33  * granted for any product per se or for any other function of any product.
62 /* (From RFC1521 and draft-ietf-dnssec-secext-03.txt)
67    A 65-character subset of US-ASCII is used, enabling 6 bits to be
71    The encoding process represents 24-bit groups of input bits as output
73    24-bit input group is formed by concatenating 3 8-bit input groups.
74    These 24 bits are then treated as 4 concatenated 6-bit groups, each
77    Each 6-bit group is used as an index into an array of 64 printable
106    right) to form an integral number of 6-bit groups.  Padding at the
110          -------------------------------------------------
136 		srclength -= 3;  in b64_ntop()
148 			return (-1);  in b64_ntop()
170 			return (-1);  in b64_ntop()
180 		return (-1);  in b64_ntop()
187    src from base - 64 numbers into three 8 bit bytes in the target area.
188    it returns the number of data bytes stored at the target, or -1 on error.
196 	char *pos;  in b64_pton()  local
208 		pos = strchr(Base64, ch);  in b64_pton()
209 		if (pos == NULL)		/* A non-base64 character. */  in b64_pton()
210 			return (-1);  in b64_pton()
216 					return (-1);  in b64_pton()
217 				target[tarindex] = (pos - Base64) << 2;  in b64_pton()
224 					return (-1);  in b64_pton()
225 				target[tarindex]   |=  (pos - Base64) >> 4;  in b64_pton()
226 				nextbyte = ((pos - Base64) & 0x0f) << 4;  in b64_pton()
230 					return (-1);  in b64_pton()
238 					return (-1);  in b64_pton()
239 				target[tarindex]   |=  (pos - Base64) >> 2;  in b64_pton()
240 				nextbyte = ((pos - Base64) & 0x03) << 6;  in b64_pton()
244 					return (-1);  in b64_pton()
252 					return (-1);  in b64_pton()
253 				target[tarindex] |= (pos - Base64);  in b64_pton()
264 	 * We are done decoding Base-64 chars.  Let's see if we ended  in b64_pton()
273 			return (-1);  in b64_pton()
282 				return (-1);  in b64_pton()
294 					return (-1);  in b64_pton()
304 				return (-1);  in b64_pton()
312 			return (-1);  in b64_pton()