[tfaber] 70216: [FASTFAT] - Gracefully handle empty filenames found on disk, and warn about them.

Author: tfaber
Date: Mon Nov 30 11:25:14 2015
New Revision: 70216

URL: http://svn.reactos.org/svn/reactos?rev=70216&view=rev
Log:
[FASTFAT]
- Gracefully handle empty filenames found on disk, and warn about them.

Modified:
    trunk/reactos/drivers/filesystems/fastfat/create.c
    trunk/reactos/drivers/filesystems/fastfat/fcb.c

Modified: trunk/reactos/drivers/filesystems/fastfat/create.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat/create.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat/create.c	[iso-8859-1] Mon Nov 30 11:25:14
2015
@@ -288,6 +288,18 @@
             DirContext->DirIndex++;
             continue;
         }
+        if (DirContext->LongNameU.Length == 0 ||
+            DirContext->ShortNameU.Length == 0)
+        {
+            DPRINT1("WARNING: File system corruption detected. You may need to run a
disk repair utility.\n");
+            if (VfatGlobalData->Flags & VFAT_BREAK_ON_CORRUPTION)
+            {
+                ASSERT(DirContext->LongNameU.Length != 0 &&
+                       DirContext->ShortNameU.Length != 0);
+            }
+            DirContext->DirIndex++;
+            continue;
+        }
         if (WildCard)
         {
             Found = FsRtlIsNameInExpression(&FileToFindUpcase,
&DirContext->LongNameU, TRUE, NULL) ||

Modified: trunk/reactos/drivers/filesystems/fastfat/fcb.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfa…
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat/fcb.c	[iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat/fcb.c	[iso-8859-1] Mon Nov 30 11:25:14 2015
@@ -759,6 +759,18 @@
 
         if (!ENTRY_VOLUME(pDeviceExt, &DirContext.DirEntry))
         {
+            if (DirContext.LongNameU.Length == 0 ||
+                DirContext.ShortNameU.Length == 0)
+            {
+                DPRINT1("WARNING: File system corruption detected. You may need to
run a disk repair utility.\n");
+                if (VfatGlobalData->Flags & VFAT_BREAK_ON_CORRUPTION)
+                {
+                    ASSERT(DirContext.LongNameU.Length != 0 &&
+                           DirContext.ShortNameU.Length != 0);
+                }
+                DirContext.DirIndex++;
+                continue;
+            }
             FoundLong = RtlEqualUnicodeString(FileToFindU, &DirContext.LongNameU,
TRUE);
             if (FoundLong == FALSE)
             {