1/* $NetBSD: vis.h,v 1.26 2022/05/20 21:31:24 andvar Exp $ */ 2 3/*- 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)vis.h 8.1 (Berkeley) 6/2/93 32 */ 33 34#ifndef _VIS_H_ 35#define _VIS_H_ 36 37#include <sys/types.h> 38 39/* 40 * to select alternate encoding format 41 */ 42#define VIS_OCTAL 0x0001 /* use octal \ddd format */ 43#define VIS_CSTYLE 0x0002 /* use \[nrft0..] where appropriate */ 44 45/* 46 * to alter set of characters encoded (default is to encode all 47 * non-graphic except space, tab, and newline). 48 */ 49#define VIS_SP 0x0004 /* also encode space */ 50#define VIS_TAB 0x0008 /* also encode tab */ 51#define VIS_NL 0x0010 /* also encode newline */ 52#define VIS_WHITE (VIS_SP | VIS_TAB | VIS_NL) 53#define VIS_SAFE 0x0020 /* only encode "unsafe" characters */ 54#define VIS_DQ 0x8000 /* also encode double quotes */ 55 56/* 57 * other 58 */ 59#define VIS_NOSLASH 0x0040 /* inhibit printing '\' */ 60#define VIS_HTTP1808 0x0080 /* http-style escape % hex hex */ 61#define VIS_HTTPSTYLE 0x0080 /* http-style escape % hex hex */ 62#define VIS_MIMESTYLE 0x0100 /* mime-style escape = HEX HEX */ 63#define VIS_HTTP1866 0x0200 /* http-style &#num; or &string; */ 64#define VIS_NOESCAPE 0x0400 /* don't decode `\' */ 65#define _VIS_END 0x0800 /* for unvis */ 66#define VIS_GLOB 0x1000 /* encode glob(3) magic characters */ 67#define VIS_SHELL 0x2000 /* encode shell special characters [not glob] */ 68#define VIS_META (VIS_WHITE | VIS_GLOB | VIS_SHELL) 69#define VIS_NOLOCALE 0x4000 /* encode using the C locale */ 70 71/* 72 * unvis return codes 73 */ 74#define UNVIS_VALID 1 /* character valid */ 75#define UNVIS_VALIDPUSH 2 /* character valid, push back passed char */ 76#define UNVIS_NOCHAR 3 /* valid sequence, no character produced */ 77#define UNVIS_SYNBAD -1 /* unrecognized escape sequence */ 78#define UNVIS_ERROR -2 /* decoder in unknown state (unrecoverable) */ 79 80/* 81 * unvis flags 82 */ 83#define UNVIS_END _VIS_END /* no more characters */ 84 85#include <sys/cdefs.h> 86 87__BEGIN_DECLS 88char *vis(char *, int, int, int); 89char *nvis(char *, size_t, int, int, int); 90 91char *svis(char *, int, int, int, const char *); 92char *snvis(char *, size_t, int, int, int, const char *); 93 94int strvis(char *, const char *, int); 95int stravis(char **, const char *, int); 96int strnvis(char *, size_t, const char *, int); 97 98int strsvis(char *, const char *, int, const char *); 99int strsnvis(char *, size_t, const char *, int, const char *); 100 101int strvisx(char *, const char *, size_t, int); 102int strnvisx(char *, size_t, const char *, size_t, int); 103int strenvisx(char *, size_t, const char *, size_t, int, int *); 104 105int strsvisx(char *, const char *, size_t, int, const char *); 106int strsnvisx(char *, size_t, const char *, size_t, int, const char *); 107int strsenvisx(char *, size_t, const char *, size_t , int, const char *, 108 int *); 109 110int strunvis(char *, const char *); 111int strnunvis(char *, size_t, const char *); 112 113int strunvisx(char *, const char *, int); 114int strnunvisx(char *, size_t, const char *, int); 115 116#ifndef __LIBC12_SOURCE__ 117int unvis(char *, int, int *, int) __RENAME(__unvis50); 118#endif 119__END_DECLS 120 121#endif /* !_VIS_H_ */ 122