File size: 6,938 Bytes
c7436b1 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | #include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <stdint.h>
int fread_wrapper(uint8_t *buf, int bytes_to_read, FILE *f, int *add_len, uint32_t fsize, char *version)
{
int bytes_read = 0;
if(*add_len == 1) {
*(uint32_t *)buf = (uint32_t)fsize;
*add_len = 0;
bytes_to_read -= 16;
bytes_read = 16;
buf += 4;
memset(buf, 0, 12);
strncpy(buf, version, 11);
buf += 12;
} else if(*add_len == 2) {
*(buf++) = (fsize >> 24);
*(buf++) = (fsize >> 16);
*(buf++) = (fsize >> 8);
*(buf++) = (fsize >> 0);
*add_len = 0;
bytes_to_read -= 16;
bytes_read = 16;
memset(buf, 0, 12);
strncpy(buf, version, 11);
buf += 12;
}
bytes_read += fread(buf, 1, bytes_to_read, f);
return bytes_read;
}
int main(int argc, char** argv)
{
int i;
uint32_t bin_offset = 0;
uint32_t hex_offset = 0;
uint32_t length = (1<<30); // 2G max
int eof = 1;
int segment = -1;
int append = 0;
int help = 0;
int unnamed = 0;
int add_length = 0;
int word_mode = 0;
int raw_mode = 0;
char name_in[1024];
char name_out[1024];
char version[16];
unsigned char buffer[64], b1, b2, ch;
FILE *fi, *fo;
if(argc == 1)
help = 1;
memset(version, 0, 16);
// Parse options
for(i=1;i<argc;i++) {
if(argv[i][0] == '-') { // option
switch(argv[i][1]) {
case 'i':
if(i != (argc-1)) {
bin_offset = strtoul(argv[i+1], 0, 0);
i++;
} else {
printf("-i option: no offset given.\n");
exit(1);
}
break;
case 'h':
help = 1;
break;
case 'r':
raw_mode = 1;
break;
case 'o':
if(i != (argc-1)) {
hex_offset = strtoul(argv[i+1], 0, 0);
i++;
} else {
printf("-o option: no offset given.\n");
exit(1);
}
break;
case 'l':
if(i != (argc-1)) {
length = strtoul(argv[i+1], 0, 0);
i++;
} else {
printf("-l option: no length given.\n");
exit(1);
}
break;
case 't':
eof = 0;
break;
case 'a':
append = 1;
break;
case 'v':
if(i != (argc-1)) {
strncpy(version, argv[i+1], 11);
i++;
} else {
printf("-v option: no string given.\n");
exit(1);
}
break;
case 'w':
word_mode = 1;
break;
case 'z':
add_length = 1;
break;
case 'Z':
add_length = 2;
break;
default:
printf("Unknown option %s given.\n", argv[i]);
exit(2);
}
} else {
switch(unnamed) {
case 0:
strncpy(name_in, argv[i], 1024);
break;
case 1:
strncpy(name_out, argv[i], 1024);
break;
default:
printf("Superfluous argument %s.\n", argv[i]);
exit(3);
}
unnamed++;
}
}
if(help) {
fprintf(stderr, "Usage: %s [-i <bin offset>] [-o <hex offset>] [-l <length>] \n\t\t[-h] [-t] [-z/Z] [-a] <infile> <outfile>\n", argv[0]);
fprintf(stderr, "\t-h shows this help.\n");
fprintf(stderr, "\t-t omits the end record.\n");
fprintf(stderr, "\t-z adds file length word in little endian.\n");
fprintf(stderr, "\t-Z adds file length word in big endian.\n");
fprintf(stderr, "\t-w selects word mode (outputs 4 bytes per line, and divides address by 4).\n");
fprintf(stderr, "\t-a appends to the existing hex file.\n");
return 1;
}
fi = fopen(name_in, "rb");
if(!fi) {
fprintf(stderr, "Can't open '%s' as input.\n", name_in);
exit(-1);
}
fo = fopen(name_out, (append)?"at":"wt");
if(!fo) {
fprintf(stderr, "Can't open '%s' as output.\n", name_out);
exit(-1);
}
long file_size = 0;
if(add_length) {
fseek(fi, 0L, SEEK_END);
file_size = ftell(fi);
}
fseek(fi, bin_offset, SEEK_SET);
int bytes_in_segment;
int bytes_read;
int bytes_to_read;
int seg_flag = 0;
int line_length = (word_mode)?4:32;
while(length && !feof(fi)) {
if (raw_mode) {
if (fread(buffer, 1, 1, fi) > 0) {
fprintf(fo, "%02x\n", *buffer);
}
length--;
continue;
}
bytes_in_segment = 65536 - (hex_offset & 0xFFFF);
if((bytes_in_segment == 65536)||(segment == -1)) {
//:020000040000FA
segment = (hex_offset >> 16);
b1 = (segment & 0xFF);
b2 = (segment >> 8) & 0xFF;
ch = 0xFA - b1 - b2;
seg_flag = 1;
}
bytes_to_read = (bytes_in_segment > line_length)?line_length:bytes_in_segment;
bytes_read = fread_wrapper((uint8_t *)buffer, bytes_to_read, fi, &add_length, file_size, version);
if(bytes_read) {
if(seg_flag) {
fprintf(fo, ":02000004%04X%02X\n", segment, ch);
seg_flag = 0;
}
int offset_out = (hex_offset & 0xFFFF) >> ((word_mode)?2:0);
fprintf(fo, ":%02X%04X00", bytes_read, offset_out);
b1 = (offset_out & 0xFF);
b2 = (offset_out >> 8) & 0xFF;
ch = 0 + bytes_read + b1 + b2;
for(i=0;i<bytes_read;i++) {
fprintf(fo, "%02X", buffer[i]);
ch += buffer[i];
}
ch = ~ch + 1;
fprintf(fo, "%02X\n", ch);
}
hex_offset += bytes_read;
length -= bytes_read;
}
if(eof && !raw_mode) {
fprintf(fo, ":00000001FF\n");
}
fclose(fo);
fclose(fi);
return 0;
}
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