33  * granted for any product per se or for any other function of any product.
51 /* (From RFC1521 and draft-ietf-dnssec-secext-03.txt)
56    A 65-character subset of US-ASCII is used, enabling 6 bits to be
60    The encoding process represents 24-bit groups of input bits as output
62    24-bit input group is formed by concatenating 3 8-bit input groups.
63    These 24 bits are then treated as 4 concatenated 6-bit groups, each
66    Each 6-bit group is used as an index into an array of 64 printable
95    right) to form an integral number of 6-bit groups.  Padding at the
99          -------------------------------------------------                       
116    src from base - 64 numbers into three 8 bit bytes in the target area.
117    it returns the number of data bytes stored at the target, or -1 on error.
125 	char *pos;  in ldns_b64_pton()  local
141 		pos = strchr(Base64, ch);  in ldns_b64_pton()
142 		if (pos == 0) {  in ldns_b64_pton()
143 			/* A non-base64 character. */  in ldns_b64_pton()
144 			return (-1);  in ldns_b64_pton()
151 					return (-1);  in ldns_b64_pton()
152 				target[tarindex] = (pos - Base64) << 2;  in ldns_b64_pton()
159 					return (-1);  in ldns_b64_pton()
160 				target[tarindex]   |=  (pos - Base64) >> 4;  in ldns_b64_pton()
161 				target[tarindex+1]  = ((pos - Base64) & 0x0f)  in ldns_b64_pton()
170 					return (-1);  in ldns_b64_pton()
171 				target[tarindex]   |=  (pos - Base64) >> 2;  in ldns_b64_pton()
172 				target[tarindex+1]  = ((pos - Base64) & 0x03)  in ldns_b64_pton()
181 					return (-1);  in ldns_b64_pton()
182 				target[tarindex] |= (pos - Base64);  in ldns_b64_pton()
193 	 * We are done decoding Base-64 chars.  Let's see if we ended  in ldns_b64_pton()
202 			return (-1);  in ldns_b64_pton()
211 				return (-1);  in ldns_b64_pton()
223 					return (-1);  in ldns_b64_pton()
232 				return (-1);  in ldns_b64_pton()
240 			return (-1);  in ldns_b64_pton()