GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: bin/stty/stty.c Lines: 20 61 32.8 %
Date: 2017-11-13 Branches: 16 56 28.6 %

Line Branch Exec Source
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/*	$OpenBSD: stty.c,v 1.20 2016/07/23 08:57:18 bluhm Exp $	*/
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/*	$NetBSD: stty.c,v 1.11 1995/03/21 09:11:30 cgd Exp $	*/
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/*-
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 * Copyright (c) 1989, 1991, 1993, 1994
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 *	The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#include <sys/types.h>
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#include <sys/ioctl.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdlib.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 "stty.h"
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#include "extern.h"
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int
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main(int argc, char *argv[])
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{
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	struct info i;
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	enum FMT fmt;
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	int ch;
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	fmt = NOTSET;
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	i.fd = STDIN_FILENO;
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	opterr = 0;
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	while (optind < argc &&
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	    strspn(argv[optind], "-aefg") == strlen(argv[optind]) &&
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	    (ch = getopt(argc, argv, "aef:g")) != -1)
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		switch(ch) {
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		case 'a':
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			fmt = POSIX;
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			break;
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		case 'e':
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			fmt = BSD;
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			break;
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		case 'f':
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			if ((i.fd = open(optarg, O_RDONLY | O_NONBLOCK)) < 0)
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				err(1, "%s", optarg);
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			break;
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		case 'g':
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			fmt = GFLAG;
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			break;
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		default:
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			goto args;
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		}
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args:	argc -= optind;
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	argv += optind;
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	if (ioctl(i.fd, TIOCGETD, &i.ldisc) < 0	)
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		err(1, "TIOCGETD");
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	if (tcgetattr(i.fd, &i.t) < 0)
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		errx(1, "not a terminal");
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	if (ioctl(i.fd, TIOCGWINSZ, &i.win) < 0)
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		warn("TIOCGWINSZ");
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	switch(fmt) {
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	case NOTSET:
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		if (*argv)
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			break;
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		/* FALLTHROUGH */
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	case BSD:
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	case POSIX:
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		if (*argv)
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			errx(1, "either display or modify");
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		if (pledge("stdio flock rpath cpath wpath", NULL) == -1)
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			err(1, "pledge");
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		print(&i.t, &i.win, i.ldisc, fmt);
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		break;
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	case GFLAG:
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		if (*argv)
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			errx(1, "either display or modify");
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		if (pledge("stdio flock rpath cpath wpath", NULL) == -1)
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			err(1, "pledge");
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		gprint(&i.t, &i.win, i.ldisc);
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		break;
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	}
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	/*
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	 * Cannot pledge, because of "extproc", "ostart" and "ostop"
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	 */
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	for (i.set = i.wset = 0; *argv; ++argv) {
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		if (ksearch(&argv, &i))
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			continue;
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		if (csearch(&argv, &i))
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			continue;
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		if (msearch(&argv, &i))
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			continue;
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		if (isdigit((unsigned char)**argv)) {
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			const char *error;
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			int speed;
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			speed = strtonum(*argv, 0, INT_MAX, &error);
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			if (error)
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				err(1, "%s", *argv);
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			cfsetospeed(&i.t, speed);
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			cfsetispeed(&i.t, speed);
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			i.set = 1;
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			continue;
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		}
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		if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) {
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			gread(&i.t, *argv + sizeof("gfmt1") - 1);
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			i.set = 1;
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			continue;
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		}
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		warnx("illegal option -- %s", *argv);
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		usage();
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	}
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	if (i.set && tcsetattr(i.fd, 0, &i.t) < 0)
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		err(1, "tcsetattr");
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	if (i.wset && ioctl(i.fd, TIOCSWINSZ, &i.win) < 0)
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		warn("TIOCSWINSZ");
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	return (0);
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}
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void
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usage(void)
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{
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	fprintf(stderr, "usage: %s [-a | -e | -g] [-f file] [operands]\n",
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	    __progname);
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	exit (1);
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}