bBool bFileB::open(bString f) {
	fhandle = fopen(f.c_str(), "rb+");
	int currpos = 4;

	if(!fhandle)
		return false;

	int signature;
	fread(&signature, sizeof(int), 1, fhandle);

	if(signature != B_FILEB_HEADER) {
		fclose(fhandle);
		return false;
	}

	fseek(fhandle, 0, SEEK_END);

	if(ftell(fhandle) == 4)
		return true;

	/* read the headers */
	while(true) {
		bFileB_rawsubheader h;
		fseek(fhandle, currpos, SEEK_SET);
		if(feof(fhandle))
			break;

		if(fread(&h, 1, sizeof(bFileB_rawsubheader), fhandle) != sizeof(bFileB_rawsubheader))
			break;

		if(h.signature != B_FILEB_SUBHEADER) {
			fclose(fhandle);
			return false;
		}

		bFileB_subheader h2;
		h2.length = h.length;
		h2.start = currpos + sizeof(bFileB_subheader);
		h2.name = bString(h.name);

		headers.push_back(h2);

		currpos += sizeof(bFileB_subheader) + h.length;
	}

	return true;
}