diff options
Diffstat (limited to 'src/base/ftrfork.c')
| -rw-r--r-- | src/base/ftrfork.c | 811 |
1 files changed, 0 insertions, 811 deletions
diff --git a/src/base/ftrfork.c b/src/base/ftrfork.c deleted file mode 100644 index 5a835ee..0000000 --- a/src/base/ftrfork.c +++ /dev/null @@ -1,811 +0,0 @@ -/***************************************************************************/ -/* */ -/* 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 */ |