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Format hex dump into the buffer provided (with ASCII / EBCDIC translate functions)
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Fish-Git/hexdump
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/********************************************************************** TITLE hexdumpaw / hexdumpew AUTHOR "Fish" (David B. Trout) COPYRIGHT (C) Software Development Laboratories VERSION 1.2 (31 Dec 2014) DESCRIPTION Format a hex dump into the buffer provided 123ABC00 7F454C 46010101 00000000 .ELF............ 123ABC10 44350000 00000000 34002000 06002800 D5......4.....(. 123ABC20 23002000 060000 #...... PARAMETERS pfx string prefixed to each line buf pointer to results buffer ptr dat pointer to data to be dumped skp number of dump bytes to skip amt amount of data to be dumped adr cosmetic dump address of data wid width of dump address in bits bpg bytes per formatted group gpl formatted groups per line NOTES hexdumpaw and hexdumpew are normally not called directly but are instead called via one of the defined hexdumpxnn macros where x is either a or e for ASCII or EBCDIC and nn is the width of the cosmetic adr value in bits. Thus the hexdumpa32 macro will format an ASCII dump using 8 hex digit (32-bit) wide adr values whereas the hexdumpe64 macro will format an EBCDIC dump using 64-bit (16 hex digit) wide adr values. The parameters passed to the macro are identical other than the missing wid parameter which is implied by the macro's name. No checking for buffer overflows is performed. It is the responsibility of the caller to ensure that sufficient buffer space is available. If you do not provide a buffer then one will be automatically malloc for you which you must then free. Neither buf nor dat may be NULL. amt, bpg and gpl must be >= 1. skp must be < (bpg * gpl). skp dump bytes are skipped before dumping of dat begins. The number of dat bytes to be dumped is amt and should not include skp. skp defines where on the first dump line the formatting of dat begins. The minimum number of bytes required for the results buffer can be calculated using the below formulas: bpl = (bpg * gpl) lbs = strlen(pfx) + (wid/4) + 2 + (bpl * 2) + gpl + 1 + bpl + 1 lines = (skp + amt + bpl - 1) / bpl bytes = (lines * lbs) + 1 **********************************************************************/ #ifndef _HEXDUMP_H_ #define _HEXDUMP_H_ #include <stdio.h> /* sprintf */ #include <ctype.h> /* isgraph */ #ifdef _MSC_VER #include <malloc.h> /* malloc */ #else #include <stdlib.h> /* malloc */ #endif #include <string.h> /* strlen */ /*-------------------------------------------------------------------*/ /* HEXDUMP */ /*-------------------------------------------------------------------*/ typedef void HEXDUMPE ( const char *pfx, char **buf, const char *dat, size_t skp, size_t amt, U64 adr, int wid, size_t bpg, size_t gpl ); extern void hexdumpaw( const char *pfx, char **buf, const char *dat, size_t skp, size_t amt, U64 adr, int wid, size_t bpg, size_t gpl ); extern void hexdumpew( const char *pfx, char **buf, const char *dat, size_t skp, size_t amt, U64 adr, int wid, size_t bpg, size_t gpl ); #define hexdumpe16( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpew( pfx, buf, dat, skp, amt, adr, 16, bpg, gpl ) #define hexdumpa16( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpaw( pfx, buf, dat, skp, amt, adr, 16, bpg, gpl ) #define hexdumpe24( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpew( pfx, buf, dat, skp, amt, adr, 24, bpg, gpl ) #define hexdumpa24( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpaw( pfx, buf, dat, skp, amt, adr, 24, bpg, gpl ) #define hexdumpe32( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpew( pfx, buf, dat, skp, amt, adr, 32, bpg, gpl ) #define hexdumpa32( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpaw( pfx, buf, dat, skp, amt, adr, 32, bpg, gpl ) #define hexdumpe48( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpew( pfx, buf, dat, skp, amt, adr, 48, bpg, gpl ) #define hexdumpa48( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpaw( pfx, buf, dat, skp, amt, adr, 48, bpg, gpl ) #define hexdumpe56( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpew( pfx, buf, dat, skp, amt, adr, 56, bpg, gpl ) #define hexdumpa56( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpaw( pfx, buf, dat, skp, amt, adr, 56, bpg, gpl ) #define hexdumpe64( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpew( pfx, buf, dat, skp, amt, adr, 64, bpg, gpl ) #define hexdumpa64( pfx, buf, dat, skp, amt, adr, bpg, gpl ) \ hexdumpaw( pfx, buf, dat, skp, amt, adr, 64, bpg, gpl ) #define hexdumpa hexdumpa32 /* Default to 32-bit */ #define hexdumpe hexdumpe32 /* Default to 32-bit */ #define hexdump hexdumpa /* Default to ASCII */ /*-------------------------------------------------------------------*/ /* EBCDIC/ASCII Translation Tables */ /*-------------------------------------------------------------------*/ static const char _a2e_tab[] = { /* ASCII code page 1252 to EBCDIC code page 1140 */ /* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF*/ /*0x*/0x00,0x01,0x02,0x03,0x37,0x2D,0x2E,0x2F,0x16,0x05,0x25,0x0B,0x0C,0x0D,0x0E,0x0F, /*1x*/0x10,0x11,0x12,0x13,0x3C,0x3D,0x32,0x26,0x18,0x19,0x3F,0x27,0x1C,0x1D,0x1E,0x1F, /*2x*/0x40,0x5A,0x7F,0x7B,0x5B,0x6C,0x50,0x7D,0x4D,0x5D,0x5C,0x4E,0x6B,0x60,0x4B,0x61, /*3x*/0xF0,0xF1,0xF2,0xF3,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0x7A,0x5E,0x4C,0x7E,0x6E,0x6F, /*4x*/0x7C,0xC1,0xC2,0xC3,0xC4,0xC5,0xC6,0xC7,0xC8,0xC9,0xD1,0xD2,0xD3,0xD4,0xD5,0xD6, /*5x*/0xD7,0xD8,0xD9,0xE2,0xE3,0xE4,0xE5,0xE6,0xE7,0xE8,0xE9,0xBA,0xE0,0xBB,0xB0,0x6D, /*6x*/0x79,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x91,0x92,0x93,0x94,0x95,0x96, /*7x*/0x97,0x98,0x99,0xA2,0xA3,0xA4,0xA5,0xA6,0xA7,0xA8,0xA9,0xC0,0x4F,0xD0,0xA1,0x07, /*8x*/0x9F,0x21,0x22,0x23,0x24,0x15,0x06,0x17,0x28,0x29,0x2A,0x2B,0x2C,0x09,0x0A,0x1B, /*9x*/0x30,0x31,0x1A,0x33,0x34,0x35,0x36,0x08,0x38,0x39,0x3A,0x3B,0x04,0x14,0x3E,0xFF, /*Ax*/0x41,0xAA,0x4A,0xB1,0x20,0xB2,0x6A,0xB5,0xBD,0xB4,0x9A,0x8A,0x5F,0xCA,0xAF,0xBC, /*Bx*/0x90,0x8F,0xEA,0xFA,0xBE,0xA0,0xB6,0xB3,0x9D,0xDA,0x9B,0x8B,0xB7,0xB8,0xB9,0xAB, /*Cx*/0x64,0x65,0x62,0x66,0x63,0x67,0x9E,0x68,0x74,0x71,0x72,0x73,0x78,0x75,0x76,0x77, /*Dx*/0xAC,0x69,0xED,0xEE,0xEB,0xEF,0xEC,0xBF,0x80,0xFD,0xFE,0xFB,0xFC,0xAD,0xAE,0x59, /*Ex*/0x44,0x45,0x42,0x46,0x43,0x47,0x9C,0x48,0x54,0x51,0x52,0x53,0x58,0x55,0x56,0x57, /*Fx*/0x8C,0x49,0xCD,0xCE,0xCB,0xCF,0xCC,0xE1,0x70,0xDD,0xDE,0xDB,0xDC,0x8D,0x8E,0xDF, };/* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF*/ static const char _e2a_tab[] = { /* EBCDIC code page 1140 to ASCII code page 1252 */ /* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF*/ /*0x*/0x00,0x01,0x02,0x03,0x9C,0x09,0x86,0x7F,0x97,0x8D,0x8E,0x0B,0x0C,0x0D,0x0E,0x0F, /*1x*/0x10,0x11,0x12,0x13,0x9D,0x85,0x08,0x87,0x18,0x19,0x92,0x8F,0x1C,0x1D,0x1E,0x1F, /*2x*/0xA4,0x81,0x82,0x83,0x84,0x0A,0x17,0x1B,0x88,0x89,0x8A,0x8B,0x8C,0x05,0x06,0x07, /*3x*/0x90,0x91,0x16,0x93,0x94,0x95,0x96,0x04,0x98,0x99,0x9A,0x9B,0x14,0x15,0x9E,0x1A, /*4x*/0x20,0xA0,0xE2,0xE4,0xE0,0xE1,0xE3,0xE5,0xE7,0xF1,0xA2,0x2E,0x3C,0x28,0x2B,0x7C, /*5x*/0x26,0xE9,0xEA,0xEB,0xE8,0xED,0xEE,0xEF,0xEC,0xDF,0x21,0x24,0x2A,0x29,0x3B,0xAC, /*6x*/0x2D,0x2F,0xC2,0xC4,0xC0,0xC1,0xC3,0xC5,0xC7,0xD1,0xA6,0x2C,0x25,0x5F,0x3E,0x3F, /*7x*/0xF8,0xC9,0xCA,0xCB,0xC8,0xCD,0xCE,0xCF,0xCC,0x60,0x3A,0x23,0x40,0x27,0x3D,0x22, /*8x*/0xD8,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0xAB,0xBB,0xF0,0xFD,0xFE,0xB1, /*9x*/0xB0,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72,0xAA,0xBA,0xE6,0xB8,0xC6,0x80, /*Ax*/0xB5,0x7E,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0xA1,0xBF,0xD0,0xDD,0xDE,0xAE, /*Bx*/0x5E,0xA3,0xA5,0xB7,0xA9,0xA7,0xB6,0xBC,0xBD,0xBE,0x5B,0x5D,0xAF,0xA8,0xB4,0xD7, /*Cx*/0x7B,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0xAD,0xF4,0xF6,0xF2,0xF3,0xF5, /*Dx*/0x7D,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,0x50,0x51,0x52,0xB9,0xFB,0xFC,0xF9,0xFA,0xFF, /*Ex*/0x5C,0xF7,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0xB2,0xD4,0xD6,0xD2,0xD3,0xD5, /*Fx*/0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0xB3,0xDB,0xDC,0xD9,0xDA,0x9F, };/* x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF*/ /*-------------------------------------------------------------------*/ /* EBCDIC/ASCII Translation Functions */ /*-------------------------------------------------------------------*/ /* ** Get pointer to translation table */ static INLINE const char* a2etab() { return _a2e_tab; } static INLINE const char* e2atab() { return _e2a_tab; } /* ** Translate single byte */ static INLINE char a2e( char b ) { return a2etab()[ (unsigned char) b ]; } static INLINE char e2a( char b ) { return e2atab()[ (unsigned char) b ]; } /* ** Translate an entire array of bytes */ extern U8 e2aora2e /* Return true/false success/failure */ ( char *out, /* Resulting translated array */ const char *in, /* Array to be translated */ const size_t len, /* Length of each array in bytes */ const char *x2xtab /* Pointer to translation table */ ); #endif // _HEXDUMP_H_
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