IABSD.fr/src/include/vis.h

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• Author : millert
  Date : 2015-07-20 01:52:27
  Hash : 5dd668c8
  Message : Add VIS_DQ to escape double quotes. OK deraadt@ semarie@ reyk@

• include/vis.h

• /*	$OpenBSD: vis.h,v 1.15 2015/07/20 01:52:27 millert Exp $	*/
  /*	$NetBSD: vis.h,v 1.4 1994/10/26 00:56:41 cgd Exp $	*/
  
  /*-
   * Copyright (c) 1990 The Regents of the University of California.
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   *	@(#)vis.h	5.9 (Berkeley) 4/3/91
   */
  
  #ifndef _VIS_H_
  #define	_VIS_H_
  
  /*
   * to select alternate encoding format
   */
  #define	VIS_OCTAL	0x01	/* use octal \ddd format */
  #define	VIS_CSTYLE	0x02	/* use \[nrft0..] where appropriate */
  
  /*
   * to alter set of characters encoded (default is to encode all
   * non-graphic except space, tab, and newline).
   */
  #define	VIS_SP		0x04	/* also encode space */
  #define	VIS_TAB		0x08	/* also encode tab */
  #define	VIS_NL		0x10	/* also encode newline */
  #define	VIS_WHITE	(VIS_SP | VIS_TAB | VIS_NL)
  #define	VIS_SAFE	0x20	/* only encode "unsafe" characters */
  #define	VIS_DQ		0x200	/* backslash-escape double quotes */
  #define	VIS_ALL		0x400	/* encode all characters */
  
  /*
   * other
   */
  #define	VIS_NOSLASH	0x40	/* inhibit printing '\' */
  #define	VIS_GLOB	0x100	/* encode glob(3) magics and '#' */
  
  /*
   * unvis return codes
   */
  #define	UNVIS_VALID	 1	/* character valid */
  #define	UNVIS_VALIDPUSH	 2	/* character valid, push back passed char */
  #define	UNVIS_NOCHAR	 3	/* valid sequence, no character produced */
  #define	UNVIS_SYNBAD	-1	/* unrecognized escape sequence */
  #define	UNVIS_ERROR	-2	/* decoder in unknown state (unrecoverable) */
  
  /*
   * unvis flags
   */
  #define	UNVIS_END	1	/* no more characters */
  
  #include <sys/cdefs.h>
  
  __BEGIN_DECLS
  char	*vis(char *, int, int, int);
  int	strvis(char *, const char *, int);
  int	stravis(char **, const char *, int);
  int	strnvis(char *, const char *, size_t, int)
  		__attribute__ ((__bounded__(__string__,1,3)));
  int	strvisx(char *, const char *, size_t, int)
  		__attribute__ ((__bounded__(__string__,1,3)));
  int	strunvis(char *, const char *);
  int	unvis(char *, char, int *, int);
  ssize_t strnunvis(char *, const char *, size_t)
  		__attribute__ ((__bounded__(__string__,1,3)));
  
  __END_DECLS
  
  #endif /* !_VIS_H_ */