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 * COPYRIGHT AND PERMISSION NOTICE 23 * 24 * Copyright (c) 1991-2005 Unicode, Inc. All rights reserved. Distributed 25 * under the Terms of Use in http://www.unicode.org/copyright.html. 26 * 27 * This file has been modified by Sun Microsystems, Inc. 28 */ 29 /* 30 * Copyright (c) 1994, 1995 by Sun Microsystems, Inc. 31 * Copyright (c) 1994, Nihon Sun Microsystems K.K. 32 * All Rights Reserved. 33 */ 34 35 /* 36 Converts ASCII ISO 8859-1 to EBCDIC IBM-850. 37 By Greg Nakhimovsky, Sun Microsystems. 38 April, 1996. 39 */ 40 #include <stdio.h> 41 #include <stdlib.h> 42 #include <errno.h> 43 #include <ctype.h> 44 45 #define MAGIC_NUMBER (0x216513) 46 #define ERR_RETURN (-1) /* result code on error */ 47 48 #define GET(c) ((c) = *ip, ip++, ileft--) 49 #define PUT(c) (*op = (c), op++, oleft--) 50 #define UNGET() (ip--, ileft++) 51 52 53 /* 54 * Open; called from iconv_open() 55 */ 56 void * 57 _icv_open() 58 { 59 return ((void*)MAGIC_NUMBER); 60 } 61 62 63 /* 64 * Close; called from iconv_close 65 */ 66 void 67 _icv_close(int* cd) 68 { 69 if (!cd || cd != (int*)MAGIC_NUMBER) 70 errno = EBADF; 71 } 72 73 74 /* 75 * Actual conversion; called from iconv() 76 */ 77 size_t 78 _icv_iconv(int* cd, char **inbuf, size_t *inbytesleft, 79 char **outbuf, size_t *outbytesleft) 80 { 81 unsigned char *ip, ic, *op; 82 size_t ileft, oleft; 83 size_t retval = 0; 84 85 static unsigned char map[256] = { 86 0x00 , 0x01 , 0x02 , 0x03 , 0x04 , 0x05 , 0x06 , 0x07 , 0x08 , 0x09 , 87 0x0A , 0x0B , 0x0C , 0x0D , 0x0E , 0x0F , 0x10 , 0x11 , 0x12 , 0x13 , 88 0x14 , 0x15 , 0x16 , 0x17 , 0x18 , 0x19 , 0x7F , 0x1B , 0x1A , 0x1D , 89 0x1E , 0x1F , 0x20 , 0x21 , 0x22 , 0x23 , 0x24 , 0x25 , 0x26 , 0x27 , 90 0x28 , 0x29 , 0x2A , 0x2B , 0x2C , 0x2D , 0x2E , 0x2F , 0x30 , 0x31 , 91 0x32 , 0x33 , 0x34 , 0x35 , 0x36 , 0x37 , 0x38 , 0x39 , 0x3A , 0x3B , 92 0x3C , 0x3D , 0x3E , 0x3F , 0x40 , 0x41 , 0x42 , 0x43 , 0x44 , 0x45 , 93 0x46 , 0x47 , 0x48 , 0x49 , 0x4A , 0x4B , 0x4C , 0x4D , 0x4E , 0x4F , 94 0x50 , 0x51 , 0x52 , 0x53 , 0x54 , 0x55 , 0x56 , 0x57 , 0x58 , 0x59 , 95 0x5A , 0x5B , 0x5C , 0x5D , 0x5E , 0x5F , 0x60 , 0x61 , 0x62 , 0x63 , 96 0x64 , 0x65 , 0x66 , 0x67 , 0x68 , 0x69 , 0x6A , 0x6B , 0x6C , 0x6D , 97 0x6E , 0x6F , 0x70 , 0x71 , 0x72 , 0x73 , 0x74 , 0x75 , 0x76 , 0x77 , 98 0x78 , 0x79 , 0x7A , 0x7B , 0x7C , 0x7D , 0x7E , 0x1C , 0x1A , 0x1A , 99 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 100 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 101 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 0x1A , 102 0xFF , 0xAD , 0xBD , 0x9C , 0xCF , 0xBE , 0xDD , 0xF5 , 0xF9 , 0xB8 , 103 0xA6 , 0xAE , 0xAA , 0xF0 , 0xA9 , 0xEE , 0xF8 , 0xF1 , 0xFD , 0xFC , 104 0xEF , 0xE6 , 0xF4 , 0xFA , 0xF7 , 0xFB , 0xA7 , 0xAF , 0xAC , 0xAB , 105 0xF3 , 0xA8 , 0xB7 , 0xB5 , 0xB6 , 0xC7 , 0x8E , 0x8F , 0x92 , 0x80 , 106 0xD4 , 0x90 , 0xD2 , 0xD3 , 0xDE , 0xD6 , 0xD7 , 0xD8 , 0xD1 , 0xA5 , 107 0xE3 , 0xE0 , 0xE2 , 0xE5 , 0x99 , 0x9E , 0x9D , 0xEB , 0xE9 , 0xEA , 108 0x9A , 0xED , 0xE8 , 0xE1 , 0x85 , 0xA0 , 0x83 , 0xC6 , 0x84 , 0x86 , 109 0x91 , 0x87 , 0x8A , 0x82 , 0x88 , 0x89 , 0x8D , 0xA1 , 0x8C , 0x8B , 110 0xD0 , 0xA4 , 0x95 , 0xA2 , 0x93 , 0xE4 , 0x94 , 0xF6 , 0x9B , 0x97 , 111 0xA3 , 0x96 , 0x81 , 0xEC , 0xE7 , 0x98 }; 112 113 if (!cd || cd != (int*)MAGIC_NUMBER) 114 { 115 errno = EBADF; 116 return((size_t)ERR_RETURN); 117 } 118 119 if ((inbuf == 0) || (*inbuf == 0)) 120 return((size_t)0); 121 122 ip = (unsigned char*)*inbuf; 123 op = (unsigned char *)*outbuf; 124 ileft = *inbytesleft; 125 oleft = *outbytesleft; 126 127 /* 128 * Main loop; basically 1 loop per 1 input byte 129 */ 130 131 while (ileft > 0) { 132 GET(ic); 133 if (oleft < 1) { 134 UNGET(); 135 errno = E2BIG; 136 retval = ERR_RETURN; 137 goto ret; 138 } 139 PUT(map[ic]); 140 retval++; 141 } 142 143 ret: 144 *inbuf = (char *)ip; 145 *inbytesleft = ileft; 146 *outbuf = (char *)op; 147 *outbytesleft = oleft; 148 149 return (retval); 150 } 151