1 /* $NetBSD: citrus_iconv_none.c,v 1.3 2011/05/23 14:45:44 joerg Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-2-Clause 5 * 6 * Copyright (c)2003 Citrus Project, 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 #include <sys/queue.h> 33 34 #include <assert.h> 35 #include <errno.h> 36 #include <stdbool.h> 37 #include <stdlib.h> 38 #include <string.h> 39 40 #include "citrus_types.h" 41 #include "citrus_module.h" 42 #include "citrus_hash.h" 43 #include "citrus_iconv.h" 44 #include "citrus_iconv_none.h" 45 46 /* ---------------------------------------------------------------------- */ 47 48 _CITRUS_ICONV_DECLS(iconv_none); 49 _CITRUS_ICONV_DEF_OPS(iconv_none); 50 51 52 /* ---------------------------------------------------------------------- */ 53 54 int 55 _citrus_iconv_none_iconv_getops(struct _citrus_iconv_ops *ops) 56 { 57 58 memcpy(ops, &_citrus_iconv_none_iconv_ops, 59 sizeof(_citrus_iconv_none_iconv_ops)); 60 61 return (0); 62 } 63 64 static int 65 /*ARGSUSED*/ 66 _citrus_iconv_none_iconv_init_shared( 67 struct _citrus_iconv_shared * __restrict ci, 68 const char * __restrict in __unused, const char * __restrict out __unused) 69 { 70 71 ci->ci_closure = NULL; 72 return (0); 73 } 74 75 static void 76 /*ARGSUSED*/ 77 _citrus_iconv_none_iconv_uninit_shared(struct _citrus_iconv_shared *ci __unused) 78 { 79 80 } 81 82 static int 83 /*ARGSUSED*/ 84 _citrus_iconv_none_iconv_init_context(struct _citrus_iconv *cv) 85 { 86 87 cv->cv_closure = NULL; 88 return (0); 89 } 90 91 static void 92 /*ARGSUSED*/ 93 _citrus_iconv_none_iconv_uninit_context(struct _citrus_iconv *cv __unused) 94 { 95 96 } 97 98 static int 99 /*ARGSUSED*/ 100 _citrus_iconv_none_iconv_convert(struct _citrus_iconv * __restrict ci __unused, 101 char * __restrict * __restrict in, size_t * __restrict inbytes, 102 char * __restrict * __restrict out, size_t * __restrict outbytes, 103 uint32_t flags __unused, size_t * __restrict invalids) 104 { 105 size_t len; 106 int e2big; 107 108 if ((in == NULL) || (out == NULL) || (inbytes == NULL)) 109 return (0); 110 if ((*in == NULL) || (*out == NULL) || (*inbytes == 0) || (*outbytes == 0)) 111 return (0); 112 len = *inbytes; 113 e2big = 0; 114 if (*outbytes<len) { 115 e2big = 1; 116 len = *outbytes; 117 } 118 memcpy(*out, *in, len); 119 in += len; 120 *inbytes -= len; 121 out += len; 122 *outbytes -= len; 123 *invalids = 0; 124 if (e2big) 125 return (E2BIG); 126 127 return (0); 128 } 129