Function hex_to_bytes

hex-ll.c:39–49

};

int hex_to_bytes(unsigned char *binary, const char *hex, size_t len)
{
	for (; len; len--, hex += 2) {
		unsigned int val = (hexval(hex[0]) << 4) | hexval(hex[1]);

		if (val & ~0xff)
			return -1;
		*binary++ = val;
	}
	return 0;
}