1/*-
2 * Copyright (c) 1980, 1988, 1993
3 *	The Regents of the University of California.  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 * 4. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
31
32__FBSDID("$FreeBSD$");
33
34#ifndef lint
35static const char copyright[] =
36"@(#) Copyright (c) 1980, 1988, 1993\n\
37	The Regents of the University of California.  All rights reserved.\n";
38#endif
39
40#ifndef lint
41static const char sccsid[] = "@(#)tput.c	8.2 (Berkeley) 3/19/94";
42#endif
43
44#include <termios.h>
45
46#include <err.h>
47#include <termcap.h>
48#include <stdio.h>
49#include <stdlib.h>
50#include <string.h>
51#include <unistd.h>
52
53#undef putchar
54#define outc putchar
55
56static void   prlongname(char *);
57static void   usage(void);
58static char **process(const char *, char *, char **);
59
60int
61main(int argc, char **argv)
62{
63	int ch, exitval, n;
64	char *cptr, *term, buf[1024], tbuf[1024];
65	const char *p;
66
67	term = NULL;
68	while ((ch = getopt(argc, argv, "T:")) != -1)
69		switch(ch) {
70		case 'T':
71			term = optarg;
72			break;
73		case '?':
74		default:
75			usage();
76		}
77	argc -= optind;
78	argv += optind;
79
80	if (argc < 1)
81		usage();
82
83	if (!term && !(term = getenv("TERM")))
84errx(2, "no terminal type specified and no TERM environmental variable.");
85	if (tgetent(tbuf, term) != 1)
86		err(3, "tgetent failure");
87	for (exitval = 0; (p = *argv) != NULL; ++argv) {
88		switch (*p) {
89		case 'c':
90			if (!strcmp(p, "clear"))
91				p = "cl";
92			break;
93		case 'i':
94			if (!strcmp(p, "init"))
95				p = "is";
96			break;
97		case 'l':
98			if (!strcmp(p, "longname")) {
99				prlongname(tbuf);
100				continue;
101			}
102			break;
103		case 'r':
104			if (!strcmp(p, "reset"))
105				p = "rs";
106			break;
107		}
108		cptr = buf;
109		if (tgetstr(p, &cptr))
110			argv = process(p, buf, argv);
111		else if ((n = tgetnum(p)) != -1)
112			(void)printf("%d\n", n);
113		else
114			exitval = !tgetflag(p);
115	}
116	exit(exitval);
117}
118
119static void
120prlongname(char *buf)
121{
122	int savech;
123	char *p, *savep;
124
125	for (p = buf; *p && *p != ':'; ++p);
126	savech = *(savep = p);
127	for (*p = '\0'; p >= buf && *p != '|'; --p);
128	(void)printf("%s\n", p + 1);
129	*savep = savech;
130}
131
132static char **
133process(const char *cap, char *str, char **argv)
134{
135	static const char errfew[] =
136	    "not enough arguments (%d) for capability `%s'";
137	static const char errmany[] =
138	    "too many arguments (%d) for capability `%s'";
139	static const char erresc[] =
140	    "unknown %% escape `%c' for capability `%s'";
141	char *cp;
142	int arg_need, arg_rows, arg_cols;
143
144	/* Count how many values we need for this capability. */
145	for (cp = str, arg_need = 0; *cp != '\0'; cp++)
146		if (*cp == '%')
147			    switch (*++cp) {
148			    case 'd':
149			    case '2':
150			    case '3':
151			    case '.':
152			    case '+':
153				    arg_need++;
154				    break;
155			    case '%':
156			    case '>':
157			    case 'i':
158			    case 'r':
159			    case 'n':
160			    case 'B':
161			    case 'D':
162				    break;
163			    case 'p':
164				    if (cp[1]) {
165					cp++;
166					break;
167				    }
168			    default:
169				/*
170				 * hpux has lot's of them, but we complain
171				 */
172				 warnx(erresc, *cp, cap);
173			    }
174
175	/* And print them. */
176	switch (arg_need) {
177	case 0:
178		(void)tputs(str, 1, outc);
179		break;
180	case 1:
181		arg_cols = 0;
182
183		if (*++argv == NULL || *argv[0] == '\0')
184			errx(2, errfew, 1, cap);
185		arg_rows = atoi(*argv);
186
187		(void)tputs(tgoto(str, arg_cols, arg_rows), 1, outc);
188		break;
189	case 2:
190		if (*++argv == NULL || *argv[0] == '\0')
191			errx(2, errfew, 2, cap);
192		arg_cols = atoi(*argv);
193
194		if (*++argv == NULL || *argv[0] == '\0')
195			errx(2, errfew, 2, cap);
196		arg_rows = atoi(*argv);
197
198		(void) tputs(tgoto(str, arg_cols, arg_rows), arg_rows, outc);
199		break;
200
201	default:
202		errx(2, errmany, arg_need, cap);
203	}
204	return (argv);
205}
206
207static void
208usage(void)
209{
210	(void)fprintf(stderr, "usage: tput [-T term] attribute ...\n");
211	exit(2);
212}
213