1/*-
2 * Copyright (c) 1991, 1993
3 *	The Regents of the University of California.  All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Keith Muller of the University of California, San Diego and Lance
7 * Visser of Convex Computer Corporation.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 *    must display the following acknowledgement:
19 *	This product includes software developed by the University of
20 *	California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 *    may be used to endorse or promote products derived from this software
23 *    without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38#include <sys/cdefs.h>
39#ifndef lint
40#if 0
41static char sccsid[] = "@(#)conv_tab.c	8.1 (Berkeley) 5/31/93";
42#endif
43__used static const char rcsid[] =
44  "$FreeBSD: src/bin/dd/conv_tab.c,v 1.10 1999/09/12 16:51:53 green Exp $";
45#endif /* not lint */
46
47#include <sys/types.h>
48
49/*
50 * There are currently six tables:
51 *
52 *	ebcdic		-> ascii	32V		conv=oldascii
53 *	ascii		-> ebcdic	32V		conv=oldebcdic
54 *	ascii		-> ibm ebcdic	32V		conv=oldibm
55 *
56 *	ebcdic		-> ascii	POSIX/S5	conv=ascii
57 *	ascii		-> ebcdic	POSIX/S5	conv=ebcdic
58 *	ascii		-> ibm ebcdic	POSIX/S5	conv=ibm
59 *
60 * Other tables are built from these if multiple conversions are being
61 * done.
62 *
63 * Tables used for conversions to/from IBM and EBCDIC to support an extension
64 * to POSIX P1003.2/D11. The tables referencing POSIX contain data extracted
65 * from tables 4-3 and 4-4 in P1003.2/Draft 11.  The historic tables were
66 * constructed by running against a file with all possible byte values.
67 *
68 * More information can be obtained in "Correspondences of 8-Bit and Hollerith
69 * Codes for Computer Environments-A USASI Tutorial", Communications of the
70 * ACM, Volume 11, Number 11, November 1968, pp. 783-789.
71 */
72
73u_char casetab[256];
74
75/* EBCDIC to ASCII -- 32V compatible. */
76const u_char e2a_32V[] = {
77	0000, 0001, 0002, 0003, 0234, 0011, 0206, 0177,		/* 0000 */
78	0227, 0215, 0216, 0013, 0014, 0015, 0016, 0017,		/* 0010 */
79	0020, 0021, 0022, 0023, 0235, 0205, 0010, 0207,		/* 0020 */
80	0030, 0031, 0222, 0217, 0034, 0035, 0036, 0037,		/* 0030 */
81	0200, 0201, 0202, 0203, 0204, 0012, 0027, 0033,		/* 0040 */
82	0210, 0211, 0212, 0213, 0214, 0005, 0006, 0007,		/* 0050 */
83	0220, 0221, 0026, 0223, 0224, 0225, 0226, 0004,		/* 0060 */
84	0230, 0231, 0232, 0233, 0024, 0025, 0236, 0032,		/* 0070 */
85	0040, 0240, 0241, 0242, 0243, 0244, 0245, 0246,		/* 0100 */
86	0247, 0250, 0133, 0056, 0074, 0050, 0053, 0041,		/* 0110 */
87	0046, 0251, 0252, 0253, 0254, 0255, 0256, 0257,		/* 0120 */
88	0260, 0261, 0135, 0044, 0052, 0051, 0073, 0136,		/* 0130 */
89	0055, 0057, 0262, 0263, 0264, 0265, 0266, 0267,		/* 0140 */
90	0270, 0271, 0174, 0054, 0045, 0137, 0076, 0077,		/* 0150 */
91	0272, 0273, 0274, 0275, 0276, 0277, 0300, 0301,		/* 0160 */
92	0302, 0140, 0072, 0043, 0100, 0047, 0075, 0042,		/* 0170 */
93	0303, 0141, 0142, 0143, 0144, 0145, 0146, 0147,		/* 0200 */
94	0150, 0151, 0304, 0305, 0306, 0307, 0310, 0311,		/* 0210 */
95	0312, 0152, 0153, 0154, 0155, 0156, 0157, 0160,		/* 0220 */
96	0161, 0162, 0313, 0314, 0315, 0316, 0317, 0320,		/* 0230 */
97	0321, 0176, 0163, 0164, 0165, 0166, 0167, 0170,		/* 0240 */
98	0171, 0172, 0322, 0323, 0324, 0325, 0326, 0327,		/* 0250 */
99	0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337,		/* 0260 */
100	0340, 0341, 0342, 0343, 0344, 0345, 0346, 0347,		/* 0270 */
101	0173, 0101, 0102, 0103, 0104, 0105, 0106, 0107,		/* 0300 */
102	0110, 0111, 0350, 0351, 0352, 0353, 0354, 0355,		/* 0310 */
103	0175, 0112, 0113, 0114, 0115, 0116, 0117, 0120,		/* 0320 */
104	0121, 0122, 0356, 0357, 0360, 0361, 0362, 0363,		/* 0330 */
105	0134, 0237, 0123, 0124, 0125, 0126, 0127, 0130,		/* 0340 */
106	0131, 0132, 0364, 0365, 0366, 0367, 0370, 0371,		/* 0350 */
107	0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067,		/* 0360 */
108	0070, 0071, 0372, 0373, 0374, 0375, 0376, 0377,		/* 0370 */
109};
110
111/* ASCII to EBCDIC -- 32V compatible. */
112const u_char a2e_32V[] = {
113	0000, 0001, 0002, 0003, 0067, 0055, 0056, 0057,		/* 0000 */
114	0026, 0005, 0045, 0013, 0014, 0015, 0016, 0017,		/* 0010 */
115	0020, 0021, 0022, 0023, 0074, 0075, 0062, 0046,		/* 0020 */
116	0030, 0031, 0077, 0047, 0034, 0035, 0036, 0037,		/* 0030 */
117	0100, 0117, 0177, 0173, 0133, 0154, 0120, 0175,		/* 0040 */
118	0115, 0135, 0134, 0116, 0153, 0140, 0113, 0141,		/* 0050 */
119	0360, 0361, 0362, 0363, 0364, 0365, 0366, 0367,		/* 0060 */
120	0370, 0371, 0172, 0136, 0114, 0176, 0156, 0157,		/* 0070 */
121	0174, 0301, 0302, 0303, 0304, 0305, 0306, 0307,		/* 0100 */
122	0310, 0311, 0321, 0322, 0323, 0324, 0325, 0326,		/* 0110 */
123	0327, 0330, 0331, 0342, 0343, 0344, 0345, 0346,		/* 0120 */
124	0347, 0350, 0351, 0112, 0340, 0132, 0137, 0155,		/* 0130 */
125	0171, 0201, 0202, 0203, 0204, 0205, 0206, 0207,		/* 0140 */
126	0210, 0211, 0221, 0222, 0223, 0224, 0225, 0226,		/* 0150 */
127	0227, 0230, 0231, 0242, 0243, 0244, 0245, 0246,		/* 0160 */
128	0247, 0250, 0251, 0300, 0152, 0320, 0241, 0007,		/* 0170 */
129	0040, 0041, 0042, 0043, 0044, 0025, 0006, 0027,		/* 0200 */
130	0050, 0051, 0052, 0053, 0054, 0011, 0012, 0033,		/* 0210 */
131	0060, 0061, 0032, 0063, 0064, 0065, 0066, 0010,		/* 0220 */
132	0070, 0071, 0072, 0073, 0004, 0024, 0076, 0341,		/* 0230 */
133	0101, 0102, 0103, 0104, 0105, 0106, 0107, 0110,		/* 0240 */
134	0111, 0121, 0122, 0123, 0124, 0125, 0126, 0127,		/* 0250 */
135	0130, 0131, 0142, 0143, 0144, 0145, 0146, 0147,		/* 0260 */
136	0150, 0151, 0160, 0161, 0162, 0163, 0164, 0165,		/* 0270 */
137	0166, 0167, 0170, 0200, 0212, 0213, 0214, 0215,		/* 0300 */
138	0216, 0217, 0220, 0232, 0233, 0234, 0235, 0236,		/* 0310 */
139	0237, 0240, 0252, 0253, 0254, 0255, 0256, 0257,		/* 0320 */
140	0260, 0261, 0262, 0263, 0264, 0265, 0266, 0267,		/* 0330 */
141	0270, 0271, 0272, 0273, 0274, 0275, 0276, 0277,		/* 0340 */
142	0312, 0313, 0314, 0315, 0316, 0317, 0332, 0333,		/* 0350 */
143	0334, 0335, 0336, 0337, 0352, 0353, 0354, 0355,		/* 0360 */
144	0356, 0357, 0372, 0373, 0374, 0375, 0376, 0377,		/* 0370 */
145};
146
147/* ASCII to IBM EBCDIC -- 32V compatible. */
148const u_char a2ibm_32V[] = {
149	0000, 0001, 0002, 0003, 0067, 0055, 0056, 0057,		/* 0000 */
150	0026, 0005, 0045, 0013, 0014, 0015, 0016, 0017,		/* 0010 */
151	0020, 0021, 0022, 0023, 0074, 0075, 0062, 0046,		/* 0020 */
152	0030, 0031, 0077, 0047, 0034, 0035, 0036, 0037,		/* 0030 */
153	0100, 0132, 0177, 0173, 0133, 0154, 0120, 0175,		/* 0040 */
154	0115, 0135, 0134, 0116, 0153, 0140, 0113, 0141,		/* 0050 */
155	0360, 0361, 0362, 0363, 0364, 0365, 0366, 0367,		/* 0060 */
156	0370, 0371, 0172, 0136, 0114, 0176, 0156, 0157,		/* 0070 */
157	0174, 0301, 0302, 0303, 0304, 0305, 0306, 0307,		/* 0100 */
158	0310, 0311, 0321, 0322, 0323, 0324, 0325, 0326,		/* 0110 */
159	0327, 0330, 0331, 0342, 0343, 0344, 0345, 0346,		/* 0120 */
160	0347, 0350, 0351, 0255, 0340, 0275, 0137, 0155,		/* 0130 */
161	0171, 0201, 0202, 0203, 0204, 0205, 0206, 0207,		/* 0140 */
162	0210, 0211, 0221, 0222, 0223, 0224, 0225, 0226,		/* 0150 */
163	0227, 0230, 0231, 0242, 0243, 0244, 0245, 0246,		/* 0160 */
164	0247, 0250, 0251, 0300, 0117, 0320, 0241, 0007,		/* 0170 */
165	0040, 0041, 0042, 0043, 0044, 0025, 0006, 0027,		/* 0200 */
166	0050, 0051, 0052, 0053, 0054, 0011, 0012, 0033,		/* 0210 */
167	0060, 0061, 0032, 0063, 0064, 0065, 0066, 0010,		/* 0220 */
168	0070, 0071, 0072, 0073, 0004, 0024, 0076, 0341,		/* 0230 */
169	0101, 0102, 0103, 0104, 0105, 0106, 0107, 0110,		/* 0240 */
170	0111, 0121, 0122, 0123, 0124, 0125, 0126, 0127,		/* 0250 */
171	0130, 0131, 0142, 0143, 0144, 0145, 0146, 0147,		/* 0260 */
172	0150, 0151, 0160, 0161, 0162, 0163, 0164, 0165,		/* 0270 */
173	0166, 0167, 0170, 0200, 0212, 0213, 0214, 0215,		/* 0300 */
174	0216, 0217, 0220, 0232, 0233, 0234, 0235, 0236,		/* 0310 */
175	0237, 0240, 0252, 0253, 0254, 0255, 0256, 0257,		/* 0320 */
176	0260, 0261, 0262, 0263, 0264, 0265, 0266, 0267,		/* 0330 */
177	0270, 0271, 0272, 0273, 0274, 0275, 0276, 0277,		/* 0340 */
178	0312, 0313, 0314, 0315, 0316, 0317, 0332, 0333,		/* 0350 */
179	0334, 0335, 0336, 0337, 0352, 0353, 0354, 0355,		/* 0360 */
180	0356, 0357, 0372, 0373, 0374, 0375, 0376, 0377,		/* 0370 */
181};
182
183/* EBCDIC to ASCII -- POSIX and System V compatible. */
184const u_char e2a_POSIX[] = {
185	0000, 0001, 0002, 0003, 0234, 0011, 0206, 0177,		/* 0000 */
186	0227, 0215, 0216, 0013, 0014, 0015, 0016, 0017,		/* 0010 */
187	0020, 0021, 0022, 0023, 0235, 0205, 0010, 0207,		/* 0020 */
188	0030, 0031, 0222, 0217, 0034, 0035, 0036, 0037,		/* 0030 */
189	0200, 0201, 0202, 0203, 0204, 0012, 0027, 0033,		/* 0040 */
190	0210, 0211, 0212, 0213, 0214, 0005, 0006, 0007,		/* 0050 */
191	0220, 0221, 0026, 0223, 0224, 0225, 0226, 0004,		/* 0060 */
192	0230, 0231, 0232, 0233, 0024, 0025, 0236, 0032,		/* 0070 */
193	0040, 0240, 0241, 0242, 0243, 0244, 0245, 0246,		/* 0100 */
194	0247, 0250, 0325, 0056, 0074, 0050, 0053, 0174,		/* 0110 */
195	0046, 0251, 0252, 0253, 0254, 0255, 0256, 0257,		/* 0120 */
196	0260, 0261, 0041, 0044, 0052, 0051, 0073, 0176,		/* 0130 */
197	0055, 0057, 0262, 0263, 0264, 0265, 0266, 0267,		/* 0140 */
198	0270, 0271, 0313, 0054, 0045, 0137, 0076, 0077,		/* 0150 */
199	0272, 0273, 0274, 0275, 0276, 0277, 0300, 0301,		/* 0160 */
200	0302, 0140, 0072, 0043, 0100, 0047, 0075, 0042,		/* 0170 */
201	0303, 0141, 0142, 0143, 0144, 0145, 0146, 0147,		/* 0200 */
202	0150, 0151, 0304, 0305, 0306, 0307, 0310, 0311,		/* 0210 */
203	0312, 0152, 0153, 0154, 0155, 0156, 0157, 0160,		/* 0220 */
204	0161, 0162, 0136, 0314, 0315, 0316, 0317, 0320,		/* 0230 */
205	0321, 0345, 0163, 0164, 0165, 0166, 0167, 0170,		/* 0240 */
206	0171, 0172, 0322, 0323, 0324, 0133, 0326, 0327,		/* 0250 */
207	0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337,		/* 0260 */
208	0340, 0341, 0342, 0343, 0344, 0135, 0346, 0347,		/* 0270 */
209	0173, 0101, 0102, 0103, 0104, 0105, 0106, 0107,		/* 0300 */
210	0110, 0111, 0350, 0351, 0352, 0353, 0354, 0355,		/* 0310 */
211	0175, 0112, 0113, 0114, 0115, 0116, 0117, 0120,		/* 0320 */
212	0121, 0122, 0356, 0357, 0360, 0361, 0362, 0363,		/* 0330 */
213	0134, 0237, 0123, 0124, 0125, 0126, 0127, 0130,		/* 0340 */
214	0131, 0132, 0364, 0365, 0366, 0367, 0370, 0371,		/* 0350 */
215	0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067,		/* 0360 */
216	0070, 0071, 0372, 0373, 0374, 0375, 0376, 0377,		/* 0370 */
217};
218
219/* ASCII to EBCDIC -- POSIX and System V compatible. */
220const u_char a2e_POSIX[] = {
221	0000, 0001, 0002, 0003, 0067, 0055, 0056, 0057,		/* 0000 */
222	0026, 0005, 0045, 0013, 0014, 0015, 0016, 0017,		/* 0010 */
223	0020, 0021, 0022, 0023, 0074, 0075, 0062, 0046,		/* 0020 */
224	0030, 0031, 0077, 0047, 0034, 0035, 0036, 0037,		/* 0030 */
225	0100, 0132, 0177, 0173, 0133, 0154, 0120, 0175,		/* 0040 */
226	0115, 0135, 0134, 0116, 0153, 0140, 0113, 0141,		/* 0050 */
227	0360, 0361, 0362, 0363, 0364, 0365, 0366, 0367,		/* 0060 */
228	0370, 0371, 0172, 0136, 0114, 0176, 0156, 0157,		/* 0070 */
229	0174, 0301, 0302, 0303, 0304, 0305, 0306, 0307,		/* 0100 */
230	0310, 0311, 0321, 0322, 0323, 0324, 0325, 0326,		/* 0110 */
231	0327, 0330, 0331, 0342, 0343, 0344, 0345, 0346,		/* 0120 */
232	0347, 0350, 0351, 0255, 0340, 0275, 0232, 0155,		/* 0130 */
233	0171, 0201, 0202, 0203, 0204, 0205, 0206, 0207,		/* 0140 */
234	0210, 0211, 0221, 0222, 0223, 0224, 0225, 0226,		/* 0150 */
235	0227, 0230, 0231, 0242, 0243, 0244, 0245, 0246,		/* 0160 */
236	0247, 0250, 0251, 0300, 0117, 0320, 0137, 0007,		/* 0170 */
237	0040, 0041, 0042, 0043, 0044, 0025, 0006, 0027,		/* 0200 */
238	0050, 0051, 0052, 0053, 0054, 0011, 0012, 0033,		/* 0210 */
239	0060, 0061, 0032, 0063, 0064, 0065, 0066, 0010,		/* 0220 */
240	0070, 0071, 0072, 0073, 0004, 0024, 0076, 0341,		/* 0230 */
241	0101, 0102, 0103, 0104, 0105, 0106, 0107, 0110,		/* 0240 */
242	0111, 0121, 0122, 0123, 0124, 0125, 0126, 0127,		/* 0250 */
243	0130, 0131, 0142, 0143, 0144, 0145, 0146, 0147,		/* 0260 */
244	0150, 0151, 0160, 0161, 0162, 0163, 0164, 0165,		/* 0270 */
245	0166, 0167, 0170, 0200, 0212, 0213, 0214, 0215,		/* 0300 */
246	0216, 0217, 0220, 0152, 0233, 0234, 0235, 0236,		/* 0310 */
247	0237, 0240, 0252, 0253, 0254, 0112, 0256, 0257,		/* 0320 */
248	0260, 0261, 0262, 0263, 0264, 0265, 0266, 0267,		/* 0330 */
249	0270, 0271, 0272, 0273, 0274, 0241, 0276, 0277,		/* 0340 */
250	0312, 0313, 0314, 0315, 0316, 0317, 0332, 0333,		/* 0350 */
251	0334, 0335, 0336, 0337, 0352, 0353, 0354, 0355,		/* 0360 */
252	0356, 0357, 0372, 0373, 0374, 0375, 0376, 0377,		/* 0370 */
253};
254
255/* ASCII to IBM EBCDIC -- POSIX and System V compatible. */
256const u_char a2ibm_POSIX[] = {
257	0000, 0001, 0002, 0003, 0067, 0055, 0056, 0057,		/* 0000 */
258	0026, 0005, 0045, 0013, 0014, 0015, 0016, 0017,		/* 0010 */
259	0020, 0021, 0022, 0023, 0074, 0075, 0062, 0046,		/* 0020 */
260	0030, 0031, 0077, 0047, 0034, 0035, 0036, 0037,		/* 0030 */
261	0100, 0132, 0177, 0173, 0133, 0154, 0120, 0175,		/* 0040 */
262	0115, 0135, 0134, 0116, 0153, 0140, 0113, 0141,		/* 0050 */
263	0360, 0361, 0362, 0363, 0364, 0365, 0366, 0367,		/* 0060 */
264	0370, 0371, 0172, 0136, 0114, 0176, 0156, 0157,		/* 0070 */
265	0174, 0301, 0302, 0303, 0304, 0305, 0306, 0307,		/* 0100 */
266	0310, 0311, 0321, 0322, 0323, 0324, 0325, 0326,		/* 0110 */
267	0327, 0330, 0331, 0342, 0343, 0344, 0345, 0346,		/* 0120 */
268	0347, 0350, 0351, 0255, 0340, 0275, 0137, 0155,		/* 0130 */
269	0171, 0201, 0202, 0203, 0204, 0205, 0206, 0207,		/* 0140 */
270	0210, 0211, 0221, 0222, 0223, 0224, 0225, 0226,		/* 0150 */
271	0227, 0230, 0231, 0242, 0243, 0244, 0245, 0246,		/* 0160 */
272	0247, 0250, 0251, 0300, 0117, 0320, 0241, 0007,		/* 0170 */
273	0040, 0041, 0042, 0043, 0044, 0025, 0006, 0027,		/* 0200 */
274	0050, 0051, 0052, 0053, 0054, 0011, 0012, 0033,		/* 0210 */
275	0060, 0061, 0032, 0063, 0064, 0065, 0066, 0010,		/* 0220 */
276	0070, 0071, 0072, 0073, 0004, 0024, 0076, 0341,		/* 0230 */
277	0101, 0102, 0103, 0104, 0105, 0106, 0107, 0110,		/* 0240 */
278	0111, 0121, 0122, 0123, 0124, 0125, 0126, 0127,		/* 0250 */
279	0130, 0131, 0142, 0143, 0144, 0145, 0146, 0147,		/* 0260 */
280	0150, 0151, 0160, 0161, 0162, 0163, 0164, 0165,		/* 0270 */
281	0166, 0167, 0170, 0200, 0212, 0213, 0214, 0215,		/* 0300 */
282	0216, 0217, 0220, 0232, 0233, 0234, 0235, 0236,		/* 0310 */
283	0237, 0240, 0252, 0253, 0254, 0255, 0256, 0257,		/* 0320 */
284	0260, 0261, 0262, 0263, 0264, 0265, 0266, 0267,		/* 0330 */
285	0270, 0271, 0272, 0273, 0274, 0275, 0276, 0277,		/* 0340 */
286	0312, 0313, 0314, 0315, 0316, 0317, 0332, 0333,		/* 0350 */
287	0334, 0335, 0336, 0337, 0352, 0353, 0354, 0355,		/* 0360 */
288	0356, 0357, 0372, 0373, 0374, 0375, 0376, 0377,		/* 0370 */
289};
290