diff options
Diffstat (limited to 'src/3rdparty/freetype/src/type42/t42parse.c')
| -rw-r--r-- | src/3rdparty/freetype/src/type42/t42parse.c | 100 |
1 files changed, 55 insertions, 45 deletions
diff --git a/src/3rdparty/freetype/src/type42/t42parse.c b/src/3rdparty/freetype/src/type42/t42parse.c index 4813d1f3f9..c47a77786d 100644 --- a/src/3rdparty/freetype/src/type42/t42parse.c +++ b/src/3rdparty/freetype/src/type42/t42parse.c @@ -1,19 +1,19 @@ -/***************************************************************************/ -/* */ -/* t42parse.c */ -/* */ -/* Type 42 font parser (body). */ -/* */ -/* Copyright 2002-2018 by */ -/* Roberto Alameda. */ -/* */ -/* 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. */ -/* */ -/***************************************************************************/ +/**************************************************************************** + * + * t42parse.c + * + * Type 42 font parser (body). + * + * Copyright (C) 2002-2019 by + * Roberto Alameda. + * + * 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. + * + */ #include "t42parse.h" @@ -23,14 +23,14 @@ #include FT_INTERNAL_POSTSCRIPT_AUX_H - /*************************************************************************/ - /* */ - /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ - /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ - /* messages during execution. */ - /* */ + /************************************************************************** + * + * The macro FT_COMPONENT is used in trace mode. It is an implicit + * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log + * messages during execution. + */ #undef FT_COMPONENT -#define FT_COMPONENT trace_t42 +#define FT_COMPONENT t42 static void @@ -149,19 +149,19 @@ parser->base_dict = NULL; parser->in_memory = 0; - /*******************************************************************/ - /* */ - /* Here a short summary of what is going on: */ - /* */ - /* When creating a new Type 42 parser, we try to locate and load */ - /* the base dictionary, loading the whole font into memory. */ - /* */ - /* When `loading' the base dictionary, we only set up pointers */ - /* in the case of a memory-based stream. Otherwise, we allocate */ - /* and load the base dictionary in it. */ - /* */ - /* parser->in_memory is set if we have a memory stream. */ - /* */ + /******************************************************************** + * + * Here a short summary of what is going on: + * + * When creating a new Type 42 parser, we try to locate and load + * the base dictionary, loading the whole font into memory. + * + * When `loading' the base dictionary, we only set up pointers + * in the case of a memory-based stream. Otherwise, we allocate + * and load the base dictionary in it. + * + * parser->in_memory is set if we have a memory stream. + */ if ( FT_STREAM_SEEK( 0L ) || FT_FRAME_ENTER( 17 ) ) @@ -226,7 +226,8 @@ if ( !parser->in_memory ) FT_FREE( parser->base_dict ); - parser->root.funcs.done( &parser->root ); + if ( parser->root.funcs.done ) + parser->root.funcs.done( &parser->root ); } @@ -284,6 +285,13 @@ matrix->xy = temp[2]; matrix->yy = temp[3]; + if ( !FT_Matrix_Check( matrix ) ) + { + FT_ERROR(( "t42_parse_font_matrix: invalid font matrix\n" )); + parser->root.error = FT_THROW( Invalid_File_Format ); + return; + } + /* note that the offsets must be expressed in integer font units */ offset->x = temp[4] >> 16; offset->y = temp[5] >> 16; @@ -366,12 +374,7 @@ /* We need to `zero' out encoding_table.elements */ for ( n = 0; n < count; n++ ) - { - char* notdef = (char *)".notdef"; - - - (void)T1_Add_Table( char_table, n, notdef, 8 ); - } + (void)T1_Add_Table( char_table, n, ".notdef", 8 ); /* Now we need to read records of the form */ /* */ @@ -588,6 +591,14 @@ else if ( *cur == '<' ) { + if ( string_buf && !allocated ) + { + FT_ERROR(( "t42_parse_sfnts: " + "can't handle mixed binary and hex strings\n" )); + error = FT_THROW( Invalid_File_Format ); + goto Fail; + } + T1_Skip_PS_Token( parser ); if ( parser->root.error ) goto Exit; @@ -1006,8 +1017,7 @@ } /* if /.notdef does not occupy index 0, do our magic. */ - if ( ft_strcmp( (const char*)".notdef", - (const char*)name_table->elements[0] ) ) + if ( ft_strcmp( ".notdef", (const char*)name_table->elements[0] ) ) { /* Swap glyph in index 0 with /.notdef glyph. First, add index 0 */ /* name and code entries to swap_table. Then place notdef_index */ |