1 /* $FreeBSD$ */ 2 /* $NetBSD: citrus_iconv_none.c,v 1.3 2011/05/23 14:45:44 joerg Exp $ */ 3 4 /*- 5 * SPDX-License-Identifier: BSD-2-Clause 6 * 7 * Copyright (c)2003 Citrus Project, 8 * All rights reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 32 #include <sys/cdefs.h> 33 #include <sys/queue.h> 34 35 #include <assert.h> 36 #include <errno.h> 37 #include <stdbool.h> 38 #include <stdlib.h> 39 #include <string.h> 40 41 #include "citrus_types.h" 42 #include "citrus_module.h" 43 #include "citrus_hash.h" 44 #include "citrus_iconv.h" 45 #include "citrus_iconv_none.h" 46 47 /* ---------------------------------------------------------------------- */ 48 49 _CITRUS_ICONV_DECLS(iconv_none); 50 _CITRUS_ICONV_DEF_OPS(iconv_none); 51 52 53 /* ---------------------------------------------------------------------- */ 54 55 int 56 _citrus_iconv_none_iconv_getops(struct _citrus_iconv_ops *ops) 57 { 58 59 memcpy(ops, &_citrus_iconv_none_iconv_ops, 60 sizeof(_citrus_iconv_none_iconv_ops)); 61 62 return (0); 63 } 64 65 static int 66 /*ARGSUSED*/ 67 _citrus_iconv_none_iconv_init_shared( 68 struct _citrus_iconv_shared * __restrict ci, 69 const char * __restrict in __unused, const char * __restrict out __unused) 70 { 71 72 ci->ci_closure = NULL; 73 return (0); 74 } 75 76 static void 77 /*ARGSUSED*/ 78 _citrus_iconv_none_iconv_uninit_shared(struct _citrus_iconv_shared *ci __unused) 79 { 80 81 } 82 83 static int 84 /*ARGSUSED*/ 85 _citrus_iconv_none_iconv_init_context(struct _citrus_iconv *cv) 86 { 87 88 cv->cv_closure = NULL; 89 return (0); 90 } 91 92 static void 93 /*ARGSUSED*/ 94 _citrus_iconv_none_iconv_uninit_context(struct _citrus_iconv *cv __unused) 95 { 96 97 } 98 99 static int 100 /*ARGSUSED*/ 101 _citrus_iconv_none_iconv_convert(struct _citrus_iconv * __restrict ci __unused, 102 char * __restrict * __restrict in, size_t * __restrict inbytes, 103 char * __restrict * __restrict out, size_t * __restrict outbytes, 104 uint32_t flags __unused, size_t * __restrict invalids) 105 { 106 size_t len; 107 int e2big; 108 109 if ((in == NULL) || (out == NULL) || (inbytes == NULL)) 110 return (0); 111 if ((*in == NULL) || (*out == NULL) || (*inbytes == 0) || (*outbytes == 0)) 112 return (0); 113 len = *inbytes; 114 e2big = 0; 115 if (*outbytes<len) { 116 e2big = 1; 117 len = *outbytes; 118 } 119 memcpy(*out, *in, len); 120 in += len; 121 *inbytes -= len; 122 out += len; 123 *outbytes -= len; 124 *invalids = 0; 125 if (e2big) 126 return (E2BIG); 127 128 return (0); 129 } 130