Function Base32ToByteStream

libi2pd/Base.cpp:234–259

	}

	size_t Base32ToByteStream (std::string_view base32Str, uint8_t * outBuf, size_t outLen)
	{
		unsigned int tmp = 0, bits = 0;
		size_t ret = 0;
		for (auto ch: base32Str)
		{
			if (ch >= '2' && ch <= '7') // digit
				ch = (ch - '2') + 26; // 26 means a-z
			else if (ch >= 'a' && ch <= 'z')
				ch = ch - 'a'; // a = 0
			else
				return 0; // unexpected character

			tmp |= ch;
			bits += 5;
			if (bits >= 8)
			{
				if (ret >= outLen) return ret;
				outBuf[ret] = tmp >> (bits - 8);
				bits -= 8;
				ret++;
			}
			tmp <<= 5;
		}
		return ret;
	}

	std::string ByteStreamToBase32 (const uint8_t * inBuf, size_t len)
	{