xref: /dragonfly/usr.bin/tset/wrterm.c (revision 6e285212)
1 /*-
2  * Copyright (c) 1991, 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  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  * @(#)wrterm.c	8.1 (Berkeley) 6/9/93
34  * $FreeBSD: src/usr.bin/tset/wrterm.c,v 1.3 1999/08/28 01:06:59 peter Exp $
35  * $DragonFly: src/usr.bin/tset/wrterm.c,v 1.2 2003/06/17 04:29:33 dillon Exp $
36  */
37 
38 #include <sys/types.h>
39 #include <ctype.h>
40 #include <err.h>
41 #include <stdio.h>
42 #include <string.h>
43 #include "extern.h"
44 
45 /*
46  * Output termcap entry to stdout, quoting characters that would give the
47  * shell problems and omitting empty fields.
48  */
49 void
50 wrtermcap(bp)
51 	char *bp;
52 {
53 	register int ch;
54 	register char *p;
55 	char *t, *sep;
56 
57 	/* Find the end of the terminal names. */
58 	if ((t = index(bp, ':')) == NULL)
59 		errx(1, "termcap names not colon terminated");
60 	*t++ = '\0';
61 
62 	/* Output terminal names that don't have whitespace. */
63 	sep = "";
64 	while ((p = strsep(&bp, "|")) != NULL)
65 		if (*p != '\0' && strpbrk(p, " \t") == NULL) {
66 			(void)printf("%s%s", sep, p);
67 			sep = "|";
68 		}
69 	(void)putchar(':');
70 
71 	/*
72 	 * Output fields, transforming any dangerous characters.  Skip
73 	 * empty fields or fields containing only whitespace.
74 	 */
75 	while ((p = strsep(&t, ":")) != NULL) {
76 		while ((ch = *p) != '\0' && isspace(ch))
77 			++p;
78 		if (ch == '\0')
79 			continue;
80 		while ((ch = *p++) != '\0')
81 			switch(ch) {
82 			case '\033':
83 				(void)printf("\\E");
84 			case  ' ':		/* No spaces. */
85 				(void)printf("\\040");
86 				break;
87 			case '!':		/* No csh history chars. */
88 				(void)printf("\\041");
89 				break;
90 			case ',':		/* No csh history chars. */
91 				(void)printf("\\054");
92 				break;
93 			case '"':		/* No quotes. */
94 				(void)printf("\\042");
95 				break;
96 			case '\'':		/* No quotes. */
97 				(void)printf("\\047");
98 				break;
99 			case '`':		/* No quotes. */
100 				(void)printf("\\140");
101 				break;
102 			case '\\':		/* Anything following is OK. */
103 			case '^':
104 				(void)putchar(ch);
105 				if ((ch = *p++) == '\0')
106 					break;
107 				/* FALLTHROUGH */
108 			default:
109 				(void)putchar(ch);
110 		}
111 		(void)putchar(':');
112 	}
113 }
114