The Tor Browser: security/nss/lib/dbm/include/mcom

security/nss/lib/dbm/include/mcom_db.h@6474c204b198 (annotated)

security/nss/lib/dbm/include/mcom_db.h

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
 /*-
  * 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.
  * 3. ***REMOVED*** - see
  *    ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
  * 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.
  *
  *	@(#)db.h	8.7 (Berkeley) 6/16/94
  */
 #ifndef _DB_H_
 #define	_DB_H_
 #ifndef macintosh
 #include <sys/types.h>
 #endif
 #include "prtypes.h"
 #if !defined(XP_BEOS) && !defined(XP_OS2) && !defined(XP_UNIX) || defined(NTO)
 typedef PRUintn uint;
 #endif
 typedef PRUint8 uint8;
 typedef PRUint16 uint16;
 /* On AIX 5.2, sys/inttypes.h (which is included by sys/types.h)
  * defines the types int8, int16, int32, and int64. */
 #if !defined(AIX)
 typedef PRInt32 int32;
 #endif
 typedef PRUint32 uint32;
 #include <limits.h>
 #ifdef __DBINTERFACE_PRIVATE
 #ifdef HAVE_SYS_CDEFS_H
 #include <sys/cdefs.h>
 #else
 #include "cdefs.h"
 #endif
 #ifdef HAVE_SYS_BYTEORDER_H
 #include <sys/byteorder.h>
 #endif
 #if defined(__linux) || defined(__BEOS__)
 #include <endian.h>
 #ifndef BYTE_ORDER
 #define BYTE_ORDER    __BYTE_ORDER
 #define BIG_ENDIAN    __BIG_ENDIAN
 #define LITTLE_ENDIAN __LITTLE_ENDIAN
 #endif
 #endif /* __linux */
 #ifdef __sgi
 #define BYTE_ORDER BIG_ENDIAN
 #define BIG_ENDIAN      4321
 #define LITTLE_ENDIAN   1234            /* LSB first: i386, vax, all NT risc */
 #endif
 #ifdef __sun
 #define BIG_ENDIAN      4321
 #define LITTLE_ENDIAN   1234            /* LSB first: i386, vax, all NT risc */
 #ifndef __SVR4
 /* compat.h is only in 4.1.3 machines. - dp */
 #include <compat.h>
 #endif
 /* XXX - dp
  * Need to find a general way of defining endian-ness in SunOS 5.3
  * SunOS 5.4 defines _BIG_ENDIAN and _LITTLE_ENDIAN
  * SunOS 5.3 does nothing like this.
  */
 #ifndef BYTE_ORDER
 #if defined(_BIG_ENDIAN)
 #define BYTE_ORDER BIG_ENDIAN
 #elif defined(_LITTLE_ENDIAN)
 #define BYTE_ORDER LITTLE_ENDIAN
 #elif !defined(__SVR4)
 /* 4.1.3 is always BIG_ENDIAN as it was released only on sparc platforms. */
 #define BYTE_ORDER BIG_ENDIAN
 #elif !defined(vax) && !defined(ntohl) && !defined(lint) && !defined(i386)
 /* 5.3 big endian. Copied this above line from sys/byteorder.h */
 /* Now we are in a 5.3 SunOS rather non 5.4 or above SunOS  */
 #define BYTE_ORDER BIG_ENDIAN
 #else
 #define BYTE_ORDER LITTLE_ENDIAN
 #endif
 #endif /* !BYTE_ORDER */
 #endif /* __sun */
 #if defined(__hpux) || defined(__hppa)
 #define BYTE_ORDER BIG_ENDIAN
 #define BIG_ENDIAN      4321
 #define LITTLE_ENDIAN   1234            /* LSB first: i386, vax, all NT risc */
 #endif
 #if defined(AIXV3) || defined(AIX)
 /* BYTE_ORDER, LITTLE_ENDIAN, BIG_ENDIAN are all defined here */
 #include <sys/machine.h>
 #endif
 /* Digital Unix */
 #ifdef __osf__
 #include <machine/endian.h>
 #endif
 #ifdef __alpha
 #ifndef WIN32
 #else
 /* Alpha NT */
 #define BYTE_ORDER LITTLE_ENDIAN
 #define BIG_ENDIAN      4321
 #define LITTLE_ENDIAN   1234
 #endif
 #endif
 #ifdef NCR
 #include <sys/endian.h>
 #endif
 #ifdef __QNX__
 #ifdef __QNXNTO__
 #include <sys/param.h>
 #else
 #define LITTLE_ENDIAN	1234
 #define BIG_ENDIAN	4321
 #define BYTE_ORDER	LITTLE_ENDIAN
 #endif
 #endif
 #ifdef SNI
 /* #include <sys/hetero.h> */
 #define BYTE_ORDER BIG_ENDIAN
 #define BIG_ENDIAN      4321
 #define LITTLE_ENDIAN   1234
 #endif
 #ifdef _WINDOWS
 #ifdef BYTE_ORDER
 #undef BYTE_ORDER
 #endif
 #define BYTE_ORDER LITTLE_ENDIAN
 #define LITTLE_ENDIAN   1234            /* LSB first: i386, vax, all NT risc */
 #define BIG_ENDIAN      4321
 #endif
 #ifdef macintosh
 #define BIG_ENDIAN 4321
 #define LITTLE_ENDIAN 1234
 #define BYTE_ORDER BIG_ENDIAN
 #endif
 #endif  /* __DBINTERFACE_PRIVATE */
 #ifdef SCO
 #define MAXPATHLEN 	1024
 #endif
 #include <fcntl.h>
 #if defined(_WINDOWS) || defined(XP_OS2)
 #include <stdio.h>
 #include <io.h>
 #ifndef XP_OS2
 #define MAXPATHLEN 	1024
 #endif
 #define	EFTYPE		EINVAL		/* POSIX 1003.1 format errno. */
 #ifndef	STDERR_FILENO
 #define	STDIN_FILENO	0		/* ANSI C #defines */
 #define	STDOUT_FILENO	1
 #define	STDERR_FILENO	2
 #endif
 #ifndef O_ACCMODE			/* POSIX 1003.1 access mode mask. */
 #define	O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)
 #endif
 #endif
 #ifdef macintosh
 #include <stdio.h>
 #include "xp_mcom.h"
 #define O_ACCMODE       3       /* Mask for file access modes */
 #define EFTYPE 2000
 PR_BEGIN_EXTERN_C
 int mkstemp(const char *path);
 PR_END_EXTERN_C
 #endif	/* MACINTOSH */
 #if !defined(_WINDOWS) && !defined(macintosh)
 #include <sys/stat.h>
 #include <errno.h>
 #endif
 /* define EFTYPE since most don't */
 #ifndef EFTYPE
 #define EFTYPE      EINVAL      /* POSIX 1003.1 format errno. */
 #endif
 #define	RET_ERROR	-1		/* Return values. */
 #define	RET_SUCCESS	 0
 #define	RET_SPECIAL	 1
 #define	MAX_PAGE_NUMBER	0xffffffff	/* >= # of pages in a file */
 #ifndef __sgi
 typedef uint32	pgno_t;
 #endif
 #define	MAX_PAGE_OFFSET	65535		/* >= # of bytes in a page */
 typedef uint16	indx_t;
 #define	MAX_REC_NUMBER	0xffffffff	/* >= # of records in a tree */
 typedef uint32	recno_t;
 /* Key/data structure -- a Data-Base Thang. */
 typedef struct {
 	void	*data;			/* data */
 	size_t	 size;			/* data length */
 } DBT;
 /* Routine flags. */
 #define	R_CURSOR	1		/* del, put, seq */
 #define	__R_UNUSED	2		/* UNUSED */
 #define	R_FIRST		3		/* seq */
 #define	R_IAFTER	4		/* put (RECNO) */
 #define	R_IBEFORE	5		/* put (RECNO) */
 #define	R_LAST		6		/* seq (BTREE, RECNO) */
 #define	R_NEXT		7		/* seq */
 #define	R_NOOVERWRITE	8		/* put */
 #define	R_PREV		9		/* seq (BTREE, RECNO) */
 #define	R_SETCURSOR	10		/* put (RECNO) */
 #define	R_RECNOSYNC	11		/* sync (RECNO) */
 typedef enum { DB_BTREE, DB_HASH, DB_RECNO } DBTYPE;
 typedef enum { LockOutDatabase, UnlockDatabase } DBLockFlagEnum;
 /*
  * !!!
  * The following flags are included in the dbopen(3) call as part of the
  * open(2) flags.  In order to avoid conflicts with the open flags, start
  * at the top of the 16 or 32-bit number space and work our way down.  If
  * the open flags were significantly expanded in the future, it could be
  * a problem.  Wish I'd left another flags word in the dbopen call.
  *
  * !!!
  * None of this stuff is implemented yet.  The only reason that it's here
  * is so that the access methods can skip copying the key/data pair when
  * the DB_LOCK flag isn't set.
  */
 #if UINT_MAX > 65535
 #define	DB_LOCK		0x20000000	/* Do locking. */
 #define	DB_SHMEM	0x40000000	/* Use shared memory. */
 #define	DB_TXN		0x80000000	/* Do transactions. */
 #else
 #define	DB_LOCK		    0x2000	/* Do locking. */
 #define	DB_SHMEM	    0x4000	/* Use shared memory. */
 #define	DB_TXN		    0x8000	/* Do transactions. */
 #endif
 /* Access method description structure. */
 typedef struct __db {
 	DBTYPE type;			/* Underlying db type. */
 	int (*close)	(struct __db *);
 	int (*del)	(const struct __db *, const DBT *, uint);
 	int (*get)	(const struct __db *, const DBT *, DBT *, uint);
 	int (*put)	(const struct __db *, DBT *, const DBT *, uint);
 	int (*seq)	(const struct __db *, DBT *, DBT *, uint);
 	int (*sync)	(const struct __db *, uint);
 	void *internal;			/* Access method private. */
 	int (*fd)	(const struct __db *);
 } DB;
 #define	BTREEMAGIC	0x053162
 #define	BTREEVERSION	3
 /* Structure used to pass parameters to the btree routines. */
 typedef struct {
 #define	R_DUP		0x01	/* duplicate keys */
 	uint32	flags;
 	uint	cachesize;	/* bytes to cache */
 	int	maxkeypage;	/* maximum keys per page */
 	int	minkeypage;	/* minimum keys per page */
 	uint	psize;		/* page size */
 	int	(*compare)	/* comparison function */
 	    (const DBT *, const DBT *);
 	size_t	(*prefix)	/* prefix function */
 	    (const DBT *, const DBT *);
 	int	lorder;		/* byte order */
 } BTREEINFO;
 #define	HASHMAGIC	0x061561
 #define	HASHVERSION	2
 /* Structure used to pass parameters to the hashing routines. */
 typedef struct {
 	uint	bsize;		/* bucket size */
 	uint	ffactor;	/* fill factor */
 	uint	nelem;		/* number of elements */
 	uint	cachesize;	/* bytes to cache */
 	uint32		/* hash function */
 		(*hash) (const void *, size_t);
 	int	lorder;		/* byte order */
 } HASHINFO;
 /* Structure used to pass parameters to the record routines. */
 typedef struct {
 #define	R_FIXEDLEN	0x01	/* fixed-length records */
 #define	R_NOKEY		0x02	/* key not required */
 #define	R_SNAPSHOT	0x04	/* snapshot the input */
 	uint32	flags;
 	uint	cachesize;	/* bytes to cache */
 	uint	psize;		/* page size */
 	int	lorder;		/* byte order */
 	size_t	reclen;		/* record length (fixed-length records) */
 	uint8	bval;		/* delimiting byte (variable-length records */
 	char	*bfname;	/* btree file name */
 } RECNOINFO;
 #ifdef __DBINTERFACE_PRIVATE
 /*
  * Little endian <==> big endian 32-bit swap macros.
  *	M_32_SWAP	swap a memory location
  *	P_32_SWAP	swap a referenced memory location
  *	P_32_COPY	swap from one location to another
  */
 #define	M_32_SWAP(a) {							\
 	uint32 _tmp = a;						\
 	((char *)&a)[0] = ((char *)&_tmp)[3];				\
 	((char *)&a)[1] = ((char *)&_tmp)[2];				\
 	((char *)&a)[2] = ((char *)&_tmp)[1];				\
 	((char *)&a)[3] = ((char *)&_tmp)[0];				\
 }
 #define	P_32_SWAP(a) {							\
 	uint32 _tmp = *(uint32 *)a;				\
 	((char *)a)[0] = ((char *)&_tmp)[3];				\
 	((char *)a)[1] = ((char *)&_tmp)[2];				\
 	((char *)a)[2] = ((char *)&_tmp)[1];				\
 	((char *)a)[3] = ((char *)&_tmp)[0];				\
 }
 #define	P_32_COPY(a, b) {						\
 	((char *)&(b))[0] = ((char *)&(a))[3];				\
 	((char *)&(b))[1] = ((char *)&(a))[2];				\
 	((char *)&(b))[2] = ((char *)&(a))[1];				\
 	((char *)&(b))[3] = ((char *)&(a))[0];				\
 }
 /*
  * Little endian <==> big endian 16-bit swap macros.
  *	M_16_SWAP	swap a memory location
  *	P_16_SWAP	swap a referenced memory location
  *	P_16_COPY	swap from one location to another
  */
 #define	M_16_SWAP(a) {							\
 	uint16 _tmp = a;						\
 	((char *)&a)[0] = ((char *)&_tmp)[1];				\
 	((char *)&a)[1] = ((char *)&_tmp)[0];				\
 }
 #define	P_16_SWAP(a) {							\
 	uint16 _tmp = *(uint16 *)a;				\
 	((char *)a)[0] = ((char *)&_tmp)[1];				\
 	((char *)a)[1] = ((char *)&_tmp)[0];				\
 }
 #define	P_16_COPY(a, b) {						\
 	((char *)&(b))[0] = ((char *)&(a))[1];				\
 	((char *)&(b))[1] = ((char *)&(a))[0];				\
 }
 #endif
 PR_BEGIN_EXTERN_C
 extern DB *
 dbopen (const char *, int, int, DBTYPE, const void *);
 /* set or unset a global lock flag to disable the
  * opening of any DBM file
  */
 void dbSetOrClearDBLock(DBLockFlagEnum type);
 #ifdef __DBINTERFACE_PRIVATE
 DB	*__bt_open (const char *, int, int, const BTREEINFO *, int);
 DB	*__hash_open (const char *, int, int, const HASHINFO *, int);
 DB	*__rec_open (const char *, int, int, const RECNOINFO *, int);
 void	 __dbpanic (DB *dbp);
 #endif
 PR_END_EXTERN_C
 #endif /* !_DB_H_ */

The Tor Browser / annotate

security/nss/lib/dbm/include/mcom_db.h@6474c204b198 (annotated)

security/nss/lib/dbm/include/mcom_db.h