1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * ICU License - ICU 1.8.1 and later 23 * 24 * COPYRIGHT AND PERMISSION NOTICE 25 * 26 * Copyright (c) 1995-2005 International Business Machines Corporation and others 27 * All rights reserved. 28 * 29 * Permission is hereby granted, free of charge, to any person obtaining a 30 * copy of this software and associated documentation files (the 31 * "Software"), to deal in the Software without restriction, including 32 * without limitation the rights to use, copy, modify, merge, publish, 33 * distribute, and/or sell copies of the Software, and to permit persons 34 * to whom the Software is furnished to do so, provided that the above 35 * copyright notice(s) and this permission notice appear in all copies of 36 * the Software and that both the above copyright notice(s) and this 37 * permission notice appear in supporting documentation. 38 * 39 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 40 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 41 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT 42 * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 43 * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL 44 * INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING 45 * FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, 46 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION 47 * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 48 * 49 * Except as contained in this notice, the name of a copyright holder 50 * shall not be used in advertising or otherwise to promote the sale, use 51 * or other dealings in this Software without prior written authorization 52 * of the copyright holder. 53 * 54 * -------------------------------------------------------------------------- 55 * All trademarks and registered trademarks mentioned herein are the property 56 * of their respective owners. 57 */ 58 59 /* 60 * Copyright (c) 1994, Sun Microsystems, Inc. 61 * Copyright (c) 1994, Nihon Sun Microsystems K.K. 62 */ 63 64 #include <stdio.h> 65 #include <stdlib.h> 66 #include <errno.h> 67 #include <euc.h> 68 #include "japanese.h" 69 #include "table.IBM-500.8859-1.c" 70 71 /* 72 * struct _cv_state; to keep status 73 */ 74 struct _icv_state { 75 int _st_cset; 76 int _st_stat; 77 }; 78 79 extern int errno; 80 81 /* 82 * Open; called from iconv_open(); as taken unchanged from @(#)ISO-2022-JP%SJIS. 83 */ 84 void * 85 _icv_open() 86 { 87 struct _icv_state *st; 88 89 if ((st = (struct _icv_state *)malloc(sizeof(struct _icv_state))) 90 == NULL) 91 return ((void *)ERR_RETURN); 92 93 st->_st_cset = CS_0; 94 st->_st_stat = ST_INIT; 95 96 return (st); 97 } 98 99 100 /* 101 * Close; called from iconv_close(); as taken unchanged from @(#)ISO-2022-JP%SJIS. 102 */ 103 void 104 _icv_close(struct _icv_state *st) 105 { 106 free(st); 107 } 108 109 110 111 /* 112 * Actual conversion; called from iconv() 113 */ 114 size_t 115 _icv_iconv(struct _icv_state *st, char **inbuf, size_t *inbytesleft, 116 char **outbuf, size_t *outbytesleft) 117 { 118 int cset, stat; 119 unsigned char *op, ic; 120 char *ip; 121 size_t ileft, oleft; 122 size_t retval; 123 124 cset = st->_st_cset; 125 stat = st->_st_stat; 126 127 if ((inbuf == 0) || (*inbuf == 0)) { 128 cset = CS_0; 129 stat = ST_INIT; 130 op = (unsigned char *)*outbuf; 131 oleft = *outbytesleft; 132 retval = 0; 133 goto ret2; 134 } 135 136 ip = *inbuf; 137 op = (unsigned char *)*outbuf; 138 ileft = *inbytesleft; 139 oleft = *outbytesleft; 140 141 /* Everything down to here was taken unchanged from @(#)ISO-2022-JP%SJIS. 142 ======================================================================= 143 144 * 145 * Main loop; basically 1 loop per 1 input byte 146 */ 147 148 while (ileft > 0) 149 { 150 GET(ic); 151 /* 152 If the char is one of the following [ / ] { | } then convert 153 it to its corresponding value. In all other cases if the char 154 is greater than octal \178 ( ie a high bit char) convert it 155 to an underscore (_), as it has no mapping to 7 bit ASCII. 156 Otrherwise the char is the same in both cose sets. 157 */ 158 ic=__cp500_to_iso[ic]; 159 160 161 PUT(ic); 162 /* 163 Put the converted character into the output buffer, and decrement 164 the count of chars left in both the in and out buffers. 165 If we have no space left in the out buffer, but we have no reached 166 the end of the input buffer. We return what we have, and set the 167 errno (Error) to E2BIG. 168 */ 169 if ((oleft < 1) && (ileft > 0)) 170 { 171 errno = E2BIG; 172 retval = ERR_RETURN; 173 goto ret; 174 } 175 176 177 } 178 /* 179 We only get here if the end of the in buffer has been reached, we therefore return the 180 value 0 to denote that we have sucesfully converted the inbuffer. 181 */ 182 retval = ileft; 183 184 /* Taken unchanged from @(#)ISO-2022-JP%SJIS. */ 185 186 ret: 187 st->_st_cset = cset; 188 st->_st_stat = stat; 189 *inbuf = ip; 190 *inbytesleft = ileft; 191 ret2: 192 *outbuf = (char *)op; 193 *outbytesleft = oleft; 194 195 return (retval); 196 } 197