141 	int i, bits = 0, ac = 0;  in base64_encode()  local
145 		ac += src[i] << bits;  in base64_encode()
146 		bits += 8;  in base64_encode()
150 			bits -= 6;  in base64_encode()
151 		} while (bits >= 6);  in base64_encode()
153 	if (bits)  in base64_encode()
160 	int i, bits = 0, ac = 0;  in base64_decode()  local
168 		ac += (p - lookup_table) << bits;  in base64_decode()
169 		bits += 6;  in base64_decode()
170 		if (bits >= 8) {  in base64_decode()
173 			bits -= 8;  in base64_decode()