Dan Kegel : ntdll: Fix endianness of three fields in DVD_LAYER_DESCRIPTOR.
Alexandre Julliard
julliard at winehq.org
Tue Feb 14 13:23:33 CST 2012
Module: wine
Branch: master
Commit: 6077b623f299861732d1f2ea1f3ab5af09d03adf
URL: http://source.winehq.org/git/wine.git/?a=commit;h=6077b623f299861732d1f2ea1f3ab5af09d03adf
Author: Dan Kegel <dank at kegel.com>
Date: Mon Feb 13 10:51:18 2012 -0800
ntdll: Fix endianness of three fields in DVD_LAYER_DESCRIPTOR.
---
dlls/ntdll/cdrom.c | 18 ++++++++++++------
1 files changed, 12 insertions(+), 6 deletions(-)
diff --git a/dlls/ntdll/cdrom.c b/dlls/ntdll/cdrom.c
index 802782b..1cd511c 100644
--- a/dlls/ntdll/cdrom.c
+++ b/dlls/ntdll/cdrom.c
@@ -144,6 +144,12 @@ WINE_DEFAULT_DEBUG_CHANNEL(cdrom);
# define CD_FRAMES 75 /* frames per second */
#endif
+#ifdef WORDS_BIGENDIAN
+#define GET_BE_DWORD(x) (x)
+#else
+#define GET_BE_DWORD(x) RtlUlongByteSwap(x)
+#endif
+
static const struct iocodexs
{
DWORD code;
@@ -2568,9 +2574,9 @@ static NTSTATUS DVD_ReadStructure(int dev, const DVD_READ_STRUCTURE *structure,
p->Reserved1 = 0;
p->TrackDensity = l->track_density;
p->LinearDensity = l->linear_density;
- p->StartingDataSector = l->start_sector;
- p->EndDataSector = l->end_sector;
- p->EndLayerZeroSector = l->end_sector_l0;
+ p->StartingDataSector = GET_BE_DWORD(l->start_sector);
+ p->EndDataSector = GET_BE_DWORD(l->end_sector);
+ p->EndLayerZeroSector = GET_BE_DWORD(l->end_sector_l0);
p->Reserved5 = 0;
p->BCAFlag = l->bca;
p->Reserved6 = 0;
@@ -2693,9 +2699,9 @@ static NTSTATUS DVD_ReadStructure(int dev, const DVD_READ_STRUCTURE *structure,
nt_desc.xlayer->TrackDensity = desc.phys.trackDensity;
nt_desc.xlayer->LinearDensity = desc.phys.linearDensity;
nt_desc.xlayer->BCAFlag = desc.phys.bcaFlag;
- nt_desc.xlayer->StartingDataSector = OSReadBigInt32(&desc.phys.zero1, 0);
- nt_desc.xlayer->EndDataSector = OSReadBigInt32(&desc.phys.zero2, 0);
- nt_desc.xlayer->EndLayerZeroSector = OSReadBigInt32(&desc.phys.zero3, 0);
+ nt_desc.xlayer->StartingDataSector = *(DWORD *)&desc.phys.zero1;
+ nt_desc.xlayer->EndDataSector = *(DWORD *)&desc.phys.zero2;
+ nt_desc.xlayer->EndLayerZeroSector = *(DWORD *)&desc.phys.zero3;
nt_desc.xlayer->Reserved5 = 0;
nt_desc.xlayer->Reserved6 = 0;
break;
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