xnu-1228.9.59.tar.gz

[apple/xnu.git] / bsd / hfs / hfs_encodings.c

diff --git a/bsd/hfs/hfs_encodings.c b/bsd/hfs/hfs_encodings.c
index fdf03bc701619538fb374d0ac28db89b7e95f9bd..d0e89e8d8d47c5a5aba3d71fd1172d4de43f57f5 100644 (file)
--- a/bsd/hfs/hfs_encodings.c
+++ b/bsd/hfs/hfs_encodings.c
@@ -1,16 +1,19 @@
 /*
 /*

- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.

  *
  *

- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in

- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.

  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER


@@ -20,23 +23,32 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 

- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@

  */
  */

+#if HFS

 
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
 
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>

-#include <sys/lock.h>

 #include <sys/malloc.h>
 #include <sys/queue.h>
 #include <sys/utfconv.h>
 #include <sys/malloc.h>
 #include <sys/queue.h>
 #include <sys/utfconv.h>

+#include <kern/host.h>
+#include <mach/host_priv.h>

 
 #include "hfs.h"
 
 
 
 #include "hfs.h"
 
 

+lck_grp_t * encodinglst_lck_grp;
+lck_grp_attr_t * encodinglst_lck_grp_attr;
+lck_attr_t * encodinglst_lck_attr;
+
+

 /* hfs encoding converter list */
 SLIST_HEAD(encodinglst, hfs_encoding) hfs_encoding_list = {0};
 /* hfs encoding converter list */
 SLIST_HEAD(encodinglst, hfs_encoding) hfs_encoding_list = {0};

-decl_simple_lock_data(,hfs_encoding_list_slock);
+
+lck_mtx_t  encodinglst_mutex;
+

 
 
 /* hfs encoding converter entry */
 
 
 /* hfs encoding converter entry */


@@ -44,27 +56,25 @@ struct      hfs_encoding {
        SLIST_ENTRY(hfs_encoding)  link;
        int                     refcount;
        int                     kmod_id;
        SLIST_ENTRY(hfs_encoding)  link;
        int                     refcount;
        int                     kmod_id;

-       UInt32                  encoding;
+       u_int32_t       encoding;

        hfs_to_unicode_func_t   get_unicode_func;
        unicode_to_hfs_func_t   get_hfsname_func;
 };
 
        hfs_to_unicode_func_t   get_unicode_func;
        unicode_to_hfs_func_t   get_hfsname_func;
 };
 

-/* XXX We should use an "official" interface! */
-extern kern_return_t kmod_destroy(host_priv_t host_priv, kmod_t id);
-extern struct host realhost;
-

 #define MAX_HFS_UNICODE_CHARS  (15*5)
 
 #define MAX_HFS_UNICODE_CHARS  (15*5)
 

-int mac_roman_to_unicode(Str31 hfs_str, UniChar *uni_str, UInt32 maxCharLen, UInt32 *usedCharLen);
-
-static int unicode_to_mac_roman(UniChar *uni_str, UInt32 unicodeChars, Str31 hfs_str);
-
+static int unicode_to_mac_roman(UniChar *uni_str, u_int32_t unicodeChars, Str31 hfs_str);

 
 void
 hfs_converterinit(void)
 {
        SLIST_INIT(&hfs_encoding_list);
 
 void
 hfs_converterinit(void)
 {
        SLIST_INIT(&hfs_encoding_list);

-       simple_lock_init(&hfs_encoding_list_slock);
+
+       encodinglst_lck_grp_attr= lck_grp_attr_alloc_init();
+       encodinglst_lck_grp  = lck_grp_alloc_init("cnode_hash", encodinglst_lck_grp_attr);
+       encodinglst_lck_attr = lck_attr_alloc_init();
+
+       lck_mtx_init(&encodinglst_mutex, encodinglst_lck_grp, encodinglst_lck_attr);

 
        /*
         * add resident MacRoman converter and take a reference
 
        /*
         * add resident MacRoman converter and take a reference


@@ -84,13 +94,13 @@ hfs_converterinit(void)
  *
  */
 int
  *
  */
 int

-hfs_addconverter(int id, UInt32 encoding, hfs_to_unicode_func_t get_unicode, unicode_to_hfs_func_t get_hfsname)
+hfs_addconverter(int id, u_int32_t encoding, hfs_to_unicode_func_t get_unicode, unicode_to_hfs_func_t get_hfsname)

 {
        struct hfs_encoding *encp;
        
        MALLOC(encp, struct hfs_encoding *, sizeof(struct hfs_encoding), M_TEMP, M_WAITOK);
 
 {
        struct hfs_encoding *encp;
        
        MALLOC(encp, struct hfs_encoding *, sizeof(struct hfs_encoding), M_TEMP, M_WAITOK);
 

-       simple_lock(&hfs_encoding_list_slock);
+       lck_mtx_lock(&encodinglst_mutex);

 
        encp->link.sle_next = NULL;
        encp->refcount = 0;
 
        encp->link.sle_next = NULL;
        encp->refcount = 0;


@@ -100,7 +110,7 @@ hfs_addconverter(int id, UInt32 encoding, hfs_to_unicode_func_t get_unicode, uni
        encp->kmod_id = id;
        SLIST_INSERT_HEAD(&hfs_encoding_list, encp, link);
 
        encp->kmod_id = id;
        SLIST_INSERT_HEAD(&hfs_encoding_list, encp, link);
 

-       simple_unlock(&hfs_encoding_list_slock);
+       lck_mtx_unlock(&encodinglst_mutex);

        return (0);
 }
 
        return (0);
 }
 


@@ -117,12 +127,11 @@ hfs_addconverter(int id, UInt32 encoding, hfs_to_unicode_func_t get_unicode, uni
  * The call is initiated from within the kernel during the unmounting of an hfs voulume.
  */
 int
  * The call is initiated from within the kernel during the unmounting of an hfs voulume.
  */
 int

-hfs_remconverter(int id, UInt32 encoding)
+hfs_remconverter(int id, u_int32_t encoding)

 {
        struct hfs_encoding *encp;
 {
        struct hfs_encoding *encp;

-       int busy = 0;

 
 

-       simple_lock(&hfs_encoding_list_slock);
+       lck_mtx_lock(&encodinglst_mutex);

        SLIST_FOREACH(encp, &hfs_encoding_list, link) {
                if (encp->encoding == encoding && encp->kmod_id == id) {
                        encp->refcount--;
        SLIST_FOREACH(encp, &hfs_encoding_list, link) {
                if (encp->encoding == encoding && encp->kmod_id == id) {
                        encp->refcount--;


@@ -130,16 +139,19 @@ hfs_remconverter(int id, UInt32 encoding)
                        /* if converter is no longer in use, release it */
                        if (encp->refcount <= 0 && encp->kmod_id != 0) {
                                SLIST_REMOVE(&hfs_encoding_list, encp, hfs_encoding, link);
                        /* if converter is no longer in use, release it */
                        if (encp->refcount <= 0 && encp->kmod_id != 0) {
                                SLIST_REMOVE(&hfs_encoding_list, encp, hfs_encoding, link);

+                               lck_mtx_unlock(&encodinglst_mutex);

                                FREE(encp, M_TEMP);
                                FREE(encp, M_TEMP);

+                               return (0);

                        } else {
                        } else {

-                               busy = 1;
+                               lck_mtx_unlock(&encodinglst_mutex);
+                               return (1);   /* busy */

                        }
                        break;
                }
        }
                        }
                        break;
                }
        }

-       simple_unlock(&hfs_encoding_list_slock);
+       lck_mtx_unlock(&encodinglst_mutex);

 
 

-       return (busy);
+       return (0);

 }
 
 
 }
 
 


@@ -149,12 +161,12 @@ hfs_remconverter(int id, UInt32 encoding)
  * Normally called during the mounting of an hfs voulume.
  */
 int
  * Normally called during the mounting of an hfs voulume.
  */
 int

-hfs_getconverter(UInt32 encoding, hfs_to_unicode_func_t *get_unicode, unicode_to_hfs_func_t *get_hfsname)
+hfs_getconverter(u_int32_t encoding, hfs_to_unicode_func_t *get_unicode, unicode_to_hfs_func_t *get_hfsname)

 {
        struct hfs_encoding *encp;
        int found = 0;
 
 {
        struct hfs_encoding *encp;
        int found = 0;
 

-       simple_lock(&hfs_encoding_list_slock);
+       lck_mtx_lock(&encodinglst_mutex);

        SLIST_FOREACH(encp, &hfs_encoding_list, link) {
                if (encp->encoding == encoding) {
                        found = 1;
        SLIST_FOREACH(encp, &hfs_encoding_list, link) {
                if (encp->encoding == encoding) {
                        found = 1;


@@ -164,7 +176,7 @@ hfs_getconverter(UInt32 encoding, hfs_to_unicode_func_t *get_unicode, unicode_to
                        break;
                }
        }
                        break;
                }
        }

-       simple_unlock(&hfs_encoding_list_slock);
+       lck_mtx_unlock(&encodinglst_mutex);

 
        if (!found) {
                *get_unicode = NULL;
 
        if (!found) {
                *get_unicode = NULL;


@@ -182,15 +194,13 @@ hfs_getconverter(UInt32 encoding, hfs_to_unicode_func_t *get_unicode, unicode_to
  * Normally called during the unmounting of an hfs voulume.
  */
 int
  * Normally called during the unmounting of an hfs voulume.
  */
 int

-hfs_relconverter(UInt32 encoding)
+hfs_relconverter(u_int32_t encoding)

 {
        struct hfs_encoding *encp;
 {
        struct hfs_encoding *encp;

-       int found = 0;

 
 

-       simple_lock(&hfs_encoding_list_slock);
+       lck_mtx_lock(&encodinglst_mutex);

        SLIST_FOREACH(encp, &hfs_encoding_list, link) {
                if (encp->encoding == encoding) {
        SLIST_FOREACH(encp, &hfs_encoding_list, link) {
                if (encp->encoding == encoding) {

-                       found = 1;

                        encp->refcount--;
                        
                        /* if converter is no longer in use, release it */
                        encp->refcount--;
                        
                        /* if converter is no longer in use, release it */


@@ -198,19 +208,19 @@ hfs_relconverter(UInt32 encoding)
                                int id = encp->kmod_id;
 
                                SLIST_REMOVE(&hfs_encoding_list, encp, hfs_encoding, link);
                                int id = encp->kmod_id;
 
                                SLIST_REMOVE(&hfs_encoding_list, encp, hfs_encoding, link);

-                               FREE(encp, M_TEMP);
-                               encp = NULL;
-
-                               simple_unlock(&hfs_encoding_list_slock);
-                               kmod_destroy(host_priv_self(), id);
-                               simple_lock(&hfs_encoding_list_slock);
+                               lck_mtx_unlock(&encodinglst_mutex);
+ 
+                               FREE(encp, M_TEMP);
+                               kmod_destroy((host_priv_t) host_priv_self(), id);
+                               return (0);

                        }
                        }

-                       break;
+                       lck_mtx_unlock(&encodinglst_mutex);
+                       return (0);

                }
        }
                }
        }

-       simple_unlock(&hfs_encoding_list_slock);
+       lck_mtx_unlock(&encodinglst_mutex);

 
 

-       return (found ? 0 : EINVAL);
+       return (EINVAL);

 }
 
 
 }
 
 


@@ -221,7 +231,7 @@ hfs_relconverter(UInt32 encoding)
  * '/' chars are converted to ':'
  */
 int
  * '/' chars are converted to ':'
  */
 int

-hfs_to_utf8(ExtendedVCB *vcb, Str31 hfs_str, ByteCount maxDstLen, ByteCount *actualDstLen, unsigned char* dstStr)
+hfs_to_utf8(ExtendedVCB *vcb, const Str31 hfs_str, ByteCount maxDstLen, ByteCount *actualDstLen, unsigned char* dstStr)

 {
        int error;
        UniChar uniStr[MAX_HFS_UNICODE_CHARS];
 {
        int error;
        UniChar uniStr[MAX_HFS_UNICODE_CHARS];


@@ -251,7 +261,7 @@ hfs_to_utf8(ExtendedVCB *vcb, Str31 hfs_str, ByteCount maxDstLen, ByteCount *act
  * volume encoding then MacRoman is used as a fallback.
  */
 int
  * volume encoding then MacRoman is used as a fallback.
  */
 int

-mac_roman_to_utf8(Str31 hfs_str, ByteCount maxDstLen, ByteCount *actualDstLen, unsigned char* dstStr)
+mac_roman_to_utf8(const Str31 hfs_str, ByteCount maxDstLen, ByteCount *actualDstLen, unsigned char* dstStr)

 {
        int error;
        UniChar uniStr[MAX_HFS_UNICODE_CHARS];
 {
        int error;
        UniChar uniStr[MAX_HFS_UNICODE_CHARS];


@@ -334,7 +344,7 @@ utf8_to_mac_roman(ByteCount srcLen, const unsigned char* srcStr, Str31 dstStr)
  */
 
 /* 0x00A0 - 0x00FF = Latin 1 Supplement (30 total) */
  */
 
 /* 0x00A0 - 0x00FF = Latin 1 Supplement (30 total) */

-static UInt8 gLatin1Table[] = {
+static u_int8_t gLatin1Table[] = {

   /*             0     1     2     3     4     5     6     7     8     9     A     B     C     D     E     F  */
   /* 0x00A0 */ 0xCA, 0xC1, 0xA2, 0xA3, 0xDB, 0xB4,  '?', 0xA4, 0xAC, 0xA9, 0xBB, 0xC7, 0xC2,  '?', 0xA8, 0xF8,
   /* 0x00B0 */ 0xA1, 0XB1,  '?',  '?', 0xAB, 0xB5, 0xA6, 0xe1, 0xFC,  '?', 0xBC, 0xC8,  '?',  '?',  '?', 0xC0,
   /*             0     1     2     3     4     5     6     7     8     9     A     B     C     D     E     F  */
   /* 0x00A0 */ 0xCA, 0xC1, 0xA2, 0xA3, 0xDB, 0xB4,  '?', 0xA4, 0xAC, 0xA9, 0xBB, 0xC7, 0xC2,  '?', 0xA8, 0xF8,
   /* 0x00B0 */ 0xA1, 0XB1,  '?',  '?', 0xAB, 0xB5, 0xA6, 0xe1, 0xFC,  '?', 0xBC, 0xC8,  '?',  '?',  '?', 0xC0,


@@ -345,14 +355,14 @@ static UInt8 gLatin1Table[] = {
 };
 
 /* 0x02C0 - 0x02DF = Spacing Modifiers (8 total) */
 };
 
 /* 0x02C0 - 0x02DF = Spacing Modifiers (8 total) */

-static UInt8 gSpaceModsTable[] = {
+static u_int8_t gSpaceModsTable[] = {

   /*             0     1     2     3     4     5     6     7     8     9     A     B     C     D     E     F  */
   /* 0x02C0 */  '?',  '?',  '?',  '?',  '?',  '?', 0xF6, 0xFF,  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?',
   /* 0x02D0 */  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?', 0xF9, 0xFA, 0xFB, 0xFE, 0xF7, 0xFD,  '?',  '?'
 };
 
 /* 0x2010 - 0x20AF = General Punctuation (17 total) */
   /*             0     1     2     3     4     5     6     7     8     9     A     B     C     D     E     F  */
   /* 0x02C0 */  '?',  '?',  '?',  '?',  '?',  '?', 0xF6, 0xFF,  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?',
   /* 0x02D0 */  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?', 0xF9, 0xFA, 0xFB, 0xFE, 0xF7, 0xFD,  '?',  '?'
 };
 
 /* 0x2010 - 0x20AF = General Punctuation (17 total) */

-static UInt8 gPunctTable[] = {
+static u_int8_t gPunctTable[] = {

   /*             0     1     2     3     4     5     6     7     8     9     A     B     C     D     E     F  */
   /* 0x2010 */  '?',  '?',  '?', 0xd0, 0xd1,  '?',  '?',  '?', 0xd4, 0xd5, 0xe2,  '?', 0xd2, 0xd3, 0xe3,  '?',
   /* 0x2020 */ 0xa0, 0xe0, 0xa5,  '?',  '?',  '?', 0xc9,  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?',
   /*             0     1     2     3     4     5     6     7     8     9     A     B     C     D     E     F  */
   /* 0x2010 */  '?',  '?',  '?', 0xd0, 0xd1,  '?',  '?',  '?', 0xd4, 0xd5, 0xe2,  '?', 0xd2, 0xd3, 0xe3,  '?',
   /* 0x2020 */ 0xa0, 0xe0, 0xa5,  '?',  '?',  '?', 0xc9,  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?',


@@ -367,7 +377,7 @@ static UInt8 gPunctTable[] = {
 };
 
 /* 0x22xx = Mathematical Operators (11 total) */
 };
 
 /* 0x22xx = Mathematical Operators (11 total) */

-static UInt8 gMathTable[] = {
+static u_int8_t gMathTable[] = {

   /*             0     1     2     3     4     5     6     7     8     9     A     B     C     D     E     F  */
   /* 0x2200 */  '?',  '?', 0xb6,  '?',  '?',  '?', 0xc6,  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?', 0xb8,
   /* 0x2210 */  '?', 0xb7,  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?', 0xc3,  '?',  '?',  '?', 0xb0,  '?',
   /*             0     1     2     3     4     5     6     7     8     9     A     B     C     D     E     F  */
   /* 0x2200 */  '?',  '?', 0xb6,  '?',  '?',  '?', 0xc6,  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?', 0xb8,
   /* 0x2210 */  '?', 0xb7,  '?',  '?',  '?',  '?',  '?',  '?',  '?',  '?', 0xc3,  '?',  '?',  '?', 0xb0,  '?',


@@ -379,7 +389,7 @@ static UInt8 gMathTable[] = {
 };
 
 /* */
 };
 
 /* */

-static UInt8 gReverseCombTable[] = {
+static u_int8_t gReverseCombTable[] = {

   /*             0     1     2     3     4     5     6     7     8     9     A     B     C     D     E     F  */
   /* 0x40 */   0xDA, 0x40, 0xDA, 0xDA, 0xDA, 0x56, 0xDA, 0xDA, 0xDA, 0x6C, 0xDA, 0xDA, 0xDA, 0xDA, 0x82, 0x98,
   /* 0x50 */   0xDA, 0xDA, 0xDA, 0xDA, 0xDA, 0xAE, 0xDA, 0xDA, 0xDA, 0xC4, 0xDA, 0xDA, 0xDA, 0xDA, 0xDA, 0xDA,
   /*             0     1     2     3     4     5     6     7     8     9     A     B     C     D     E     F  */
   /* 0x40 */   0xDA, 0x40, 0xDA, 0xDA, 0xDA, 0x56, 0xDA, 0xDA, 0xDA, 0x6C, 0xDA, 0xDA, 0xDA, 0xDA, 0x82, 0x98,
   /* 0x50 */   0xDA, 0xDA, 0xDA, 0xDA, 0xDA, 0xAE, 0xDA, 0xDA, 0xDA, 0xC4, 0xDA, 0xDA, 0xDA, 0xDA, 0xDA, 0xDA,


@@ -440,18 +450,18 @@ static UInt8 gReverseCombTable[] = {
  *
  * Assumes Unicode input is fully decomposed
  */
  *
  * Assumes Unicode input is fully decomposed
  */

-static int unicode_to_mac_roman(UniChar *uni_str, UInt32 unicodeChars, Str31 hfs_str)
+static int unicode_to_mac_roman(UniChar *uni_str, u_int32_t unicodeChars, Str31 hfs_str)

 {
 {

-       UInt8           *p;
+       u_int8_t        *p;

        const UniChar   *u;
        UniChar         c;
        UniChar         mask;
        const UniChar   *u;
        UniChar         c;
        UniChar         mask;

-       UInt16          inputChars;
-       UInt16          pascalChars;
+       u_int16_t       inputChars;
+       u_int16_t       pascalChars;

        OSErr           result = noErr;
        OSErr           result = noErr;

-       UInt8           lsb;
-       UInt8           prevChar;
-       UInt8           mc;
+       u_int8_t        lsb;
+       u_int8_t        prevChar;
+       u_int8_t        mc;

 
        mask = (UniChar) 0xFF80;
        p = &hfs_str[1];
 
        mask = (UniChar) 0xFF80;
        p = &hfs_str[1];


@@ -461,7 +471,7 @@ static int unicode_to_mac_roman(UniChar *uni_str, UInt32 unicodeChars, Str31 hfs
        
        while (inputChars) {
                c = *(u++);
        
        while (inputChars) {
                c = *(u++);

-               lsb = (UInt8) c;
+               lsb = (u_int8_t) c;

 
                /*
                 * If its not 7-bit ascii, then we need to map it
 
                /*
                 * If its not 7-bit ascii, then we need to map it


@@ -614,13 +624,13 @@ static UniChar gHiBitCombUnicode[128] = {
  * Unicode output is fully decomposed
  */
 int
  * Unicode output is fully decomposed
  */
 int

-mac_roman_to_unicode(Str31 hfs_str, UniChar *uni_str,
-                               UInt32 maxCharLen, UInt32 *unicodeChars)
+mac_roman_to_unicode(const Str31 hfs_str, UniChar *uni_str,
+                               __unused u_int32_t maxCharLen, u_int32_t *unicodeChars)

 {
 {

-       const UInt8  *p;
+       const u_int8_t  *p;

        UniChar  *u;
        UniChar  *u;

-       UInt16  pascalChars;
-       UInt8  c;
+       u_int16_t  pascalChars;
+       u_int8_t  c;

 
        p = hfs_str;
        u = uni_str;
 
        p = hfs_str;
        u = uni_str;


@@ -630,7 +640,7 @@ mac_roman_to_unicode(Str31 hfs_str, UniChar *uni_str,
        while (pascalChars--) {
                c = *(p++);
 
        while (pascalChars--) {
                c = *(p++);
 

-               if ( (SInt8) c >= 0 ) {         /* check if seven bit ascii */
+               if ( (int8_t) c >= 0 ) {                /* check if seven bit ascii */

                        *(u++) = (UniChar) c;   /* just pad high byte with zero */
                } else { /* its a hi bit character */
                        UniChar uc;
                        *(u++) = (UniChar) c;   /* just pad high byte with zero */
                } else { /* its a hi bit character */
                        UniChar uc;


@@ -652,3 +662,38 @@ mac_roman_to_unicode(Str31 hfs_str, UniChar *uni_str,
        return noErr;
 }
 
        return noErr;
 }
 

+#else /* not HFS - temp workaround until 4277828 is fixed */
+/* stubs for exported routines that aren't present when we build kernel without HFS */
+
+#include <sys/types.h>
+#include <sys/errno.h>
+
+int hfs_addconverter(int id, u_int32_t encoding, void * get_unicode, void * get_hfsname);
+int hfs_getconverter(u_int32_t encoding, void *get_unicode, void *get_hfsname);
+int hfs_relconverter(u_int32_t encoding);
+int hfs_remconverter(int id, u_int32_t encoding);
+
+int hfs_addconverter( __unused int id, 
+                                         __unused u_int32_t encoding, 
+                                         __unused void * get_unicode, 
+                                         __unused void * get_hfsname )
+{
+       return(0);
+}
+
+int hfs_getconverter(__unused u_int32_t encoding, __unused void *get_unicode, __unused void *get_hfsname)
+{
+       return(EINVAL);
+}
+
+int hfs_relconverter(__unused u_int32_t encoding)
+{
+       return(EINVAL);
+}
+
+int hfs_remconverter(__unused int id, __unused u_int32_t encoding)
+{
+       return(0);
+}
+
+#endif /* HFS */