15 static int encode_bits(int c)  in encode_bits()  argument
17 	return pem_key[c];  in encode_bits()
20 static int decode_bits(char c)  in decode_bits()  argument
22 	if (c >= 'A' && c <= 'Z')  in decode_bits()
23 		return c - 'A';  in decode_bits()
24 	if (c >= 'a' && c <= 'z')  in decode_bits()
25 		return c - 'a' + 26;  in decode_bits()
26 	if (c >= '0' && c <= '9')  in decode_bits()
27 		return c - '0' + 52;  in decode_bits()
28 	if (c == '+')  in decode_bits()
30 	if (c == '/')  in decode_bits()
32 	if (c == '=')  in decode_bits()
43 		unsigned char a, b, c;  in ceph_armor()  local
51 				c = *src++;  in ceph_armor()
53 						     (c >> 6));  in ceph_armor()
54 				*dst++ = encode_bits(c & 63);  in ceph_armor()
80 		int a, b, c, d;  in ceph_unarmor()  local
90 		c = decode_bits(src[2]);  in ceph_unarmor()
92 		if (a < 0 || b < 0 || c < 0 || d < 0)  in ceph_unarmor()
98 		*dst++ = ((b & 15) << 4) | (c >> 2);  in ceph_unarmor()
101 		*dst++ = ((c & 3) << 6) | d;  in ceph_unarmor()