From 47c4db8d37248d968fac7ee4a71ca64398890723 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Wed, 6 Jan 2016 11:57:21 -0800
Subject: [PATCH] Fix build with musl

Remove BSDisms
Remove fts, and link to libfts thats provided externally

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
Upstream-Status: Inappropriate[musl specific]

 lib/Makefile.am |    4 +-
 lib/fts.c       | 1025 -------------------------------------------------------
 lib/fts.h       |  131 -------
 lib/vis.h       |   13 +-
 src/Makefile.am |    2 +-
 src/extern.h    |    2 -
 src/file_subs.c |    2 +-
 src/tables.c    |    2 +-
 8 files changed, 14 insertions(+), 1167 deletions(-)
 delete mode 100644 lib/fts.c
 delete mode 100644 lib/fts.h

diff --git a/lib/Makefile.am b/lib/Makefile.am
index 56d0859..7f5045a 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -8,8 +8,8 @@ AUTOMAKE_OPTIONS = 1.7 gnits
 CLEANFILES = *~
 
 noinst_LIBRARIES = libbsdfunc.a
-noinst_HEADERS = vis.h bsdfunc.h fts.h
+noinst_HEADERS = vis.h bsdfunc.h
 
 AM_CFLAGS = @EXTRA_CFLAGS@
 
-libbsdfunc_a_SOURCES = vis.c strlcpy.c strmode.c fts.c
+libbsdfunc_a_SOURCES = vis.c strlcpy.c strmode.c
diff --git a/lib/fts.c b/lib/fts.c
deleted file mode 100644
index 45e90ca..0000000
--- a/lib/fts.c
+++ /dev/null
@@ -1,1025 +0,0 @@
-/*-
- * Copyright (c) 1990, 1993, 1994
- *      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.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * 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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <dirent.h>
-#include <errno.h>
-#include <fts.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-/* Largest alignment size needed, minus one.
-   Usually long double is the worst case.  */
-#ifndef ALIGNBYTES
-#define ALIGNBYTES	(__alignof__ (long double) - 1)
-#endif
-/* Align P to that size.  */
-#ifndef ALIGN
-#define	ALIGN(p)	(((unsigned long int) (p) + ALIGNBYTES) & ~ALIGNBYTES)
-#endif
-
-
-static FTSENT	*fts_alloc (FTS *, const char *, int);
-static FTSENT	*fts_build (FTS *, int);
-static void	 fts_lfree (FTSENT *);
-static void	 fts_load (FTS *, FTSENT *);
-static size_t	 fts_maxarglen (char * const *);
-static void	 fts_padjust (FTS *, FTSENT *);
-static int	 fts_palloc (FTS *, size_t);
-static FTSENT	*fts_sort (FTS *, FTSENT *, int);
-static u_short	 fts_stat (FTS *, FTSENT *, int);
-static int      fts_safe_changedir (FTS *, FTSENT *, int, const char *);
-
-#ifndef MAX
-#define MAX(a, b)	(a > b ? a : b)
-#endif
-
-#define	ISDOT(a)	(a[0] == '.' && (!a[1] || (a[1] == '.' && !a[2])))
-
-#define CLR(opt)	(sp->fts_options &= ~(opt))
-#define	ISSET(opt)	(sp->fts_options & (opt))
-#define	SET(opt)	(sp->fts_options |= (opt))
-
-#define	FCHDIR(sp, fd)	(!ISSET(FTS_NOCHDIR) && fchdir(fd))
-
-#define	BREAD		3		/* fts_read */
-
-FTS *
-fts_open(argv, koptions, compar)
-	char * const *argv;
-	register int koptions;
-	int (*compar) (const FTSENT **, const FTSENT **);
-{
-	register FTS *sp;
-	register FTSENT *p, *root;
-	register int nitems;
-	FTSENT *parent, *tmp;
-	int len;
-
-tmp = NULL;	/* stop compiler whinging */
-	/* Options check. */
-	if (koptions & ~FTS_OPTIONMASK) {
-		errno = EINVAL;
-		return (NULL);
-	}
-
-	/* Allocate/initialize the stream */
-	if ((sp = malloc((u_int)sizeof(FTS))) == NULL)
-		return (NULL);
-	memset(sp, 0, sizeof(FTS));
-	sp->fts_compar = (int (*) (const void *, const void *)) compar;
-	sp->fts_options = koptions;
-
-	/* Logical walks turn on NOCHDIR; symbolic links are too hard. */
-	if (ISSET(FTS_LOGICAL))
-		SET(FTS_NOCHDIR);
-
-	/*
-	 * Start out with 1K of path space, and enough, in any case,
-	 * to hold the user's paths.
-	 */
-#ifndef MAXPATHLEN
-#define MAXPATHLEN 1024
-#endif
-	if (fts_palloc(sp, MAX(fts_maxarglen(argv), MAXPATHLEN)))
-		goto mem1;
-
-	/* Allocate/initialize root's parent. */
-	if ((parent = fts_alloc(sp, "", 0)) == NULL)
-		goto mem2;
-	parent->fts_level = FTS_ROOTPARENTLEVEL;
-
-	/* Allocate/initialize root(s). */
-	for (root = NULL, nitems = 0; *argv != NULL; ++argv, ++nitems) {
-		/* Don't allow zero-length paths. */
-		if ((len = strlen(*argv)) == 0) {
-			errno = ENOENT;
-			goto mem3;
-		}
-
-		p = fts_alloc(sp, *argv, len);
-		p->fts_level = FTS_ROOTLEVEL;
-		p->fts_parent = parent;
-		p->fts_accpath = p->fts_name;
-		p->fts_info = fts_stat(sp, p, ISSET(FTS_COMFOLLOW));
-
-		/* Command-line "." and ".." are real directories. */
-		if (p->fts_info == FTS_DOT)
-			p->fts_info = FTS_D;
-
-		/*
-		 * If comparison routine supplied, traverse in sorted
-		 * order; otherwise traverse in the order specified.
-		 */
-		if (compar) {
-			p->fts_link = root;
-			root = p;
-		} else {
-			p->fts_link = NULL;
-			if (root == NULL)
-				tmp = root = p;
-			else {
-				tmp->fts_link = p;
-				tmp = p;
-			}
-		}
-	}
-	if (compar && nitems > 1)
-		root = fts_sort(sp, root, nitems);
-
-	/*
-	 * Allocate a dummy pointer and make fts_read think that we've just
-	 * finished the node before the root(s); set p->fts_info to FTS_INIT
-	 * so that everything about the "current" node is ignored.
-	 */
-	if ((sp->fts_cur = fts_alloc(sp, "", 0)) == NULL)
-		goto mem3;
-	sp->fts_cur->fts_link = root;
-	sp->fts_cur->fts_info = FTS_INIT;
-
-	/*
-	 * If using chdir(2), grab a file descriptor pointing to dot to ensure
-	 * that we can get back here; this could be avoided for some paths,
-	 * but almost certainly not worth the effort.  Slashes, symbolic links,
-	 * and ".." are all fairly nasty problems.  Note, if we can't get the
-	 * descriptor we run anyway, just more slowly.
-	 */
-	if (!ISSET(FTS_NOCHDIR)
-	    && (sp->fts_rfd = open(".", O_RDONLY, 0)) < 0)
-		SET(FTS_NOCHDIR);
-
-	return (sp);
-
-mem3:	fts_lfree(root);
-	free(parent);
-mem2:	free(sp->fts_path);
-mem1:	free(sp);
-	return (NULL);
-}
-
-static void
-fts_load(sp, p)
-	FTS *sp;
-	register FTSENT *p;
-{
-	register int len;
-	register char *cp;
-
-	/*
-	 * Load the stream structure for the next traversal.  Since we don't
-	 * actually enter the directory until after the preorder visit, set
-	 * the fts_accpath field specially so the chdir gets done to the right
-	 * place and the user can access the first node.  From fts_open it's
-	 * known that the path will fit.
-	 */
-	len = p->fts_pathlen = p->fts_namelen;
-	memmove(sp->fts_path, p->fts_name, len + 1);
-	if ((cp = strrchr(p->fts_name, '/')) && (cp != p->fts_name || cp[1])) {
-		len = strlen(++cp);
-		memmove(p->fts_name, cp, len + 1);
-		p->fts_namelen = len;
-	}
-	p->fts_accpath = p->fts_path = sp->fts_path;
-	sp->fts_dev = p->fts_dev;
-}
-
-int
-fts_close(sp)
-	FTS *sp;
-{
-	register FTSENT *freep, *p;
-	int saved_errno;
-
-	/*
-	 * This still works if we haven't read anything -- the dummy structure
-	 * points to the root list, so we step through to the end of the root
-	 * list which has a valid parent pointer.
-	 */
-	if (sp->fts_cur) {
-		for (p = sp->fts_cur; p->fts_level >= FTS_ROOTLEVEL;) {
-			freep = p;
-			p = p->fts_link != NULL ? p->fts_link : p->fts_parent;
-			free(freep);
-		}
-		free(p);
-	}
-
-	/* Free up child linked list, sort array, path buffer. */
-	if (sp->fts_child)
-		fts_lfree(sp->fts_child);
-	if (sp->fts_array)
-		free(sp->fts_array);
-	free(sp->fts_path);
-
-	/* Return to original directory, save errno if necessary. */
-	if (!ISSET(FTS_NOCHDIR)) {
-		saved_errno = fchdir(sp->fts_rfd) ? errno : 0;
-		(void)close(sp->fts_rfd);
-
-		/* Set errno and return. */
-		if (saved_errno != 0) {
-			/* Free up the stream pointer. */
-			free(sp);
-			errno = saved_errno;
-			return (-1);
-		}
-	}
-
-	/* Free up the stream pointer. */
-	free(sp);
-	return (0);
-}
-
-/*
- * Special case of "/" at the end of the path so that slashes aren't
- * appended which would cause paths to be written as "....//foo".
- */
-#define	NAPPEND(p)							\
-	(p->fts_path[p->fts_pathlen - 1] == '/'				\
-	    ? p->fts_pathlen - 1 : p->fts_pathlen)
-
-FTSENT *
-fts_read(sp)
-	register FTS *sp;
-{
-	register FTSENT *p, *tmp;
-	register int instr;
-	register char *t;
-	int saved_errno;
-
-	/* If finished or unrecoverable error, return NULL. */
-	if (sp->fts_cur == NULL || ISSET(FTS_STOP))
-		return (NULL);
-
-	/* Set current node pointer. */
-	p = sp->fts_cur;
-
-	/* Save and zero out user instructions. */
-	instr = p->fts_instr;
-	p->fts_instr = FTS_NOINSTR;
-
-	/* Any type of file may be re-visited; re-stat and re-turn. */
-	if (instr == FTS_AGAIN) {
-		p->fts_info = fts_stat(sp, p, 0);
-		return (p);
-	}
-
-	/*
-	 * Following a symlink -- SLNONE test allows application to see
-	 * SLNONE and recover.  If indirecting through a symlink, have
-	 * keep a pointer to current location.  If unable to get that
-	 * pointer, follow fails.
-	 */
-	if (instr == FTS_FOLLOW &&
-	    (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE)) {
-		p->fts_info = fts_stat(sp, p, 1);
-		if (p->fts_info == FTS_D && !ISSET(FTS_NOCHDIR)) {
-			if ((p->fts_symfd = open(".", O_RDONLY, 0)) < 0) {
-				p->fts_errno = errno;
-				p->fts_info = FTS_ERR;
-			} else
-				p->fts_flags |= FTS_SYMFOLLOW;
-		}
-		return (p);
-	}
-
-	/* Directory in pre-order. */
-	if (p->fts_info == FTS_D) {
-		/* If skipped or crossed mount point, do post-order visit. */
-		if (instr == FTS_SKIP ||
-		    (ISSET(FTS_XDEV) && p->fts_dev != sp->fts_dev)) {
-			if (p->fts_flags & FTS_SYMFOLLOW)
-				(void)close(p->fts_symfd);
-			if (sp->fts_child) {
-				fts_lfree(sp->fts_child);
-				sp->fts_child = NULL;
-			}
-			p->fts_info = FTS_DP;
-			return (p);
-		}
-
-		/* Rebuild if only read the names and now traversing. */
-		if (sp->fts_child != NULL && ISSET(FTS_NAMEONLY)) {
-			CLR(FTS_NAMEONLY);
-			fts_lfree(sp->fts_child);
-			sp->fts_child = NULL;
-		}
-
-		/*
-		 * Cd to the subdirectory.
-		 *
-		 * If have already read and now fail to chdir, whack the list
-		 * to make the names come out right, and set the parent errno
-		 * so the application will eventually get an error condition.
-		 * Set the FTS_DONTCHDIR flag so that when we logically change
-		 * directories back to the parent we don't do a chdir.
-		 *
-		 * If haven't read do so.  If the read fails, fts_build sets
-		 * FTS_STOP or the fts_info field of the node.
-		 */
-		if (sp->fts_child != NULL) {
-			if (fts_safe_changedir(sp, p, -1, p->fts_accpath)) {
-				p->fts_errno = errno;
-				p->fts_flags |= FTS_DONTCHDIR;
-				for (p = sp->fts_child; p != NULL;
-				     p = p->fts_link)
-					p->fts_accpath =
-					    p->fts_parent->fts_accpath;
-			}
-		} else if ((sp->fts_child = fts_build(sp, BREAD)) == NULL) {
-			if (ISSET(FTS_STOP))
-				return (NULL);
-			return (p);
-		}
-		p = sp->fts_child;
-		sp->fts_child = NULL;
-		goto name;
-	}
-
-	/* Move to the next node on this level. */
-next:	tmp = p;
-	if ((p = p->fts_link) != NULL) {
-		free(tmp);
-
-		/*
-		 * If reached the top, return to the original directory (or
-		 * the root of the tree), and load the paths for the next root.
-		 */
-		if (p->fts_level == FTS_ROOTLEVEL) {
-			if (FCHDIR(sp, sp->fts_rfd)) {
-				SET(FTS_STOP);
-				return (NULL);
-			}
-			fts_load(sp, p);
-			return (sp->fts_cur = p);
-		}
-
-		/*
-		 * User may have called fts_set on the node.  If skipped,
-		 * ignore.  If followed, get a file descriptor so we can
-		 * get back if necessary.
-		 */
-		if (p->fts_instr == FTS_SKIP)
-			goto next;
-		if (p->fts_instr == FTS_FOLLOW) {
-			p->fts_info = fts_stat(sp, p, 1);
-			if (p->fts_info == FTS_D && !ISSET(FTS_NOCHDIR)) {
-				if ((p->fts_symfd =
-				    open(".", O_RDONLY, 0)) < 0) {
-					p->fts_errno = errno;
-					p->fts_info = FTS_ERR;
-				} else
-					p->fts_flags |= FTS_SYMFOLLOW;
-			}
-			p->fts_instr = FTS_NOINSTR;
-		}
-
-name:		t = sp->fts_path + NAPPEND(p->fts_parent);
-		*t++ = '/';
-		memmove(t, p->fts_name, p->fts_namelen + 1);
-		return (sp->fts_cur = p);
-	}
-
-	/* Move up to the parent node. */
-	p = tmp->fts_parent;
-	free(tmp);
-
-	if (p->fts_level == FTS_ROOTPARENTLEVEL) {
-		/*
-		 * Done; free everything up and set errno to 0 so the user
-		 * can distinguish between error and EOF.
-		 */
-		free(p);
-		errno = 0;
-		return (sp->fts_cur = NULL);
-	}
-
-	/* NUL terminate the pathname. */
-	sp->fts_path[p->fts_pathlen] = '\0';
-
-	/*
-	 * Return to the parent directory.  If at a root node or came through
-	 * a symlink, go back through the file descriptor.  Otherwise, cd up
-	 * one directory.
-	 */
-	if (p->fts_level == FTS_ROOTLEVEL) {
-		if (FCHDIR(sp, sp->fts_rfd)) {
-			SET(FTS_STOP);
-			return (NULL);
-		}
-	} else if (p->fts_flags & FTS_SYMFOLLOW) {
-		if (FCHDIR(sp, p->fts_symfd)) {
-			saved_errno = errno;
-			(void)close(p->fts_symfd);
-			errno = saved_errno;
-			SET(FTS_STOP);
-			return (NULL);
-		}
-		(void)close(p->fts_symfd);
-	} else if (!(p->fts_flags & FTS_DONTCHDIR) &&
-		   fts_safe_changedir(sp, p->fts_parent, -1, "..")) {
-		SET(FTS_STOP);
-		return (NULL);
-	}
-	p->fts_info = p->fts_errno ? FTS_ERR : FTS_DP;
-	return (sp->fts_cur = p);
-}
-
-/*
- * Fts_set takes the stream as an argument although it's not used in this
- * implementation; it would be necessary if anyone wanted to add global
- * semantics to fts using fts_set.  An error return is allowed for similar
- * reasons.
- */
-/* ARGSUSED */
-int
-fts_set(sp, p, instr)
-	FTS __attribute__((__unused__)) *sp;
-	FTSENT *p;
-	int instr;
-{
-sp = NULL;	/* stop compiler whinging */
-	if (instr != 0 && instr != FTS_AGAIN && instr != FTS_FOLLOW &&
-	    instr != FTS_NOINSTR && instr != FTS_SKIP) {
-		errno = EINVAL;
-		return (1);
-	}
-	p->fts_instr = instr;
-	return (0);
-}
-
-/*
- * This is the tricky part -- do not casually change *anything* in here.  The
- * idea is to build the linked list of entries that are used by fts_children
- * and fts_read.  There are lots of special cases.
- *
- * The real slowdown in walking the tree is the stat calls.  If FTS_NOSTAT is
- * set and it's a physical walk (so that symbolic links can't be directories),
- * we can do things quickly.  First, if it's a 4.4BSD file system, the type
- * of the file is in the directory entry.  Otherwise, we assume that the number
- * of subdirectories in a node is equal to the number of links to the parent.
- * The former skips all stat calls.  The latter skips stat calls in any leaf
- * directories and for any files after the subdirectories in the directory have
- * been found, cutting the stat calls by about 2/3.
- */
-static FTSENT *
-fts_build(sp, type)
-	register FTS *sp;
-	int type;
-{
-	register struct dirent *dp;
-	register FTSENT *p, *head;
-	register int nitems;
-	FTSENT *cur, *tail;
-	DIR *dirp;
-	void *oldaddr;
-	int cderrno, descend, len, level, nlinks, saved_errno,
-	    nostat, doadjust;
-	size_t maxlen;
-	char *cp;
-
-	/* Set current node pointer. */
-	cur = sp->fts_cur;
-
-	/*
-	 * Open the directory for reading.  If this fails, we're done.
-	 * If being called from fts_read, set the fts_info field.
-	 */
-       if ((dirp = opendir(cur->fts_accpath)) == NULL) {
-		if (type == BREAD) {
-			cur->fts_info = FTS_DNR;
-			cur->fts_errno = errno;
-		}
-		return (NULL);
-	}
-
-	/*
-	 * Nlinks is the number of possible entries of type directory in the
-	 * directory if we're cheating on stat calls, 0 if we're not doing
-	 * any stat calls at all, -1 if we're doing stats on everything.
-	 */
-	nlinks = -1;
-	nostat = 0;
-
-	/*
-	 * If we're going to need to stat anything or we want to descend
-	 * and stay in the directory, chdir.  If this fails we keep going,
-	 * but set a flag so we don't chdir after the post-order visit.
-	 * We won't be able to stat anything, but we can still return the
-	 * names themselves.  Note, that since fts_read won't be able to
-	 * chdir into the directory, it will have to return different path
-	 * names than before, i.e. "a/b" instead of "b".  Since the node
-	 * has already been visited in pre-order, have to wait until the
-	 * post-order visit to return the error.  There is a special case
-	 * here, if there was nothing to stat then it's not an error to
-	 * not be able to stat.  This is all fairly nasty.  If a program
-	 * needed sorted entries or stat information, they had better be
-	 * checking FTS_NS on the returned nodes.
-	 */
-	cderrno = 0;
-	if (nlinks || type == BREAD) {
-		if (fts_safe_changedir(sp, cur, dirfd(dirp), NULL)) {
-			if (nlinks && type == BREAD)
-				cur->fts_errno = errno;
-			cur->fts_flags |= FTS_DONTCHDIR;
-			descend = 0;
-			cderrno = errno;
-			(void)closedir(dirp);
-			dirp = NULL;
-		} else
-			descend = 1;
-	} else
-		descend = 0;
-
-	/*
-	 * Figure out the max file name length that can be stored in the
-	 * current path -- the inner loop allocates more path as necessary.
-	 * We really wouldn't have to do the maxlen calculations here, we
-	 * could do them in fts_read before returning the path, but it's a
-	 * lot easier here since the length is part of the dirent structure.
-	 *
-	 * If not changing directories set a pointer so that can just append
-	 * each new name into the path.
-	 */
-	len = NAPPEND(cur);
-	if (ISSET(FTS_NOCHDIR)) {
-		cp = sp->fts_path + len;
-		*cp++ = '/';
-	} else {
-		/* GCC, you're too verbose. */
-		cp = NULL;
-	}
-	len++;
-	maxlen = sp->fts_pathlen - len;
-
-	level = cur->fts_level + 1;
-
-	/* Read the directory, attaching each entry to the `link' pointer. */
-	doadjust = 0;
-	for (head = tail = NULL, nitems = 0; dirp && (dp = readdir(dirp));) {
-		if (!ISSET(FTS_SEEDOT) && ISDOT(dp->d_name))
-			continue;
-
-		if ((p = fts_alloc(sp, dp->d_name, (int)_D_EXACT_NAMLEN (dp))) == NULL)
-			goto mem1;
-		if (_D_EXACT_NAMLEN (dp) >= maxlen) {/* include space for NUL */
-			oldaddr = sp->fts_path;
-			if (fts_palloc(sp, _D_EXACT_NAMLEN (dp) + len + 1)) {
-				/*
-				 * No more memory for path or structures.  Save
-				 * errno, free up the current structure and the
-				 * structures already allocated.
-				 */
-mem1:				saved_errno = errno;
-				if (p)
-					free(p);
-				fts_lfree(head);
-				(void)closedir(dirp);
-				cur->fts_info = FTS_ERR;
-				SET(FTS_STOP);
-				errno = saved_errno;
-				return (NULL);
-			}
-			/* Did realloc() change the pointer? */
-			if (oldaddr != sp->fts_path) {
-				doadjust = 1;
-				if (ISSET(FTS_NOCHDIR))
-					cp = sp->fts_path + len;
-			}
-			maxlen = sp->fts_pathlen - len;
-		}
-
-		if (len + _D_EXACT_NAMLEN (dp) >= 0x10000) {
-			/*
-			 * In an FTSENT, fts_pathlen is a u_short so it is
-			 * possible to wraparound here.  If we do, free up
-			 * the current structure and the structures already
-			 * allocated, then error out with ENAMETOOLONG.
-			 */
-			free(p);
-			fts_lfree(head);
-			(void)closedir(dirp);
-			cur->fts_info = FTS_ERR;
-			SET(FTS_STOP);
-			errno = ENAMETOOLONG;
-			return (NULL);
-		}
-		p->fts_level = level;
-		p->fts_parent = sp->fts_cur;
-		p->fts_pathlen = len + _D_EXACT_NAMLEN (dp);
-
-#if defined FTS_WHITEOUT && 0
-		if (dp->d_type == DT_WHT)
-			p->fts_flags |= FTS_ISW;
-#endif
-
-		if (cderrno) {
-			if (nlinks) {
-				p->fts_info = FTS_NS;
-				p->fts_errno = cderrno;
-			} else
-				p->fts_info = FTS_NSOK;
-			p->fts_accpath = cur->fts_accpath;
-		} else if (nlinks == 0
-#if defined DT_DIR && defined _DIRENT_HAVE_D_TYPE
-			   || (nostat &&
-			       dp->d_type != DT_DIR && dp->d_type != DT_UNKNOWN)
-#endif
-		    ) {
-			p->fts_accpath =
-			    ISSET(FTS_NOCHDIR) ? p->fts_path : p->fts_name;
-			p->fts_info = FTS_NSOK;
-		} else {
-			/* Build a file name for fts_stat to stat. */
-			if (ISSET(FTS_NOCHDIR)) {
-				p->fts_accpath = p->fts_path;
-				memmove(cp, p->fts_name, p->fts_namelen + 1);
-			} else
-				p->fts_accpath = p->fts_name;
-			/* Stat it. */
-			p->fts_info = fts_stat(sp, p, 0);
-
-			/* Decrement link count if applicable. */
-			if (nlinks > 0 && (p->fts_info == FTS_D ||
-			    p->fts_info == FTS_DC || p->fts_info == FTS_DOT))
-				--nlinks;
-		}
-
-		/* We walk in directory order so "ls -f" doesn't get upset. */
-		p->fts_link = NULL;
-		if (head == NULL)
-			head = tail = p;
-		else {
-			tail->fts_link = p;
-			tail = p;
-		}
-		++nitems;
-	}
-	if (dirp)
-		(void)closedir(dirp);
-
-	/*
-	 * If realloc() changed the address of the path, adjust the
-	 * addresses for the rest of the tree and the dir list.
-	 */
-	if (doadjust)
-		fts_padjust(sp, head);
-
-	/*
-	 * If not changing directories, reset the path back to original
-	 * state.
-	 */
-	if (ISSET(FTS_NOCHDIR)) {
-		if (len == sp->fts_pathlen || nitems == 0)
-			--cp;
-		*cp = '\0';
-	}
-
-	/*
-	 * If descended after called from fts_children or after called from
-	 * fts_read and nothing found, get back.  At the root level we use
-	 * the saved fd; if one of fts_open()'s arguments is a relative path
-	 * to an empty directory, we wind up here with no other way back.  If
-	 * can't get back, we're done.
-	 */
-	if (descend && nitems == 0 &&
-	    (cur->fts_level == FTS_ROOTLEVEL ?
-	     FCHDIR(sp, sp->fts_rfd) :
-	     fts_safe_changedir(sp, cur->fts_parent, -1, ".."))) {
-		cur->fts_info = FTS_ERR;
-		SET(FTS_STOP);
-		return (NULL);
-	}
-
-	/* If didn't find anything, return NULL. */
-	if (!nitems) {
-		if (type == BREAD)
-			cur->fts_info = FTS_DP;
-		return (NULL);
-	}
-
-	/* Sort the entries. */
-	if (sp->fts_compar && nitems > 1)
-		head = fts_sort(sp, head, nitems);
-	return (head);
-}
-
-static u_short
-fts_stat(sp, p, follow)
-	FTS *sp;
-	register FTSENT *p;
-	int follow;
-{
-	register FTSENT *t;
-	register dev_t dev;
-	register ino_t ino;
-	struct stat *sbp;
-	int saved_errno;
-
-	/* If user needs stat info, stat buffer already allocated. */
-	sbp = p->fts_statp;
-
-#if defined FTS_WHITEOUT && 0
-	/* check for whiteout */
-	if (p->fts_flags & FTS_ISW) {
-		if (sbp != &sb) {
-			memset(sbp, '\0', sizeof (*sbp));
-			sbp->st_mode = S_IFWHT;
-		}
-		return (FTS_W);
-       }
-#endif
-
-	/*
-	 * If doing a logical walk, or application requested FTS_FOLLOW, do
-	 * a stat(2).  If that fails, check for a non-existent symlink.  If
-	 * fail, set the errno from the stat call.
-	 */
-	if (ISSET(FTS_LOGICAL) || follow) {
-		if (stat(p->fts_accpath, sbp)) {
-			saved_errno = errno;
-			if (!lstat(p->fts_accpath, sbp)) {
-				errno = 0;
-				return (FTS_SLNONE);
-			}
-			p->fts_errno = saved_errno;
-			goto err;
-		}
-	} else if (lstat(p->fts_accpath, sbp)) {
-		p->fts_errno = errno;
-err:		memset(sbp, 0, sizeof(struct stat));
-		return (FTS_NS);
-	}
-
-	if (S_ISDIR(sbp->st_mode)) {
-		/*
-		 * Set the device/inode.  Used to find cycles and check for
-		 * crossing mount points.  Also remember the link count, used
-		 * in fts_build to limit the number of stat calls.  It is
-		 * understood that these fields are only referenced if fts_info
-		 * is set to FTS_D.
-		 */
-		dev = p->fts_dev = sbp->st_dev;
-		ino = p->fts_ino = sbp->st_ino;
-		p->fts_nlink = sbp->st_nlink;
-
-		if (ISDOT(p->fts_name))
-			return (FTS_DOT);
-
-		/*
-		 * Cycle detection is done by brute force when the directory
-		 * is first encountered.  If the tree gets deep enough or the
-		 * number of symbolic links to directories is high enough,
-		 * something faster might be worthwhile.
-		 */
-		for (t = p->fts_parent;
-		    t->fts_level >= FTS_ROOTLEVEL; t = t->fts_parent)
-			if (ino == t->fts_ino && dev == t->fts_dev) {
-				p->fts_cycle = t;
-				return (FTS_DC);
-			}
-		return (FTS_D);
-	}
-	if (S_ISLNK(sbp->st_mode))
-		return (FTS_SL);
-	if (S_ISREG(sbp->st_mode))
-		return (FTS_F);
-	return (FTS_DEFAULT);
-}
-
-static FTSENT *
-fts_sort(sp, head, nitems)
-	FTS *sp;
-	FTSENT *head;
-	register int nitems;
-{
-	register FTSENT **ap, *p;
-
-	/*
-	 * Construct an array of pointers to the structures and call qsort(3).
-	 * Reassemble the array in the order returned by qsort.  If unable to
-	 * sort for memory reasons, return the directory entries in their
-	 * current order.  Allocate enough space for the current needs plus
-	 * 40 so don't realloc one entry at a time.
-	 */
-	if (nitems > sp->fts_nitems) {
-		struct _ftsent **a;
-
-		sp->fts_nitems = nitems + 40;
-		if ((a = realloc(sp->fts_array,
- 		    (size_t)(sp->fts_nitems * sizeof(FTSENT *)))) == NULL) {
-			free(sp->fts_array);
-			sp->fts_array = NULL;
-			sp->fts_nitems = 0;
-			return (head);
-		}
-		sp->fts_array = a;
-	}
-	for (ap = sp->fts_array, p = head; p; p = p->fts_link)
-		*ap++ = p;
-	qsort((void *)sp->fts_array, nitems, sizeof(FTSENT *), sp->fts_compar);
-	for (head = *(ap = sp->fts_array); --nitems; ++ap)
-		ap[0]->fts_link = ap[1];
-	ap[0]->fts_link = NULL;
-	return (head);
-}
-
-static FTSENT *
-fts_alloc(sp, name, namelen)
-	FTS *sp;
-	const char *name;
-	register int namelen;
-{
-	register FTSENT *p;
-	size_t len;
-
-	/*
-	 * The file name is a variable length array and no stat structure is
-	 * necessary if the user has set the nostat bit.  Allocate the FTSENT
-	 * structure, the file name and the stat structure in one chunk, but
-	 * be careful that the stat structure is reasonably aligned.  Since the
-	 * fts_name field is declared to be of size 1, the fts_name pointer is
-	 * namelen + 2 before the first possible address of the stat structure.
-	 */
-	len = sizeof(FTSENT) + namelen;
-	len += sizeof(struct stat) + ALIGNBYTES;
-	if ((p = malloc(len)) == NULL)
-		return (NULL);
-
-	/* Copy the name and guarantee NUL termination. */
-	memmove(p->fts_name, name, namelen);
-	p->fts_name[namelen] = '\0';
-
-	p->fts_statp = (struct stat *)ALIGN(p->fts_name + namelen + 2);
-	p->fts_namelen = namelen;
-	p->fts_path = sp->fts_path;
-	p->fts_errno = 0;
-	p->fts_flags = 0;
-	p->fts_instr = FTS_NOINSTR;
-	p->fts_number = 0;
-	p->fts_pointer = NULL;
-	return (p);
-}
-
-static void
-fts_lfree(head)
-	register FTSENT *head;
-{
-	register FTSENT *p;
-
-	/* Free a linked list of structures. */
-	while ((p = head)) {
-		head = head->fts_link;
-		free(p);
-	}
-}
-
-/*
- * Allow essentially unlimited paths; find, rm, ls should all work on any tree.
- * Most systems will allow creation of paths much longer than MAXPATHLEN, even
- * though the kernel won't resolve them.  Add the size (not just what's needed)
- * plus 256 bytes so don't realloc the path 2 bytes at a time.
- */
-static int
-fts_palloc(sp, more)
-	FTS *sp;
-	size_t more;
-{
-	char *p;
-
-	sp->fts_pathlen += more + 256;
-	/*
-	 * Check for possible wraparound.  In an FTS, fts_pathlen is
-	 * a signed int but in an FTSENT it is an unsigned short.
-	 * We limit fts_pathlen to USHRT_MAX to be safe in both cases.
-	 */
-	if (sp->fts_pathlen < 0 || sp->fts_pathlen >= 0x10000) {
-		if (sp->fts_path) {
-			free(sp->fts_path);
-			sp->fts_path = NULL;
-		}
-		sp->fts_path = NULL;
-		errno = ENAMETOOLONG;
-		return (1);
-	}
-	p = realloc(sp->fts_path, sp->fts_pathlen);
-	if (p == NULL) {
-		free(sp->fts_path);
-		sp->fts_path = NULL;
-		return 1;
-	}
-	sp->fts_path = p;
-	return 0;
-}
-
-/*
- * When the path is realloc'd, have to fix all of the pointers in structures
- * already returned.
- */
-static void
-fts_padjust(sp, head)
-	FTS *sp;
-	FTSENT *head;
-{
-	FTSENT *p;
-	char *addr = sp->fts_path;
-
-#define	ADJUST(p) do {							\
-	if ((p)->fts_accpath != (p)->fts_name) {			\
-		(p)->fts_accpath =					\
-		    (char *)addr + ((p)->fts_accpath - (p)->fts_path);	\
-	}								\
-	(p)->fts_path = addr;						\
-} while (0)
-	/* Adjust the current set of children. */
-	for (p = sp->fts_child; p; p = p->fts_link)
-		ADJUST(p);
-
-	/* Adjust the rest of the tree, including the current level. */
-	for (p = head; p->fts_level >= FTS_ROOTLEVEL;) {
-		ADJUST(p);
-		p = p->fts_link ? p->fts_link : p->fts_parent;
-	}
-}
-
-static size_t
-fts_maxarglen(argv)
-	char * const *argv;
-{
-	size_t len, max;
-
-	for (max = 0; *argv; ++argv)
-		if ((len = strlen(*argv)) > max)
-			max = len;
-	return (max + 1);
-}
-
-/*
- * Change to dir specified by fd or p->fts_accpath without getting
- * tricked by someone changing the world out from underneath us.
- * Assumes p->fts_dev and p->fts_ino are filled in.
- */
-static int
-fts_safe_changedir(sp, p, fd, path)
-	FTS *sp;
-	FTSENT *p;
-	int fd;
-	const char *path;
-{
-	int ret, oerrno, newfd;
-	struct stat sb;
-
-	newfd = fd;
-	if (ISSET(FTS_NOCHDIR))
-		return (0);
-	if (fd < 0 && (newfd = open(path, O_RDONLY, 0)) < 0)
-		return (-1);
-	if (fstat(newfd, &sb)) {
-		ret = -1;
-		goto bail;
-	}
-	if (p->fts_dev != sb.st_dev || p->fts_ino != sb.st_ino) {
-		errno = ENOENT;		/* disinformation */
-		ret = -1;
-		goto bail;
-	}
-	ret = fchdir(newfd);
-bail:
-	oerrno = errno;
-	if (fd < 0)
-		(void)close(newfd);
-	errno = oerrno;
-	return (ret);
-}
diff --git a/lib/fts.h b/lib/fts.h
deleted file mode 100644
index 58846b9..0000000
--- a/lib/fts.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * Copyright (c) 1989, 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.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * 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.
- *
- *	@(#)fts.h	8.3 (Berkeley) 8/14/94
- */
-
-#ifndef	_FTS_H
-#define	_FTS_H 1
-
-#include <features.h>
-#include <sys/types.h>
-
-typedef struct {
-	struct _ftsent *fts_cur;	/* current node */
-	struct _ftsent *fts_child;	/* linked list of children */
-	struct _ftsent **fts_array;	/* sort array */
-	dev_t fts_dev;			/* starting device # */
-	char *fts_path;			/* path for this descent */
-	int fts_rfd;			/* fd for root */
-	int fts_pathlen;		/* sizeof(path) */
-	int fts_nitems;			/* elements in the sort array */
-	int (*fts_compar) (const void *, const void *); /* compare fn */
-
-#define	FTS_COMFOLLOW	0x0001		/* follow command line symlinks */
-#define	FTS_LOGICAL	0x0002		/* logical walk */
-#define	FTS_NOCHDIR	0x0004		/* don't change directories */
-#define	FTS_NOSTAT	0x0008		/* don't get stat info */
-#define	FTS_PHYSICAL	0x0010		/* physical walk */
-#define	FTS_SEEDOT	0x0020		/* return dot and dot-dot */
-#define	FTS_XDEV	0x0040		/* don't cross devices */
-#define FTS_WHITEOUT	0x0080		/* return whiteout information */
-#define	FTS_OPTIONMASK	0x00ff		/* valid user option mask */
-
-#define	FTS_NAMEONLY	0x0100		/* (private) child names only */
-#define	FTS_STOP	0x0200		/* (private) unrecoverable error */
-	int fts_options;		/* fts_open options, global flags */
-} FTS;
-
-typedef struct _ftsent {
-	struct _ftsent *fts_cycle;	/* cycle node */
-	struct _ftsent *fts_parent;	/* parent directory */
-	struct _ftsent *fts_link;	/* next file in directory */
-	long fts_number;	        /* local numeric value */
-	void *fts_pointer;	        /* local address value */
-	char *fts_accpath;		/* access path */
-	char *fts_path;			/* root path */
-	int fts_errno;			/* errno for this node */
-	int fts_symfd;			/* fd for symlink */
-	u_short fts_pathlen;		/* strlen(fts_path) */
-	u_short fts_namelen;		/* strlen(fts_name) */
-
-	ino_t fts_ino;			/* inode */
-	dev_t fts_dev;			/* device */
-	nlink_t fts_nlink;		/* link count */
-
-#define	FTS_ROOTPARENTLEVEL	-1
-#define	FTS_ROOTLEVEL		 0
-	short fts_level;		/* depth (-1 to N) */
-
-#define	FTS_D		 1		/* preorder directory */
-#define	FTS_DC		 2		/* directory that causes cycles */
-#define	FTS_DEFAULT	 3		/* none of the above */
-#define	FTS_DNR		 4		/* unreadable directory */
-#define	FTS_DOT		 5		/* dot or dot-dot */
-#define	FTS_DP		 6		/* postorder directory */
-#define	FTS_ERR		 7		/* error; errno is set */
-#define	FTS_F		 8		/* regular file */
-#define	FTS_INIT	 9		/* initialized only */
-#define	FTS_NS		10		/* stat(2) failed */
-#define	FTS_NSOK	11		/* no stat(2) requested */
-#define	FTS_SL		12		/* symbolic link */
-#define	FTS_SLNONE	13		/* symbolic link without target */
-#define FTS_W		14		/* whiteout object */
-	u_short fts_info;		/* user flags for FTSENT structure */
-
-#define	FTS_DONTCHDIR	 0x01		/* don't chdir .. to the parent */
-#define	FTS_SYMFOLLOW	 0x02		/* followed a symlink to get here */
-	u_short fts_flags;		/* private flags for FTSENT structure */
-
-#define	FTS_AGAIN	 1		/* read node again */
-#define	FTS_FOLLOW	 2		/* follow symbolic link */
-#define	FTS_NOINSTR	 3		/* no instructions */
-#define	FTS_SKIP	 4		/* discard node */
-	u_short fts_instr;		/* fts_set() instructions */
-
-	struct stat *fts_statp;		/* stat(2) information */
-	char fts_name[1];		/* file name */
-} FTSENT;
-
-__BEGIN_DECLS
-
-#define fts_children pax_fts_children
-#define fts_close pax_fts_close
-#define fts_open pax_fts_open
-#define fts_read pax_fts_read
-#define fts_set pax_fts_set
-
-FTSENT	*fts_children (FTS *, int);
-int	 fts_close (FTS *);
-FTS	*fts_open (char * const *, int,
-		   int (*)(const FTSENT **, const FTSENT **));
-FTSENT	*fts_read (FTS *);
-int	 fts_set (FTS *, FTSENT *, int) __THROW;
-__END_DECLS
-
-#endif /* fts.h */
diff --git a/lib/vis.h b/lib/vis.h
index d34d342..71fa5f4 100644
--- a/lib/vis.h
+++ b/lib/vis.h
@@ -73,14 +73,19 @@
  */
 #define	UNVIS_END	1	/* no more characters */
 
-#include <sys/cdefs.h>
+#ifndef __P
+#define __P(x) x
+#endif
 
-__BEGIN_DECLS
+#ifdef __cplusplus
+extern "C" {
+#endif
 char	*vis __P((char *, int, int, int));
 int	strvis __P((char *, const char *, int));
 int	strvisx __P((char *, const char *, size_t, int));
 int	strunvis __P((char *, const char *));
 int	unvis __P((char *, char, int *, int));
-__END_DECLS
-
+#ifdef __cplusplus
+}
+#endif
 #endif /* !_VIS_H_ */
diff --git a/src/Makefile.am b/src/Makefile.am
index 5ef52a3..227cdef 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -22,4 +22,4 @@ pax_SOURCES = ar_io.c ar_subs.c buf_subs.c cache.c cpio.c\
 	file_subs.c ftree.c gen_subs.c getoldopt.c options.c\
 	pat_rep.c pax.c sel_subs.c tables.c tar.c tty_subs.c
 
-pax_LDADD = $(top_builddir)/lib/libbsdfunc.a
+pax_LDADD = $(top_builddir)/lib/libbsdfunc.a -lfts
diff --git a/src/extern.h b/src/extern.h
index 361fa81..3ed365d 100644
--- a/src/extern.h
+++ b/src/extern.h
@@ -37,8 +37,6 @@
  * External references from each source file
  */
 
-#include <sys/cdefs.h>
-
 /*
  * ar_io.c
  */
diff --git a/src/file_subs.c b/src/file_subs.c
index 5590ff1..15bc339 100644
--- a/src/file_subs.c
+++ b/src/file_subs.c
@@ -52,7 +52,7 @@
 #include "extern.h"
 
 static int
-mk_link __P((register char *,register struct stat *,register char *, int));
+mk_link (register char *,register struct stat *,register char *, int);
 
 /*
  * routines that deal with file operations such as: creating, removing;
diff --git a/src/tables.c b/src/tables.c
index 2275bf7..8fddca4 100644
--- a/src/tables.c
+++ b/src/tables.c
@@ -39,7 +39,7 @@
 #include <sys/time.h>
 #include <sys/stat.h>
 #include <sys/param.h>
-#include <sys/fcntl.h>
+#include <fcntl.h>
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>
-- 
2.6.4