diff options
Diffstat (limited to 'src/base/ftstream.c')
| -rw-r--r-- | src/base/ftstream.c | 56 |
1 files changed, 31 insertions, 25 deletions
diff --git a/src/base/ftstream.c b/src/base/ftstream.c index cff67e0..b638599 100644 --- a/src/base/ftstream.c +++ b/src/base/ftstream.c @@ -4,7 +4,7 @@ /* */ /* I/O stream support (body). */ /* */ -/* Copyright 2000-2001, 2002, 2004, 2005, 2006, 2008 by */ +/* Copyright 2000-2001, 2002, 2004, 2005, 2006, 2008, 2009 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -60,13 +60,12 @@ FT_Error error = FT_Err_Ok; - stream->pos = pos; - if ( stream->read ) { if ( stream->read( stream, pos, 0, 0 ) ) { - FT_ERROR(( "FT_Stream_Seek: invalid i/o; pos = 0x%lx, size = 0x%lx\n", + FT_ERROR(( "FT_Stream_Seek:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", pos, stream->size )); error = FT_Err_Invalid_Stream_Operation; @@ -75,12 +74,16 @@ /* note that seeking to the first position after the file is valid */ else if ( pos > stream->size ) { - FT_ERROR(( "FT_Stream_Seek: invalid i/o; pos = 0x%lx, size = 0x%lx\n", + FT_ERROR(( "FT_Stream_Seek:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", pos, stream->size )); error = FT_Err_Invalid_Stream_Operation; } + if ( !error ) + stream->pos = pos; + return error; } @@ -124,7 +127,8 @@ if ( pos >= stream->size ) { - FT_ERROR(( "FT_Stream_ReadAt: invalid i/o; pos = 0x%lx, size = 0x%lx\n", + FT_ERROR(( "FT_Stream_ReadAt:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", pos, stream->size )); return FT_Err_Invalid_Stream_Operation; @@ -145,8 +149,8 @@ if ( read_bytes < count ) { - FT_ERROR(( "FT_Stream_ReadAt:" )); - FT_ERROR(( " invalid read; expected %lu bytes, got %lu\n", + FT_ERROR(( "FT_Stream_ReadAt:" + " invalid read; expected %lu bytes, got %lu\n", count, read_bytes )); error = FT_Err_Invalid_Stream_Operation; @@ -211,7 +215,7 @@ FT_Stream_ReleaseFrame( FT_Stream stream, FT_Byte** pbytes ) { - if ( stream->read ) + if ( stream && stream->read ) { FT_Memory memory = stream->memory; @@ -256,8 +260,8 @@ stream->base, count ); if ( read_bytes < count ) { - FT_ERROR(( "FT_Stream_EnterFrame:" )); - FT_ERROR(( " invalid read; expected %lu bytes, got %lu\n", + FT_ERROR(( "FT_Stream_EnterFrame:" + " invalid read; expected %lu bytes, got %lu\n", count, read_bytes )); FT_FREE( stream->base ); @@ -273,8 +277,8 @@ if ( stream->pos >= stream->size || stream->pos + count > stream->size ) { - FT_ERROR(( "FT_Stream_EnterFrame:" )); - FT_ERROR(( " invalid i/o; pos = 0x%lx, count = %lu, size = 0x%lx\n", + FT_ERROR(( "FT_Stream_EnterFrame:" + " invalid i/o; pos = 0x%lx, count = %lu, size = 0x%lx\n", stream->pos, count, stream->size )); error = FT_Err_Invalid_Stream_Operation; @@ -459,7 +463,8 @@ Fail: *error = FT_Err_Invalid_Stream_Operation; - FT_ERROR(( "FT_Stream_ReadChar: invalid i/o; pos = 0x%lx, size = 0x%lx\n", + FT_ERROR(( "FT_Stream_ReadChar:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", stream->pos, stream->size )); return 0; @@ -505,8 +510,8 @@ Fail: *error = FT_Err_Invalid_Stream_Operation; - FT_ERROR(( "FT_Stream_ReadShort:" )); - FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + FT_ERROR(( "FT_Stream_ReadShort:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", stream->pos, stream->size )); return 0; @@ -552,8 +557,8 @@ Fail: *error = FT_Err_Invalid_Stream_Operation; - FT_ERROR(( "FT_Stream_ReadShortLE:" )); - FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + FT_ERROR(( "FT_Stream_ReadShortLE:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", stream->pos, stream->size )); return 0; @@ -599,8 +604,8 @@ Fail: *error = FT_Err_Invalid_Stream_Operation; - FT_ERROR(( "FT_Stream_ReadOffset:" )); - FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + FT_ERROR(( "FT_Stream_ReadOffset:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", stream->pos, stream->size )); return 0; @@ -645,9 +650,10 @@ return result; Fail: - FT_ERROR(( "FT_Stream_ReadLong: invalid i/o; pos = 0x%lx, size = 0x%lx\n", - stream->pos, stream->size )); *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadLong:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); return 0; } @@ -691,10 +697,10 @@ return result; Fail: - FT_ERROR(( "FT_Stream_ReadLongLE:" )); - FT_ERROR(( " invalid i/o; pos = 0x%lx, size = 0x%lx\n", - stream->pos, stream->size )); *error = FT_Err_Invalid_Stream_Operation; + FT_ERROR(( "FT_Stream_ReadLongLE:" + " invalid i/o; pos = 0x%lx, size = 0x%lx\n", + stream->pos, stream->size )); return 0; } |