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[NTOSKRNL]

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For both FsRtlIsNameInExpression & FsRtlIsDbcsInExpression:
- Remove useless checks
- Move redundant sum before loop, so it's done only once
- Fix handling of * wildcard

This fixes failing kmtest tests added in r50614

svn path=/trunk/; revision=50670
This commit is contained in:
Pierre Schweitzer 2011-02-12 18:39:17 +00:00
parent 334455fcf0
commit 641cb1f0f0
2 changed files with 48 additions and 23 deletions
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36
reactos/ntoskrnl/fsrtl/dbcsname.c
View file

@ -160,7 +160,7 @@ NTAPI
FsRtlIsDbcsInExpression(IN PANSI_STRING Expression,
IN PANSI_STRING Name)
{
USHORT ExpressionPosition = 0, NamePosition = 0, MatchingChars;
USHORT ExpressionPosition = 0, NamePosition = 0, MatchingChars, StarFound = MAXUSHORT;
PAGED_CODE();
ASSERT(Name->Length);
@ -169,34 +169,37 @@ FsRtlIsDbcsInExpression(IN PANSI_STRING Expression,
while (NamePosition < Name->Length && ExpressionPosition < Expression->Length)
{
if ((Expression->Buffer[ExpressionPosition] == Name->Buffer[NamePosition]) ||
(Expression->Buffer[ExpressionPosition] == '?') || (Expression->Buffer[ExpressionPosition] == ANSI_DOS_QM) ||
(Expression->Buffer[ExpressionPosition] == ANSI_DOS_DOT && Name->Buffer[NamePosition] == '.'))
if ((Expression->Buffer[ExpressionPosition] == Name->Buffer[NamePosition]))
{
NamePosition++;
ExpressionPosition++;
}
else if ((Expression->Buffer[ExpressionPosition] == '?') || (Expression->Buffer[ExpressionPosition] == ANSI_DOS_QM) ||
(Expression->Buffer[ExpressionPosition] == ANSI_DOS_DOT && Name->Buffer[NamePosition] == '.'))
{
NamePosition++;
ExpressionPosition++;
StarFound = MAXUSHORT;
}
else if (Expression->Buffer[ExpressionPosition] == '*')
{
if (ExpressionPosition < (Expression->Length - 1))
StarFound = ExpressionPosition++;
if (StarFound < (Expression->Length - 1))
{
if (Expression->Buffer[ExpressionPosition+1] != '*' && Expression->Buffer[ExpressionPosition+1] != '?' &&
Expression->Buffer[ExpressionPosition+1] != ANSI_DOS_DOT &&
Expression->Buffer[ExpressionPosition+1] != ANSI_DOS_QM &&
Expression->Buffer[ExpressionPosition+1] != ANSI_DOS_STAR)
while (Name->Buffer[NamePosition] != Expression->Buffer[ExpressionPosition] &&
NamePosition < Name->Length)
{
while (Name->Buffer[NamePosition] != Expression->Buffer[ExpressionPosition+1] &&
NamePosition < Name->Length) NamePosition++;
NamePosition++;
}
}
else
{
NamePosition = Name->Length;
}
ExpressionPosition++;
}
else if (Expression->Buffer[ExpressionPosition] == ANSI_DOS_STAR)
{
StarFound = MAXUSHORT;
MatchingChars = NamePosition;
while (MatchingChars < Name->Length)
{
@ -208,6 +211,15 @@ FsRtlIsDbcsInExpression(IN PANSI_STRING Expression,
}
ExpressionPosition++;
}
else if (StarFound != MAXUSHORT)
{
ExpressionPosition = StarFound + 1;
while (Name->Buffer[NamePosition] != Expression->Buffer[ExpressionPosition] &&
NamePosition < Name->Length)
{
NamePosition++;
}
}
else
{
NamePosition = Name->Length;

35
reactos/ntoskrnl/fsrtl/name.c
View file

@ -22,40 +22,44 @@ FsRtlIsNameInExpressionPrivate(IN PUNICODE_STRING Expression,
IN BOOLEAN IgnoreCase,
IN PWCHAR UpcaseTable OPTIONAL)
{
USHORT ExpressionPosition = 0, NamePosition = 0, MatchingChars;
USHORT ExpressionPosition = 0, NamePosition = 0, MatchingChars, StarFound = MAXUSHORT;
PAGED_CODE();
ASSERT(!IgnoreCase || UpcaseTable);
while (NamePosition < Name->Length / sizeof(WCHAR) && ExpressionPosition < Expression->Length / sizeof(WCHAR))
{
if ((Expression->Buffer[ExpressionPosition] == (IgnoreCase ? UpcaseTable[Name->Buffer[NamePosition]] : Name->Buffer[NamePosition])) ||
(Expression->Buffer[ExpressionPosition] == L'?') || (Expression->Buffer[ExpressionPosition] == DOS_QM) ||
(Expression->Buffer[ExpressionPosition] == DOS_DOT && Name->Buffer[NamePosition] == L'.'))
if ((Expression->Buffer[ExpressionPosition] == (IgnoreCase ? UpcaseTable[Name->Buffer[NamePosition]] : Name->Buffer[NamePosition])))
{
NamePosition++;
ExpressionPosition++;
}
else if (Expression->Buffer[ExpressionPosition] == L'?' || (Expression->Buffer[ExpressionPosition] == DOS_QM) ||
(Expression->Buffer[ExpressionPosition] == DOS_DOT && Name->Buffer[NamePosition] == L'.'))
{
NamePosition++;
ExpressionPosition++;
StarFound = MAXUSHORT;
}
else if (Expression->Buffer[ExpressionPosition] == L'*')
{
if (ExpressionPosition < (Expression->Length / sizeof(WCHAR) - 1))
StarFound = ExpressionPosition++;
if (StarFound < (Expression->Length / sizeof(WCHAR) - 1))
{
if (Expression->Buffer[ExpressionPosition+1] != L'*' && Expression->Buffer[ExpressionPosition+1] != L'?' &&
Expression->Buffer[ExpressionPosition+1] != DOS_DOT && Expression->Buffer[ExpressionPosition+1] != DOS_QM &&
Expression->Buffer[ExpressionPosition+1] != DOS_STAR)
while ((IgnoreCase ? UpcaseTable[Name->Buffer[NamePosition]] : Name->Buffer[NamePosition]) != Expression->Buffer[ExpressionPosition] &&
NamePosition < Name->Length / sizeof(WCHAR))
{
while ((IgnoreCase ? UpcaseTable[Name->Buffer[NamePosition]] : Name->Buffer[NamePosition]) != Expression->Buffer[ExpressionPosition+1] &&
NamePosition < Name->Length / sizeof(WCHAR)) NamePosition++;
NamePosition++;
}
}
else
{
NamePosition = Name->Length / sizeof(WCHAR);
}
ExpressionPosition++;
}
else if (Expression->Buffer[ExpressionPosition] == DOS_STAR)
{
StarFound = MAXUSHORT;
MatchingChars = NamePosition;
while (MatchingChars < Name->Length / sizeof(WCHAR))
{
@ -67,6 +71,15 @@ FsRtlIsNameInExpressionPrivate(IN PUNICODE_STRING Expression,
}
ExpressionPosition++;
}
else if (StarFound != MAXUSHORT)
{
ExpressionPosition = StarFound + 1;
while ((IgnoreCase ? UpcaseTable[Name->Buffer[NamePosition]] : Name->Buffer[NamePosition]) != Expression->Buffer[ExpressionPosition] &&
NamePosition < Name->Length / sizeof(WCHAR))
{
NamePosition++;
}
}
else
{
NamePosition = Name->Length / sizeof(WCHAR);