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[NTFS]

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Don't bother comparing names if they have null length

svn path=/trunk/; revision=69001
This commit is contained in:
Pierre Schweitzer 2015-09-04 15:52:19 +00:00
parent 02a238acf4
commit bff1ce32bc
1 changed files with 18 additions and 4 deletions
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22
reactos/drivers/filesystems/ntfs/mft.c
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@ -87,22 +87,36 @@ FindAttribute(PDEVICE_EXTENSION Vcb,
ULONG NameLength,
PNTFS_ATTR_CONTEXT * AttrCtx)
{
BOOLEAN Found;
NTSTATUS Status;
FIND_ATTR_CONTXT Context;
PNTFS_ATTR_RECORD Attribute;
DPRINT("FindAttribute(%p, %p, 0x%x, %S, %u, %p)\n", Vcb, MftRecord, Type, Name, NameLength, AttrCtx);
Found = FALSE;
Status = FindFirstAttribute(&Context, Vcb, MftRecord, FALSE, &Attribute);
while (NT_SUCCESS(Status))
{
if (Attribute->Type == Type && Attribute->NameLength == NameLength)
{
PWCHAR AttrName;
if (NameLength != 0)
{
PWCHAR AttrName;
AttrName = (PWCHAR)((PCHAR)Attribute + Attribute->NameOffset);
DPRINT("%.*S, %.*S\n", Attribute->NameLength, AttrName, NameLength, Name);
if (RtlCompareMemory(AttrName, Name, NameLength << 1) == (NameLength << 1))
AttrName = (PWCHAR)((PCHAR)Attribute + Attribute->NameOffset);
DPRINT("%.*S, %.*S\n", Attribute->NameLength, AttrName, NameLength, Name);
if (RtlCompareMemory(AttrName, Name, NameLength << 1) == (NameLength << 1))
{
Found = TRUE;
}
}
else
{
Found = TRUE;
}
if (Found)
{
/* Found it, fill up the context and return. */
DPRINT("Found context\n");