auto import from //depot/cupcake/@135843

1 files changed, 811 insertions, 0 deletions

diff --git a/src/base/ftrfork.c b/src/base/ftrfork.c
new file mode 100644
index 0000000..5a835ee
--- /dev/null
+++ b/src/base/ftrfork.c
@@ -0,0 +1,811 @@
+/***************************************************************************/
+/*                                                                         */
+/*  ftrfork.c                                                              */
+/*                                                                         */
+/*    Embedded resource forks accessor (body).                             */
+/*                                                                         */
+/*  Copyright 2004, 2005, 2006, 2007 by                                    */
+/*  Masatake YAMATO and Redhat K.K.                                        */
+/*                                                                         */
+/*  FT_Raccess_Get_HeaderInfo() and raccess_guess_darwin_hfsplus() are     */
+/*  derived from ftobjs.c.                                                 */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+/***************************************************************************/
+/* Development of the code in this file is support of                      */
+/* Information-technology Promotion Agency, Japan.                         */
+/***************************************************************************/
+
+
+#include <ft2build.h>
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_STREAM_H
+#include FT_INTERNAL_RFORK_H
+
+
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_raccess
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****                                                                 ****/
+  /****               Resource fork directory access                    ****/
+  /****                                                                 ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  FT_BASE_DEF( FT_Error )
+  FT_Raccess_Get_HeaderInfo( FT_Library  library,
+                             FT_Stream   stream,
+                             FT_Long     rfork_offset,
+                             FT_Long    *map_offset,
+                             FT_Long    *rdata_pos )
+  {
+    FT_Error       error;
+    unsigned char  head[16], head2[16];
+    FT_Long        map_pos, rdata_len;
+    int            allzeros, allmatch, i;
+    FT_Long        type_list;
+
+    FT_UNUSED( library );
+
+
+    error = FT_Stream_Seek( stream, rfork_offset );
+    if ( error )
+      return error;
+
+    error = FT_Stream_Read( stream, (FT_Byte *)head, 16 );
+    if ( error )
+      return error;
+
+    *rdata_pos = rfork_offset + ( ( head[0] << 24 ) |
+                                  ( head[1] << 16 ) |
+                                  ( head[2] <<  8 ) |
+                                    head[3]         );
+    map_pos    = rfork_offset + ( ( head[4] << 24 ) |
+                                  ( head[5] << 16 ) |
+                                  ( head[6] <<  8 ) |
+                                    head[7]         );
+    rdata_len = ( head[ 8] << 24 ) |
+                ( head[ 9] << 16 ) |
+                ( head[10] <<  8 ) |
+                  head[11];
+
+    /* map_len = head[12] .. head[15] */
+
+    if ( *rdata_pos + rdata_len != map_pos || map_pos == rfork_offset )
+      return FT_Err_Unknown_File_Format;
+
+    error = FT_Stream_Seek( stream, map_pos );
+    if ( error )
+      return error;
+
+    head2[15] = (FT_Byte)( head[15] + 1 );       /* make it be different */
+
+    error = FT_Stream_Read( stream, (FT_Byte*)head2, 16 );
+    if ( error )
+      return error;
+
+    allzeros = 1;
+    allmatch = 1;
+    for ( i = 0; i < 16; ++i )
+    {
+      if ( head2[i] != 0 )
+        allzeros = 0;
+      if ( head2[i] != head[i] )
+        allmatch = 0;
+    }
+    if ( !allzeros && !allmatch )
+      return FT_Err_Unknown_File_Format;
+
+    /* If we have reached this point then it is probably a mac resource */
+    /* file.  Now, does it contain any interesting resources?           */
+    /* Skip handle to next resource map, the file resource number, and  */
+    /* attributes.                                                      */
+    (void)FT_STREAM_SKIP( 4        /* skip handle to next resource map */
+                          + 2      /* skip file resource number */
+                          + 2 );   /* skip attributes */
+
+    if ( FT_READ_USHORT( type_list ) )
+      return error;
+    if ( type_list == -1 )
+      return FT_Err_Unknown_File_Format;
+
+    error = FT_Stream_Seek( stream, map_pos + type_list );
+    if ( error )
+      return error;
+
+    *map_offset = map_pos + type_list;
+    return FT_Err_Ok;
+  }
+
+
+  static int
+  ft_raccess_sort_ref_by_id( FT_RFork_Ref*  a,
+                             FT_RFork_Ref*  b )
+  {
+    if ( a->res_id < b->res_id )
+      return -1;
+    else if ( a->res_id > b->res_id )
+      return 1;
+    else
+      return 0;
+  }
+
+
+  FT_BASE_DEF( FT_Error )
+  FT_Raccess_Get_DataOffsets( FT_Library  library,
+                              FT_Stream   stream,
+                              FT_Long     map_offset,
+                              FT_Long     rdata_pos,
+                              FT_Long     tag,
+                              FT_Long   **offsets,
+                              FT_Long    *count )
+  {
+    FT_Error      error;
+    int           i, j, cnt, subcnt;
+    FT_Long       tag_internal, rpos;
+    FT_Memory     memory = library->memory;
+    FT_Long       temp;
+    FT_Long       *offsets_internal;
+    FT_RFork_Ref  *ref;
+
+
+    error = FT_Stream_Seek( stream, map_offset );
+    if ( error )
+      return error;
+
+    if ( FT_READ_USHORT( cnt ) )
+      return error;
+    cnt++;
+
+    for ( i = 0; i < cnt; ++i )
+    {
+      if ( FT_READ_LONG( tag_internal ) ||
+           FT_READ_USHORT( subcnt )     ||
+           FT_READ_USHORT( rpos )       )
+        return error;
+
+      FT_TRACE2(( "Resource tags: %c%c%c%c\n",
+                  (char)( 0xff & ( tag_internal >> 24 ) ),
+                  (char)( 0xff & ( tag_internal >> 16 ) ),
+                  (char)( 0xff & ( tag_internal >>  8 ) ),
+                  (char)( 0xff & ( tag_internal >>  0 ) ) ));
+
+      if ( tag_internal == tag )
+      {
+        *count = subcnt + 1;
+        rpos  += map_offset;
+
+        error = FT_Stream_Seek( stream, rpos );
+        if ( error )
+          return error;
+
+        if ( FT_NEW_ARRAY( ref, *count ) )
+          return error;
+
+        for ( j = 0; j < *count; ++j )
+        {
+          if ( FT_READ_USHORT( ref[j].res_id ) )
+            goto Exit;
+          if ( FT_STREAM_SKIP( 2 ) ) /* resource name */
+            goto Exit;
+          if ( FT_READ_LONG( temp ) )
+            goto Exit;
+          if ( FT_STREAM_SKIP( 4 ) ) /* mbz */
+            goto Exit;
+
+          ref[j].offset = temp & 0xFFFFFFL;
+        }
+
+        ft_qsort( ref, *count, sizeof ( FT_RFork_Ref ),
+                  ( int(*)(const void*, const void*) )
+                  ft_raccess_sort_ref_by_id );
+
+        if ( FT_NEW_ARRAY( offsets_internal, *count ) )
+          goto Exit;
+
+        /* XXX: duplicated reference ID,
+         *      gap between reference IDs are acceptable?
+         *      further investigation on Apple implementation is needed.
+         */
+        for ( j = 0; j < *count; ++j )
+          offsets_internal[j] = rdata_pos + ref[j].offset;
+
+        *offsets = offsets_internal;
+        error    = FT_Err_Ok;
+
+      Exit:
+        FT_FREE( ref );
+        return error;
+      }
+    }
+
+    return FT_Err_Cannot_Open_Resource;
+  }
+
+
+#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****                                                                 ****/
+  /****                     Guessing functions                          ****/
+  /****                                                                 ****/
+  /****            When you add a new guessing function,                ****/
+  /****           update FT_RACCESS_N_RULES in ftrfork.h.               ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  typedef FT_Error
+  (*raccess_guess_func)( FT_Library  library,
+                         FT_Stream   stream,
+                         char       *base_file_name,
+                         char      **result_file_name,
+                         FT_Long    *result_offset );
+
+
+  static FT_Error
+  raccess_guess_apple_double( FT_Library  library,
+                              FT_Stream   stream,
+                              char       *base_file_name,
+                              char      **result_file_name,
+                              FT_Long    *result_offset );
+
+  static FT_Error
+  raccess_guess_apple_single( FT_Library  library,
+                              FT_Stream   stream,
+                              char       *base_file_name,
+                              char      **result_file_name,
+                              FT_Long    *result_offset );
+
+  static FT_Error
+  raccess_guess_darwin_ufs_export( FT_Library  library,
+                                   FT_Stream   stream,
+                                   char       *base_file_name,
+                                   char      **result_file_name,
+                                   FT_Long    *result_offset );
+
+  static FT_Error
+  raccess_guess_darwin_newvfs( FT_Library  library,
+                               FT_Stream   stream,
+                               char       *base_file_name,
+                               char      **result_file_name,
+                               FT_Long    *result_offset );
+
+  static FT_Error
+  raccess_guess_darwin_hfsplus( FT_Library  library,
+                                FT_Stream   stream,
+                                char       *base_file_name,
+                                char      **result_file_name,
+                                FT_Long    *result_offset );
+
+  static FT_Error
+  raccess_guess_vfat( FT_Library  library,
+                      FT_Stream   stream,
+                      char       *base_file_name,
+                      char      **result_file_name,
+                      FT_Long    *result_offset );
+
+  static FT_Error
+  raccess_guess_linux_cap( FT_Library  library,
+                           FT_Stream   stream,
+                           char       *base_file_name,
+                           char      **result_file_name,
+                           FT_Long    *result_offset );
+
+  static FT_Error
+  raccess_guess_linux_double( FT_Library  library,
+                              FT_Stream   stream,
+                              char       *base_file_name,
+                              char      **result_file_name,
+                              FT_Long    *result_offset );
+
+  static FT_Error
+  raccess_guess_linux_netatalk( FT_Library  library,
+                                FT_Stream   stream,
+                                char       *base_file_name,
+                                char      **result_file_name,
+                                FT_Long    *result_offset );
+
+
+  /*************************************************************************/
+  /****                                                                 ****/
+  /****                       Helper functions                          ****/
+  /****                                                                 ****/
+  /*************************************************************************/
+
+  static FT_Error
+  raccess_guess_apple_generic( FT_Library  library,
+                               FT_Stream   stream,
+                               char       *base_file_name,
+                               FT_Int32    magic,
+                               FT_Long    *result_offset );
+
+  static FT_Error
+  raccess_guess_linux_double_from_file_name( FT_Library  library,
+                                             char *      file_name,
+                                             FT_Long    *result_offset );
+
+  static char *
+  raccess_make_file_name( FT_Memory    memory,
+                          const char  *original_name,
+                          const char  *insertion );
+
+
+  FT_BASE_DEF( void )
+  FT_Raccess_Guess( FT_Library  library,
+                    FT_Stream   stream,
+                    char*       base_name,
+                    char      **new_names,
+                    FT_Long    *offsets,
+                    FT_Error   *errors )
+  {
+    FT_Long  i;
+
+
+    raccess_guess_func  funcs[FT_RACCESS_N_RULES] =
+    {
+      raccess_guess_apple_double,
+      raccess_guess_apple_single,
+      raccess_guess_darwin_ufs_export,
+      raccess_guess_darwin_newvfs,
+      raccess_guess_darwin_hfsplus,
+      raccess_guess_vfat,
+      raccess_guess_linux_cap,
+      raccess_guess_linux_double,
+      raccess_guess_linux_netatalk,
+    };
+
+    for ( i = 0; i < FT_RACCESS_N_RULES; i++ )
+    {
+      new_names[i] = NULL;
+      if ( NULL != stream )
+        errors[i] = FT_Stream_Seek( stream, 0 );
+      else
+        errors[i] = FT_Err_Ok;
+
+      if ( errors[i] )
+        continue ;
+
+      errors[i] = (funcs[i])( library, stream, base_name,
+                              &(new_names[i]), &(offsets[i]) );
+    }
+
+    return;
+  }
+
+
+  static FT_Error
+  raccess_guess_apple_double( FT_Library  library,
+                              FT_Stream   stream,
+                              char       *base_file_name,
+                              char      **result_file_name,
+                              FT_Long    *result_offset )
+  {
+    FT_Int32  magic = ( 0x00 << 24 | 0x05 << 16 | 0x16 << 8 | 0x07 );
+
+
+    *result_file_name = NULL;
+    if ( NULL == stream )
+      return FT_Err_Cannot_Open_Stream;
+
+    return raccess_guess_apple_generic( library, stream, base_file_name,
+                                        magic, result_offset );
+  }
+
+
+  static FT_Error
+  raccess_guess_apple_single( FT_Library  library,
+                              FT_Stream   stream,
+                              char       *base_file_name,
+                              char      **result_file_name,
+                              FT_Long    *result_offset )
+  {
+    FT_Int32  magic = (0x00 << 24 | 0x05 << 16 | 0x16 << 8 | 0x00);
+
+
+    *result_file_name = NULL;
+    if ( NULL == stream )
+      return FT_Err_Cannot_Open_Stream;
+
+    return raccess_guess_apple_generic( library, stream, base_file_name,
+                                        magic, result_offset );
+  }
+
+
+  static FT_Error
+  raccess_guess_darwin_ufs_export( FT_Library  library,
+                                   FT_Stream   stream,
+                                   char       *base_file_name,
+                                   char      **result_file_name,
+                                   FT_Long    *result_offset )
+  {
+    char*      newpath;
+    FT_Error   error;
+    FT_Memory  memory;
+
+    FT_UNUSED( stream );
+
+
+    memory  = library->memory;
+    newpath = raccess_make_file_name( memory, base_file_name, "._" );
+    if ( !newpath )
+      return FT_Err_Out_Of_Memory;
+
+    error = raccess_guess_linux_double_from_file_name( library, newpath,
+                                                       result_offset );
+    if ( !error )
+      *result_file_name = newpath;
+    else
+      FT_FREE( newpath );
+
+    return error;
+  }
+
+
+  static FT_Error
+  raccess_guess_darwin_hfsplus( FT_Library  library,
+                                FT_Stream   stream,
+                                char       *base_file_name,
+                                char      **result_file_name,
+                                FT_Long    *result_offset )
+  {
+    /*
+      Only meaningful on systems with hfs+ drivers (or Macs).
+     */
+    FT_Error   error;
+    char*      newpath;
+    FT_Memory  memory;
+    FT_Long    base_file_len = ft_strlen( base_file_name );
+
+    FT_UNUSED( stream );
+
+
+    memory = library->memory;
+
+    if ( base_file_len + 6 > FT_INT_MAX )
+      return FT_Err_Array_Too_Large;
+
+    if ( FT_ALLOC( newpath, base_file_len + 6 ) )
+      return error;
+
+    FT_MEM_COPY( newpath, base_file_name, base_file_len );
+    FT_MEM_COPY( newpath + base_file_len, "/rsrc", 6 );
+
+    *result_file_name = newpath;
+    *result_offset    = 0;
+
+    return FT_Err_Ok;
+  }
+
+
+  static FT_Error
+  raccess_guess_darwin_newvfs( FT_Library  library,
+                               FT_Stream   stream,
+                               char       *base_file_name,
+                               char      **result_file_name,
+                               FT_Long    *result_offset )
+  {
+    /*
+      Only meaningful on systems with Mac OS X (> 10.1).
+     */
+    FT_Error   error;
+    char*      newpath;
+    FT_Memory  memory;
+    FT_Long    base_file_len = ft_strlen( base_file_name );
+
+    FT_UNUSED( stream );
+
+
+    memory = library->memory;
+
+    if ( base_file_len + 18 > FT_INT_MAX )
+      return FT_Err_Array_Too_Large;
+
+    if ( FT_ALLOC( newpath, base_file_len + 18 ) )
+      return error;
+
+    FT_MEM_COPY( newpath, base_file_name, base_file_len );
+    FT_MEM_COPY( newpath + base_file_len, "/..namedfork/rsrc", 18 );
+
+    *result_file_name = newpath;
+    *result_offset    = 0;
+
+    return FT_Err_Ok;
+  }
+
+
+  static FT_Error
+  raccess_guess_vfat( FT_Library  library,
+                      FT_Stream   stream,
+                      char       *base_file_name,
+                      char      **result_file_name,
+                      FT_Long    *result_offset )
+  {
+    char*      newpath;
+    FT_Memory  memory;
+
+    FT_UNUSED( stream );
+
+
+    memory = library->memory;
+
+    newpath = raccess_make_file_name( memory, base_file_name,
+                                      "resource.frk/" );
+    if ( !newpath )
+      return FT_Err_Out_Of_Memory;
+
+    *result_file_name = newpath;
+    *result_offset    = 0;
+
+    return FT_Err_Ok;
+  }
+
+
+  static FT_Error
+  raccess_guess_linux_cap( FT_Library  library,
+                           FT_Stream   stream,
+                           char       *base_file_name,
+                           char      **result_file_name,
+                           FT_Long    *result_offset )
+  {
+    char*      newpath;
+    FT_Memory  memory;
+
+    FT_UNUSED( stream );
+
+
+    memory = library->memory;
+
+    newpath = raccess_make_file_name( memory, base_file_name, ".resource/" );
+    if ( !newpath )
+      return FT_Err_Out_Of_Memory;
+
+    *result_file_name = newpath;
+    *result_offset    = 0;
+
+    return FT_Err_Ok;
+  }
+
+
+  static FT_Error
+  raccess_guess_linux_double( FT_Library  library,
+                              FT_Stream   stream,
+                              char       *base_file_name,
+                              char      **result_file_name,
+                              FT_Long    *result_offset )
+  {
+    char*      newpath;
+    FT_Error   error;
+    FT_Memory  memory;
+
+    FT_UNUSED( stream );
+
+
+    memory = library->memory;
+
+    newpath = raccess_make_file_name( memory, base_file_name, "%" );
+    if ( !newpath )
+      return FT_Err_Out_Of_Memory;
+
+    error = raccess_guess_linux_double_from_file_name( library, newpath,
+                                                       result_offset );
+    if ( !error )
+      *result_file_name = newpath;
+    else
+      FT_FREE( newpath );
+
+    return error;
+  }
+
+
+  static FT_Error
+  raccess_guess_linux_netatalk( FT_Library  library,
+                                FT_Stream   stream,
+                                char       *base_file_name,
+                                char      **result_file_name,
+                                FT_Long    *result_offset )
+  {
+    char*      newpath;
+    FT_Error   error;
+    FT_Memory  memory;
+
+    FT_UNUSED( stream );
+
+
+    memory = library->memory;
+
+    newpath = raccess_make_file_name( memory, base_file_name,
+                                      ".AppleDouble/" );
+    if ( !newpath )
+      return FT_Err_Out_Of_Memory;
+
+    error = raccess_guess_linux_double_from_file_name( library, newpath,
+                                                       result_offset );
+    if ( !error )
+      *result_file_name = newpath;
+    else
+      FT_FREE( newpath );
+
+    return error;
+  }
+
+
+  static FT_Error
+  raccess_guess_apple_generic( FT_Library  library,
+                               FT_Stream   stream,
+                               char       *base_file_name,
+                               FT_Int32    magic,
+                               FT_Long    *result_offset )
+  {
+    FT_Int32   magic_from_stream;
+    FT_Error   error;
+    FT_Int32   version_number = 0;
+    FT_UShort  n_of_entries;
+
+    int        i;
+    FT_UInt32  entry_id, entry_offset, entry_length = 0;
+
+    const FT_UInt32  resource_fork_entry_id = 0x2;
+
+    FT_UNUSED( library );
+    FT_UNUSED( base_file_name );
+    FT_UNUSED( version_number );
+    FT_UNUSED( entry_length   );
+
+
+    if ( FT_READ_LONG( magic_from_stream ) )
+      return error;
+    if ( magic_from_stream != magic )
+      return FT_Err_Unknown_File_Format;
+
+    if ( FT_READ_LONG( version_number ) )
+      return error;
+
+    /* filler */
+    error = FT_Stream_Skip( stream, 16 );
+    if ( error )
+      return error;
+
+    if ( FT_READ_USHORT( n_of_entries ) )
+      return error;
+    if ( n_of_entries == 0 )
+      return FT_Err_Unknown_File_Format;
+
+    for ( i = 0; i < n_of_entries; i++ )
+    {
+      if ( FT_READ_LONG( entry_id ) )
+        return error;
+      if ( entry_id == resource_fork_entry_id )
+      {
+        if ( FT_READ_LONG( entry_offset ) ||
+             FT_READ_LONG( entry_length ) )
+          continue;
+        *result_offset = entry_offset;
+
+        return FT_Err_Ok;
+      }
+      else
+        FT_Stream_Skip( stream, 4 + 4 );    /* offset + length */
+      }
+
+    return FT_Err_Unknown_File_Format;
+  }
+
+
+  static FT_Error
+  raccess_guess_linux_double_from_file_name( FT_Library  library,
+                                             char       *file_name,
+                                             FT_Long    *result_offset )
+  {
+    FT_Open_Args  args2;
+    FT_Stream     stream2;
+    char *        nouse = NULL;
+    FT_Error      error;
+
+
+    args2.flags    = FT_OPEN_PATHNAME;
+    args2.pathname = file_name;
+    error = FT_Stream_New( library, &args2, &stream2 );
+    if ( error )
+      return error;
+
+    error = raccess_guess_apple_double( library, stream2, file_name,
+                                        &nouse, result_offset );
+
+    FT_Stream_Free( stream2, 0 );
+
+    return error;
+  }
+
+
+  static char*
+  raccess_make_file_name( FT_Memory    memory,
+                          const char  *original_name,
+                          const char  *insertion )
+  {
+    char*        new_name;
+    char*        tmp;
+    const char*  slash;
+    unsigned     new_length;
+    FT_Error     error = FT_Err_Ok;
+
+    FT_UNUSED( error );
+
+
+    new_length = ft_strlen( original_name ) + ft_strlen( insertion );
+    if ( FT_ALLOC( new_name, new_length + 1 ) )
+      return NULL;
+
+    tmp = ft_strrchr( original_name, '/' );
+    if ( tmp )
+    {
+      ft_strncpy( new_name, original_name, tmp - original_name + 1 );
+      new_name[tmp - original_name + 1] = '\0';
+      slash = tmp + 1;
+    }
+    else
+    {
+      slash       = original_name;
+      new_name[0] = '\0';
+    }
+
+    ft_strcat( new_name, insertion );
+    ft_strcat( new_name, slash );
+
+    return new_name;
+  }
+
+
+#else   /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */
+
+
+  /*************************************************************************/
+  /*                  Dummy function; just sets errors                     */
+  /*************************************************************************/
+
+  FT_BASE_DEF( void )
+  FT_Raccess_Guess( FT_Library  library,
+                    FT_Stream   stream,
+                    char       *base_name,
+                    char      **new_names,
+                    FT_Long    *offsets,
+                    FT_Error   *errors )
+  {
+    int  i;
+
+    FT_UNUSED( library );
+    FT_UNUSED( stream );
+    FT_UNUSED( base_name );
+
+
+    for ( i = 0; i < FT_RACCESS_N_RULES; i++ )
+    {
+      new_names[i] = NULL;
+      offsets[i]   = 0;
+      errors[i]    = FT_Err_Unimplemented_Feature;
+    }
+  }
+
+
+#endif  /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */
+
+
+/* END */