1/*	$NetBSD: tput.c,v 1.22 2011/10/04 12:23:14 roy Exp $	*/
2
3/*-
4 * Copyright (c) 1980, 1988, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33#ifndef lint
34__COPYRIGHT("@(#) Copyright (c) 1980, 1988, 1993\
35 The Regents of the University of California.  All rights reserved.");
36#endif /* not lint */
37
38#ifndef lint
39#if 0
40static char sccsid[] = "@(#)tput.c	8.3 (Berkeley) 4/28/95";
41#endif
42__RCSID("$NetBSD: tput.c,v 1.22 2011/10/04 12:23:14 roy Exp $");
43#endif /* not lint */
44
45#include <termios.h>
46
47#include <err.h>
48#include <errno.h>
49#include <limits.h>
50#include <stdio.h>
51#include <stdlib.h>
52#include <string.h>
53#include <term_private.h>
54#include <term.h>
55#include <unistd.h>
56
57static void   usage(void) __dead;
58static char **process(const char *, const char *, char **);
59
60int
61main(int argc, char **argv)
62{
63	int ch, exitval, n;
64	char *term;
65	const char *p, *s;
66	size_t pl;
67
68	term = NULL;
69	while ((ch = getopt(argc, argv, "T:")) != -1)
70		switch(ch) {
71		case 'T':
72			term = optarg;
73			break;
74		case '?':
75		default:
76			usage();
77		}
78	argc -= optind;
79	argv += optind;
80
81	if (!term && !(term = getenv("TERM")))
82		errx(2, "No terminal type specified and no TERM "
83		    "variable set in the environment.");
84	setupterm(term, 0, NULL);
85	for (exitval = 0; (p = *argv) != NULL; ++argv) {
86		switch (*p) {
87		case 'c':
88			if (!strcmp(p, "clear"))
89				p = "clear";
90			break;
91		case 'i':
92			if (!strcmp(p, "init")) {
93				s = tigetstr("is1");
94				if (s != NULL)
95					putp(s);
96				p = "is2";
97			}
98			break;
99		case 'l':
100			if (!strcmp(p, "longname")) {
101				(void)printf("%s\n", longname());
102				continue;
103			}
104			break;
105		case 'r':
106			if (!strcmp(p, "reset")) {
107				s = tigetstr("rs1");
108				if (s != NULL)
109					putp(s);
110				p = "rs2";
111			}
112			break;
113		}
114		pl = strlen(p);
115		if (((s = tigetstr(p)) != NULL && s != (char *)-1) ||
116		    (pl <= 2 && (s = tgetstr(p, NULL)) != NULL))
117			argv = process(p, s, argv);
118		else if ((((n = tigetnum(p)) != -1 && n != -2 ) ||
119			   (pl <= 2 && (n = tgetnum(p)) != -1)))
120			(void)printf("%d\n", n);
121		else {
122			exitval = tigetflag(p);
123			if (exitval == -1) {
124				if (pl <= 2)
125					exitval = !tgetflag(p);
126				else
127					exitval = 1;
128			} else
129				exitval = !exitval;
130		}
131
132		if (argv == NULL)
133			break;
134	}
135	return argv ? exitval : 2;
136}
137
138static char **
139process(const char *cap, const char *str, char **argv)
140{
141	static const char errfew[] =
142	    "Not enough arguments (%d) for capability `%s'";
143	static const char erresc[] =
144	    "Unknown %% escape (%s) for capability `%s'";
145	static const char errnum[] =
146	    "Expected a numeric argument [%d] (%s) for capability `%s'";
147	static const char errcharlong[] =
148	    "Platform does not fit a string into a long for capability '%s'";
149	int i, nparams, piss[TPARM_MAX];
150	long nums[TPARM_MAX];
151	char *strs[TPARM_MAX], *tmp;
152
153	/* Count how many values we need for this capability. */
154	errno = 0;
155	memset(&piss, 0, sizeof(piss));
156	nparams = _ti_parm_analyse(str, piss, TPARM_MAX);
157	if (errno == EINVAL)
158		errx(2, erresc, str, cap);
159
160	/* Create our arrays of integers and strings */
161	for (i = 0; i < nparams; i++) {
162		if (*++argv == NULL || *argv[0] == '\0')
163			errx(2, errfew, nparams, cap);
164		if (piss[i]) {
165			if (sizeof(char *) > sizeof(long) /* CONSTCOND */)
166				errx(2, errcharlong, cap);
167			strs[i] = *argv;
168		} else {
169			errno = 0;
170			nums[i] = strtol(*argv, &tmp, 0);
171			if ((errno == ERANGE &&
172			    (nums[i] == LONG_MIN || nums[i] == LONG_MAX)) ||
173			    (errno != 0 && nums[i] == 0) ||
174			    tmp == str ||
175			    *tmp != '\0')
176				errx(2, errnum, i + 1, *argv, cap);
177		}
178	}
179
180	/* And output */
181#define p(i)	(i <= nparams ? \
182		    (piss[i - 1] ? (long)strs[i - 1] : nums[i - 1]) : 0)
183	putp(tparm(str, p(1), p(2), p(3), p(4), p(5), p(6), p(7), p(8), p(9)));
184
185	return argv;
186}
187
188static void
189usage(void)
190{
191	(void)fprintf(stderr,
192	    "Usage: %s [-T term] attribute [attribute-args] ...\n",
193	    getprogname());
194	exit(2);
195}
196