[ac7d5ef0] | 1 | |
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| 2 | /***** P A C K H E X . C ************************************************ |
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| 3 | * |
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| 4 | * Packhex is a hex-file compaction utility. It attempts to concatenate |
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| 5 | * hex records to produce more size-efficient packaging. |
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| 6 | * |
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| 7 | * Limitations: Input files must be correctly formatted. This utility |
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| 8 | * is not robust enough to detect hex-record formatting |
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| 9 | * errors. |
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| 10 | * |
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| 11 | * Published: 5/93 Embedded Systems magazine |
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| 12 | * |
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| 13 | * Compiler: Microsoft C 6.0 |
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| 14 | * cl /F 1000 packhex.c |
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| 15 | * |
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| 16 | * |
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| 17 | * $Id$ |
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| 18 | * |
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| 19 | **************************************************************************/ |
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| 20 | |
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| 21 | |
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| 22 | /* #define SMALLER_RECORDS */ |
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| 23 | #ifdef SMALLER_RECORDS |
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| 24 | #define MAX_LEN_S1_RECS 128 |
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| 25 | #define MAX_LEN_S2_RECS 128 |
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| 26 | #define MAX_LEN_S3_RECS 128 |
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| 27 | #else |
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| 28 | #define MAX_LEN_S1_RECS 252 |
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| 29 | #define MAX_LEN_S2_RECS 251 |
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| 30 | #define MAX_LEN_S3_RECS 250 |
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| 31 | #endif |
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| 32 | |
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| 33 | |
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| 34 | /*--------------------------------- includes ---------------------------------*/ |
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| 35 | |
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| 36 | #include <stdio.h> |
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| 37 | #include <stdlib.h> |
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| 38 | #include <string.h> |
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| 39 | |
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| 40 | #if defined(__unix__) && !defined(EXIT_FAILURE) |
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| 41 | #define EXIT_FAILURE -1 |
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| 42 | #define EXIT_SUCCESS 0 |
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| 43 | #endif |
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| 44 | |
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| 45 | /*--------------------------------- defines ----------------------------------*/ |
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| 46 | |
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| 47 | #define YES 1 |
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| 48 | #define MAX_LINE_SIZE 600 |
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| 49 | #define EOS '\0' |
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| 50 | |
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| 51 | |
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| 52 | /*---------------------------------- macros ----------------------------------*/ |
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| 53 | |
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| 54 | /* Convert ASCII hexadecimal digit to value. */ |
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| 55 | |
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| 56 | #define HEX_DIGIT( C ) ( ( ( ( C ) > '9' ) ? ( C ) + 25 : ( C ) ) & 0xF ) |
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| 57 | |
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| 58 | |
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| 59 | /*--------------------------------- typedefs ---------------------------------*/ |
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| 60 | |
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| 61 | typedef unsigned char Boolean; |
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| 62 | typedef unsigned char Uchar; |
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| 63 | typedef unsigned int Uint; |
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| 64 | typedef unsigned long Ulong; |
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| 65 | |
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| 66 | typedef struct /* Functions and constant returning Hex-record vital stats. */ |
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| 67 | { |
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| 68 | Boolean ( *is_data_record )( char * ); |
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| 69 | Ulong ( *get_address )( char * ); |
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| 70 | Uint ( *get_data_count )( char * ); |
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| 71 | const Uint max_data_count; |
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| 72 | char *( *get_data_start )( char * ); |
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| 73 | void ( *put_data_record )( Uint, Ulong, char * ); |
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| 74 | } Rec_vitals; |
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| 75 | |
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| 76 | |
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| 77 | /*--------------------------- function prototypes ----------------------------*/ |
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| 78 | |
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| 79 | Rec_vitals * identify_first_data_record( char * ); |
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| 80 | Ulong get_ndigit_hex( char *, int ); |
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| 81 | |
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| 82 | |
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| 83 | /*----------------------------- Intel Hex format -----------------------------*/ |
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| 84 | |
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| 85 | /* |
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| 86 | * Intel Hex data-record layout |
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| 87 | * |
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| 88 | * :aabbbbccd...dee |
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| 89 | * |
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| 90 | * : - header character |
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| 91 | * aa - record data byte count, a 2-digit hex value |
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| 92 | * bbbb - record address, a 4-digit hex value |
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| 93 | * cc - record type, a 2-digit hex value: |
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| 94 | * "00" is a data record |
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| 95 | * "01" is an end-of-data record |
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| 96 | * "02" is an extended-address record |
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| 97 | * "03" is a start record |
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| 98 | * d...d - data (always an even number of chars) |
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| 99 | * ee - record checksum, a 2-digit hex value |
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| 100 | * checksum = 2's complement |
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| 101 | * [ (sum of bytes: aabbbbccd...d) modulo 256 ] |
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| 102 | */ |
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| 103 | |
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| 104 | |
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| 105 | Boolean is_intel_data_rec( char * rec_str ) |
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| 106 | { |
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| 107 | return( ( rec_str[ 0 ] == ':' ) && ( rec_str[ 8 ] == '0' ) ); |
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| 108 | } |
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| 109 | |
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| 110 | Uint get_intel_rec_data_count( char * rec_str ) |
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| 111 | { |
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| 112 | return( ( Uint ) get_ndigit_hex( rec_str + 1, 2 ) ); |
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| 113 | } |
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| 114 | |
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| 115 | Ulong get_intel_rec_address( char * rec_str ) |
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| 116 | { |
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| 117 | return( get_ndigit_hex( rec_str + 3, 4 ) ); |
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| 118 | } |
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| 119 | |
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| 120 | char * get_intel_rec_data_start( char * rec_str ) |
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| 121 | { |
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| 122 | return( rec_str + 9 ); |
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| 123 | } |
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| 124 | |
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| 125 | void put_intel_data_rec( Uint count, Ulong address, char * data_str ) |
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| 126 | { |
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| 127 | char *ptr; |
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| 128 | Uint sum = count + ( address >> 8 & 0xff ) + ( address & 0xff ); |
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| 129 | |
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| 130 | for ( ptr = data_str ; *ptr != EOS ; ptr += 2 ) |
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| 131 | sum += ( Uint ) get_ndigit_hex( ptr, 2 ); |
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| 132 | |
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| 133 | printf( |
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| 134 | ":%02X%04lX00%s%02X\n", count, address, data_str, (~sum + 1) & 0xff |
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| 135 | ); |
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| 136 | } |
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| 137 | |
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| 138 | |
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| 139 | Rec_vitals intel_hex = |
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| 140 | { |
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| 141 | is_intel_data_rec, |
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| 142 | get_intel_rec_address, |
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| 143 | get_intel_rec_data_count, |
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| 144 | 255, /* Maximum data bytes in a record. */ |
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| 145 | get_intel_rec_data_start, |
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| 146 | put_intel_data_rec |
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| 147 | }; |
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| 148 | |
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| 149 | |
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| 150 | /*------------------------- Motorola S1-record format ------------------------*/ |
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| 151 | |
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| 152 | /* |
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| 153 | * Motorola S-record data-record layout |
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| 154 | * |
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| 155 | * Sabbc...cd...dee |
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| 156 | * |
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| 157 | * S - header character |
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| 158 | * a - record type, a 1-digit value: |
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| 159 | * "0" is a header record |
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| 160 | * "1" is a 2-byte-address data record |
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| 161 | * "2" is a 3-byte-address data record |
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| 162 | * "3" is a 4-byte-address data record |
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| 163 | * "7" is a 4-byte-address end-of-data record |
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| 164 | * "8" is a 3-byte-address end-of-data record |
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| 165 | * "9" is a 2-byte-address end-of-data record |
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| 166 | * bb - record length in bytes, a 2-digit hex value |
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| 167 | * (record length doesn't count the header/type |
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| 168 | * chars and checksum byte) |
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| 169 | * c...c - record address, a 4-, 6-, or 8-digit value, |
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| 170 | * depending on record type |
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| 171 | * d...d - data (always an even number of chars) |
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| 172 | * ee - record checksum, a 2-digit hex value |
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| 173 | * checksum = 1's complement |
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| 174 | * [ (sum of all bytes: bbc..cd...d) modulo 256 ] |
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| 175 | */ |
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| 176 | |
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| 177 | #define S1_COUNT_OFFSET 3 |
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| 178 | |
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| 179 | |
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| 180 | Boolean is_moto_s1_data_rec( char * rec_str ) |
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| 181 | { |
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| 182 | return ( ( rec_str[ 0 ] == 'S' ) && ( rec_str[ 1 ] == '1' ) ); |
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| 183 | } |
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| 184 | |
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| 185 | Uint get_moto_s1_rec_data_count( char * rec_str ) |
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| 186 | { |
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| 187 | return( ( Uint ) get_ndigit_hex( rec_str + 2, 2 ) - S1_COUNT_OFFSET ); |
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| 188 | } |
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| 189 | |
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| 190 | Ulong get_moto_s1_rec_address( char * rec_str ) |
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| 191 | { |
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| 192 | return( get_ndigit_hex( rec_str + 4, 4 ) ); |
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| 193 | } |
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| 194 | |
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| 195 | char * get_moto_s1_rec_data_start( char * rec_str ) |
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| 196 | { |
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| 197 | return( rec_str + 8 ); |
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| 198 | } |
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| 199 | |
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| 200 | void put_moto_s1_data_rec( Uint count, Ulong address, char * data_str ) |
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| 201 | { |
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| 202 | char *ptr; |
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| 203 | Uint sum = S1_COUNT_OFFSET + count + |
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| 204 | ( address >> 8 & 0xff ) + ( address & 0xff ); |
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| 205 | |
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| 206 | for ( ptr = data_str ; *ptr != EOS ; ptr += 2 ) |
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| 207 | sum += ( Uint ) get_ndigit_hex( ptr, 2 ); |
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| 208 | |
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| 209 | printf( |
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| 210 | "S1%02X%04lX%s%02X\n", |
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| 211 | count + S1_COUNT_OFFSET, address, data_str, ~sum & 0xff |
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| 212 | ); |
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| 213 | } |
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| 214 | |
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| 215 | |
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| 216 | Rec_vitals motorola_s1_rec = |
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| 217 | { |
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| 218 | is_moto_s1_data_rec, |
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| 219 | get_moto_s1_rec_address, |
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| 220 | get_moto_s1_rec_data_count, |
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| 221 | MAX_LEN_S1_RECS, /* Maximum data bytes in a record. */ |
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| 222 | get_moto_s1_rec_data_start, |
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| 223 | put_moto_s1_data_rec |
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| 224 | }; |
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| 225 | |
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| 226 | |
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| 227 | /*------------------------- Motorola S2-record format ------------------------*/ |
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| 228 | |
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| 229 | #define S2_COUNT_OFFSET 4 |
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| 230 | |
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| 231 | Boolean is_moto_s2_data_rec( char * rec_str ) |
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| 232 | { |
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| 233 | return ( ( rec_str[ 0 ] == 'S' ) && ( rec_str[ 1 ] == '2' ) ); |
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| 234 | } |
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| 235 | |
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| 236 | Uint get_moto_s2_rec_data_count( char * rec_str ) |
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| 237 | { |
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| 238 | return( ( Uint ) get_ndigit_hex( rec_str + 2, 2 ) - S2_COUNT_OFFSET ); |
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| 239 | } |
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| 240 | |
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| 241 | Ulong get_moto_s2_rec_address( char * rec_str ) |
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| 242 | { |
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| 243 | return( get_ndigit_hex( rec_str + 4, 6 ) ); |
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| 244 | } |
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| 245 | |
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| 246 | char * get_moto_s2_rec_data_start( char * rec_str ) |
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| 247 | { |
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| 248 | return( rec_str + 10 ); |
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| 249 | } |
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| 250 | |
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| 251 | void put_moto_s2_data_rec( Uint count, Ulong address, char * data_str ) |
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| 252 | { |
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| 253 | char *ptr; |
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| 254 | Uint sum = S2_COUNT_OFFSET + count + ( address >> 16 & 0xff ) + |
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| 255 | ( address >> 8 & 0xff ) + |
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| 256 | ( address & 0xff ); |
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| 257 | |
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| 258 | for ( ptr = data_str ; *ptr != EOS ; ptr += 2 ) |
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| 259 | sum += ( Uint ) get_ndigit_hex( ptr, 2 ); |
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| 260 | |
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| 261 | printf( |
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| 262 | "S2%02X%06lX%s%02X\n", |
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| 263 | count + S2_COUNT_OFFSET, address, data_str, ~sum & 0xff |
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| 264 | ); |
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| 265 | } |
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| 266 | |
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| 267 | |
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| 268 | Rec_vitals motorola_s2_rec = |
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| 269 | { |
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| 270 | is_moto_s2_data_rec, |
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| 271 | get_moto_s2_rec_address, |
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| 272 | get_moto_s2_rec_data_count, |
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| 273 | MAX_LEN_S2_RECS, /* Maximum data bytes in a record. */ |
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| 274 | get_moto_s2_rec_data_start, |
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| 275 | put_moto_s2_data_rec |
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| 276 | }; |
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| 277 | |
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| 278 | |
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| 279 | /*------------------------- Motorola S3-record format ------------------------*/ |
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| 280 | |
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| 281 | #define S3_COUNT_OFFSET 5 |
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| 282 | |
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| 283 | Boolean is_moto_s3_data_rec( char * rec_str ) |
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| 284 | { |
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| 285 | return ( ( rec_str[ 0 ] == 'S' ) && ( rec_str[ 1 ] == '3' ) ); |
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| 286 | } |
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| 287 | |
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| 288 | Uint get_moto_s3_rec_data_count( char * rec_str ) |
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| 289 | { |
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| 290 | return( ( Uint ) get_ndigit_hex( rec_str + 2, 2 ) - S3_COUNT_OFFSET ); |
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| 291 | } |
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| 292 | |
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| 293 | Ulong get_moto_s3_rec_address( char * rec_str ) |
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| 294 | { |
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| 295 | return( get_ndigit_hex( rec_str + 4, 8 ) ); |
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| 296 | } |
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| 297 | |
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| 298 | char * get_moto_s3_rec_data_start( char * rec_str ) |
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| 299 | { |
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| 300 | return( rec_str + 12 ); |
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| 301 | } |
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| 302 | |
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| 303 | void put_moto_s3_data_rec( Uint count, Ulong address, char * data_str ) |
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| 304 | { |
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| 305 | char *ptr; |
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| 306 | Uint sum = S3_COUNT_OFFSET + count + ( address >> 24 & 0xff ) + |
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| 307 | ( address >> 16 & 0xff ) + |
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| 308 | ( address >> 8 & 0xff ) + |
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| 309 | ( address & 0xff ); |
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| 310 | |
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| 311 | for ( ptr = data_str ; *ptr != EOS ; ptr += 2 ) |
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| 312 | sum += ( Uint ) get_ndigit_hex( ptr, 2 ); |
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| 313 | |
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| 314 | printf( |
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| 315 | "S3%02X%08lX%s%02X\n", |
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| 316 | count + S3_COUNT_OFFSET, address, data_str, ~sum & 0xff |
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| 317 | ); |
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| 318 | } |
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| 319 | |
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| 320 | |
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| 321 | Rec_vitals motorola_s3_rec = |
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| 322 | { |
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| 323 | is_moto_s3_data_rec, |
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| 324 | get_moto_s3_rec_address, |
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| 325 | get_moto_s3_rec_data_count, |
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| 326 | MAX_LEN_S3_RECS, /* Maximum data bytes in a record. */ |
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| 327 | get_moto_s3_rec_data_start, |
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| 328 | put_moto_s3_data_rec |
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| 329 | }; |
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| 330 | |
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| 331 | |
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| 332 | /*-------------------- Put your favorite hex format here ---------------------*/ |
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| 333 | |
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| 334 | /* |
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| 335 | * * * * The following is a template for an additional hex format: * * * |
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| 336 | * |
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| 337 | * |
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| 338 | * Boolean is_X_data_rec( char * rec_str ) {} |
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| 339 | * |
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| 340 | * Uint get_X_rec_data_count( char * rec_str ) {} |
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| 341 | * |
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| 342 | * Ulong get_X_rec_address( char * rec_str ) {} |
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| 343 | * |
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| 344 | * char * get_X_rec_data_start( char * rec_str ) {} |
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| 345 | * |
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| 346 | * void put_X_data_rec( Uint count, Ulong address, char * data_str ) {} |
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| 347 | * |
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| 348 | * Rec_vitals X_rec = |
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| 349 | * { |
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| 350 | * is_X_data_rec, |
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| 351 | * get_X_rec_address, |
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| 352 | * get_X_rec_data_count, |
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| 353 | * MAXIMUM DATA BYTES IN A RECORD, |
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| 354 | * get_X_rec_data_start, |
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| 355 | * put_X_data_rec |
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| 356 | * }; |
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| 357 | * |
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| 358 | */ |
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| 359 | |
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| 360 | /*----------------------------------------------------------------------------*/ |
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| 361 | |
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| 362 | |
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| 363 | /* |
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| 364 | * Put address of additional Rec_vitals structures |
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| 365 | * in this array, before the NULL entry. |
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| 366 | */ |
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| 367 | |
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| 368 | Rec_vitals *formats[] = |
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| 369 | { |
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| 370 | &intel_hex, |
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| 371 | &motorola_s1_rec, |
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| 372 | &motorola_s2_rec, |
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| 373 | &motorola_s3_rec, |
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| 374 | ( Rec_vitals * ) NULL |
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| 375 | }; |
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| 376 | |
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| 377 | |
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| 378 | /**** main ***************************************************************** |
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| 379 | * |
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| 380 | * |
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| 381 | * Expects: Nothing (no command-line parameters). |
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| 382 | * |
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| 383 | * Returns: Exit status (EXIT_SUCCESS or EXIT_FAILURE). |
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| 384 | * |
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| 385 | * Reads hex records on the standard input and attempts to |
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| 386 | * splice adjacent data fields together. Results appear on |
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| 387 | * the standard output. |
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| 388 | * |
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| 389 | *******************************************************************************/ |
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| 390 | |
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| 391 | void main( void ) |
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| 392 | { |
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| 393 | |
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| 394 | char inbuff[ MAX_LINE_SIZE ], outbuff[ MAX_LINE_SIZE ]; |
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| 395 | char *in_dptr, *out_dptr; |
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| 396 | int d_total, d_count, d_excess, n; |
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| 397 | Ulong in_rec_addr, out_rec_addr = 0; |
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| 398 | Rec_vitals *rptr; |
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| 399 | |
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| 400 | |
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| 401 | /* Sift through file until first hex record is identified. */ |
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| 402 | if ( ( rptr = identify_first_data_record( inbuff ) ) == NULL ) |
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| 403 | { |
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| 404 | fputs( "No hex records found.\n", stderr ); |
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| 405 | exit( EXIT_FAILURE ); |
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| 406 | } |
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| 407 | |
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| 408 | |
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| 409 | /* Attempt data-record splicing until end-of-file is reached. */ |
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| 410 | d_total = 0; |
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| 411 | do |
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| 412 | { |
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| 413 | if ( rptr->is_data_record( inbuff ) == YES ) |
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| 414 | { /* Input record is a data record. */ |
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| 415 | d_count = rptr->get_data_count( inbuff ); |
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| 416 | in_rec_addr = rptr->get_address( inbuff ); |
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| 417 | in_dptr = rptr->get_data_start( inbuff ); |
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| 418 | |
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| 419 | if ( d_total == 0 || in_rec_addr != out_rec_addr + d_total ) |
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| 420 | { /* Begin a new output record. */ |
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| 421 | if ( d_total != 0 ) |
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| 422 | rptr->put_data_record( d_total, out_rec_addr, outbuff ); |
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| 423 | out_dptr = outbuff; |
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| 424 | n = d_total = d_count; |
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| 425 | out_rec_addr = in_rec_addr; |
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| 426 | } |
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| 427 | else if |
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| 428 | ( ( d_excess = d_total + d_count - rptr->max_data_count ) > 0 ) |
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| 429 | { /* Output a maximum-length record, then start a new record. */ |
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| 430 | strncat( outbuff, in_dptr, 2 * ( d_count - d_excess ) ); |
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| 431 | rptr->put_data_record( |
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| 432 | rptr->max_data_count, out_rec_addr, outbuff |
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| 433 | ); |
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| 434 | in_dptr += 2 * ( d_count - d_excess ); |
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| 435 | out_dptr = outbuff; |
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| 436 | n = d_total = d_excess; |
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| 437 | out_rec_addr += rptr->max_data_count; |
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| 438 | } |
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| 439 | else |
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| 440 | { /* Append input record's data field with accumulated data. */ |
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| 441 | out_dptr = outbuff + ( 2 * d_total ); |
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| 442 | d_total += n = d_count; |
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| 443 | } |
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| 444 | strncpy( out_dptr, in_dptr, 2 * n ); |
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| 445 | out_dptr[ 2 * n ] = EOS; |
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| 446 | } |
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| 447 | else |
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| 448 | { /* Not a data record; |
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| 449 | * flush accumulated data then echo non-data record. |
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| 450 | */ |
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| 451 | if ( d_total != 0 ) |
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| 452 | { |
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| 453 | rptr->put_data_record( d_total, out_rec_addr, outbuff ); |
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| 454 | d_total = 0; |
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| 455 | } |
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| 456 | puts( inbuff ); |
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| 457 | } |
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| 458 | } while ( gets( inbuff ) != NULL ); |
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| 459 | |
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| 460 | |
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| 461 | exit( EXIT_SUCCESS ); |
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| 462 | |
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| 463 | } |
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| 464 | |
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| 465 | |
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| 466 | /**** identify_first_data_record ******************************************* |
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| 467 | * |
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| 468 | * Expects: Pointer to hex-record line buffer. |
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| 469 | * |
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| 470 | * Returns: Pointer to hex-record structure (NULL if no match found). |
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| 471 | * |
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| 472 | * Reads the standard input, line by line, searching for a valid |
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| 473 | * record header character. If a valid header is found, a pointer |
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| 474 | * to the hex-record's type structure is returned, otherwise NULL. |
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| 475 | * |
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| 476 | * The input-stream pointer is left pointing to the first valid hex record. |
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| 477 | * |
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| 478 | *******************************************************************************/ |
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| 479 | |
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| 480 | Rec_vitals * identify_first_data_record( char * buff_ptr ) |
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| 481 | { |
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| 482 | Rec_vitals ** ptr; |
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| 483 | |
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| 484 | while ( gets( buff_ptr ) != NULL ) |
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| 485 | { |
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| 486 | for ( ptr = formats ; *ptr != ( Rec_vitals * ) NULL ; ptr++ ) |
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| 487 | if ( ( *ptr )->is_data_record( buff_ptr ) == YES ) |
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| 488 | return( *ptr ); /* Successful return. */ |
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| 489 | |
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| 490 | puts( buff_ptr ); /* Echo non-hex-record line. */ |
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| 491 | } |
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| 492 | |
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| 493 | return( ( Rec_vitals * ) NULL ); /* Unsuccessful return. */ |
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| 494 | } |
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| 495 | |
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| 496 | |
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| 497 | /**** get_ndigit_hex ******************************************************* |
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| 498 | * |
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| 499 | * Expects: Pointer to first ASCII hexadecimal digit, number of digits. |
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| 500 | * |
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| 501 | * Returns: Value of hexadecimal string as an unsigned long. |
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| 502 | * |
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| 503 | *******************************************************************************/ |
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| 504 | |
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| 505 | Ulong get_ndigit_hex( char * cptr, int digits ) |
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| 506 | { |
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| 507 | Ulong value; |
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| 508 | |
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| 509 | for ( value = 0 ; --digits >= 0 ; cptr++ ) |
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| 510 | value = ( value * 16L ) + HEX_DIGIT( *cptr ); |
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| 511 | |
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| 512 | return( value ); |
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| 513 | } |
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