--- old/usr/src/cmd/ssh/libopenbsd-compat/common/base64.c	2016-08-16 20:41:23.623786610 -0400
+++ /dev/null	2016-08-16 20:41:23.000000000 -0400
@@ -1,319 +0,0 @@
-/*	$OpenBSD: base64.c,v 1.4 2002/01/02 23:00:10 deraadt Exp $	*/
-
-/*
- * Copyright (c) 1996 by Internet Software Consortium.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
- * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
- * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- */
-
-/*
- * Portions Copyright (c) 1995 by International Business Machines, Inc.
- *
- * International Business Machines, Inc. (hereinafter called IBM) grants
- * permission under its copyrights to use, copy, modify, and distribute this
- * Software with or without fee, provided that the above copyright notice and
- * all paragraphs of this notice appear in all copies, and that the name of IBM
- * not be used in connection with the marketing of any product incorporating
- * the Software or modifications thereof, without specific, written prior
- * permission.
- *
- * To the extent it has a right to do so, IBM grants an immunity from suit
- * under its patents, if any, for the use, sale or manufacture of products to
- * the extent that such products are used for performing Domain Name System
- * dynamic updates in TCP/IP networks by means of the Software.  No immunity is
- * granted for any product per se or for any other function of any product.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE.  IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
- * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
- * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
- */
-
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
-
-#include "includes.h"
-
-#if !defined(HAVE_B64_NTOP) && !defined(HAVE___B64_NTOP)
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include <ctype.h>
-#include <stdio.h>
-
-#include <stdlib.h>
-#include <string.h>
-
-#include "base64.h"
-
-/* XXX abort illegal in library */
-#define Assert(Cond) if (!(Cond)) abort()
-
-static const char Base64[] =
-	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-static const char Pad64 = '=';
-
-/* (From RFC1521 and draft-ietf-dnssec-secext-03.txt)
-   The following encoding technique is taken from RFC 1521 by Borenstein
-   and Freed.  It is reproduced here in a slightly edited form for
-   convenience.
-
-   A 65-character subset of US-ASCII is used, enabling 6 bits to be
-   represented per printable character. (The extra 65th character, "=",
-   is used to signify a special processing function.)
-
-   The encoding process represents 24-bit groups of input bits as output
-   strings of 4 encoded characters. Proceeding from left to right, a
-   24-bit input group is formed by concatenating 3 8-bit input groups.
-   These 24 bits are then treated as 4 concatenated 6-bit groups, each
-   of which is translated into a single digit in the base64 alphabet.
-
-   Each 6-bit group is used as an index into an array of 64 printable
-   characters. The character referenced by the index is placed in the
-   output string.
-
-                         Table 1: The Base64 Alphabet
-
-      Value Encoding  Value Encoding  Value Encoding  Value Encoding
-          0 A            17 R            34 i            51 z
-          1 B            18 S            35 j            52 0
-          2 C            19 T            36 k            53 1
-          3 D            20 U            37 l            54 2
-          4 E            21 V            38 m            55 3
-          5 F            22 W            39 n            56 4
-          6 G            23 X            40 o            57 5
-          7 H            24 Y            41 p            58 6
-          8 I            25 Z            42 q            59 7
-          9 J            26 a            43 r            60 8
-         10 K            27 b            44 s            61 9
-         11 L            28 c            45 t            62 +
-         12 M            29 d            46 u            63 /
-         13 N            30 e            47 v
-         14 O            31 f            48 w         (pad) =
-         15 P            32 g            49 x
-         16 Q            33 h            50 y
-
-   Special processing is performed if fewer than 24 bits are available
-   at the end of the data being encoded.  A full encoding quantum is
-   always completed at the end of a quantity.  When fewer than 24 input
-   bits are available in an input group, zero bits are added (on the
-   right) to form an integral number of 6-bit groups.  Padding at the
-   end of the data is performed using the '=' character.
-
-   Since all base64 input is an integral number of octets, only the
-         -------------------------------------------------                       
-   following cases can arise:
-   
-       (1) the final quantum of encoding input is an integral
-           multiple of 24 bits; here, the final unit of encoded
-	   output will be an integral multiple of 4 characters
-	   with no "=" padding,
-       (2) the final quantum of encoding input is exactly 8 bits;
-           here, the final unit of encoded output will be two
-	   characters followed by two "=" padding characters, or
-       (3) the final quantum of encoding input is exactly 16 bits;
-           here, the final unit of encoded output will be three
-	   characters followed by one "=" padding character.
-   */
-
-int
-b64_ntop(u_char const *src, size_t srclength, char *target, size_t targsize)
-{
-	size_t datalength = 0;
-	u_char input[3];
-	u_char output[4];
-	int i;
-
-	while (2 < srclength) {
-		input[0] = *src++;
-		input[1] = *src++;
-		input[2] = *src++;
-		srclength -= 3;
-
-		output[0] = input[0] >> 2;
-		output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4);
-		output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6);
-		output[3] = input[2] & 0x3f;
-		Assert(output[0] < 64);
-		Assert(output[1] < 64);
-		Assert(output[2] < 64);
-		Assert(output[3] < 64);
-
-		if (datalength + 4 > targsize)
-			return (-1);
-		target[datalength++] = Base64[output[0]];
-		target[datalength++] = Base64[output[1]];
-		target[datalength++] = Base64[output[2]];
-		target[datalength++] = Base64[output[3]];
-	}
-    
-	/* Now we worry about padding. */
-	if (0 != srclength) {
-		/* Get what's left. */
-		input[0] = input[1] = input[2] = '\0';
-		for (i = 0; i < srclength; i++)
-			input[i] = *src++;
-	
-		output[0] = input[0] >> 2;
-		output[1] = ((input[0] & 0x03) << 4) + (input[1] >> 4);
-		output[2] = ((input[1] & 0x0f) << 2) + (input[2] >> 6);
-		Assert(output[0] < 64);
-		Assert(output[1] < 64);
-		Assert(output[2] < 64);
-
-		if (datalength + 4 > targsize)
-			return (-1);
-		target[datalength++] = Base64[output[0]];
-		target[datalength++] = Base64[output[1]];
-		if (srclength == 1)
-			target[datalength++] = Pad64;
-		else
-			target[datalength++] = Base64[output[2]];
-		target[datalength++] = Pad64;
-	}
-	if (datalength >= targsize)
-		return (-1);
-	target[datalength] = '\0';	/* Returned value doesn't count \0. */
-	return (datalength);
-}
-
-/* skips all whitespace anywhere.
-   converts characters, four at a time, starting at (or after)
-   src from base - 64 numbers into three 8 bit bytes in the target area.
-   it returns the number of data bytes stored at the target, or -1 on error.
- */
-
-int
-b64_pton(u_char const *src, u_char *target, size_t targsize)
-{
-	int tarindex, state, ch;
-	char *pos;
-
-	state = 0;
-	tarindex = 0;
-
-	while ((ch = *src++) != '\0') {
-		if (isspace(ch))	/* Skip whitespace anywhere. */
-			continue;
-
-		if (ch == Pad64)
-			break;
-
-		pos = strchr(Base64, ch);
-		if (pos == 0) 		/* A non-base64 character. */
-			return (-1);
-
-		switch (state) {
-		case 0:
-			if (target) {
-				if (tarindex >= targsize)
-					return (-1);
-				target[tarindex] = (pos - Base64) << 2;
-			}
-			state = 1;
-			break;
-		case 1:
-			if (target) {
-				if (tarindex + 1 >= targsize)
-					return (-1);
-				target[tarindex]   |=  (pos - Base64) >> 4;
-				target[tarindex+1]  = ((pos - Base64) & 0x0f)
-							<< 4 ;
-			}
-			tarindex++;
-			state = 2;
-			break;
-		case 2:
-			if (target) {
-				if (tarindex + 1 >= targsize)
-					return (-1);
-				target[tarindex]   |=  (pos - Base64) >> 2;
-				target[tarindex+1]  = ((pos - Base64) & 0x03)
-							<< 6;
-			}
-			tarindex++;
-			state = 3;
-			break;
-		case 3:
-			if (target) {
-				if (tarindex >= targsize)
-					return (-1);
-				target[tarindex] |= (pos - Base64);
-			}
-			tarindex++;
-			state = 0;
-			break;
-		}
-	}
-
-	/*
-	 * We are done decoding Base-64 chars.  Let's see if we ended
-	 * on a byte boundary, and/or with erroneous trailing characters.
-	 */
-
-	if (ch == Pad64) {		/* We got a pad char. */
-		ch = *src++;		/* Skip it, get next. */
-		switch (state) {
-		case 0:		/* Invalid = in first position */
-		case 1:		/* Invalid = in second position */
-			return (-1);
-
-		case 2:		/* Valid, means one byte of info */
-			/* Skip any number of spaces. */
-			for (; ch != '\0'; ch = *src++)
-				if (!isspace(ch))
-					break;
-			/* Make sure there is another trailing = sign. */
-			if (ch != Pad64)
-				return (-1);
-			ch = *src++;		/* Skip the = */
-			/* Fall through to "single trailing =" case. */
-			/* FALLTHROUGH */
-
-		case 3:		/* Valid, means two bytes of info */
-			/*
-			 * We know this char is an =.  Is there anything but
-			 * whitespace after it?
-			 */
-			for (; ch != '\0'; ch = *src++)
-				if (!isspace(ch))
-					return (-1);
-
-			/*
-			 * Now make sure for cases 2 and 3 that the "extra"
-			 * bits that slopped past the last full byte were
-			 * zeros.  If we don't check them, they become a
-			 * subliminal channel.
-			 */
-			if (target && target[tarindex] != 0)
-				return (-1);
-		}
-	} else {
-		/*
-		 * We ended by seeing the end of the string.  Make sure we
-		 * have no partial bytes lying around.
-		 */
-		if (state != 0)
-			return (-1);
-	}
-
-	return (tarindex);
-}
-
-#endif /* !defined(HAVE_B64_NTOP) && !defined(HAVE___B64_NTOP) */
