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bin2s.c
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C/C++ Source or Header
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1993-06-03
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2KB
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77 lines
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <time.h>
#define TRUE (1==1)
#define FALSE (!TRUE)
void usage(char *err)
{
puts("bin2s -- convert binary files into assembler source\n");
puts("Usage:\n");
puts(" bin2s <input> <global name> [<output>]");
if (err != NULL)
printf("\n\nError: %s\n");
exit(1);
}
char *timestr(void)
{
struct tm *lt;
time_t t;
t = time(NULL);
lt = localtime(&t);
return asctime(lt);
}
long filesize(FILE *f)
{
long posi, res;
posi = ftell(f);
fseek(f, 0, SEEK_END);
res = ftell(f);
fseek(f, posi, SEEK_SET);
return res;
}
void main(int argc, char *argv[])
{
FILE *inp, *outp;
char name[1000];
long length, count;
unsigned char *buffer;
if (argc < 3 || argc > 4) usage("Incorrect command line");
strcpy(name,"binary_data_field");
inp = fopen( argv[1], "rb");
if (inp == NULL) usage("Couldn't opem input file");
strcpy( name, argv[2]);
if (argc > 3) {
outp = fopen(argv[3], "w");
if (outp == NULL) usage("Couldn't open output file");
} else
outp = stdout;
length = filesize(inp);
buffer = malloc( length);
if (buffer == 0) usage("Out of memory");
if (fread( buffer, length, 1, inp) != 1) usage("read error");
fclose(inp);
fprintf(outp, ".globl _%s\n.text\n_%s:\n", name, name);
count = 0;
while (count != length) {
if (((count++)&15) == 0) fprintf(outp, "\n .byte %d", *(buffer++));
else fprintf(outp, ",%d", *(buffer++));
}
fprintf(outp, "\n");
fclose( outp);
}