creates unsigned char array from bin data

bin-to-c.c

#include <stdio.h>

int main(int argc, char **argv)
{
	FILE *fp;
	int cur, c, prevc;

	if(argc < 2) {
		fprintf(stderr, "You should provide a filename.\n");
		return 1;
	}

	if(!(fp = fopen(argv[1], "rb"))) {
		fprintf(stderr, "Failed to open file %s\n", argv[1]);
		return 1;
	}

	printf("unsigned char data[] = {\n\t");

	cur = 8;
	if((prevc = fgetc(fp)) == -1) {
		fprintf(stderr, "File %s is empty\n", argv[1]);
		return 1;
	}

	while((c = fgetc(fp)) != -1) {
		cur += printf("%u,", (unsigned int)prevc);
		if(cur >= 72) {
			printf("\n\t");
			cur = 8;
		} else {
			putchar(' ');
			cur++;
		}
		prevc = c;
	}

	printf("%u\n};\n", prevc);
	fclose(fp);
	return 0;
}