tput.c revision 50276 
1/****************************************************************************
2 * Copyright (c) 1998 Free Software Foundation, Inc.                        *
3 *                                                                          *
4 * Permission is hereby granted, free of charge, to any person obtaining a  *
5 * copy of this software and associated documentation files (the            *
6 * "Software"), to deal in the Software without restriction, including      *
7 * without limitation the rights to use, copy, modify, merge, publish,      *
8 * distribute, distribute with modifications, sublicense, and/or sell       *
9 * copies of the Software, and to permit persons to whom the Software is    *
10 * furnished to do so, subject to the following conditions:                 *
11 *                                                                          *
12 * The above copyright notice and this permission notice shall be included  *
13 * in all copies or substantial portions of the Software.                   *
14 *                                                                          *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22 *                                                                          *
23 * Except as contained in this notice, the name(s) of the above copyright   *
24 * holders shall not be used in advertising or otherwise to promote the     *
25 * sale, use or other dealings in this Software without prior written       *
26 * authorization.                                                           *
27 ****************************************************************************/
28
29/****************************************************************************
30 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995               *
31 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32 ****************************************************************************/
33
34
35/*
36 * tput.c -- shellscript access to terminal capabilities
37 *
38 * by Eric S. Raymond <esr@snark.thyrsus.com>, portions based on code from
39 * Ross Ridge's mytinfo package.
40 */
41
42#include <progs.priv.h>
43#ifndef	PURE_TERMINFO
44#include <termsort.c>
45#endif
46
47MODULE_ID("$Id: tput.c,v 1.14 1999/07/31 21:18:29 Goran.Uddeborg Exp $")
48
49#define PUTS(s)		fputs(s, stdout)
50#define PUTCHAR(c)	putchar(c)
51#define FLUSH		fflush(stdout)
52
53static char *prg_name;
54
55static void quit(int status, const char *fmt, ...)
56{
57va_list argp;
58
59	va_start(argp,fmt);
60	vfprintf (stderr, fmt, argp);
61	fprintf(stderr, "\n");
62	va_end(argp);
63	exit(status);
64}
65
66static void usage(void)
67{
68	fprintf(stderr, "usage: %s [-S] [-T term] capname\n", prg_name);
69	exit(EXIT_FAILURE);
70}
71
72static int tput(int argc, char *argv[])
73{
74char *name;
75char *s;
76int i, j, c;
77int reset, status;
78FILE *f;
79
80	reset = 0;
81	name = argv[0];
82	if (strcmp(name, "reset") == 0) {
83		reset = 1;
84	}
85	if (reset || strcmp(name, "init") == 0) {
86		if (init_prog != NULL) {
87			system(init_prog);
88		}
89		FLUSH;
90
91		if (reset && reset_1string != NULL) {
92			PUTS(reset_1string);
93		} else if (init_1string != NULL) {
94			PUTS(init_1string);
95		}
96		FLUSH;
97
98		if (reset && reset_2string != NULL) {
99			PUTS(reset_2string);
100		} else if (init_2string != NULL) {
101			PUTS(init_2string);
102		}
103		FLUSH;
104
105		if (set_lr_margin != NULL) {
106			PUTS(tparm(set_lr_margin, 0, columns - 1));
107		} else if (set_left_margin_parm != NULL
108			   && set_right_margin_parm != NULL) {
109			PUTS(tparm(set_left_margin_parm, 0));
110			PUTS(tparm(set_right_margin_parm, columns - 1));
111		} else if (clear_margins != NULL && set_left_margin != NULL
112			   && set_right_margin != NULL) {
113			PUTS(clear_margins);
114			if (carriage_return != NULL) {
115				PUTS(carriage_return);
116			} else {
117				PUTCHAR('\r');
118			}
119			PUTS(set_left_margin);
120			if (parm_right_cursor) {
121				PUTS(tparm(parm_right_cursor, columns - 1));
122			} else {
123				for(i = 0; i < columns - 1; i++) {
124					PUTCHAR(' ');
125				}
126			}
127			PUTS(set_right_margin);
128			if (carriage_return != NULL) {
129				PUTS(carriage_return);
130			} else {
131				PUTCHAR('\r');
132			}
133		}
134		FLUSH;
135
136		if (init_tabs != 8) {
137			if (clear_all_tabs != NULL && set_tab != NULL) {
138				for(i = 0; i < columns - 1; i += 8) {
139					if (parm_right_cursor) {
140						PUTS(tparm(parm_right_cursor, 8));
141					} else {
142						for(j = 0; j < 8; j++)
143							PUTCHAR(' ');
144					}
145					PUTS(set_tab);
146				}
147				FLUSH;
148			}
149		}
150
151		if (reset && reset_file != NULL) {
152			f = fopen(reset_file, "r");
153			if (f == NULL) {
154				quit(errno, "Can't open reset_file: '%s'", reset_file);
155			}
156			while((c = fgetc(f)) != EOF) {
157				PUTCHAR(c);
158			}
159			fclose(f);
160		} else if (init_file != NULL) {
161			f = fopen(init_file, "r");
162			if (f == NULL) {
163				quit(errno, "Can't open init_file: '%s'", init_file);
164			}
165			while((c = fgetc(f)) != EOF) {
166				PUTCHAR(c);
167			}
168			fclose(f);
169		}
170		FLUSH;
171
172		if (reset && reset_3string != NULL) {
173			PUTS(reset_3string);
174		} else if (init_2string != NULL) {
175			PUTS(init_2string);
176		}
177		FLUSH;
178		return 0;
179	}
180
181	if (strcmp(name, "longname") == 0) {
182		PUTS(longname());
183		return 0;
184	}
185
186#ifndef	PURE_TERMINFO
187	{
188		const struct name_table_entry 	*np;
189
190		if ((np = _nc_find_entry(name, _nc_get_hash_table(1))) != 0)
191			switch(np->nte_type)
192			{
193			case BOOLEAN:
194				if (bool_from_termcap[np->nte_index])
195					name = boolnames[np->nte_index];
196				break;
197
198			case NUMBER:
199				if (num_from_termcap[np->nte_index])
200					name = numnames[np->nte_index];
201				break;
202
203			case STRING:
204				if (str_from_termcap[np->nte_index])
205					name = strnames[np->nte_index];
206				break;
207			}
208	}
209#endif
210
211	if ((status = tigetflag(name)) != -1)
212		return(status != 0);
213	else if ((status = tigetnum(name)) != CANCELLED_NUMERIC) {
214		(void) printf("%d\n", status);
215		return(0);
216	}
217	else if ((s = tigetstr(name)) == CANCELLED_STRING)
218		quit(4, "%s: unknown terminfo capability '%s'", prg_name, name);
219	else if (s != (char *)NULL) {
220		if (argc > 1) {
221		int k;
222
223			/* Nasty hack time. The tparm function needs to see numeric
224			 * parameters as numbers, not as pointers to their string
225			 * representations
226			 */
227
228			 for (k = 1; k < argc; k++)
229			 	if (isdigit(argv[k][0])) {
230			 		long val = atol(argv[k]);
231			 		argv[k] = (char *)val;
232				}
233
234				s = tparm(s,argv[1],argv[2],argv[3],argv[4],
235					    argv[5],argv[6],argv[7],argv[8],
236					    argv[9]);
237		}
238
239		/* use putp() in order to perform padding */
240		putp(s);
241		return(0);
242	}
243	return(0);
244}
245
246int main(int argc, char **argv)
247{
248char *s, *term;
249int errret, cmdline = 1;
250int c;
251char	buf[BUFSIZ];
252int errors = 0;
253
254	prg_name = argv[0];
255	s = strrchr(prg_name, '/');
256	if (s != NULL && *++s != '\0')
257	prg_name = s;
258
259	term = getenv("TERM");
260
261	while ((c = getopt (argc, argv, "ST:")) != EOF)
262	    switch (c)
263	    {
264	    case 'S':
265		cmdline = 0;
266		break;
267	    case 'T':
268		use_env(FALSE);
269		term = optarg;
270		break;
271	    default:
272		usage();
273		/* NOTREACHED */
274	    }
275	argc -= optind;
276	argv += optind;
277
278	if (cmdline && argc == 0) {
279		usage();
280		/* NOTREACHED */
281	}
282
283	if (term == NULL || *term == '\0')
284		quit(2, "No value for $TERM and no -T specified");
285
286	if (setupterm(term, STDOUT_FILENO, &errret) != OK && errret <= 0)
287		quit(3, "unknown terminal \"%s\"", term);
288
289	if (cmdline)
290		return tput(argc, argv);
291
292	while (fgets(buf, sizeof(buf), stdin) != (char *)NULL) {
293		char	*argvec[16];	/* command, 9 parms, null, & slop */
294		int	 argnum = 0;
295		char    *cp;
296
297		/* crack the argument list into a dope vector */
298		for (cp = buf; *cp; cp++) {
299			if (isspace(*cp))
300				*cp = '\0';
301			else if (cp == buf || cp[-1] == 0)
302				argvec[argnum++] = cp;
303		}
304		argvec[argnum] = (char *)NULL;
305
306		if (tput(argnum, argvec) != 0)
307			errors++;
308	}
309
310	return errors > 0;
311}
312
313