLIP_set_disc(int fd, int disc)
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{
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if (ioctl(fd, TIOCSETD, &disc) < 0) {
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fprintf(stderr, "SLIP_set_disc(%d): %s\n", disc, strerror(errno));
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return (-errno);
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}
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return (0);
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}
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/* Set the encapsulation type of a terminal line. */
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static int SLIP_set_encap(int fd, int encap)
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{
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if (ioctl(fd, SIOCSIFENCAP, &encap) < 0) {
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fprintf(stderr, "SLIP_set_encap(%d): %s\n", encap, strerror(errno));
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return (-errno);
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}
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return (0);
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}
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/* Start the SLIP encapsulation on the file descriptor. */
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int SLIP_activate(int fd)
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{
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if (SLIP_set_disc(fd, N_SLIP) < 0)
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return (-1);
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if (SLIP_set_encap(fd, 0) < 0)
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return (-1);
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return (0);
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}
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/* Start the VJ-SLIP encapsulation on the file descriptor. */
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int CSLIP_activate(int fd)
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{
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if (SLIP_set_disc(fd, N_SLIP) < 0)
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return (-1);
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if (SLIP_set_encap(fd, 1) < 0)
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return (-1);
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return (0);
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}
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/* Start the SLIP-6 encapsulation on the file descriptor. */
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int SLIP6_activate(int fd)
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{
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if (SLIP_set_disc(fd, N_SLIP) < 0)
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return (-1);
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if (SLIP_set_encap(fd, 2) < 0)
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return (-1);
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return (0);
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}
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/* Start the VJ-SLIP-6 encapsulation on the file descriptor. */
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int CSLIP6_activate(int fd)
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{
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if (SLIP_set_disc(fd, N_SLIP) < 0)
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return (-1);
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if (SLIP_set_encap(fd, 3) < 0)
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return (-1);
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return (0);
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}
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/* Start adaptive encapsulation on the file descriptor. */
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int ADAPTIVE_activate(int fd)
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{
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if (SLIP_set_disc(fd, N_SLIP) < 0)
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return (-1);
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if (SLIP_set_encap(fd, 8) < 0)
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return (-1);
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return (0);
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}
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#endif /* HAVE_HWSLIP */
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