[unix-history] / bin / stty / stty.c

/*-
 * Copyright (c) 1989, 1991 The Regents of the University of California.
 * 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 and the following disclaimer.
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 */

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1989, 1991 The Regents of the University of California.\n\
 All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)stty.c	5.28 (Berkeley) 6/5/91";
#endif /* not lint */

#include <sys/types.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include "stty.h"
#include "extern.h"

char *usage = "usage: stty: [-eg] [-f file] [options]";

main(argc, argv) 
	int argc;
	char **argv;
{
	struct info i;
	enum FMT fmt;
	int ch;

	fmt = NOTSET;
	i.fd = STDIN_FILENO;

	opterr = 0;
	while (argv[optind] &&
 	    strspn(argv[optind], "-aefg") == strlen(argv[optind]) &&
	    (ch = getopt(argc, argv, "aef:g")) != EOF)
		switch(ch) {
		case 'a':		/* undocumented: POSIX compatibility */
			fmt = POSIX;
			break;
		case 'e':
			fmt = BSD;
			break;
		case 'f':
			if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0)
				err("%s: %s", optarg, strerror(errno));
			break;
		case 'g':
			fmt = GFLAG;
			break;
		case '?':
		default:
			goto args;
		}

args:	argc -= optind;
	argv += optind;

	if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0)
		err("TIOCGETD: %s", strerror(errno));
	if (tcgetattr(i.fd, &i.t) < 0)
		err("tcgetattr: %s", strerror(errno));
	if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0)
		warn("TIOCGWINSZ: %s\n", strerror(errno));

	checkredirect();			/* conversion aid */

	switch(fmt) {
	case NOTSET:
		if (*argv)
			break;
		/* FALLTHROUGH */
	case BSD:
	case POSIX:
		print(&i.t, &i.win, i.ldisc, fmt);
		break;
	case GFLAG:
		gprint(&i.t, &i.win, i.ldisc);
		break;
	}
	
	for (i.set = i.wset = 0; *argv; ++argv) {
		if (ksearch(&argv, &i))
			continue;

		if (csearch(&argv, &i))
			continue;

		if (msearch(&argv, &i))
			continue;

		if (isdigit(**argv)) {
			int speed;

			speed = atoi(*argv);
			cfsetospeed(&i.t, speed);
			cfsetispeed(&i.t, speed);
			i.set = 1;
			continue;
		}

		if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) {
			gread(&i.t, *argv + sizeof("gfmt1") - 1);
			i.set = 1;
			continue;
		}

		err("illegal option -- %s\n%s", *argv, usage);
	}

	if (i.set && tcsetattr(i.fd, 0, &i.t) < 0)
		err("tcsetattr: %s", strerror(errno));
	if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0)
		warn("TIOCSWINSZ: %s", strerror(errno));
	exit(0);
}
Commit	Line	Data
15637ed4 RG	1	/*-
	2	* Copyright (c) 1989, 1991 The Regents of the University of California.
	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. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*/
	33
	34	#ifndef lint
	35	char copyright[] =
	36	"@(#) Copyright (c) 1989, 1991 The Regents of the University of California.\n\
	37	All rights reserved.\n";
	38	#endif /* not lint */
	39
	40	#ifndef lint
	41	static char sccsid[] = "@(#)stty.c 5.28 (Berkeley) 6/5/91";
	42	#endif /* not lint */
	43
	44	#include <sys/types.h>
	45	#include <fcntl.h>
	46	#include <errno.h>
	47	#include <unistd.h>
	48	#include <stdio.h>
	49	#include <ctype.h>
	50	#include <stdlib.h>
	51	#include <string.h>
	52	#include "stty.h"
	53	#include "extern.h"
	54
	55	char *usage = "usage: stty: [-eg] [-f file] [options]";
	56
	57	main(argc, argv)
	58	int argc;
	59	char **argv;
	60	{
	61	struct info i;
	62	enum FMT fmt;
	63	int ch;
	64
65	fmt = NOTSET;
66	i.fd = STDIN_FILENO;
67
68	opterr = 0;
9ee8939a SM	69	while (argv[optind] &&
9ee8939a SM	70	strspn(argv[optind], "-aefg") == strlen(argv[optind]) &&
15637ed4 RG	71	(ch = getopt(argc, argv, "aef:g")) != EOF)
	72	switch(ch) {
	73	case 'a': /* undocumented: POSIX compatibility */
	74	fmt = POSIX;
	75	break;
	76	case 'e':
	77	fmt = BSD;
	78	break;
	79	case 'f':
	80	if ((i.fd = open(optarg, O_RDONLY \| O_NONBLOCK)) < 0)
	81	err("%s: %s", optarg, strerror(errno));
	82	break;
	83	case 'g':
	84	fmt = GFLAG;
	85	break;
	86	case '?':
	87	default:
	88	goto args;
	89	}
	90
	91	args: argc -= optind;
	92	argv += optind;
	93
	94	if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0)
	95	err("TIOCGETD: %s", strerror(errno));
	96	if (tcgetattr(i.fd, &i.t) < 0)
	97	err("tcgetattr: %s", strerror(errno));
	98	if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0)
	99	warn("TIOCGWINSZ: %s\n", strerror(errno));
	100
	101	checkredirect(); /* conversion aid */
	102
	103	switch(fmt) {
	104	case NOTSET:
	105	if (*argv)
	106	break;
	107	/* FALLTHROUGH */
	108	case BSD:
	109	case POSIX:
	110	print(&i.t, &i.win, i.ldisc, fmt);
	111	break;
	112	case GFLAG:
	113	gprint(&i.t, &i.win, i.ldisc);
	114	break;
	115	}
	116
	117	for (i.set = i.wset = 0; *argv; ++argv) {
	118	if (ksearch(&argv, &i))
	119	continue;
	120
	121	if (csearch(&argv, &i))
	122	continue;
	123
	124	if (msearch(&argv, &i))
	125	continue;
	126
	127	if (isdigit(**argv)) {
	128	int speed;
	129
	130	speed = atoi(*argv);
	131	cfsetospeed(&i.t, speed);
	132	cfsetispeed(&i.t, speed);
	133	i.set = 1;
	134	continue;
135	}
136
137	if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) {
138	gread(&i.t, *argv + sizeof("gfmt1") - 1);
89ee0a93	139	i.set = 1;
15637ed4 RG	140	continue;
	141	}
	142
	143	err("illegal option -- %s\n%s", *argv, usage);
	144	}
	145
	146	if (i.set && tcsetattr(i.fd, 0, &i.t) < 0)
	147	err("tcsetattr: %s", strerror(errno));
	148	if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0)
	149	warn("TIOCSWINSZ: %s", strerror(errno));
	150	exit(0);
	151	}