35  * granted for any product per se or for any other function of any product.
68 /* (From RFC1521 and draft-ietf-dnssec-secext-03.txt)
73    A 65-character subset of US-ASCII is used, enabling 6 bits to be
77    The encoding process represents 24-bit groups of input bits as output
79    24-bit input group is formed by concatenating 3 8-bit input groups.
80    These 24 bits are then treated as 4 concatenated 6-bit groups, each
83    Each 6-bit group is used as an index into an array of 64 printable
112    right) to form an integral number of 6-bit groups.  Padding at the
116          -------------------------------------------------                       
144 		srclength -= 3;  in b64_ntop()
152 			return (-1);  in b64_ntop()
171 			return (-1);  in b64_ntop()
181 		return (-1);  in b64_ntop()
191    src from base - 64 numbers into three 8 bit bytes in the target area.
192    it returns the number of data bytes stored at the target, or -1 on error.
200 	char *pos;  in b64_pton()  local
212 		pos = strchr(Base64, ch);  in b64_pton()
213 		if (pos == 0)		/* A non-base64 character. */  in b64_pton()
214 			return (-1);  in b64_pton()
220 					return (-1);  in b64_pton()
221 				target[tarindex] = (pos - Base64) << 2;  in b64_pton()
228 					return (-1);  in b64_pton()
229 				target[tarindex]   |=  (pos - Base64) >> 4;  in b64_pton()
230 				target[tarindex+1]  = ((pos - Base64) & 0x0f)  in b64_pton()
239 					return (-1);  in b64_pton()
240 				target[tarindex]   |=  (pos - Base64) >> 2;  in b64_pton()
241 				target[tarindex+1]  = ((pos - Base64) & 0x03)  in b64_pton()
250 					return (-1);  in b64_pton()
251 				target[tarindex] |= (pos - Base64);  in b64_pton()
260 	 * We are done decoding Base-64 chars.  Let's see if we ended  in b64_pton()
269 			return (-1);  in b64_pton()
278 				return (-1);  in b64_pton()
290 					return (-1);  in b64_pton()
299 				return (-1);  in b64_pton()
307 			return (-1);  in b64_pton()