--- old/usr/src/cmd/ssh/libopenbsd-compat/common/getcwd.c	Tue Aug 16 19:27:12 2016
+++ /dev/null	Tue Aug 16 19:26:53 2016
@@ -1,239 +0,0 @@
-/*
- * Copyright (c) 1989, 1991, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include "includes.h"
-
-#if !defined(HAVE_GETCWD)
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char rcsid[] = "$OpenBSD: getcwd.c,v 1.6 2000/07/19 15:25:13 deraadt Exp $";
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/param.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <dirent.h>
-#include <sys/dir.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include "includes.h"
-
-#define	ISDOT(dp) \
-	(dp->d_name[0] == '.' && (dp->d_name[1] == '\0' || \
-	    (dp->d_name[1] == '.' && dp->d_name[2] == '\0')))
-
-char *
-getcwd(char *pt,size_t size)
-{
-	register struct dirent *dp;
-	register DIR *dir = NULL;
-	register dev_t dev;
-	register ino_t ino;
-	register int first;
-	register char *bpt, *bup;
-	struct stat s;
-	dev_t root_dev;
-	ino_t root_ino;
-	size_t ptsize, upsize;
-	int save_errno;
-	char *ept, *eup, *up;
-
-	/*
-	 * If no buffer specified by the user, allocate one as necessary.
-	 * If a buffer is specified, the size has to be non-zero.  The path
-	 * is built from the end of the buffer backwards.
-	 */
-	if (pt) {
-		ptsize = 0;
-		if (!size) {
-			errno = EINVAL;
-			return (NULL);
-		}
-		ept = pt + size;
-	} else {
-		if ((pt = malloc(ptsize = 1024 - 4)) == NULL)
-			return (NULL);
-		ept = pt + ptsize;
-	}
-	bpt = ept - 1;
-	*bpt = '\0';
-
-	/*
-	 * Allocate bytes (1024 - malloc space) for the string of "../"'s.
-	 * Should always be enough (it's 340 levels).  If it's not, allocate
-	 * as necessary.  Special * case the first stat, it's ".", not "..".
-	 */
-	if ((up = malloc(upsize = 1024 - 4)) == NULL)
-		goto err;
-	eup = up + MAXPATHLEN;
-	bup = up;
-	up[0] = '.';
-	up[1] = '\0';
-
-	/* Save root values, so know when to stop. */
-	if (stat("/", &s))
-		goto err;
-	root_dev = s.st_dev;
-	root_ino = s.st_ino;
-
-	errno = 0;			/* XXX readdir has no error return. */
-
-	for (first = 1;; first = 0) {
-		/* Stat the current level. */
-		if (lstat(up, &s))
-			goto err;
-
-		/* Save current node values. */
-		ino = s.st_ino;
-		dev = s.st_dev;
-
-		/* Check for reaching root. */
-		if (root_dev == dev && root_ino == ino) {
-			*--bpt = '/';
-			/*
-			 * It's unclear that it's a requirement to copy the
-			 * path to the beginning of the buffer, but it's always
-			 * been that way and stuff would probably break.
-			 */
-			memmove(pt, bpt, ept - bpt);
-			free(up);
-			return (pt);
-		}
-
-		/*
-		 * Build pointer to the parent directory, allocating memory
-		 * as necessary.  Max length is 3 for "../", the largest
-		 * possible component name, plus a trailing NULL.
-		 */
-		if (bup + 3  + MAXNAMLEN + 1 >= eup) {
-			char *nup;
-
-			if ((nup = realloc(up, upsize *= 2)) == NULL)
-				goto err;
-			up = nup;
-			bup = up;
-			eup = up + upsize;
-		}
-		*bup++ = '.';
-		*bup++ = '.';
-		*bup = '\0';
-
-		/* Open and stat parent directory. 
-		 * RACE?? - replaced fstat(dirfd(dir), &s) w/ lstat(up,&s) 
-                 */
-		if (!(dir = opendir(up)) || lstat(up,&s))
-			goto err;
-
-		/* Add trailing slash for next directory. */
-		*bup++ = '/';
-
-		/*
-		 * If it's a mount point, have to stat each element because
-		 * the inode number in the directory is for the entry in the
-		 * parent directory, not the inode number of the mounted file.
-		 */
-		save_errno = 0;
-		if (s.st_dev == dev) {
-			for (;;) {
-				if (!(dp = readdir(dir)))
-					goto notfound;
-				if (dp->d_fileno == ino)
-					break;
-			}
-		} else
-			for (;;) {
-				if (!(dp = readdir(dir)))
-					goto notfound;
-				if (ISDOT(dp))
-					continue;
-				memmove(bup, dp->d_name, dp->d_namlen + 1);
-
-				/* Save the first error for later. */
-				if (lstat(up, &s)) {
-					if (!save_errno)
-						save_errno = errno;
-					errno = 0;
-					continue;
-				}
-				if (s.st_dev == dev && s.st_ino == ino)
-					break;
-			}
-
-		/*
-		 * Check for length of the current name, preceding slash,
-		 * leading slash.
-		 */
-		if (bpt - pt < dp->d_namlen + (first ? 1 : 2)) {
-			size_t len, off;
-			char *npt;
-
-			if (!ptsize) {
-				errno = ERANGE;
-				goto err;
-			}
-			off = bpt - pt;
-			len = ept - bpt;
-			if ((npt = realloc(pt, ptsize *= 2)) == NULL)
-				goto err;
-			pt = npt;
-			bpt = pt + off;
-			ept = pt + ptsize;
-			memmove(ept - len, bpt, len);
-			bpt = ept - len;
-		}
-		if (!first)
-			*--bpt = '/';
-		bpt -= dp->d_namlen;
-		memmove(bpt, dp->d_name, dp->d_namlen);
-		(void)closedir(dir);
-
-		/* Truncate any file name. */
-		*bup = '\0';
-	}
-
-notfound:
-	/*
-	 * If readdir set errno, use it, not any saved error; otherwise,
-	 * didn't find the current directory in its parent directory, set
-	 * errno to ENOENT.
-	 */
-	if (!errno)
-		errno = save_errno ? save_errno : ENOENT;
-	/* FALLTHROUGH */
-err:
-	if (ptsize)
-		free(pt);
-	if (up)
-		free(up);
-	if (dir)
-		(void)closedir(dir);
-	return (NULL);
-}
-
-#endif /* !defined(HAVE_GETCWD) */
-
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
