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