mirror of
https://github.com/ibm-s390-linux/s390-tools.git
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b627b8d8e1
This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
157 lines
4.5 KiB
C
157 lines
4.5 KiB
C
/*
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* cmsfs-fuse - CMS EDF filesystem support for Linux
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*
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* EBCDIC to ASCII conversion:
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* EDF uses an EBCDIC codepage based on 037 with some modifications.
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*
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* Copyright IBM Corp. 2010, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#ifndef _EBCDIC_H
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#define _EBCDIC_H
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#include <stdlib.h>
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#include <sys/types.h>
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/*
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* EBCDIC 037 -> ISO8859-1
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* changes:
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* 0x5f: 0xaa -> 0x5e ^
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* 0xad: 0x07 -> 0x5b [
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* 0xbd: 0x07 -> 0x5d ]
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*/
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static char ebc2asc[256] = {
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/* 0x00 */
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0x00, 0x01, 0x02, 0x03, 0x07, 0x09, 0x07, 0x7F,
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0x07, 0x07, 0x07, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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/* 0x10 */
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0x10, 0x11, 0x12, 0x13, 0x07, 0x0A, 0x08, 0x07,
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0x18, 0x19, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
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/* 0x20 */
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0x07, 0x07, 0x1C, 0x07, 0x07, 0x0A, 0x17, 0x1B,
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0x07, 0x07, 0x07, 0x07, 0x07, 0x05, 0x06, 0x07,
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/* 0x30 */
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0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04,
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0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A,
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/* 0x40 */
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0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86,
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0x87, 0xA4, 0x9B, 0x2E, 0x3C, 0x28, 0x2B, 0x7C,
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/* 0x50 */
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0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07,
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0x8D, 0xE1, 0x21, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
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/* 0x60 */
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0x2D, 0x2F, 0x07, 0x8E, 0x07, 0x07, 0x07, 0x8F,
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0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
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/* 0x70 */
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0x07, 0x90, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
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0x70, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
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/* 0x80 */
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0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
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0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1,
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/* 0x90 */
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0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
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0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07,
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/* 0xa0 */
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0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
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0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x5B, 0x07, 0x07,
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/* 0xb0 */
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0x5E, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC,
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0xAB, 0x07, 0x5B, 0x5D, 0x07, 0x5D, 0x07, 0x07,
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/* 0xc0 */
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0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
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0x48, 0x49, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07,
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/* 0xd0 */
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0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
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0x51, 0x52, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98,
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/* 0xe0 */
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0x5C, 0xF6, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
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0x59, 0x5A, 0xFD, 0x07, 0x99, 0x07, 0x07, 0x07,
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/* 0xf0 */
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
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0x38, 0x39, 0x07, 0x07, 0x9A, 0x07, 0x07, 0x07
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};
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/* ISO8859-1 -> EBCDIC 037 */
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static char asc2ebc[256] = {
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/* 0x00 */
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0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F,
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0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
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/* 0x10 */
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0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26,
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0x18, 0x19, 0x3F, 0x27, 0x22, 0x1D, 0x1E, 0x1F,
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/* 0x20 */
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0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D,
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0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
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/* 0x30 */
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0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
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0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
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/* 0x40 */
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0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
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0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
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/* 0x50 */
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0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
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0xE7, 0xE8, 0xE9, 0xBA, 0xE0, 0xBB, 0xB0, 0x6D,
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/* 0x60 */
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0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
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0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
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/* 0x70 */
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0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
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0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
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/* 0x80 */
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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/* 0x90 */
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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/* 0xa0 */
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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/* 0xb0 */
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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/* 0xc0 */
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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/* 0xd0 */
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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/* 0xe0 */
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0x3F, 0x59, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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/* 0xf0 */
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0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
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0x90, 0x3F, 0x3F, 0x3F, 0x3F, 0xEA, 0x3F, 0xFF
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};
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#define EBCDIC_ENCODE 0x0
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#define EBCDIC_DECODE 0x1
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static inline void a2e(char *dst, const char *src, int len, int to)
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{
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char *conv;
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int i;
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if (to == EBCDIC_ENCODE)
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conv = asc2ebc;
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else
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conv = ebc2asc;
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for (i = 0; i < len; i++)
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dst[i] = conv[(unsigned int)src[i]];
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}
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static inline void ebcdic_enc(char *dst, const char *src, int len)
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{
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a2e(dst, src, len, EBCDIC_ENCODE);
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}
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static inline void ebcdic_dec(char *dst, const char *src, int len)
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{
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a2e(dst, src, len, EBCDIC_DECODE);
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}
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#endif
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