wrterm.c revision 200419 
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
34#include <sys/cdefs.h>
35
36__FBSDID("$FreeBSD: head/usr.bin/tset/wrterm.c 200419 2009-12-11 23:30:22Z delphij $");
37
38#ifndef lint
39static const char sccsid[] = "@(#)wrterm.c	8.1 (Berkeley) 6/9/93";
40#endif
41
42#include <sys/types.h>
43
44#include <ctype.h>
45#include <err.h>
46#include <stdio.h>
47#include <string.h>
48
49#include "extern.h"
50
51/*
52 * Output termcap entry to stdout, quoting characters that would give the
53 * shell problems and omitting empty fields.
54 */
55void
56wrtermcap(char *bp)
57{
58	register int ch;
59	register char *p;
60	char *t, *sep;
61
62	/* Find the end of the terminal names. */
63	if ((t = index(bp, ':')) == NULL)
64		errx(1, "termcap names not colon terminated");
65	*t++ = '\0';
66
67	/* Output terminal names that don't have whitespace. */
68	sep = strdup("");
69	while ((p = strsep(&bp, "|")) != NULL)
70		if (*p != '\0' && strpbrk(p, " \t") == NULL) {
71			(void)printf("%s%s", sep, p);
72			sep = strdup("|");
73		}
74	(void)putchar(':');
75
76	/*
77	 * Output fields, transforming any dangerous characters.  Skip
78	 * empty fields or fields containing only whitespace.
79	 */
80	while ((p = strsep(&t, ":")) != NULL) {
81		while ((ch = *p) != '\0' && isspace(ch))
82			++p;
83		if (ch == '\0')
84			continue;
85		while ((ch = *p++) != '\0')
86			switch(ch) {
87			case '\033':
88				(void)printf("\\E");
89			case  ' ':		/* No spaces. */
90				(void)printf("\\040");
91				break;
92			case '!':		/* No csh history chars. */
93				(void)printf("\\041");
94				break;
95			case ',':		/* No csh history chars. */
96				(void)printf("\\054");
97				break;
98			case '"':		/* No quotes. */
99				(void)printf("\\042");
100				break;
101			case '\'':		/* No quotes. */
102				(void)printf("\\047");
103				break;
104			case '`':		/* No quotes. */
105				(void)printf("\\140");
106				break;
107			case '\\':		/* Anything following is OK. */
108			case '^':
109				(void)putchar(ch);
110				if ((ch = *p++) == '\0')
111					break;
112				/* FALLTHROUGH */
113			default:
114				(void)putchar(ch);
115		}
116		(void)putchar(':');
117	}
118}
119