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      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)
     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 
     82 char	*vis(char *, int, int, int);
     83 int	strvis(char *, const char *, int);
     84 int	strnvis(char *, const char *, size_t, int)
     85 		__attribute__ ((__bounded__(__string__,1,3)));
     86 int	strvisx(char *, const char *, size_t, int)
     87 		__attribute__ ((__bounded__(__string__,1,3)));
     88 int	strunvis(char *, const char *);
     89 int	unvis(char *, char, int *, int);
     90 ssize_t strnunvis(char *, const char *, size_t)
     91 		__attribute__ ((__bounded__(__string__,1,3)));
     92 
     93 #endif /* !_VIS_H_ */
     94 
     95 #endif /* !HAVE_STRNVIS */
     96