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Commit	Line	Data
	1	/*-
	2	* Copyright (c) 1992 Christopher G. Demetriou
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. The name of the author may not be used to endorse or promote
	14	* products derived from this software without specific written permission.
	15	*
	16	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
	17	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	18	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	19	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	20	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	21	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	22	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	23	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	24	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	25	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	26	* SUCH DAMAGE.
	27	*
	28	* $FreeBSD: src/sbin/comcontrol/comcontrol.c,v 1.8.2.2 2001/08/01 06:01:51 obrien Exp $
	29	* $DragonFly: src/sbin/comcontrol/comcontrol.c,v 1.2 2003/06/17 04:27:32 dillon Exp $
	30	*/
	31
	32	#include <ctype.h>
	33	#include <err.h>
	34	#include <errno.h>
	35	#include <fcntl.h>
	36	#include <stdio.h>
	37	#include <stdlib.h>
	38	#include <string.h>
	39	#include <unistd.h>
	40	#include <sys/types.h>
	41	#include <sys/ioctl.h>
	42
	43	static void
	44	usage()
	45	{
	46	fprintf(stderr,
	47	"usage: comcontrol <filename> [dtrwait <n>] [drainwait <n>]\n");
	48	exit(1);
	49	}
	50
	51	int
	52	main(int argc, char *argv[])
	53	{
	54	int fd;
	55	int res = 0;
	56	int print_dtrwait = 1, print_drainwait = 1;
	57	int dtrwait = -1, drainwait = -1;
	58
	59	if (argc < 2)
	60	usage();
	61
	62	if (strcmp(argv[1], "-") == 0)
	63	fd = STDIN_FILENO;
	64	else {
	65	fd = open(argv[1], O_RDONLY\|O_NONBLOCK, 0);
	66	if (fd < 0) {
	67	warn("couldn't open file %s", argv[1]);
	68	return 1;
	69	}
	70	}
	71	if (argc == 2) {
	72	if (ioctl(fd, TIOCMGDTRWAIT, &dtrwait) < 0) {
	73	print_dtrwait = 0;
	74	if (errno != ENOTTY) {
	75	res = 1;
	76	warn("TIOCMGDTRWAIT");
	77	}
	78	}
	79	if (ioctl(fd, TIOCGDRAINWAIT, &drainwait) < 0) {
	80	print_drainwait = 0;
	81	if (errno != ENOTTY) {
	82	res = 1;
	83	warn("TIOCGDRAINWAIT");
	84	}
	85	}
	86	if (print_dtrwait)
	87	printf("dtrwait %d ", dtrwait);
	88	if (print_drainwait)
	89	printf("drainwait %d ", drainwait);
	90	printf("\n");
	91	} else {
	92	while (argv[2] != NULL) {
	93	if (!strcmp(argv[2],"dtrwait")) {
	94	if (dtrwait >= 0)
	95	usage();
	96	if (argv[3] == NULL \|\| !isdigit(argv[3][0]))
	97	usage();
	98	dtrwait = atoi(argv[3]);
	99	argv += 2;
	100	} else if (!strcmp(argv[2],"drainwait")) {
	101	if (drainwait >= 0)
	102	usage();
	103	if (argv[3] == NULL \|\| !isdigit(argv[3][0]))
	104	usage();
	105	drainwait = atoi(argv[3]);
	106	argv += 2;
	107	} else
	108	usage();
	109	}
	110	if (dtrwait >= 0) {
	111	if (ioctl(fd, TIOCMSDTRWAIT, &dtrwait) < 0) {
	112	res = 1;
	113	warn("TIOCMSDTRWAIT");
	114	}
	115	}
	116	if (drainwait >= 0) {
	117	if (ioctl(fd, TIOCSDRAINWAIT, &drainwait) < 0) {
	118	res = 1;
	119	warn("TIOCSDRAINWAIT");
	120	}
	121	}
	122	}
	123
	124	close(fd);
	125	return res;
	126	}