#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <err.h>

void usage(void);

int main(int argc, char *argv[]) {
  int fd, rc;
  unsigned char buf;
  int col = 0;

  if(argc != 2) {
    usage();
  }

  fd = open(argv[1], O_RDONLY);
  if(fd == -1)
    err(1, "Open of file `%s' failed", argv[1]);

  while(read(fd, &buf, sizeof(unsigned char)) != -1) {
    if(col + 6 >= 80) {
      printf("\n");
      col = 0;
    }
    col += printf("0x%.2hhx, ", buf);
  }

  rc = close(fd);
  if(rc == -1)
    warn("Close of file `%s' failed", argv[1]);

  return 0;
}

void usage(void) {
  fprintf(stderr, "Usage: bin2c FILE\n"
"Dumps a file in a format suitable for inclusion into a C source file.\n\n"
"Send bug reports to Jason Spence <jspence@lightconsulting.com>\n"
	  );
  exit(1);
}