7 files changed, 1245 insertions, 0 deletions

diff --git a/include/dirent.h b/include/dirent.h
new file mode 100644
index 000000000000..fa0fbc92ebda
--- /dev/null
+++ b/include/dirent.h
@@ -0,0 +1,102 @@
+/*-
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 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.
+ *
+ *	@(#)dirent.h	8.2 (Berkeley) 7/28/94
+ */
+
+#ifndef _DIRENT_H_
+#define _DIRENT_H_
+
+/*
+ * The kernel defines the format of directory entries returned by 
+ * the getdirentries(2) system call.
+ */
+#include <sys/dirent.h>
+
+#ifdef _POSIX_SOURCE
+typedef void *	DIR;
+#else
+
+#define	d_ino		d_fileno	/* backward compatibility */
+
+/* definitions for library routines operating on directories. */
+#define	DIRBLKSIZ	1024
+
+/* structure describing an open directory. */
+typedef struct _dirdesc {
+	int	dd_fd;		/* file descriptor associated with directory */
+	long	dd_loc;		/* offset in current buffer */
+	long	dd_size;	/* amount of data returned by getdirentries */
+	char	*dd_buf;	/* data buffer */
+	int	dd_len;		/* size of data buffer */
+	long	dd_seek;	/* magic cookie returned by getdirentries */
+	long	dd_rewind;	/* magic cookie for rewinding */
+	int	dd_flags;	/* flags for readdir */
+} DIR;
+
+#define	dirfd(dirp)	((dirp)->dd_fd)
+
+/* flags for opendir2 */
+#define DTF_HIDEW	0x0001	/* hide whiteout entries */
+#define DTF_NODUP	0x0002	/* don't return duplicate names */
+#define DTF_REWIND	0x0004	/* rewind after reading union stack */
+#define __DTF_READALL	0x0008	/* everything has been read */
+
+#ifndef NULL
+#define	NULL	0
+#endif
+
+#endif /* _POSIX_SOURCE */
+
+#ifndef KERNEL
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+DIR *opendir __P((const char *));
+struct dirent *readdir __P((DIR *));
+void rewinddir __P((DIR *));
+int closedir __P((DIR *));
+#ifndef _POSIX_SOURCE
+DIR *__opendir2 __P((const char *, int));
+long telldir __P((const DIR *));
+void seekdir __P((DIR *, long));
+int scandir __P((const char *, struct dirent ***,
+    int (*)(struct dirent *), int (*)(const void *, const void *)));
+int alphasort __P((const void *, const void *));
+int getdirentries __P((int, char *, int, long *));
+#endif /* not POSIX */
+__END_DECLS
+
+#endif /* !KERNEL */
+
+#endif /* !_DIRENT_H_ */
diff --git a/include/fts.h b/include/fts.h
new file mode 100644
index 000000000000..4fa4a3aa0ded
--- /dev/null
+++ b/include/fts.h
@@ -0,0 +1,128 @@
+/*
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 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_
+
+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)();		/* compare function */
+
+#define	FTS_COMFOLLOW	0x001		/* follow command line symlinks */
+#define	FTS_LOGICAL	0x002		/* logical walk */
+#define	FTS_NOCHDIR	0x004		/* don't change directories */
+#define	FTS_NOSTAT	0x008		/* don't get stat info */
+#define	FTS_PHYSICAL	0x010		/* physical walk */
+#define	FTS_SEEDOT	0x020		/* return dot and dot-dot */
+#define	FTS_XDEV	0x040		/* don't cross devices */
+#define	FTS_WHITEOUT	0x080		/* return whiteout information */
+#define	FTS_OPTIONMASK	0x0ff		/* valid user option mask */
+
+#define	FTS_NAMEONLY	0x100		/* (private) child names only */
+#define	FTS_STOP	0x200		/* (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 */
+#define	FTS_ISW		 0x04		/* this is a whiteout object */
+	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;
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+FTSENT	*fts_children __P((FTS *, int));
+int	 fts_close __P((FTS *));
+FTS	*fts_open __P((char * const *, int,
+	    int (*)(const FTSENT **, const FTSENT **)));
+FTSENT	*fts_read __P((FTS *));
+int	 fts_set __P((FTS *, FTSENT *, int));
+__END_DECLS
+
+#endif /* !_FTS_H_ */
diff --git a/include/mpool.h b/include/mpool.h
new file mode 100644
index 000000000000..910e0782aa9d
--- /dev/null
+++ b/include/mpool.h
@@ -0,0 +1,135 @@
+/*-
+ * Copyright (c) 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 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.
+ *
+ *	@(#)mpool.h	8.1 (Berkeley) 6/2/93
+ */
+
+/*
+ * The memory pool scheme is a simple one.  Each in memory page is referenced
+ * by a bucket which is threaded in three ways.  All active pages are threaded
+ * on a hash chain (hashed by the page number) and an lru chain.  Inactive
+ * pages are threaded on a free chain.  Each reference to a memory pool is
+ * handed an MPOOL which is the opaque cookie passed to all of the memory
+ * routines.
+ */
+#define	HASHSIZE	128
+#define	HASHKEY(pgno)	((pgno - 1) % HASHSIZE)
+
+/* The BKT structures are the elements of the lists. */
+typedef struct BKT {
+	struct BKT	*hnext;		/* next hash bucket */
+	struct BKT	*hprev;		/* previous hash bucket */
+	struct BKT	*cnext;		/* next free/lru bucket */
+	struct BKT	*cprev;		/* previous free/lru bucket */
+	void		*page;		/* page */
+	pgno_t		pgno;		/* page number */
+
+#define	MPOOL_DIRTY	0x01		/* page needs to be written */
+#define	MPOOL_PINNED	0x02		/* page is pinned into memory */
+	unsigned long	flags;		/* flags */
+} BKT;
+
+/* The BKTHDR structures are the heads of the lists. */
+typedef struct BKTHDR {
+	struct BKT	*hnext;		/* next hash bucket */
+	struct BKT	*hprev;		/* previous hash bucket */
+	struct BKT	*cnext;		/* next free/lru bucket */
+	struct BKT	*cprev;		/* previous free/lru bucket */
+} BKTHDR;
+
+typedef struct MPOOL {
+	BKTHDR	free;			/* The free list. */
+	BKTHDR	lru;			/* The LRU list. */
+	BKTHDR	hashtable[HASHSIZE];	/* Hashed list by page number. */
+	pgno_t	curcache;		/* Current number of cached pages. */
+	pgno_t	maxcache;		/* Max number of cached pages. */
+	pgno_t	npages;			/* Number of pages in the file. */
+	u_long	pagesize;		/* File page size. */
+	int	fd;			/* File descriptor. */
+					/* Page in conversion routine. */
+	void    (*pgin) __P((void *, pgno_t, void *));
+					/* Page out conversion routine. */
+	void    (*pgout) __P((void *, pgno_t, void *));
+	void	*pgcookie;		/* Cookie for page in/out routines. */
+#ifdef STATISTICS
+	unsigned long	cachehit;
+	unsigned long	cachemiss;
+	unsigned long	pagealloc;
+	unsigned long	pageflush;
+	unsigned long	pageget;
+	unsigned long	pagenew;
+	unsigned long	pageput;
+	unsigned long	pageread;
+	unsigned long	pagewrite;
+#endif
+} MPOOL;
+
+#ifdef __MPOOLINTERFACE_PRIVATE
+/* Macros to insert/delete into/from hash chain. */
+#define rmhash(bp) { \
+        (bp)->hprev->hnext = (bp)->hnext; \
+        (bp)->hnext->hprev = (bp)->hprev; \
+}
+#define inshash(bp, pg) { \
+	hp = &mp->hashtable[HASHKEY(pg)]; \
+        (bp)->hnext = hp->hnext; \
+        (bp)->hprev = (struct BKT *)hp; \
+        hp->hnext->hprev = (bp); \
+        hp->hnext = (bp); \
+}
+
+/* Macros to insert/delete into/from lru and free chains. */
+#define	rmchain(bp) { \
+        (bp)->cprev->cnext = (bp)->cnext; \
+        (bp)->cnext->cprev = (bp)->cprev; \
+}
+#define inschain(bp, dp) { \
+        (bp)->cnext = (dp)->cnext; \
+        (bp)->cprev = (struct BKT *)(dp); \
+        (dp)->cnext->cprev = (bp); \
+        (dp)->cnext = (bp); \
+}
+#endif
+
+__BEGIN_DECLS
+MPOOL	*mpool_open __P((DBT *, int, pgno_t, pgno_t));
+void	 mpool_filter __P((MPOOL *, void (*)(void *, pgno_t, void *),
+	    void (*)(void *, pgno_t, void *), void *));
+void	*mpool_new __P((MPOOL *, pgno_t *));
+void	*mpool_get __P((MPOOL *, pgno_t, u_int));
+int	 mpool_put __P((MPOOL *, void *, u_int));
+int	 mpool_sync __P((MPOOL *));
+int	 mpool_close __P((MPOOL *));
+#ifdef STATISTICS
+void	 mpool_stat __P((MPOOL *));
+#endif
+__END_DECLS
diff --git a/include/stdio.h b/include/stdio.h
new file mode 100644
index 000000000000..b85af433dbb9
--- /dev/null
+++ b/include/stdio.h
@@ -0,0 +1,378 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 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.
+ *
+ *	@(#)stdio.h	8.5 (Berkeley) 4/29/95
+ */
+
+#ifndef	_STDIO_H_
+#define	_STDIO_H_
+
+#if !defined(_ANSI_SOURCE) && !defined(__STRICT_ANSI__)
+#include <sys/types.h>
+#endif
+
+#include <sys/cdefs.h>
+
+#include <machine/ansi.h>
+#ifdef	_BSD_SIZE_T_
+typedef	_BSD_SIZE_T_	size_t;
+#undef	_BSD_SIZE_T_
+#endif
+
+#ifndef NULL
+#define	NULL	0
+#endif
+
+/*
+ * This is fairly grotesque, but pure ANSI code must not inspect the
+ * innards of an fpos_t anyway.  The library internally uses off_t,
+ * which we assume is exactly as big as eight chars.  (When we switch
+ * to gcc 2.4 we will use __attribute__ here.)
+ *
+ * WARNING: the alignment constraints on an off_t and the struct below
+ * differ on (e.g.) the SPARC.  Hence, the placement of an fpos_t object
+ * in a structure will change if fpos_t's are not aligned on 8-byte
+ * boundaries.  THIS IS A CROCK, but for now there is no way around it.
+ */
+#if !defined(_ANSI_SOURCE) && !defined(__STRICT_ANSI__)
+typedef off_t fpos_t;
+#else
+typedef struct __sfpos {
+	char	_pos[8];
+} fpos_t;
+#endif
+
+#define	_FSTDIO			/* Define for new stdio with functions. */
+
+/*
+ * NB: to fit things in six character monocase externals, the stdio
+ * code uses the prefix `__s' for stdio objects, typically followed
+ * by a three-character attempt at a mnemonic.
+ */
+
+/* stdio buffers */
+struct __sbuf {
+	unsigned char *_base;
+	int	_size;
+};
+
+/*
+ * stdio state variables.
+ *
+ * The following always hold:
+ *
+ *	if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
+ *		_lbfsize is -_bf._size, else _lbfsize is 0
+ *	if _flags&__SRD, _w is 0
+ *	if _flags&__SWR, _r is 0
+ *
+ * This ensures that the getc and putc macros (or inline functions) never
+ * try to write or read from a file that is in `read' or `write' mode.
+ * (Moreover, they can, and do, automatically switch from read mode to
+ * write mode, and back, on "r+" and "w+" files.)
+ *
+ * _lbfsize is used only to make the inline line-buffered output stream
+ * code as compact as possible.
+ *
+ * _ub, _up, and _ur are used when ungetc() pushes back more characters
+ * than fit in the current _bf, or when ungetc() pushes back a character
+ * that does not match the previous one in _bf.  When this happens,
+ * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
+ * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
+ *
+ * NB: see WARNING above before changing the layout of this structure!
+ */
+typedef	struct __sFILE {
+	unsigned char *_p;	/* current position in (some) buffer */
+	int	_r;		/* read space left for getc() */
+	int	_w;		/* write space left for putc() */
+	short	_flags;		/* flags, below; this FILE is free if 0 */
+	short	_file;		/* fileno, if Unix descriptor, else -1 */
+	struct	__sbuf _bf;	/* the buffer (at least 1 byte, if !NULL) */
+	int	_lbfsize;	/* 0 or -_bf._size, for inline putc */
+
+	/* operations */
+	void	*_cookie;	/* cookie passed to io functions */
+	int	(*_close) __P((void *));
+	int	(*_read)  __P((void *, char *, int));
+	fpos_t	(*_seek)  __P((void *, fpos_t, int));
+	int	(*_write) __P((void *, const char *, int));
+
+	/* separate buffer for long sequences of ungetc() */
+	struct	__sbuf _ub;	/* ungetc buffer */
+	unsigned char *_up;	/* saved _p when _p is doing ungetc data */
+	int	_ur;		/* saved _r when _r is counting ungetc data */
+
+	/* tricks to meet minimum requirements even when malloc() fails */
+	unsigned char _ubuf[3];	/* guarantee an ungetc() buffer */
+	unsigned char _nbuf[1];	/* guarantee a getc() buffer */
+
+	/* separate buffer for fgetln() when line crosses buffer boundary */
+	struct	__sbuf _lb;	/* buffer for fgetln() */
+
+	/* Unix stdio files get aligned to block boundaries on fseek() */
+	int	_blksize;	/* stat.st_blksize (may be != _bf._size) */
+	fpos_t	_offset;	/* current lseek offset (see WARNING) */
+} FILE;
+
+__BEGIN_DECLS
+extern FILE __sF[];
+__END_DECLS
+
+#define	__SLBF	0x0001		/* line buffered */
+#define	__SNBF	0x0002		/* unbuffered */
+#define	__SRD	0x0004		/* OK to read */
+#define	__SWR	0x0008		/* OK to write */
+	/* RD and WR are never simultaneously asserted */
+#define	__SRW	0x0010		/* open for reading & writing */
+#define	__SEOF	0x0020		/* found EOF */
+#define	__SERR	0x0040		/* found error */
+#define	__SMBF	0x0080		/* _buf is from malloc */
+#define	__SAPP	0x0100		/* fdopen()ed in append mode */
+#define	__SSTR	0x0200		/* this is an sprintf/snprintf string */
+#define	__SOPT	0x0400		/* do fseek() optimisation */
+#define	__SNPT	0x0800		/* do not do fseek() optimisation */
+#define	__SOFF	0x1000		/* set iff _offset is in fact correct */
+#define	__SMOD	0x2000		/* true => fgetln modified _p text */
+
+/*
+ * The following three definitions are for ANSI C, which took them
+ * from System V, which brilliantly took internal interface macros and
+ * made them official arguments to setvbuf(), without renaming them.
+ * Hence, these ugly _IOxxx names are *supposed* to appear in user code.
+ *
+ * Although numbered as their counterparts above, the implementation
+ * does not rely on this.
+ */
+#define	_IOFBF	0		/* setvbuf should set fully buffered */
+#define	_IOLBF	1		/* setvbuf should set line buffered */
+#define	_IONBF	2		/* setvbuf should set unbuffered */
+
+#define	BUFSIZ	1024		/* size of buffer used by setbuf */
+#define	EOF	(-1)
+
+/*
+ * FOPEN_MAX is a minimum maximum, and is the number of streams that
+ * stdio can provide without attempting to allocate further resources
+ * (which could fail).  Do not use this for anything.
+ */
+				/* must be == _POSIX_STREAM_MAX <limits.h> */
+#define	FOPEN_MAX	20	/* must be <= OPEN_MAX <sys/syslimits.h> */
+#define	FILENAME_MAX	1024	/* must be <= PATH_MAX <sys/syslimits.h> */
+
+/* System V/ANSI C; this is the wrong way to do this, do *not* use these. */
+#ifndef _ANSI_SOURCE
+#define	P_tmpdir	"/var/tmp/"
+#endif
+#define	L_tmpnam	1024	/* XXX must be == PATH_MAX */
+#define	TMP_MAX		308915776
+
+#ifndef SEEK_SET
+#define	SEEK_SET	0	/* set file offset to offset */
+#endif
+#ifndef SEEK_CUR
+#define	SEEK_CUR	1	/* set file offset to current plus offset */
+#endif
+#ifndef SEEK_END
+#define	SEEK_END	2	/* set file offset to EOF plus offset */
+#endif
+
+#define	stdin	(&__sF[0])
+#define	stdout	(&__sF[1])
+#define	stderr	(&__sF[2])
+
+/*
+ * Functions defined in ANSI C standard.
+ */
+__BEGIN_DECLS
+void	 clearerr __P((FILE *));
+int	 fclose __P((FILE *));
+int	 feof __P((FILE *));
+int	 ferror __P((FILE *));
+int	 fflush __P((FILE *));
+int	 fgetc __P((FILE *));
+int	 fgetpos __P((FILE *, fpos_t *));
+char	*fgets __P((char *, size_t, FILE *));
+FILE	*fopen __P((const char *, const char *));
+int	 fprintf __P((FILE *, const char *, ...));
+int	 fputc __P((int, FILE *));
+int	 fputs __P((const char *, FILE *));
+size_t	 fread __P((void *, size_t, size_t, FILE *));
+FILE	*freopen __P((const char *, const char *, FILE *));
+int	 fscanf __P((FILE *, const char *, ...));
+int	 fseek __P((FILE *, long, int));
+int	 fsetpos __P((FILE *, const fpos_t *));
+long	 ftell __P((FILE *));
+size_t	 fwrite __P((const void *, size_t, size_t, FILE *));
+int	 getc __P((FILE *));
+int	 getchar __P((void));
+char	*gets __P((char *));
+#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
+extern int sys_nerr;			/* perror(3) external variables */
+extern __const char *__const sys_errlist[];
+#endif
+void	 perror __P((const char *));
+int	 printf __P((const char *, ...));
+int	 putc __P((int, FILE *));
+int	 putchar __P((int));
+int	 puts __P((const char *));
+int	 remove __P((const char *));
+int	 rename  __P((const char *, const char *));
+void	 rewind __P((FILE *));
+int	 scanf __P((const char *, ...));
+void	 setbuf __P((FILE *, char *));
+int	 setvbuf __P((FILE *, char *, int, size_t));
+int	 sprintf __P((char *, const char *, ...));
+int	 sscanf __P((const char *, const char *, ...));
+FILE	*tmpfile __P((void));
+char	*tmpnam __P((char *));
+int	 ungetc __P((int, FILE *));
+int	 vfprintf __P((FILE *, const char *, _BSD_VA_LIST_));
+int	 vprintf __P((const char *, _BSD_VA_LIST_));
+int	 vsprintf __P((char *, const char *, _BSD_VA_LIST_));
+__END_DECLS
+
+/*
+ * Functions defined in POSIX 1003.1.
+ */
+#ifndef _ANSI_SOURCE
+#define	L_cuserid	9	/* size for cuserid(); UT_NAMESIZE + 1 */
+#define	L_ctermid	1024	/* size for ctermid(); PATH_MAX */
+
+__BEGIN_DECLS
+char	*ctermid __P((char *));
+FILE	*fdopen __P((int, const char *));
+int	 fileno __P((FILE *));
+__END_DECLS
+#endif /* not ANSI */
+
+/*
+ * Routines that are purely local.
+ */
+#if !defined (_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
+__BEGIN_DECLS
+char	*fgetln __P((FILE *, size_t *));
+int	 fpurge __P((FILE *));
+int	 getw __P((FILE *));
+int	 pclose __P((FILE *));
+FILE	*popen __P((const char *, const char *));
+int	 putw __P((int, FILE *));
+void	 setbuffer __P((FILE *, char *, int));
+int	 setlinebuf __P((FILE *));
+char	*tempnam __P((const char *, const char *));
+int	 snprintf __P((char *, size_t, const char *, ...));
+int	 vsnprintf __P((char *, size_t, const char *, _BSD_VA_LIST_));
+int	 vscanf __P((const char *, _BSD_VA_LIST_));
+int	 vsscanf __P((const char *, const char *, _BSD_VA_LIST_));
+FILE	*zopen __P((const char *, const char *, int));
+__END_DECLS
+
+/*
+ * This is a #define because the function is used internally and
+ * (unlike vfscanf) the name __svfscanf is guaranteed not to collide
+ * with a user function when _ANSI_SOURCE or _POSIX_SOURCE is defined.
+ */
+#define	 vfscanf	__svfscanf
+
+/*
+ * Stdio function-access interface.
+ */
+__BEGIN_DECLS
+FILE	*funopen __P((const void *,
+		int (*)(void *, char *, int),
+		int (*)(void *, const char *, int),
+		fpos_t (*)(void *, fpos_t, int),
+		int (*)(void *)));
+__END_DECLS
+#define	fropen(cookie, fn) funopen(cookie, fn, 0, 0, 0)
+#define	fwopen(cookie, fn) funopen(cookie, 0, fn, 0, 0)
+#endif /* !_ANSI_SOURCE && !_POSIX_SOURCE */
+
+/*
+ * Functions internal to the implementation.
+ */
+__BEGIN_DECLS
+int	__srget __P((FILE *));
+int	__svfscanf __P((FILE *, const char *, _BSD_VA_LIST_));
+int	__swbuf __P((int, FILE *));
+__END_DECLS
+
+/*
+ * The __sfoo macros are here so that we can 
+ * define function versions in the C library.
+ */
+#define	__sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
+#if defined(__GNUC__) && defined(__STDC__)
+static __inline int __sputc(int _c, FILE *_p) {
+	if (--_p->_w >= 0 || (_p->_w >= _p->_lbfsize && (char)_c != '\n'))
+		return (*_p->_p++ = _c);
+	else
+		return (__swbuf(_c, _p));
+}
+#else
+/*
+ * This has been tuned to generate reasonable code on the vax using pcc.
+ */
+#define	__sputc(c, p) \
+	(--(p)->_w < 0 ? \
+		(p)->_w >= (p)->_lbfsize ? \
+			(*(p)->_p = (c)), *(p)->_p != '\n' ? \
+				(int)*(p)->_p++ : \
+				__swbuf('\n', p) : \
+			__swbuf((int)(c), p) : \
+		(*(p)->_p = (c), (int)*(p)->_p++))
+#endif
+
+#define	__sfeof(p)	(((p)->_flags & __SEOF) != 0)
+#define	__sferror(p)	(((p)->_flags & __SERR) != 0)
+#define	__sclearerr(p)	((void)((p)->_flags &= ~(__SERR|__SEOF)))
+#define	__sfileno(p)	((p)->_file)
+
+#define	feof(p)		__sfeof(p)
+#define	ferror(p)	__sferror(p)
+#define	clearerr(p)	__sclearerr(p)
+
+#ifndef _ANSI_SOURCE
+#define	fileno(p)	__sfileno(p)
+#endif
+
+#ifndef lint
+#define	getc(fp)	__sgetc(fp)
+#define putc(x, fp)	__sputc(x, fp)
+#endif /* lint */
+
+#define	getchar()	getc(stdin)
+#define	putchar(x)	putc(x, stdout)
+#endif /* _STDIO_H_ */
diff --git a/include/stdlib.h b/include/stdlib.h
new file mode 100644
index 000000000000..d93360e07360
--- /dev/null
+++ b/include/stdlib.h
@@ -0,0 +1,168 @@
+/*-
+ * Copyright (c) 1990, 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 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.
+ *
+ *	@(#)stdlib.h	8.5 (Berkeley) 5/19/95
+ */
+
+#ifndef _STDLIB_H_
+#define _STDLIB_H_
+
+#include <machine/ansi.h>
+
+#ifdef	_BSD_SIZE_T_
+typedef	_BSD_SIZE_T_	size_t;
+#undef	_BSD_SIZE_T_
+#endif
+
+#ifdef	_BSD_WCHAR_T_
+#ifndef _ANSI_SOURCE
+typedef	_BSD_WCHAR_T_	rune_t;
+#endif
+typedef	_BSD_WCHAR_T_	wchar_t;
+#undef	_BSD_WCHAR_T_
+#endif
+
+typedef struct {
+	int quot;		/* quotient */
+	int rem;		/* remainder */
+} div_t;
+
+typedef struct {
+	long quot;		/* quotient */
+	long rem;		/* remainder */
+} ldiv_t;
+
+#ifndef NULL
+#define	NULL	0
+#endif
+
+#define	EXIT_FAILURE	1
+#define	EXIT_SUCCESS	0
+
+#define	RAND_MAX	0x7fffffff
+
+extern int __mb_cur_max;
+#define	MB_CUR_MAX	__mb_cur_max
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+__dead void
+	 abort __P((void));
+__pure int
+	 abs __P((int));
+int	 atexit __P((void (*)(void)));
+double	 atof __P((const char *));
+int	 atoi __P((const char *));
+long	 atol __P((const char *));
+void	*bsearch __P((const void *, const void *, size_t,
+	    size_t, int (*)(const void *, const void *)));
+void	*calloc __P((size_t, size_t));
+__pure div_t
+	 div __P((int, int));
+__dead void
+	 exit __P((int));
+void	 free __P((void *));
+char	*getenv __P((const char *));
+__pure long
+	 labs __P((long));
+__pure ldiv_t
+	 ldiv __P((long, long));
+void	*malloc __P((size_t));
+void	 qsort __P((void *, size_t, size_t,
+	    int (*)(const void *, const void *)));
+int	 rand __P((void));
+void	*realloc __P((void *, size_t));
+void	 srand __P((unsigned));
+double	 strtod __P((const char *, char **));
+long	 strtol __P((const char *, char **, int));
+unsigned long
+	 strtoul __P((const char *, char **, int));
+int	 system __P((const char *));
+
+/* These are currently just stubs. */
+int	 mblen __P((const char *, size_t));
+size_t	 mbstowcs __P((wchar_t *, const char *, size_t));
+int	 wctomb __P((char *, wchar_t));
+int	 mbtowc __P((wchar_t *, const char *, size_t));
+size_t	 wcstombs __P((char *, const wchar_t *, size_t));
+
+#ifndef _ANSI_SOURCE
+int	 putenv __P((const char *));
+int	 setenv __P((const char *, const char *, int));
+#endif
+
+#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
+void	*alloca __P((size_t));		/* built-in for gcc */
+					/* getcap(3) functions */
+char	*getbsize __P((int *, long *));
+char	*cgetcap __P((char *, char *, int));
+int	 cgetclose __P((void));
+int	 cgetent __P((char **, char **, char *));
+int	 cgetfirst __P((char **, char **));
+int	 cgetmatch __P((char *, char *));
+int	 cgetnext __P((char **, char **));
+int	 cgetnum __P((char *, char *, long *));
+int	 cgetset __P((char *));
+int	 cgetstr __P((char *, char *, char **));
+int	 cgetustr __P((char *, char *, char **));
+
+int	 daemon __P((int, int));
+char	*devname __P((int, int));
+int	 getloadavg __P((double [], int));
+
+char	*group_from_gid __P((unsigned long, int));
+int	 heapsort __P((void *, size_t, size_t,
+	    int (*)(const void *, const void *)));
+char	*initstate __P((unsigned long, char *, long));
+int	 mergesort __P((void *, size_t, size_t,
+	    int (*)(const void *, const void *)));
+int	 radixsort __P((const unsigned char **, int, const unsigned char *,
+	    unsigned));
+int	 sradixsort __P((const unsigned char **, int, const unsigned char *,
+	    unsigned));
+long	 random __P((void));
+char	*realpath __P((const char *, char resolved_path[]));
+char	*setstate __P((char *));
+void	 srandom __P((unsigned long));
+char	*user_from_uid __P((unsigned long, int));
+#ifndef __STRICT_ANSI__
+long long
+	 strtoq __P((const char *, char **, int));
+unsigned long long
+	 strtouq __P((const char *, char **, int));
+#endif
+void	 unsetenv __P((const char *));
+#endif
+__END_DECLS
+
+#endif /* _STDLIB_H_ */
diff --git a/include/tzfile.h b/include/tzfile.h
new file mode 100644
index 000000000000..246e6a71ec41
--- /dev/null
+++ b/include/tzfile.h
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 1988, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Arthur David Olson of the National Cancer Institute.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 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.
+ *
+ *	@(#)tzfile.h	8.1 (Berkeley) 6/2/93
+ */
+
+#ifndef _TZFILE_H_
+#define	_TZFILE_H_
+
+/*
+ * Information about time zone files.
+ */
+			/* Time zone object file directory */
+#define TZDIR		"/usr/share/zoneinfo"
+#define TZDEFAULT	"/etc/localtime"
+#define TZDEFRULES	"posixrules"
+
+/*
+** Each file begins with. . .
+*/
+
+struct tzhead {
+	char	tzh_reserved[24];	/* reserved for future use */
+	char	tzh_ttisstdcnt[4];	/* coded number of trans. time flags */
+	char	tzh_leapcnt[4];		/* coded number of leap seconds */
+	char	tzh_timecnt[4];		/* coded number of transition times */
+	char	tzh_typecnt[4];		/* coded number of local time types */
+	char	tzh_charcnt[4];		/* coded number of abbr. chars */
+};
+
+/*
+** . . .followed by. . .
+**
+**	tzh_timecnt (char [4])s		coded transition times a la time(2)
+**	tzh_timecnt (unsigned char)s	types of local time starting at above
+**	tzh_typecnt repetitions of
+**		one (char [4])		coded GMT offset in seconds
+**		one (unsigned char)	used to set tm_isdst
+**		one (unsigned char)	that's an abbreviation list index
+**	tzh_charcnt (char)s		'\0'-terminated zone abbreviations
+**	tzh_leapcnt repetitions of
+**		one (char [4])		coded leap second transition times
+**		one (char [4])		total correction after above
+**	tzh_ttisstdcnt (char)s		indexed by type; if TRUE, transition
+**					time is standard time, if FALSE,
+**					transition time is wall clock time
+**					if absent, transition times are
+**					assumed to be wall clock time
+*/
+
+/*
+** In the current implementation, "tzset()" refuses to deal with files that
+** exceed any of the limits below.
+*/
+
+/*
+** The TZ_MAX_TIMES value below is enough to handle a bit more than a
+** year's worth of solar time (corrected daily to the nearest second) or
+** 138 years of Pacific Presidential Election time
+** (where there are three time zone transitions every fourth year).
+*/
+#define TZ_MAX_TIMES	370
+
+#define NOSOLAR			/* 4BSD doesn't currently handle solar time */
+
+#ifndef NOSOLAR
+#define TZ_MAX_TYPES	256	/* Limited by what (unsigned char)'s can hold */
+#else
+#define TZ_MAX_TYPES	10	/* Maximum number of local time types */
+#endif
+
+#define TZ_MAX_CHARS	50	/* Maximum number of abbreviation characters */
+
+#define	TZ_MAX_LEAPS	50	/* Maximum number of leap second corrections */
+
+#define SECSPERMIN	60
+#define MINSPERHOUR	60
+#define HOURSPERDAY	24
+#define DAYSPERWEEK	7
+#define DAYSPERNYEAR	365
+#define DAYSPERLYEAR	366
+#define SECSPERHOUR	(SECSPERMIN * MINSPERHOUR)
+#define SECSPERDAY	((long) SECSPERHOUR * HOURSPERDAY)
+#define MONSPERYEAR	12
+
+#define TM_SUNDAY	0
+#define TM_MONDAY	1
+#define TM_TUESDAY	2
+#define TM_WEDNESDAY	3
+#define TM_THURSDAY	4
+#define TM_FRIDAY	5
+#define TM_SATURDAY	6
+
+#define TM_JANUARY	0
+#define TM_FEBRUARY	1
+#define TM_MARCH	2
+#define TM_APRIL	3
+#define TM_MAY		4
+#define TM_JUNE		5
+#define TM_JULY		6
+#define TM_AUGUST	7
+#define TM_SEPTEMBER	8
+#define TM_OCTOBER	9
+#define TM_NOVEMBER	10
+#define TM_DECEMBER	11
+
+#define TM_YEAR_BASE	1900
+
+#define EPOCH_YEAR	1970
+#define EPOCH_WDAY	TM_THURSDAY
+
+/*
+** Accurate only for the past couple of centuries;
+** that will probably do.
+*/
+
+#define isleap(y) (((y) % 4) == 0 && ((y) % 100) != 0 || ((y) % 400) == 0)
+
+#endif /* !_TZFILE_H_ */
diff --git a/include/unistd.h b/include/unistd.h
new file mode 100644
index 000000000000..e194500c2bf0
--- /dev/null
+++ b/include/unistd.h
@@ -0,0 +1,183 @@
+/*-
+ * Copyright (c) 1991, 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.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 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.
+ *
+ *	@(#)unistd.h	8.12 (Berkeley) 4/27/95
+ */
+
+#ifndef _UNISTD_H_
+#define	_UNISTD_H_
+
+#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <sys/unistd.h>
+
+#define	 STDIN_FILENO	0	/* standard input file descriptor */
+#define	STDOUT_FILENO	1	/* standard output file descriptor */
+#define	STDERR_FILENO	2	/* standard error file descriptor */
+
+#ifndef NULL
+#define	NULL		0	/* null pointer constant */
+#endif
+
+__BEGIN_DECLS
+__dead void
+	 _exit __P((int));
+int	 access __P((const char *, int));
+unsigned int	 alarm __P((unsigned int));
+int	 chdir __P((const char *));
+int	 chown __P((const char *, uid_t, gid_t));
+int	 close __P((int));
+size_t	 confstr __P((int, char *, size_t));
+int	 dup __P((int));
+int	 dup2 __P((int, int));
+int	 execl __P((const char *, const char *, ...));
+int	 execle __P((const char *, const char *, ...));
+int	 execlp __P((const char *, const char *, ...));
+int	 execv __P((const char *, char * const *));
+int	 execve __P((const char *, char * const *, char * const *));
+int	 execvp __P((const char *, char * const *));
+pid_t	 fork __P((void));
+long	 fpathconf __P((int, int));
+char	*getcwd __P((char *, size_t));
+gid_t	 getegid __P((void));
+uid_t	 geteuid __P((void));
+gid_t	 getgid __P((void));
+int	 getgroups __P((int, gid_t []));
+char	*getlogin __P((void));
+pid_t	 getpgrp __P((void));
+pid_t	 getpid __P((void));
+pid_t	 getppid __P((void));
+uid_t	 getuid __P((void));
+int	 isatty __P((int));
+int	 link __P((const char *, const char *));
+off_t	 lseek __P((int, off_t, int));
+long	 pathconf __P((const char *, int));
+int	 pause __P((void));
+int	 pipe __P((int *));
+ssize_t	 read __P((int, void *, size_t));
+int	 rmdir __P((const char *));
+int	 setgid __P((gid_t));
+int	 setpgid __P((pid_t, pid_t));
+pid_t	 setsid __P((void));
+int	 setuid __P((uid_t));
+unsigned int	 sleep __P((unsigned int));
+long	 sysconf __P((int));
+pid_t	 tcgetpgrp __P((int));
+int	 tcsetpgrp __P((int, pid_t));
+char	*ttyname __P((int));
+int	 unlink __P((const char *));
+ssize_t	 write __P((int, const void *, size_t));
+
+extern char *optarg;			/* getopt(3) external variables */
+extern int optind, opterr, optopt;
+int	 getopt __P((int, char * const [], const char *));
+
+#ifndef	_POSIX_SOURCE
+#ifdef	__STDC__
+struct timeval;				/* select(2) */
+#endif
+int	 acct __P((const char *));
+int	 async_daemon __P((void));
+char	*brk __P((const char *));
+int	 chroot __P((const char *));
+char	*crypt __P((const char *, const char *));
+int	 des_cipher __P((const char *, char *, long, int));
+int	 des_setkey __P((const char *key));
+int	 encrypt __P((char *, int));
+void	 endusershell __P((void));
+int	 exect __P((const char *, char * const *, char * const *));
+int	 fchdir __P((int));
+int	 fchown __P((int, int, int));
+int	 fsync __P((int));
+int	 ftruncate __P((int, off_t));
+int	 getdtablesize __P((void));
+long	 gethostid __P((void));
+int	 gethostname __P((char *, int));
+mode_t	 getmode __P((const void *, mode_t));
+__pure int
+	 getpagesize __P((void));
+char	*getpass __P((const char *));
+char	*getusershell __P((void));
+char	*getwd __P((char *));			/* obsoleted by getcwd() */
+int	 initgroups __P((const char *, int));
+int	 iruserok __P((unsigned long, int, const char *, const char *));
+int	 mknod __P((const char *, mode_t, dev_t));
+int	 mkstemp __P((char *));
+char	*mktemp __P((char *));
+int	 nfssvc __P((int, void *));
+int	 nice __P((int));
+void	 psignal __P((unsigned int, const char *));
+extern __const char *__const sys_siglist[];
+int	 profil __P((char *, int, int, int));
+int	 rcmd __P((char **, int, const char *,
+		const char *, const char *, int *));
+char	*re_comp __P((const char *));
+int	 re_exec __P((const char *));
+int	 readlink __P((const char *, char *, int));
+int	 reboot __P((int));
+int	 revoke __P((const char *));
+int	 rresvport __P((int *));
+int	 ruserok __P((const char *, int, const char *, const char *));
+char	*sbrk __P((int));
+int	 select __P((int, fd_set *, fd_set *, fd_set *, struct timeval *));
+int	 setegid __P((gid_t));
+int	 seteuid __P((uid_t));
+int	 setgroups __P((int, const gid_t *));
+void	 sethostid __P((long));
+int	 sethostname __P((const char *, int));
+int	 setkey __P((const char *));
+int	 setlogin __P((const char *));
+void	*setmode __P((const char *));
+int	 setpgrp __P((pid_t pid, pid_t pgrp));	/* obsoleted by setpgid() */
+int	 setregid __P((gid_t, gid_t));
+int	 setreuid __P((uid_t, uid_t));
+int	 setrgid __P((gid_t));
+int	 setruid __P((uid_t));
+void	 setusershell __P((void));
+int	 swapon __P((const char *));
+int	 symlink __P((const char *, const char *));
+void	 sync __P((void));
+int	 syscall __P((int, ...));
+int	 truncate __P((const char *, off_t));
+int	 ttyslot __P((void));
+unsigned int	 ualarm __P((unsigned int, unsigned int));
+int	 unwhiteout __P((const char *));
+void	 usleep __P((unsigned int));
+void	*valloc __P((size_t));			/* obsoleted by malloc() */
+pid_t	 vfork __P((void));
+
+extern char *suboptarg;			/* getsubopt(3) external variable */
+int	 getsubopt __P((char **, char * const *, char **));
+#endif /* !_POSIX_SOURCE */
+__END_DECLS
+
+#endif /* !_UNISTD_H_ */