1 /* $FreeBSD$ */ 2 /* $NetBSD: citrus_iconv_none.c,v 1.3 2011/05/23 14:45:44 joerg Exp $ */ 3 4 /*- 5 * Copyright (c)2003 Citrus Project, 6 * 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 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/cdefs.h> 31 #include <sys/queue.h> 32 33 #include <assert.h> 34 #include <errno.h> 35 #include <stdbool.h> 36 #include <stdlib.h> 37 #include <string.h> 38 39 #include "citrus_types.h" 40 #include "citrus_module.h" 41 #include "citrus_hash.h" 42 #include "citrus_iconv.h" 43 #include "citrus_iconv_none.h" 44 45 /* ---------------------------------------------------------------------- */ 46 47 _CITRUS_ICONV_DECLS(iconv_none); 48 _CITRUS_ICONV_DEF_OPS(iconv_none); 49 50 51 /* ---------------------------------------------------------------------- */ 52 53 int 54 _citrus_iconv_none_iconv_getops(struct _citrus_iconv_ops *ops) 55 { 56 57 memcpy(ops, &_citrus_iconv_none_iconv_ops, 58 sizeof(_citrus_iconv_none_iconv_ops)); 59 60 return (0); 61 } 62 63 static int 64 /*ARGSUSED*/ 65 _citrus_iconv_none_iconv_init_shared( 66 struct _citrus_iconv_shared * __restrict ci, 67 const char * __restrict in __unused, const char * __restrict out __unused) 68 { 69 70 ci->ci_closure = NULL; 71 return (0); 72 } 73 74 static void 75 /*ARGSUSED*/ 76 _citrus_iconv_none_iconv_uninit_shared(struct _citrus_iconv_shared *ci __unused) 77 { 78 79 } 80 81 static int 82 /*ARGSUSED*/ 83 _citrus_iconv_none_iconv_init_context(struct _citrus_iconv *cv) 84 { 85 86 cv->cv_closure = NULL; 87 return (0); 88 } 89 90 static void 91 /*ARGSUSED*/ 92 _citrus_iconv_none_iconv_uninit_context(struct _citrus_iconv *cv __unused) 93 { 94 95 } 96 97 static int 98 /*ARGSUSED*/ 99 _citrus_iconv_none_iconv_convert(struct _citrus_iconv * __restrict ci __unused, 100 char * __restrict * __restrict in, size_t * __restrict inbytes, 101 char * __restrict * __restrict out, size_t * __restrict outbytes, 102 uint32_t flags __unused, size_t * __restrict invalids) 103 { 104 size_t len; 105 int e2big; 106 107 if ((in == NULL) || (out == NULL) || (inbytes == NULL)) 108 return (0); 109 if ((*in == NULL) || (*out == NULL) || (*inbytes == 0) || (*outbytes == 0)) 110 return (0); 111 len = *inbytes; 112 e2big = 0; 113 if (*outbytes<len) { 114 e2big = 1; 115 len = *outbytes; 116 } 117 memcpy(*out, *in, len); 118 in += len; 119 *inbytes -= len; 120 out += len; 121 *outbytes -= len; 122 *invalids = 0; 123 if (e2big) 124 return (E2BIG); 125 126 return (0); 127 } 128