core/HFSUnicodeWrappers.h

   1 /*
   2  * Copyright (c) 2000-2003, 2005-2015 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 /*
  29         File:           HFSUnicodeWrappers.h
  30
  31         Contains:       IPI to Unicode routines used by File Manager.
  32
  33         Version:        HFS Plus 1.0
  34
  35         Written by:     Mark Day
  36
  37         Copyright:      (c) 1996-1997 by Apple Inc., all rights reserved.
  38
  39         File Ownership:
  40
  41                 DRI:                            xxx put dri here xxx
  42
  43                 Other Contact:          xxx put other contact here xxx
  44
  45                 Technology:                     xxx put technology here xxx
  46
  47         Writers:
  48
  49                 (DSH)   Deric Horn
  50                 (msd)   Mark Day
  51                 (djb)   Don Brady
  52
  53         Change History (most recent first):
  54
  55           <CS11>        11/16/97        djb             Change Unicode.h to UnicodeConverter.h.
  56           <CS10>         11/7/97        msd             Remove prototype for CompareUnicodeNames(). Add prototype for
  57                                                                         FastUnicodeCompare().
  58            <CS9>        10/13/97        djb             Add encoding/index macros and add prototypes for new Get/Set
  59                                                                         encodding routines.
  60            <CS8>         9/15/97        djb             InitUnicodeConverter now takes a boolean.
  61            <CS7>         9/10/97        msd             Add prototype for InitializeEncodingContext.
  62            <CS6>         6/26/97        DSH             Include  "MockConverter" prototype for DFA usage.
  63            <CS5>         6/25/97        DSH             Removed Prototype definitions, and checked in Unicode.h and
  64                                                                         TextCommon.h from Julio Gonzales into InternalInterfaces.
  65            <CS4>         6/25/97        msd             Add prototypes for some new Unicode routines that haven't
  66                                                                         appeared in MasterInterfaces yet.
  67            <CS3>         6/18/97        djb             Add more ConversionContexts routines.
  68            <CS2>         6/13/97        djb             Switched to ConvertUnicodeToHFSName, ConvertHFSNameToUnicode, &
  69                                                                         CompareUnicodeNames.
  70            <CS1>         4/28/97        djb             first checked in
  71           <HFS1>        12/12/96        msd             first checked in
  72
  73 */
  74 #ifndef _HFSUNICODEWRAPPERS_
  75 #define _HFSUNICODEWRAPPERS_
  76
  77 #include <sys/appleapiopts.h>
  78
  79 #ifdef KERNEL
  80 #ifdef __APPLE_API_PRIVATE
  81
  82 #include "hfs_macos_defs.h"
  83 #include "hfs_format.h"
  84
  85
  86 extern OSErr ConvertUnicodeToUTF8Mangled ( ByteCount srcLen,
  87                                                                         ConstUniCharArrayPtr srcStr,
  88                                                                         ByteCount maxDstLen,
  89                                                                         ByteCount *actualDstLen,
  90                                                                         unsigned char* dstStr ,
  91                                                                         HFSCatalogNodeID cnid);
  92
  93 /*
  94         This routine compares two Unicode names based on an ordering defined by the HFS Plus B-tree.
  95         This ordering must stay fixed for all time.
  96
  97         Output:
  98                 -n              name1 < name2   (i.e. name 1 sorts before name 2)
  99                  0              name1 = name2
 100                 +n              name1 > name2
 101
 102         NOTE: You should not depend on the magnitude of the result, just its sign.  That is, when name1 < name2, then any
 103         negative number may be returned.
 104 */
 105
 106 extern int32_t FastUnicodeCompare(register ConstUniCharArrayPtr str1, register ItemCount length1,
 107                                                                  register ConstUniCharArrayPtr str2, register ItemCount length2);
 108
 109 extern int32_t UnicodeBinaryCompare (register ConstUniCharArrayPtr str1, register ItemCount length1,
 110                                                                  register ConstUniCharArrayPtr str2, register ItemCount length2);
 111
 112 extern int32_t FastRelString( ConstStr255Param str1, ConstStr255Param str2 );
 113
 114
 115 extern HFSCatalogNodeID GetEmbeddedFileID( ConstStr31Param filename, u_int32_t length, u_int32_t *prefixLength );
 116 extern u_int32_t CountFilenameExtensionChars( const unsigned char * filename, u_int32_t length );
 117
 118 #endif /* __APPLE_API_PRIVATE */
 119 #endif /* KERNEL */
 120 #endif /* _HFSUNICODEWRAPPERS_ */