113 lines
3.2 KiB
C
113 lines
3.2 KiB
C
/*
|
|
* $Id$
|
|
*/
|
|
|
|
/*
|
|
* slcan_attach.c - userspace tool for serial line CAN interface driver SLCAN
|
|
*
|
|
* Copyright (c) 2002-2007 Volkswagen Group Electronic Research
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, the following disclaimer and
|
|
* the referenced file 'COPYING'.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of Volkswagen nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* Alternatively, provided that this notice is retained in full, this
|
|
* software may be distributed under the terms of the GNU General
|
|
* Public License ("GPL") version 2 as distributed in the 'COPYING'
|
|
* file from the main directory of the linux kernel source.
|
|
*
|
|
* The provided data structures and external interfaces from this code
|
|
* are not restricted to be used by modules with a GPL compatible license.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
|
|
* DAMAGE.
|
|
*
|
|
* Send feedback to <socketcan-users@lists.berlios.de>
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <getopt.h>
|
|
#include <sys/ioctl.h>
|
|
#include <linux/tty.h> /* thanks for cleanup since 2.6.21 */
|
|
//#include <asm/termios.h> /* ldiscs for each arch up to 2.6.20 */
|
|
|
|
#ifndef N_SLCAN
|
|
#define N_SLCAN 17 /* bad hack until it's not inside the Kernel */
|
|
#endif
|
|
|
|
void usage(char *name)
|
|
{
|
|
fprintf(stderr, "Usage: %s [-d] [-l ldisc] tty\n", name);
|
|
exit(1);
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int fd;
|
|
int ldisc = N_SLCAN; /* default */
|
|
int detach = 0;
|
|
char *tty;
|
|
int opt;
|
|
|
|
while ((opt = getopt(argc, argv, "l:d")) != -1) {
|
|
switch (opt) {
|
|
case 'l':
|
|
ldisc = atoi(optarg);
|
|
break;
|
|
|
|
case 'd':
|
|
detach = 1;
|
|
break;
|
|
default:
|
|
usage(argv[0]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (argc - optind != 1)
|
|
usage(argv[0]);
|
|
|
|
tty = argv[optind];
|
|
|
|
if ((fd = open (tty, O_RDONLY | O_NOCTTY)) < 0) {
|
|
perror(tty);
|
|
exit(1);
|
|
}
|
|
|
|
if (detach)
|
|
ldisc = N_TTY;
|
|
|
|
if (ioctl (fd, TIOCSETD, &ldisc) < 0) {
|
|
perror("ioctl");
|
|
exit(1);
|
|
}
|
|
|
|
close(fd);
|
|
|
|
return 0;
|
|
}
|