vis.h revision 323121 
1/*	$OpenBSD: vis.h,v 1.11 2005/08/09 19:38:31 millert Exp $	*/
2/*	$NetBSD: vis.h,v 1.4 1994/10/26 00:56:41 cgd Exp $	*/
3
4/*-
5 * Copyright (c) 1990 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 *	@(#)vis.h	5.9 (Berkeley) 4/3/91
33 */
34
35/* OPENBSD ORIGINAL: include/vis.h */
36
37#include "includes.h"
38#if !defined(HAVE_STRNVIS) || defined(BROKEN_STRNVIS)
39
40#ifndef _VIS_H_
41#define	_VIS_H_
42
43#include <sys/types.h>
44#include <limits.h>
45
46/*
47 * to select alternate encoding format
48 */
49#define	VIS_OCTAL	0x01	/* use octal \ddd format */
50#define	VIS_CSTYLE	0x02	/* use \[nrft0..] where appropriate */
51
52/*
53 * to alter set of characters encoded (default is to encode all
54 * non-graphic except space, tab, and newline).
55 */
56#define	VIS_SP		0x04	/* also encode space */
57#define	VIS_TAB		0x08	/* also encode tab */
58#define	VIS_NL		0x10	/* also encode newline */
59#define	VIS_WHITE	(VIS_SP | VIS_TAB | VIS_NL)
60#define	VIS_SAFE	0x20	/* only encode "unsafe" characters */
61
62/*
63 * other
64 */
65#define	VIS_NOSLASH	0x40	/* inhibit printing '\' */
66#define	VIS_GLOB	0x100	/* encode glob(3) magics and '#' */
67
68/*
69 * unvis return codes
70 */
71#define	UNVIS_VALID	 1	/* character valid */
72#define	UNVIS_VALIDPUSH	 2	/* character valid, push back passed char */
73#define	UNVIS_NOCHAR	 3	/* valid sequence, no character produced */
74#define	UNVIS_SYNBAD	-1	/* unrecognized escape sequence */
75#define	UNVIS_ERROR	-2	/* decoder in unknown state (unrecoverable) */
76
77/*
78 * unvis flags
79 */
80#define	UNVIS_END	1	/* no more characters */
81
82char	*vis(char *, int, int, int);
83int	strvis(char *, const char *, int);
84int	strnvis(char *, const char *, size_t, int)
85		__attribute__ ((__bounded__(__string__,1,3)));
86int	strvisx(char *, const char *, size_t, int)
87		__attribute__ ((__bounded__(__string__,1,3)));
88int	strunvis(char *, const char *);
89int	unvis(char *, char, int *, int);
90ssize_t strnunvis(char *, const char *, size_t)
91		__attribute__ ((__bounded__(__string__,1,3)));
92
93#endif /* !_VIS_H_ */
94
95#endif /* !HAVE_STRNVIS || BROKEN_STRNVIS */
96