wrterm.c revision 28370 
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#ifndef lint
35#if 0
36static char sccsid[] = "@(#)wrterm.c	8.1 (Berkeley) 6/9/93";
37#endif
38static const char rcsid[] =
39	"$Id$";
40#endif /* not lint */
41
42#include <sys/types.h>
43#include <ctype.h>
44#include <err.h>
45#include <stdio.h>
46#include <string.h>
47#include "extern.h"
48
49/*
50 * Output termcap entry to stdout, quoting characters that would give the
51 * shell problems and omitting empty fields.
52 */
53void
54wrtermcap(bp)
55	char *bp;
56{
57	register int ch;
58	register char *p;
59	char *t, *sep;
60
61	/* Find the end of the terminal names. */
62	if ((t = index(bp, ':')) == NULL)
63		errx(1, "termcap names not colon terminated");
64	*t++ = '\0';
65
66	/* Output terminal names that don't have whitespace. */
67	sep = "";
68	while ((p = strsep(&bp, "|")) != NULL)
69		if (*p != '\0' && strpbrk(p, " \t") == NULL) {
70			(void)printf("%s%s", sep, p);
71			sep = "|";
72		}
73	(void)putchar(':');
74
75	/*
76	 * Output fields, transforming any dangerous characters.  Skip
77	 * empty fields or fields containing only whitespace.
78	 */
79	while ((p = strsep(&t, ":")) != NULL) {
80		while ((ch = *p) != '\0' && isspace(ch))
81			++p;
82		if (ch == '\0')
83			continue;
84		while ((ch = *p++) != '\0')
85			switch(ch) {
86			case '\033':
87				(void)printf("\\E");
88			case  ' ':		/* No spaces. */
89				(void)printf("\\040");
90				break;
91			case '!':		/* No csh history chars. */
92				(void)printf("\\041");
93				break;
94			case ',':		/* No csh history chars. */
95				(void)printf("\\054");
96				break;
97			case '"':		/* No quotes. */
98				(void)printf("\\042");
99				break;
100			case '\'':		/* No quotes. */
101				(void)printf("\\047");
102				break;
103			case '`':		/* No quotes. */
104				(void)printf("\\140");
105				break;
106			case '\\':		/* Anything following is OK. */
107			case '^':
108				(void)putchar(ch);
109				if ((ch = *p++) == '\0')
110					break;
111				/* FALLTHROUGH */
112			default:
113				(void)putchar(ch);
114		}
115		(void)putchar(':');
116	}
117}
118