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5172
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/***************************************************************************/
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/* */
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/* ftrfork.c */
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/* */
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/* Embedded resource forks accessor (body). */
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/* */
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/* Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010 by */
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/* Masatake YAMATO and Redhat K.K. */
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/* */
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/* FT_Raccess_Get_HeaderInfo() and raccess_guess_darwin_hfsplus() are */
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/* derived from ftobjs.c. */
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/* */
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/* This file is part of the FreeType project, and may only be used, */
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/* modified, and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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/***************************************************************************/
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/* Development of the code in this file is support of */
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/* Information-technology Promotion Agency, Japan. */
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/***************************************************************************/
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#include <ft2build.h>
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#include FT_INTERNAL_DEBUG_H
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#include FT_INTERNAL_STREAM_H
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#include FT_INTERNAL_RFORK_H
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31 |
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32 |
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#undef FT_COMPONENT
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#define FT_COMPONENT trace_raccess
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36 |
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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/**** ****/
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/**** ****/
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42 |
/**** Resource fork directory access ****/
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/**** ****/
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/**** ****/
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/*************************************************************************/
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/*************************************************************************/
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/*************************************************************************/
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48 |
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FT_BASE_DEF( FT_Error )
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FT_Raccess_Get_HeaderInfo( FT_Library library,
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FT_Stream stream,
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FT_Long rfork_offset,
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FT_Long *map_offset,
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FT_Long *rdata_pos )
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{
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FT_Error error;
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unsigned char head[16], head2[16];
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FT_Long map_pos, rdata_len;
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int allzeros, allmatch, i;
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FT_Long type_list;
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61 |
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FT_UNUSED( library );
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63 |
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error = FT_Stream_Seek( stream, rfork_offset );
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if ( error )
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return error;
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68 |
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error = FT_Stream_Read( stream, (FT_Byte *)head, 16 );
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if ( error )
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return error;
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72 |
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*rdata_pos = rfork_offset + ( ( head[0] << 24 ) |
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( head[1] << 16 ) |
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( head[2] << 8 ) |
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head[3] );
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map_pos = rfork_offset + ( ( head[4] << 24 ) |
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( head[5] << 16 ) |
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( head[6] << 8 ) |
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head[7] );
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rdata_len = ( head[ 8] << 24 ) |
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( head[ 9] << 16 ) |
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( head[10] << 8 ) |
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head[11];
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85 |
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/* map_len = head[12] .. head[15] */
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87 |
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if ( *rdata_pos + rdata_len != map_pos || map_pos == rfork_offset )
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return FT_Err_Unknown_File_Format;
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90 |
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error = FT_Stream_Seek( stream, map_pos );
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if ( error )
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return error;
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94 |
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head2[15] = (FT_Byte)( head[15] + 1 ); /* make it be different */
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96 |
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error = FT_Stream_Read( stream, (FT_Byte*)head2, 16 );
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if ( error )
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return error;
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100 |
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allzeros = 1;
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allmatch = 1;
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for ( i = 0; i < 16; ++i )
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{
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105 |
if ( head2[i] != 0 )
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allzeros = 0;
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if ( head2[i] != head[i] )
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allmatch = 0;
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}
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110 |
if ( !allzeros && !allmatch )
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return FT_Err_Unknown_File_Format;
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112 |
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/* If we have reached this point then it is probably a mac resource */
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/* file. Now, does it contain any interesting resources? */
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/* Skip handle to next resource map, the file resource number, and */
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/* attributes. */
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(void)FT_STREAM_SKIP( 4 /* skip handle to next resource map */
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+ 2 /* skip file resource number */
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+ 2 ); /* skip attributes */
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120 |
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if ( FT_READ_USHORT( type_list ) )
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return error;
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if ( type_list == -1 )
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return FT_Err_Unknown_File_Format;
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125 |
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126 |
error = FT_Stream_Seek( stream, map_pos + type_list );
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127 |
if ( error )
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128 |
return error;
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129 |
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*map_offset = map_pos + type_list;
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return FT_Err_Ok;
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132 |
}
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133 |
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134 |
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135 |
static int
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ft_raccess_sort_ref_by_id( FT_RFork_Ref* a,
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137 |
FT_RFork_Ref* b )
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{
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139 |
if ( a->res_id < b->res_id )
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140 |
return -1;
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else if ( a->res_id > b->res_id )
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return 1;
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else
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return 0;
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}
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146 |
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147 |
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148 |
FT_BASE_DEF( FT_Error )
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149 |
FT_Raccess_Get_DataOffsets( FT_Library library,
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150 |
FT_Stream stream,
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151 |
FT_Long map_offset,
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152 |
FT_Long rdata_pos,
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153 |
FT_Long tag,
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154 |
FT_Long **offsets,
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155 |
FT_Long *count )
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156 |
{
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157 |
FT_Error error;
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158 |
int i, j, cnt, subcnt;
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159 |
FT_Long tag_internal, rpos;
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160 |
FT_Memory memory = library->memory;
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161 |
FT_Long temp;
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162 |
FT_Long *offsets_internal;
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163 |
FT_RFork_Ref *ref;
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164 |
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165 |
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166 |
error = FT_Stream_Seek( stream, map_offset );
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167 |
if ( error )
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168 |
return error;
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169 |
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170 |
if ( FT_READ_USHORT( cnt ) )
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171 |
return error;
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cnt++;
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173 |
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174 |
for ( i = 0; i < cnt; ++i )
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175 |
{
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176 |
if ( FT_READ_LONG( tag_internal ) ||
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177 |
FT_READ_USHORT( subcnt ) ||
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178 |
FT_READ_USHORT( rpos ) )
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179 |
return error;
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180 |
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181 |
FT_TRACE2(( "Resource tags: %c%c%c%c\n",
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182 |
(char)( 0xff & ( tag_internal >> 24 ) ),
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(char)( 0xff & ( tag_internal >> 16 ) ),
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(char)( 0xff & ( tag_internal >> 8 ) ),
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(char)( 0xff & ( tag_internal >> 0 ) ) ));
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186 |
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187 |
if ( tag_internal == tag )
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{
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*count = subcnt + 1;
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rpos += map_offset;
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191 |
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error = FT_Stream_Seek( stream, rpos );
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if ( error )
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return error;
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195 |
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if ( FT_NEW_ARRAY( ref, *count ) )
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return error;
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198 |
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for ( j = 0; j < *count; ++j )
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{
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if ( FT_READ_USHORT( ref[j].res_id ) )
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202 |
goto Exit;
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203 |
if ( FT_STREAM_SKIP( 2 ) ) /* resource name */
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204 |
goto Exit;
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205 |
if ( FT_READ_LONG( temp ) )
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206 |
goto Exit;
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207 |
if ( FT_STREAM_SKIP( 4 ) ) /* mbz */
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208 |
goto Exit;
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209 |
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210 |
ref[j].offset = temp & 0xFFFFFFL;
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211 |
}
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212 |
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ft_qsort( ref, *count, sizeof ( FT_RFork_Ref ),
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214 |
( int(*)(const void*, const void*) )
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215 |
ft_raccess_sort_ref_by_id );
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216 |
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217 |
if ( FT_NEW_ARRAY( offsets_internal, *count ) )
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218 |
goto Exit;
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219 |
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220 |
/* XXX: duplicated reference ID,
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* gap between reference IDs are acceptable?
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* further investigation on Apple implementation is needed.
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*/
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224 |
for ( j = 0; j < *count; ++j )
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offsets_internal[j] = rdata_pos + ref[j].offset;
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226 |
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227 |
*offsets = offsets_internal;
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228 |
error = FT_Err_Ok;
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229 |
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230 |
Exit:
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231 |
FT_FREE( ref );
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return error;
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233 |
}
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234 |
}
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235 |
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236 |
return FT_Err_Cannot_Open_Resource;
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}
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238 |
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239 |
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240 |
#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
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241 |
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242 |
/*************************************************************************/
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243 |
/*************************************************************************/
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244 |
/*************************************************************************/
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245 |
/**** ****/
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246 |
/**** ****/
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247 |
/**** Guessing functions ****/
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248 |
/**** ****/
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249 |
/**** When you add a new guessing function, ****/
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250 |
/**** update FT_RACCESS_N_RULES in ftrfork.h. ****/
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251 |
/**** ****/
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252 |
/*************************************************************************/
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253 |
/*************************************************************************/
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254 |
/*************************************************************************/
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255 |
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256 |
typedef FT_Error
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257 |
(*raccess_guess_func)( FT_Library library,
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258 |
FT_Stream stream,
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259 |
char *base_file_name,
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260 |
char **result_file_name,
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261 |
FT_Long *result_offset );
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262 |
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263 |
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264 |
static FT_Error
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265 |
raccess_guess_apple_double( FT_Library library,
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266 |
FT_Stream stream,
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267 |
char *base_file_name,
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268 |
char **result_file_name,
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269 |
FT_Long *result_offset );
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270 |
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271 |
static FT_Error
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272 |
raccess_guess_apple_single( FT_Library library,
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273 |
FT_Stream stream,
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274 |
char *base_file_name,
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275 |
char **result_file_name,
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276 |
FT_Long *result_offset );
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277 |
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278 |
static FT_Error
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279 |
raccess_guess_darwin_ufs_export( FT_Library library,
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280 |
FT_Stream stream,
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281 |
char *base_file_name,
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282 |
char **result_file_name,
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283 |
FT_Long *result_offset );
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284 |
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285 |
static FT_Error
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286 |
raccess_guess_darwin_newvfs( FT_Library library,
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287 |
FT_Stream stream,
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288 |
char *base_file_name,
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289 |
char **result_file_name,
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290 |
FT_Long *result_offset );
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291 |
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292 |
static FT_Error
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293 |
raccess_guess_darwin_hfsplus( FT_Library library,
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294 |
FT_Stream stream,
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295 |
char *base_file_name,
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296 |
char **result_file_name,
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297 |
FT_Long *result_offset );
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298 |
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299 |
static FT_Error
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300 |
raccess_guess_vfat( FT_Library library,
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301 |
FT_Stream stream,
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302 |
char *base_file_name,
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303 |
char **result_file_name,
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304 |
FT_Long *result_offset );
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305 |
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306 |
static FT_Error
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307 |
raccess_guess_linux_cap( FT_Library library,
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308 |
FT_Stream stream,
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309 |
char *base_file_name,
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310 |
char **result_file_name,
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311 |
FT_Long *result_offset );
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312 |
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313 |
static FT_Error
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314 |
raccess_guess_linux_double( FT_Library library,
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315 |
FT_Stream stream,
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316 |
char *base_file_name,
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317 |
char **result_file_name,
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318 |
FT_Long *result_offset );
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319 |
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320 |
static FT_Error
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321 |
raccess_guess_linux_netatalk( FT_Library library,
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322 |
FT_Stream stream,
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323 |
char *base_file_name,
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324 |
char **result_file_name,
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325 |
FT_Long *result_offset );
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326 |
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327 |
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328 |
/*************************************************************************/
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329 |
/**** ****/
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330 |
/**** Helper functions ****/
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331 |
/**** ****/
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332 |
/*************************************************************************/
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333 |
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334 |
static FT_Error
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335 |
raccess_guess_apple_generic( FT_Library library,
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336 |
FT_Stream stream,
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337 |
char *base_file_name,
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338 |
FT_Int32 magic,
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339 |
FT_Long *result_offset );
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340 |
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341 |
static FT_Error
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342 |
raccess_guess_linux_double_from_file_name( FT_Library library,
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343 |
char * file_name,
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344 |
FT_Long *result_offset );
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345 |
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346 |
static char *
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347 |
raccess_make_file_name( FT_Memory memory,
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348 |
const char *original_name,
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349 |
const char *insertion );
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350 |
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351 |
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352 |
typedef enum FT_RFork_Rule_ {
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353 |
FT_RFork_Rule_invalid = -2,
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354 |
FT_RFork_Rule_uknown, /* -1 */
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355 |
FT_RFork_Rule_apple_double,
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356 |
FT_RFork_Rule_apple_single,
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357 |
FT_RFork_Rule_darwin_ufs_export,
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358 |
FT_RFork_Rule_darwin_newvfs,
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359 |
FT_RFork_Rule_darwin_hfsplus,
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360 |
FT_RFork_Rule_vfat,
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361 |
FT_RFork_Rule_linux_cap,
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362 |
FT_RFork_Rule_linux_double,
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363 |
FT_RFork_Rule_linux_netatalk
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364 |
} FT_RFork_Rule;
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|
365 |
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|
366 |
/* For fast translation between rule index and rule type,
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|
367 |
* the macros FT_RFORK_xxx should be kept consistent with
|
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|
368 |
* the raccess_guess_funcs table
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|
369 |
*/
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|
370 |
typedef struct raccess_guess_rec_ {
|
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|
371 |
raccess_guess_func func;
|
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|
372 |
FT_RFork_Rule type;
|
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|
373 |
} raccess_guess_rec;
|
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|
374 |
|
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|
375 |
static raccess_guess_rec raccess_guess_table[FT_RACCESS_N_RULES] =
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|
376 |
{
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|
377 |
{ raccess_guess_apple_double, FT_RFork_Rule_apple_double, },
|
|
|
378 |
{ raccess_guess_apple_single, FT_RFork_Rule_apple_single, },
|
|
|
379 |
{ raccess_guess_darwin_ufs_export, FT_RFork_Rule_darwin_ufs_export, },
|
|
|
380 |
{ raccess_guess_darwin_newvfs, FT_RFork_Rule_darwin_newvfs, },
|
|
|
381 |
{ raccess_guess_darwin_hfsplus, FT_RFork_Rule_darwin_hfsplus, },
|
|
|
382 |
{ raccess_guess_vfat, FT_RFork_Rule_vfat, },
|
|
|
383 |
{ raccess_guess_linux_cap, FT_RFork_Rule_linux_cap, },
|
|
|
384 |
{ raccess_guess_linux_double, FT_RFork_Rule_linux_double, },
|
|
|
385 |
{ raccess_guess_linux_netatalk, FT_RFork_Rule_linux_netatalk, },
|
|
|
386 |
};
|
|
|
387 |
|
|
|
388 |
FT_BASE_DEF( void )
|
|
|
389 |
FT_Raccess_Guess( FT_Library library,
|
|
|
390 |
FT_Stream stream,
|
|
|
391 |
char* base_name,
|
|
|
392 |
char **new_names,
|
|
|
393 |
FT_Long *offsets,
|
|
|
394 |
FT_Error *errors )
|
|
|
395 |
{
|
|
|
396 |
FT_Long i;
|
|
|
397 |
|
|
|
398 |
|
|
|
399 |
for ( i = 0; i < FT_RACCESS_N_RULES; i++ )
|
|
|
400 |
{
|
|
|
401 |
new_names[i] = NULL;
|
|
|
402 |
if ( NULL != stream )
|
|
|
403 |
errors[i] = FT_Stream_Seek( stream, 0 );
|
|
|
404 |
else
|
|
|
405 |
errors[i] = FT_Err_Ok;
|
|
|
406 |
|
|
|
407 |
if ( errors[i] )
|
|
|
408 |
continue ;
|
|
|
409 |
|
|
|
410 |
errors[i] = (raccess_guess_table[i].func)( library,
|
|
|
411 |
stream, base_name,
|
|
|
412 |
&(new_names[i]),
|
|
|
413 |
&(offsets[i]) );
|
|
|
414 |
}
|
|
|
415 |
|
|
|
416 |
return;
|
|
|
417 |
}
|
|
|
418 |
|
|
|
419 |
|
|
|
420 |
static FT_RFork_Rule
|
|
|
421 |
raccess_get_rule_type_from_rule_index( FT_UInt rule_index )
|
|
|
422 |
{
|
|
|
423 |
if ( rule_index >= FT_RACCESS_N_RULES )
|
|
|
424 |
return FT_RFork_Rule_invalid;
|
|
|
425 |
|
|
|
426 |
return raccess_guess_table[rule_index].type;
|
|
|
427 |
}
|
|
|
428 |
|
|
|
429 |
|
|
|
430 |
FT_LOCAL_DEF( FT_Bool )
|
|
|
431 |
raccess_rule_by_darwin_vfs( FT_UInt rule_index )
|
|
|
432 |
{
|
|
|
433 |
switch( raccess_get_rule_type_from_rule_index( rule_index ) )
|
|
|
434 |
{
|
|
|
435 |
case FT_RFork_Rule_darwin_newvfs:
|
|
|
436 |
case FT_RFork_Rule_darwin_hfsplus:
|
|
|
437 |
return TRUE;
|
|
|
438 |
|
|
|
439 |
default:
|
|
|
440 |
return FALSE;
|
|
|
441 |
}
|
|
|
442 |
}
|
|
|
443 |
|
|
|
444 |
|
|
|
445 |
static FT_Error
|
|
|
446 |
raccess_guess_apple_double( FT_Library library,
|
|
|
447 |
FT_Stream stream,
|
|
|
448 |
char *base_file_name,
|
|
|
449 |
char **result_file_name,
|
|
|
450 |
FT_Long *result_offset )
|
|
|
451 |
{
|
|
|
452 |
FT_Int32 magic = ( 0x00 << 24 ) |
|
|
|
453 |
( 0x05 << 16 ) |
|
|
|
454 |
( 0x16 << 8 ) |
|
|
|
455 |
0x07;
|
|
|
456 |
|
|
|
457 |
|
|
|
458 |
*result_file_name = NULL;
|
|
|
459 |
if ( NULL == stream )
|
|
|
460 |
return FT_Err_Cannot_Open_Stream;
|
|
|
461 |
|
|
|
462 |
return raccess_guess_apple_generic( library, stream, base_file_name,
|
|
|
463 |
magic, result_offset );
|
|
|
464 |
}
|
|
|
465 |
|
|
|
466 |
|
|
|
467 |
static FT_Error
|
|
|
468 |
raccess_guess_apple_single( FT_Library library,
|
|
|
469 |
FT_Stream stream,
|
|
|
470 |
char *base_file_name,
|
|
|
471 |
char **result_file_name,
|
|
|
472 |
FT_Long *result_offset )
|
|
|
473 |
{
|
|
|
474 |
FT_Int32 magic = ( 0x00 << 24 ) |
|
|
|
475 |
( 0x05 << 16 ) |
|
|
|
476 |
( 0x16 << 8 ) |
|
|
|
477 |
0x00;
|
|
|
478 |
|
|
|
479 |
|
|
|
480 |
*result_file_name = NULL;
|
|
|
481 |
if ( NULL == stream )
|
|
|
482 |
return FT_Err_Cannot_Open_Stream;
|
|
|
483 |
|
|
|
484 |
return raccess_guess_apple_generic( library, stream, base_file_name,
|
|
|
485 |
magic, result_offset );
|
|
|
486 |
}
|
|
|
487 |
|
|
|
488 |
|
|
|
489 |
static FT_Error
|
|
|
490 |
raccess_guess_darwin_ufs_export( FT_Library library,
|
|
|
491 |
FT_Stream stream,
|
|
|
492 |
char *base_file_name,
|
|
|
493 |
char **result_file_name,
|
|
|
494 |
FT_Long *result_offset )
|
|
|
495 |
{
|
|
|
496 |
char* newpath;
|
|
|
497 |
FT_Error error;
|
|
|
498 |
FT_Memory memory;
|
|
|
499 |
|
|
|
500 |
FT_UNUSED( stream );
|
|
|
501 |
|
|
|
502 |
|
|
|
503 |
memory = library->memory;
|
|
|
504 |
newpath = raccess_make_file_name( memory, base_file_name, "._" );
|
|
|
505 |
if ( !newpath )
|
|
|
506 |
return FT_Err_Out_Of_Memory;
|
|
|
507 |
|
|
|
508 |
error = raccess_guess_linux_double_from_file_name( library, newpath,
|
|
|
509 |
result_offset );
|
|
|
510 |
if ( !error )
|
|
|
511 |
*result_file_name = newpath;
|
|
|
512 |
else
|
|
|
513 |
FT_FREE( newpath );
|
|
|
514 |
|
|
|
515 |
return error;
|
|
|
516 |
}
|
|
|
517 |
|
|
|
518 |
|
|
|
519 |
static FT_Error
|
|
|
520 |
raccess_guess_darwin_hfsplus( FT_Library library,
|
|
|
521 |
FT_Stream stream,
|
|
|
522 |
char *base_file_name,
|
|
|
523 |
char **result_file_name,
|
|
|
524 |
FT_Long *result_offset )
|
|
|
525 |
{
|
|
|
526 |
/*
|
|
|
527 |
Only meaningful on systems with hfs+ drivers (or Macs).
|
|
|
528 |
*/
|
|
|
529 |
FT_Error error;
|
|
|
530 |
char* newpath;
|
|
|
531 |
FT_Memory memory;
|
|
|
532 |
FT_Long base_file_len = ft_strlen( base_file_name );
|
|
|
533 |
|
|
|
534 |
FT_UNUSED( stream );
|
|
|
535 |
|
|
|
536 |
|
|
|
537 |
memory = library->memory;
|
|
|
538 |
|
|
|
539 |
if ( base_file_len + 6 > FT_INT_MAX )
|
|
|
540 |
return FT_Err_Array_Too_Large;
|
|
|
541 |
|
|
|
542 |
if ( FT_ALLOC( newpath, base_file_len + 6 ) )
|
|
|
543 |
return error;
|
|
|
544 |
|
|
|
545 |
FT_MEM_COPY( newpath, base_file_name, base_file_len );
|
|
|
546 |
FT_MEM_COPY( newpath + base_file_len, "/rsrc", 6 );
|
|
|
547 |
|
|
|
548 |
*result_file_name = newpath;
|
|
|
549 |
*result_offset = 0;
|
|
|
550 |
|
|
|
551 |
return FT_Err_Ok;
|
|
|
552 |
}
|
|
|
553 |
|
|
|
554 |
|
|
|
555 |
static FT_Error
|
|
|
556 |
raccess_guess_darwin_newvfs( FT_Library library,
|
|
|
557 |
FT_Stream stream,
|
|
|
558 |
char *base_file_name,
|
|
|
559 |
char **result_file_name,
|
|
|
560 |
FT_Long *result_offset )
|
|
|
561 |
{
|
|
|
562 |
/*
|
|
|
563 |
Only meaningful on systems with Mac OS X (> 10.1).
|
|
|
564 |
*/
|
|
|
565 |
FT_Error error;
|
|
|
566 |
char* newpath;
|
|
|
567 |
FT_Memory memory;
|
|
|
568 |
FT_Long base_file_len = ft_strlen( base_file_name );
|
|
|
569 |
|
|
|
570 |
FT_UNUSED( stream );
|
|
|
571 |
|
|
|
572 |
|
|
|
573 |
memory = library->memory;
|
|
|
574 |
|
|
|
575 |
if ( base_file_len + 18 > FT_INT_MAX )
|
|
|
576 |
return FT_Err_Array_Too_Large;
|
|
|
577 |
|
|
|
578 |
if ( FT_ALLOC( newpath, base_file_len + 18 ) )
|
|
|
579 |
return error;
|
|
|
580 |
|
|
|
581 |
FT_MEM_COPY( newpath, base_file_name, base_file_len );
|
|
|
582 |
FT_MEM_COPY( newpath + base_file_len, "/..namedfork/rsrc", 18 );
|
|
|
583 |
|
|
|
584 |
*result_file_name = newpath;
|
|
|
585 |
*result_offset = 0;
|
|
|
586 |
|
|
|
587 |
return FT_Err_Ok;
|
|
|
588 |
}
|
|
|
589 |
|
|
|
590 |
|
|
|
591 |
static FT_Error
|
|
|
592 |
raccess_guess_vfat( FT_Library library,
|
|
|
593 |
FT_Stream stream,
|
|
|
594 |
char *base_file_name,
|
|
|
595 |
char **result_file_name,
|
|
|
596 |
FT_Long *result_offset )
|
|
|
597 |
{
|
|
|
598 |
char* newpath;
|
|
|
599 |
FT_Memory memory;
|
|
|
600 |
|
|
|
601 |
FT_UNUSED( stream );
|
|
|
602 |
|
|
|
603 |
|
|
|
604 |
memory = library->memory;
|
|
|
605 |
|
|
|
606 |
newpath = raccess_make_file_name( memory, base_file_name,
|
|
|
607 |
"resource.frk/" );
|
|
|
608 |
if ( !newpath )
|
|
|
609 |
return FT_Err_Out_Of_Memory;
|
|
|
610 |
|
|
|
611 |
*result_file_name = newpath;
|
|
|
612 |
*result_offset = 0;
|
|
|
613 |
|
|
|
614 |
return FT_Err_Ok;
|
|
|
615 |
}
|
|
|
616 |
|
|
|
617 |
|
|
|
618 |
static FT_Error
|
|
|
619 |
raccess_guess_linux_cap( FT_Library library,
|
|
|
620 |
FT_Stream stream,
|
|
|
621 |
char *base_file_name,
|
|
|
622 |
char **result_file_name,
|
|
|
623 |
FT_Long *result_offset )
|
|
|
624 |
{
|
|
|
625 |
char* newpath;
|
|
|
626 |
FT_Memory memory;
|
|
|
627 |
|
|
|
628 |
FT_UNUSED( stream );
|
|
|
629 |
|
|
|
630 |
|
|
|
631 |
memory = library->memory;
|
|
|
632 |
|
|
|
633 |
newpath = raccess_make_file_name( memory, base_file_name, ".resource/" );
|
|
|
634 |
if ( !newpath )
|
|
|
635 |
return FT_Err_Out_Of_Memory;
|
|
|
636 |
|
|
|
637 |
*result_file_name = newpath;
|
|
|
638 |
*result_offset = 0;
|
|
|
639 |
|
|
|
640 |
return FT_Err_Ok;
|
|
|
641 |
}
|
|
|
642 |
|
|
|
643 |
|
|
|
644 |
static FT_Error
|
|
|
645 |
raccess_guess_linux_double( FT_Library library,
|
|
|
646 |
FT_Stream stream,
|
|
|
647 |
char *base_file_name,
|
|
|
648 |
char **result_file_name,
|
|
|
649 |
FT_Long *result_offset )
|
|
|
650 |
{
|
|
|
651 |
char* newpath;
|
|
|
652 |
FT_Error error;
|
|
|
653 |
FT_Memory memory;
|
|
|
654 |
|
|
|
655 |
FT_UNUSED( stream );
|
|
|
656 |
|
|
|
657 |
|
|
|
658 |
memory = library->memory;
|
|
|
659 |
|
|
|
660 |
newpath = raccess_make_file_name( memory, base_file_name, "%" );
|
|
|
661 |
if ( !newpath )
|
|
|
662 |
return FT_Err_Out_Of_Memory;
|
|
|
663 |
|
|
|
664 |
error = raccess_guess_linux_double_from_file_name( library, newpath,
|
|
|
665 |
result_offset );
|
|
|
666 |
if ( !error )
|
|
|
667 |
*result_file_name = newpath;
|
|
|
668 |
else
|
|
|
669 |
FT_FREE( newpath );
|
|
|
670 |
|
|
|
671 |
return error;
|
|
|
672 |
}
|
|
|
673 |
|
|
|
674 |
|
|
|
675 |
static FT_Error
|
|
|
676 |
raccess_guess_linux_netatalk( FT_Library library,
|
|
|
677 |
FT_Stream stream,
|
|
|
678 |
char *base_file_name,
|
|
|
679 |
char **result_file_name,
|
|
|
680 |
FT_Long *result_offset )
|
|
|
681 |
{
|
|
|
682 |
char* newpath;
|
|
|
683 |
FT_Error error;
|
|
|
684 |
FT_Memory memory;
|
|
|
685 |
|
|
|
686 |
FT_UNUSED( stream );
|
|
|
687 |
|
|
|
688 |
|
|
|
689 |
memory = library->memory;
|
|
|
690 |
|
|
|
691 |
newpath = raccess_make_file_name( memory, base_file_name,
|
|
|
692 |
".AppleDouble/" );
|
|
|
693 |
if ( !newpath )
|
|
|
694 |
return FT_Err_Out_Of_Memory;
|
|
|
695 |
|
|
|
696 |
error = raccess_guess_linux_double_from_file_name( library, newpath,
|
|
|
697 |
result_offset );
|
|
|
698 |
if ( !error )
|
|
|
699 |
*result_file_name = newpath;
|
|
|
700 |
else
|
|
|
701 |
FT_FREE( newpath );
|
|
|
702 |
|
|
|
703 |
return error;
|
|
|
704 |
}
|
|
|
705 |
|
|
|
706 |
|
|
|
707 |
static FT_Error
|
|
|
708 |
raccess_guess_apple_generic( FT_Library library,
|
|
|
709 |
FT_Stream stream,
|
|
|
710 |
char *base_file_name,
|
|
|
711 |
FT_Int32 magic,
|
|
|
712 |
FT_Long *result_offset )
|
|
|
713 |
{
|
|
|
714 |
FT_Int32 magic_from_stream;
|
|
|
715 |
FT_Error error;
|
|
|
716 |
FT_Int32 version_number = 0;
|
|
|
717 |
FT_UShort n_of_entries;
|
|
|
718 |
|
|
|
719 |
int i;
|
|
|
720 |
FT_UInt32 entry_id, entry_offset, entry_length = 0;
|
|
|
721 |
|
|
|
722 |
const FT_UInt32 resource_fork_entry_id = 0x2;
|
|
|
723 |
|
|
|
724 |
FT_UNUSED( library );
|
|
|
725 |
FT_UNUSED( base_file_name );
|
|
|
726 |
FT_UNUSED( version_number );
|
|
|
727 |
FT_UNUSED( entry_length );
|
|
|
728 |
|
|
|
729 |
|
|
|
730 |
if ( FT_READ_LONG( magic_from_stream ) )
|
|
|
731 |
return error;
|
|
|
732 |
if ( magic_from_stream != magic )
|
|
|
733 |
return FT_Err_Unknown_File_Format;
|
|
|
734 |
|
|
|
735 |
if ( FT_READ_LONG( version_number ) )
|
|
|
736 |
return error;
|
|
|
737 |
|
|
|
738 |
/* filler */
|
|
|
739 |
error = FT_Stream_Skip( stream, 16 );
|
|
|
740 |
if ( error )
|
|
|
741 |
return error;
|
|
|
742 |
|
|
|
743 |
if ( FT_READ_USHORT( n_of_entries ) )
|
|
|
744 |
return error;
|
|
|
745 |
if ( n_of_entries == 0 )
|
|
|
746 |
return FT_Err_Unknown_File_Format;
|
|
|
747 |
|
|
|
748 |
for ( i = 0; i < n_of_entries; i++ )
|
|
|
749 |
{
|
|
|
750 |
if ( FT_READ_LONG( entry_id ) )
|
|
|
751 |
return error;
|
|
|
752 |
if ( entry_id == resource_fork_entry_id )
|
|
|
753 |
{
|
|
|
754 |
if ( FT_READ_LONG( entry_offset ) ||
|
|
|
755 |
FT_READ_LONG( entry_length ) )
|
|
|
756 |
continue;
|
|
|
757 |
*result_offset = entry_offset;
|
|
|
758 |
|
|
|
759 |
return FT_Err_Ok;
|
|
|
760 |
}
|
|
|
761 |
else
|
|
|
762 |
{
|
|
|
763 |
error = FT_Stream_Skip( stream, 4 + 4 ); /* offset + length */
|
|
|
764 |
if ( error )
|
|
|
765 |
return error;
|
|
|
766 |
}
|
|
|
767 |
}
|
|
|
768 |
|
|
|
769 |
return FT_Err_Unknown_File_Format;
|
|
|
770 |
}
|
|
|
771 |
|
|
|
772 |
|
|
|
773 |
static FT_Error
|
|
|
774 |
raccess_guess_linux_double_from_file_name( FT_Library library,
|
|
|
775 |
char *file_name,
|
|
|
776 |
FT_Long *result_offset )
|
|
|
777 |
{
|
|
|
778 |
FT_Open_Args args2;
|
|
|
779 |
FT_Stream stream2;
|
|
|
780 |
char * nouse = NULL;
|
|
|
781 |
FT_Error error;
|
|
|
782 |
|
|
|
783 |
|
|
|
784 |
args2.flags = FT_OPEN_PATHNAME;
|
|
|
785 |
args2.pathname = file_name;
|
|
|
786 |
error = FT_Stream_New( library, &args2, &stream2 );
|
|
|
787 |
if ( error )
|
|
|
788 |
return error;
|
|
|
789 |
|
|
|
790 |
error = raccess_guess_apple_double( library, stream2, file_name,
|
|
|
791 |
&nouse, result_offset );
|
|
|
792 |
|
|
|
793 |
FT_Stream_Free( stream2, 0 );
|
|
|
794 |
|
|
|
795 |
return error;
|
|
|
796 |
}
|
|
|
797 |
|
|
|
798 |
|
|
|
799 |
static char*
|
|
|
800 |
raccess_make_file_name( FT_Memory memory,
|
|
|
801 |
const char *original_name,
|
|
|
802 |
const char *insertion )
|
|
|
803 |
{
|
|
|
804 |
char* new_name = NULL;
|
|
|
805 |
const char* tmp;
|
|
|
806 |
const char* slash;
|
|
|
807 |
size_t new_length;
|
|
|
808 |
FT_Error error = FT_Err_Ok;
|
|
|
809 |
|
|
|
810 |
FT_UNUSED( error );
|
|
|
811 |
|
|
|
812 |
|
|
|
813 |
new_length = ft_strlen( original_name ) + ft_strlen( insertion );
|
|
|
814 |
if ( FT_ALLOC( new_name, new_length + 1 ) )
|
|
|
815 |
return NULL;
|
|
|
816 |
|
|
|
817 |
tmp = ft_strrchr( original_name, '/' );
|
|
|
818 |
if ( tmp )
|
|
|
819 |
{
|
|
|
820 |
ft_strncpy( new_name, original_name, tmp - original_name + 1 );
|
|
|
821 |
new_name[tmp - original_name + 1] = '\0';
|
|
|
822 |
slash = tmp + 1;
|
|
|
823 |
}
|
|
|
824 |
else
|
|
|
825 |
{
|
|
|
826 |
slash = original_name;
|
|
|
827 |
new_name[0] = '\0';
|
|
|
828 |
}
|
|
|
829 |
|
|
|
830 |
ft_strcat( new_name, insertion );
|
|
|
831 |
ft_strcat( new_name, slash );
|
|
|
832 |
|
|
|
833 |
return new_name;
|
|
|
834 |
}
|
|
|
835 |
|
|
|
836 |
|
|
|
837 |
#else /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */
|
|
|
838 |
|
|
|
839 |
|
|
|
840 |
/*************************************************************************/
|
|
|
841 |
/* Dummy function; just sets errors */
|
|
|
842 |
/*************************************************************************/
|
|
|
843 |
|
|
|
844 |
FT_BASE_DEF( void )
|
|
|
845 |
FT_Raccess_Guess( FT_Library library,
|
|
|
846 |
FT_Stream stream,
|
|
|
847 |
char *base_name,
|
|
|
848 |
char **new_names,
|
|
|
849 |
FT_Long *offsets,
|
|
|
850 |
FT_Error *errors )
|
|
|
851 |
{
|
|
|
852 |
int i;
|
|
|
853 |
|
|
|
854 |
FT_UNUSED( library );
|
|
|
855 |
FT_UNUSED( stream );
|
|
|
856 |
FT_UNUSED( base_name );
|
|
|
857 |
|
|
|
858 |
|
|
|
859 |
for ( i = 0; i < FT_RACCESS_N_RULES; i++ )
|
|
|
860 |
{
|
|
|
861 |
new_names[i] = NULL;
|
|
|
862 |
offsets[i] = 0;
|
|
|
863 |
errors[i] = FT_Err_Unimplemented_Feature;
|
|
|
864 |
}
|
|
|
865 |
}
|
|
|
866 |
|
|
|
867 |
|
|
|
868 |
#endif /* !FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */
|
|
|
869 |
|
|
|
870 |
|
|
|
871 |
/* END */
|