Import CSRG 4.4BSD-Lite2 includes onto vendor branch

This commit is contained in:
Peter Wemm 1997-03-11 11:11:37 +00:00
parent 92e2d9bed5
commit dee7a427ff
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/vendor/CSRG/dist/; revision=23650
7 changed files with 1245 additions and 0 deletions

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/*-
* 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_ */

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/*
* 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_ */

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/*-
* 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

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/*-
* 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_ */

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/*-
* 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_ */

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/*
* 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_ */

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/*-
* 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_ */