diff options
Diffstat (limited to 'src/3rdparty/freetype/src/base/ftstream.c')
| -rw-r--r-- | src/3rdparty/freetype/src/base/ftstream.c | 48 |
1 files changed, 26 insertions, 22 deletions
diff --git a/src/3rdparty/freetype/src/base/ftstream.c b/src/3rdparty/freetype/src/base/ftstream.c index cc926565c3..64826acebe 100644 --- a/src/3rdparty/freetype/src/base/ftstream.c +++ b/src/3rdparty/freetype/src/base/ftstream.c @@ -4,7 +4,7 @@ * * I/O stream support (body). * - * Copyright (C) 2000-2022 by + * Copyright (C) 2000-2023 by * David Turner, Robert Wilhelm, and Werner Lemberg. * * This file is part of the FreeType project, and may only be used, @@ -141,7 +141,9 @@ if ( read_bytes > count ) read_bytes = count; - FT_MEM_COPY( buffer, stream->base + pos, read_bytes ); + /* Allow "reading" zero bytes without UB even if buffer is NULL */ + if ( count ) + FT_MEM_COPY( buffer, stream->base + pos, read_bytes ); } stream->pos = pos + read_bytes; @@ -178,7 +180,9 @@ if ( read_bytes > count ) read_bytes = count; - FT_MEM_COPY( buffer, stream->base + stream->pos, read_bytes ); + /* Allow "reading" zero bytes without UB even if buffer is NULL */ + if ( count ) + FT_MEM_COPY( buffer, stream->base + stream->pos, read_bytes ); } stream->pos += read_bytes; @@ -261,7 +265,7 @@ } #ifdef FT_DEBUG_MEMORY - /* assume _ft_debug_file and _ft_debug_lineno are already set */ + /* assume `ft_debug_file_` and `ft_debug_lineno_` are already set */ stream->base = (unsigned char*)ft_mem_qalloc( memory, (FT_Long)count, &error ); @@ -363,11 +367,11 @@ } - FT_BASE_DEF( FT_UShort ) + FT_BASE_DEF( FT_UInt16 ) FT_Stream_GetUShort( FT_Stream stream ) { FT_Byte* p; - FT_UShort result; + FT_UInt16 result; FT_ASSERT( stream && stream->cursor ); @@ -382,11 +386,11 @@ } - FT_BASE_DEF( FT_UShort ) + FT_BASE_DEF( FT_UInt16 ) FT_Stream_GetUShortLE( FT_Stream stream ) { FT_Byte* p; - FT_UShort result; + FT_UInt16 result; FT_ASSERT( stream && stream->cursor ); @@ -401,11 +405,11 @@ } - FT_BASE_DEF( FT_ULong ) + FT_BASE_DEF( FT_UInt32 ) FT_Stream_GetUOffset( FT_Stream stream ) { FT_Byte* p; - FT_ULong result; + FT_UInt32 result; FT_ASSERT( stream && stream->cursor ); @@ -419,11 +423,11 @@ } - FT_BASE_DEF( FT_ULong ) + FT_BASE_DEF( FT_UInt32 ) FT_Stream_GetULong( FT_Stream stream ) { FT_Byte* p; - FT_ULong result; + FT_UInt32 result; FT_ASSERT( stream && stream->cursor ); @@ -437,11 +441,11 @@ } - FT_BASE_DEF( FT_ULong ) + FT_BASE_DEF( FT_UInt32 ) FT_Stream_GetULongLE( FT_Stream stream ) { FT_Byte* p; - FT_ULong result; + FT_UInt32 result; FT_ASSERT( stream && stream->cursor ); @@ -493,13 +497,13 @@ } - FT_BASE_DEF( FT_UShort ) + FT_BASE_DEF( FT_UInt16 ) FT_Stream_ReadUShort( FT_Stream stream, FT_Error* error ) { FT_Byte reads[2]; FT_Byte* p; - FT_UShort result = 0; + FT_UInt16 result = 0; FT_ASSERT( stream ); @@ -538,13 +542,13 @@ } - FT_BASE_DEF( FT_UShort ) + FT_BASE_DEF( FT_UInt16 ) FT_Stream_ReadUShortLE( FT_Stream stream, FT_Error* error ) { FT_Byte reads[2]; FT_Byte* p; - FT_UShort result = 0; + FT_UInt16 result = 0; FT_ASSERT( stream ); @@ -628,13 +632,13 @@ } - FT_BASE_DEF( FT_ULong ) + FT_BASE_DEF( FT_UInt32 ) FT_Stream_ReadULong( FT_Stream stream, FT_Error* error ) { FT_Byte reads[4]; FT_Byte* p; - FT_ULong result = 0; + FT_UInt32 result = 0; FT_ASSERT( stream ); @@ -673,13 +677,13 @@ } - FT_BASE_DEF( FT_ULong ) + FT_BASE_DEF( FT_UInt32 ) FT_Stream_ReadULongLE( FT_Stream stream, FT_Error* error ) { FT_Byte reads[4]; FT_Byte* p; - FT_ULong result = 0; + FT_UInt32 result = 0; FT_ASSERT( stream ); |