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[RTL] Implement RtlpApplyLengthFunction

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CORE-17248
This commit is contained in:
Mark Jansen 2021-02-15 20:10:59 +01:00
parent 11f239373d
commit 3e7e4ee360
4 changed files with 188 additions and 3 deletions
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45
sdk/lib/rtl/path.c
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@ -446,10 +446,49 @@ NTAPI
RtlpApplyLengthFunction(IN ULONG Flags,
IN ULONG Type,
IN PVOID UnicodeStringOrUnicodeStringBuffer,
IN PVOID LengthFunction)
IN NTSTATUS(NTAPI* LengthFunction)(ULONG, PUNICODE_STRING, PULONG))
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
NTSTATUS Status;
PUNICODE_STRING String;
ULONG Length;
if (Flags || UnicodeStringOrUnicodeStringBuffer == NULL || LengthFunction == NULL)
{
DPRINT1("ERROR: Flags=0x%x, UnicodeStringOrUnicodeStringBuffer=%p, LengthFunction=%p\n",
Flags, UnicodeStringOrUnicodeStringBuffer, LengthFunction);
return STATUS_INVALID_PARAMETER;
}
if (Type == sizeof(UNICODE_STRING))
{
String = (PUNICODE_STRING)UnicodeStringOrUnicodeStringBuffer;
}
else if (Type == sizeof(RTL_UNICODE_STRING_BUFFER))
{
String = &((PRTL_UNICODE_STRING_BUFFER)UnicodeStringOrUnicodeStringBuffer)->String;
}
else
{
DPRINT1("ERROR: Type = %u\n", Type);
return STATUS_INVALID_PARAMETER;
}
Length = 0;
Status = LengthFunction(0, String, &Length);
if (!NT_SUCCESS(Status))
return Status;
if (Length > UNICODE_STRING_MAX_CHARS)
return STATUS_NAME_TOO_LONG;
String->Length = (USHORT)(Length * sizeof(WCHAR));
if (Type == sizeof(RTL_UNICODE_STRING_BUFFER))
{
String->Buffer[Length] = UNICODE_NULL;
}
return STATUS_SUCCESS;
}
NTSTATUS