GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: bin/stty/cchar.c Lines: 9 30 30.0 %
Date: 2017-11-07 Branches: 2 28 7.1 %

Line Branch Exec Source
1
/*	$OpenBSD: cchar.c,v 1.12 2016/03/23 14:52:42 mmcc Exp $	*/
2
/*	$NetBSD: cchar.c,v 1.10 1996/05/07 18:20:05 jtc Exp $	*/
3
4
/*-
5
 * Copyright (c) 1991, 1993, 1994
6
 *	The Regents of the University of California.  All rights reserved.
7
 *
8
 * Redistribution and use in source and binary forms, with or without
9
 * modification, are permitted provided that the following conditions
10
 * are met:
11
 * 1. Redistributions of source code must retain the above copyright
12
 *    notice, this list of conditions and the following disclaimer.
13
 * 2. Redistributions in binary form must reproduce the above copyright
14
 *    notice, this list of conditions and the following disclaimer in the
15
 *    documentation and/or other materials provided with the distribution.
16
 * 3. Neither the name of the University nor the names of its contributors
17
 *    may be used to endorse or promote products derived from this software
18
 *    without specific prior written permission.
19
 *
20
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30
 * SUCH DAMAGE.
31
 */
32
33
#include <sys/types.h>
34
#include <sys/ioctl.h>
35
36
#include <err.h>
37
#include <limits.h>
38
#include <stddef.h>
39
#include <stdlib.h>
40
#include <string.h>
41
#include <termios.h>
42
43
#include "stty.h"
44
#include "extern.h"
45
46
/*
47
 * Special control characters.
48
 *
49
 * Cchars1 are the standard names, cchars2 are the old aliases.
50
 * The first are displayed, but both are recognized on the
51
 * command line.
52
 */
53
const struct cchar cchars1[] = {
54
	{ "discard",	VDISCARD, 	CDISCARD },
55
	{ "dsusp", 	VDSUSP,		CDSUSP },
56
	{ "eof",	VEOF,		CEOF },
57
	{ "eol",	VEOL,		CEOL },
58
	{ "eol2",	VEOL2,		CEOL },
59
	{ "erase",	VERASE,		CERASE },
60
	{ "intr",	VINTR,		CINTR },
61
	{ "kill",	VKILL,		CKILL },
62
	{ "lnext",	VLNEXT,		CLNEXT },
63
	{ "min",	VMIN,		CMIN },
64
	{ "quit",	VQUIT,		CQUIT },
65
	{ "reprint",	VREPRINT, 	CREPRINT },
66
	{ "start",	VSTART,		CSTART },
67
	{ "status",	VSTATUS, 	CSTATUS },
68
	{ "stop",	VSTOP,		CSTOP },
69
	{ "susp",	VSUSP,		CSUSP },
70
	{ "time",	VTIME,		CTIME },
71
	{ "werase",	VWERASE,	CWERASE },
72
	{ NULL },
73
};
74
75
const struct cchar cchars2[] = {
76
	{ "brk",	VEOL,		CEOL },
77
	{ "flush",	VDISCARD, 	CDISCARD },
78
	{ "rprnt",	VREPRINT, 	CREPRINT },
79
	{ NULL },
80
};
81
82
static int
83
c_cchar(const void *a, const void *b)
84
{
85
1134
	return (strcmp(((struct cchar *)a)->name, ((struct cchar *)b)->name));
86
}
87
88
int
89
csearch(char ***argvp, struct info *ip)
90
{
91
162
	struct cchar *cp, tmp;
92
	long val;
93
81
	char *arg, *ep, *name;
94
95
81
	name = **argvp;
96
97
81
	tmp.name = name;
98
162
	if (!(cp = (struct cchar *)bsearch(&tmp, cchars1,
99
	    sizeof(cchars1)/sizeof(struct cchar) - 1, sizeof(struct cchar),
100
162
	    c_cchar)) && !(cp = (struct cchar *)bsearch(&tmp, cchars2,
101
	    sizeof(cchars2)/sizeof(struct cchar) - 1, sizeof(struct cchar),
102
	    c_cchar)))
103
81
		return (0);
104
105
	arg = *++*argvp;
106
	if (!arg) {
107
		warnx("option requires an argument -- %s", name);
108
		usage();
109
	}
110
111
#define CHK(s)  (*arg == s[0] && !strcmp(arg, s))
112
	if (CHK("undef") || CHK("<undef>"))
113
		ip->t.c_cc[cp->sub] = _POSIX_VDISABLE;
114
	else if (cp->sub == VMIN || cp->sub == VTIME) {
115
		val = strtol(arg, &ep, 10);
116
		if (val > UCHAR_MAX || val < 0) {
117
			warnx("maximum option value is %d -- %s",
118
			    UCHAR_MAX, name);
119
			usage();
120
		}
121
		if (*ep != '\0') {
122
			warnx("option requires a numeric argument -- %s", name);
123
			usage();
124
		}
125
		ip->t.c_cc[cp->sub] = val;
126
	} else if (arg[0] == '^')
127
		ip->t.c_cc[cp->sub] = (arg[1] == '?') ? 0177 :
128
		    (arg[1] == '-') ? _POSIX_VDISABLE : arg[1] & 037;
129
	else
130
		ip->t.c_cc[cp->sub] = arg[0];
131
	ip->set = 1;
132
	return (1);
133
81
}