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The RtlUnicodeStringValidate function validates the contents of a UNICODE_STRING structure.
Syntax
NTSTRSAFEDDI RtlUnicodeStringValidate(
[in] PCUNICODE_STRING SourceString
);
Parameters
[in] SourceString
A pointer to a UNICODE_STRING structure to be validated.
Return value
RtlUnicodeStringValidate returns one of the following NTSTATUS values.
| Return code | Description |
|---|---|
|
This success status means that the function completed successfully. |
|
This error status means that the function received an invalid input parameter. For more information, see the following list. |
RtlUnicodeStringValidate returns the STATUS_INVALID_PARAMETER value when one of the following occurs:
- SourceString->Length % sizeof(WCHAR) does not equal zero.
- SourceString->MaximumLength % sizeof(WCHAR) does not equal zero.
- SourceString->Length is greater than SourceString->MaximumLength.
- SourceString->MaximumLength is greater than NTSTRSAFE_UNICODE_STRING_MAX_CCH * sizeof(WCHAR).
- SourceString->Buffer equals NULL but SourceString->Length or SourceString->MaximumLength does not equal zero.
Remarks
The SourceString pointer cannot be NULL. If you need to specify a NULL pointer value, use the RtlUnicodeStringValidateEx function.
For more information about the safe string functions, see Using Safe String Functions.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Windows XP with Service Pack 1 (SP1) and later versions of Windows. |
| Target Platform | Desktop |
| Header | ntstrsafe.h (include Ntstrsafe.h) |
| Library | Ntstrsafe.lib |
| IRQL | Any if strings being manipulated are always resident in memory, otherwise PASSIVE_LEVEL |