1/* $NetBSD: vis.h,v 1.25 2017/04/23 01:57:36 christos Exp $ */ 2/* $FreeBSD: head/contrib/libc-vis/vis.h 326307 2017-11-28 01:35:28Z brooks $ */ 3 4/*- 5 * Copyright (c) 1990, 1993 6 * The Regents of the University of California. 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 8.1 (Berkeley) 6/2/93 33 */ 34 35#ifndef _VIS_H_ 36#define _VIS_H_ 37 38#include <features.h> 39 40#ifdef _DEFAULT_SOURCE 41 42 43#include <sys/types.h> 44 45/* 46 * to select alternate encoding format 47 */ 48#define VIS_OCTAL 0x0001 /* use octal \ddd format */ 49#define VIS_CSTYLE 0x0002 /* use \[nrft0..] where appropiate */ 50 51/* 52 * to alter set of characters encoded (default is to encode all 53 * non-graphic except space, tab, and newline). 54 */ 55#define VIS_SP 0x0004 /* also encode space */ 56#define VIS_TAB 0x0008 /* also encode tab */ 57#define VIS_NL 0x0010 /* also encode newline */ 58#define VIS_WHITE (VIS_SP | VIS_TAB | VIS_NL) 59#define VIS_SAFE 0x0020 /* only encode "unsafe" characters */ 60#define VIS_DQ 0x8000 /* also encode double quotes */ 61 62/* 63 * other 64 */ 65#define VIS_NOSLASH 0x0040 /* inhibit printing '\' */ 66#define VIS_HTTP1808 0x0080 /* http-style escape % hex hex */ 67#define VIS_HTTPSTYLE 0x0080 /* http-style escape % hex hex */ 68#define VIS_GLOB 0x0100 /* encode glob(3) magic characters */ 69#define VIS_MIMESTYLE 0x0200 /* mime-style escape = HEX HEX */ 70#define VIS_HTTP1866 0x0400 /* http-style &#num; or &string; */ 71#define VIS_NOESCAPE 0x0800 /* don't decode `\' */ 72#define _VIS_END 0x1000 /* for unvis */ 73#define VIS_SHELL 0x2000 /* encode shell special characters [not glob] */ 74#define VIS_META (VIS_WHITE | VIS_GLOB | VIS_SHELL) 75#define VIS_NOLOCALE 0x4000 /* encode using the C locale */ 76 77/* 78 * unvis return codes 79 */ 80#define UNVIS_VALID 1 /* character valid */ 81#define UNVIS_VALIDPUSH 2 /* character valid, push back passed char */ 82#define UNVIS_NOCHAR 3 /* valid sequence, no character produced */ 83#define UNVIS_SYNBAD -1 /* unrecognized escape sequence */ 84#define UNVIS_ERROR -2 /* decoder in unknown state (unrecoverable) */ 85 86/* 87 * unvis flags 88 */ 89#define UNVIS_END _VIS_END /* no more characters */ 90 91#include <sys/cdefs.h> 92 93__BEGIN_DECLS 94char *vis(char *, int, int, int); 95char *nvis(char *, size_t, int, int, int); 96 97char *svis(char *, int, int, int, const char *); 98char *snvis(char *, size_t, int, int, int, const char *); 99 100int strvis(char *, const char *, int); 101int stravis(char **, const char *, int); 102int strnvis(char *, size_t, const char *, int); 103 104int strsvis(char *, const char *, int, const char *); 105int strsnvis(char *, size_t, const char *, int, const char *); 106 107int strvisx(char *, const char *, size_t, int); 108int strnvisx(char *, size_t, const char *, size_t, int); 109int strenvisx(char *, size_t, const char *, size_t, int, int *); 110 111int strsvisx(char *, const char *, size_t, int, const char *); 112int strsnvisx(char *, size_t, const char *, size_t, int, const char *); 113int strsenvisx(char *, size_t, const char *, size_t , int, const char *, 114 int *); 115 116int strunvis(char *, const char *); 117int strnunvis(char *, size_t, const char *); 118 119int strunvisx(char *, const char *, int); 120int strnunvisx(char *, size_t, const char *, int); 121 122#ifndef __LIBC12_SOURCE__ 123int unvis(char *, int, int *, int); 124#endif 125__END_DECLS 126 127#endif 128 129#endif /* !_VIS_H_ */ 130