170 lines
5.6 KiB
C
170 lines
5.6 KiB
C
/* charsets.c
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* Routines for handling character sets
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <glib.h>
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#include "charsets.h"
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/*
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* Wikipedia's "Character encoding" template, giving a pile of character encodings and
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* Wikipedia pages for them:
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*
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* http://en.wikipedia.org/wiki/Template:Character_encoding
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*
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* Unicode character encoding model:
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*
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* http://www.unicode.org/reports/tr17/
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*
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* International Components for Unicode character set mapping tables:
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*
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* http://site.icu-project.org/charts/charset
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*
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* MSDN information on code pages:
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*
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* http://msdn.microsoft.com/en-us/library/dd317752(v=VS.85).aspx
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*
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* ASCII-based code pages, from IBM:
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*
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* http://www-01.ibm.com/software/globalization/cp/cp_cpgid.html
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*
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* EBCDIC code pages, from IBM:
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*
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* http://www-03.ibm.com/systems/i/software/globalization/codepages.html
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*/
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/* ASCII/EBCDIC conversion tables from
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* http://www.room42.com/store/computer_center/code_tables.shtml
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*/
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#if 0
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static guint8 ASCII_translate_EBCDIC [ 256 ] = {
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
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0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
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0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
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0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D, 0x4D,
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0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
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0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8,
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0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
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0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8,
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0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
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0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7,
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0xE8, 0xE9, 0xAD, 0xE0, 0xBD, 0x5F, 0x6D,
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0x7D, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88,
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0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
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0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7,
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0xA8, 0xA9, 0xC0, 0x6A, 0xD0, 0xA1, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B,
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0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B, 0x4B
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};
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void
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ASCII_to_EBCDIC(guint8 *buf, guint bytes)
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{
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guint i;
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guint8 *bufptr;
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bufptr = buf;
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for (i = 0; i < bytes; i++, bufptr++) {
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*bufptr = ASCII_translate_EBCDIC[*bufptr];
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}
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}
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guint8
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ASCII_to_EBCDIC1(guint8 c)
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{
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return ASCII_translate_EBCDIC[c];
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}
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#endif
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static guint8 EBCDIC_translate_ASCII [ 256 ] = {
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
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0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
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0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F,
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
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0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
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0x2E, 0x2E, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
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0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x2E, 0x3F,
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0x20, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x2E, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
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0x26, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
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0x2D, 0x2F, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x7C, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
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0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
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0x2E, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
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0x69, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71,
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0x72, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
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0x7A, 0x2E, 0x2E, 0x2E, 0x5B, 0x2E, 0x2E,
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0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x2E, 0x2E, 0x2E, 0x2E, 0x5D, 0x2E, 0x2E,
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0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
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0x49, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51,
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0x52, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x5C, 0x2E, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59,
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0x5A, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E,
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
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0x39, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E, 0x2E
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};
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void
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EBCDIC_to_ASCII(guint8 *buf, guint bytes)
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{
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guint i;
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guint8 *bufptr;
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bufptr = buf;
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for (i = 0; i < bytes; i++, bufptr++) {
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*bufptr = EBCDIC_translate_ASCII[*bufptr];
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}
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}
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guint8
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EBCDIC_to_ASCII1(guint8 c)
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{
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return EBCDIC_translate_ASCII[c];
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}
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