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: stable/9/usr.bin/tput/tput.c 216370 2010-12-11 08:32:16Z joel $");
33
34 #ifndef lint
35 static 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
41 static 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
56 static void prlongname(char *);
57 static void usage(void);
58 static char **process(const char *, char *, char **);
59
60 int
main(int argc,char ** argv)61 main(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")))
84 errx(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
119 static void
prlongname(char * buf)120 prlongname(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
132 static char **
process(const char * cap,char * str,char ** argv)133 process(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
207 static void
usage(void)208 usage(void)
209 {
210 (void)fprintf(stderr, "usage: tput [-T term] attribute ...\n");
211 exit(2);
212 }
213