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[VFATLIB] Add packing to LFN_ENT structure

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The structure is packed in the original dosfstools code, too.

Fixes GCC 13 warning:

C:/ReactOS/reactos/sdk/lib/fslib/vfatlib/check/lfn.c: In function 'lfn_add_slot':
C:/ReactOS/reactos/sdk/lib/fslib/vfatlib/check/lfn.c:208:5: warning: converting a packed 'DIR_ENT' pointer (alignment 1) to a 'LFN_ENT' pointer (alignment 2) may result in an unaligned pointer value [-Waddress-of-packed-member]
  208 |     LFN_ENT *lfn = (LFN_ENT *) de;
      |     ^~~~~~~
In file included from C:/ReactOS/reactos/sdk/lib/fslib/vfatlib/check/dosfsck.h:8,
                 from C:/ReactOS/reactos/sdk/lib/fslib/vfatlib/vfatlib.h:25,
                 from C:/ReactOS/reactos/sdk/lib/fslib/vfatlib/check/lfn.c:24:
C:/ReactOS/reactos/sdk/lib/fslib/vfatlib/check/fsck.fat.h:165:9: note: defined here
  165 | typedef struct {
      |         ^~~~~~
C:/ReactOS/reactos/sdk/lib/fslib/vfatlib/check/lfn.c:29:9: note: defined here
   29 | typedef struct {
      |         ^~~~~~
This commit is contained in:
Timo Kreuzer
2026-01-19 19:29:03 +02:00
parent daeb0bb257
commit ddf58eb2f8
1 changed files with 8 additions and 0 deletions
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8
sdk/lib/fslib/vfatlib/check/lfn.c
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@@ -26,6 +26,10 @@
#define NDEBUG
#include <debug.h>
#ifdef __REACTOS__
#include <pshpack1.h>
#endif
typedef struct {
uint8_t id; /* sequence number for slot */
uint8_t name0_4[10]; /* first 5 characters in name */
@@ -37,6 +41,10 @@ typedef struct {
uint8_t name11_12[4]; /* last 2 characters in name */
} LFN_ENT;
#ifdef __REACTOS__
#include <poppack.h>
#endif
#define LFN_ID_START 0x40
#define LFN_ID_SLOTMASK 0x1f