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binary-to-array.c
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binary-to-array.c
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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int main(int argc, char *argv[])
{
FILE *fp_bin = NULL;
unsigned char c = 0;
char *binary_file_name = NULL;
char *array_name = NULL;
unsigned long array_size = 0;
int opt = 0;
extern char *optarg;
extern int optind, opterr, optopt;
while ((opt = getopt(argc, argv, "i:")) != -1)
{
switch (opt)
{
case 'i':
binary_file_name = optarg;
break;
default:
break;
}
}
if (optind >= argc)
{
fprintf(stderr, "Expected argument after options\n");
exit(EXIT_FAILURE);
}
array_name = argv[optind];
if (binary_file_name == NULL)
{
fp_bin = stdin;
}
else
{
fp_bin = fopen(binary_file_name, "rb");
if (fp_bin == NULL)
{
perror("fopen");
fprintf(stderr, "File not found: binary_file_name: %s\n", binary_file_name);
exit(EXIT_FAILURE);
}
}
/* read binary file and convert C array and it's count. */
printf("const unsigned char %s_array[] = {\n\t", array_name);
while (1)
{
c = fgetc(fp_bin);
if (feof(fp_bin))
{
break;
}
printf("0x%02x, ", c);
array_size++;
if ( array_size % 10 == 0)
{
printf("\n\t");
}
}
printf("\n};\n\n");
printf("const unsigned long %s_size = %lu;\n", array_name, array_size);
if (binary_file_name)
{
fclose(fp_bin);
}
}