159 lines
2.9 KiB
C
159 lines
2.9 KiB
C
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/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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Regdval.c
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Abstract:
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This module contains the server side implementation for the Win32
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Registry API to delete values from keys. That is:
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- BaseRegDeleteValue
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Author:
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David J. Gilman (davegi) 15-Nov-1991
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Notes:
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See the Notes in Regkey.c.
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--*/
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#include <rpc.h>
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#include "regrpc.h"
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#include "localreg.h"
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#ifdef LOCAL
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#include "tsappcmp.h"
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#include "regclass.h"
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#endif
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error_status_t
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BaseRegDeleteValue (
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HKEY hKey,
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PUNICODE_STRING lpValueName
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)
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/*++
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Routine Description:
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Remove the named value from the specified key.
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Arguments:
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hKey - Supplies a handle to the open key.
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lpValueName - Supplies the name of the value to remove. lpValueName
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may be NULL.
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Return Value:
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Returns ERROR_SUCCESS (0) for success; error-code for failure.
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Notes:
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hKey must have been opened for KEY_SET_VALUE.
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--*/
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{
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HKEY hkDelete;
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NTSTATUS Status;
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#ifdef LOCAL
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HKEY hkUserClasses;
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HKEY hkMachineClasses;
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hkUserClasses = NULL;
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hkMachineClasses = NULL;
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#endif
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hkDelete = hKey;
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//
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// Subtract the NULL from the string length. This was added
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// by the client so that RPC would transmit the whole thing.
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//
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lpValueName->Length -= sizeof( UNICODE_NULL );
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//
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// Call the Nt Api to delete the value, map the NTSTATUS code to a
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// Win32 Registry error code and return.
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//
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#ifdef LOCAL
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if (gpfnTermsrvDeleteValue) {
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//
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// Remove the value from the Terminal Server registry tracking database
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//
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gpfnTermsrvDeleteValue(hKey, lpValueName);
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}
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#endif
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#ifdef LOCAL
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if (REG_CLASS_IS_SPECIAL_KEY(hKey)) {
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Status = BaseRegGetUserAndMachineClass(
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NULL,
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hkDelete,
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MAXIMUM_ALLOWED,
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&hkMachineClasses,
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&hkUserClasses);
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if (!NT_SUCCESS(Status)) {
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return (error_status_t)RtlNtStatusToDosError(Status);
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}
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}
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if (hkUserClasses && hkMachineClasses) {
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hkDelete = hkUserClasses;
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}
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#endif
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Status = NtDeleteValueKey(
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hkDelete,
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lpValueName
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);
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#ifdef LOCAL
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//
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// For class keys, try again with machine if there were
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// two keys of the same name
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//
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if (REG_CLASS_IS_SPECIAL_KEY(hKey)) {
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if ((STATUS_OBJECT_NAME_NOT_FOUND == Status) &&
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(hkUserClasses && hkMachineClasses)) {
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Status = NtDeleteValueKey(
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hkMachineClasses,
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lpValueName
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);
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}
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}
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if (hkUserClasses && hkMachineClasses) {
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if (hkUserClasses != hKey) {
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NtClose(hkUserClasses);
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} else {
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NtClose(hkMachineClasses);
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}
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}
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#endif // LOCAL
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return (error_status_t)RtlNtStatusToDosError(Status);
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}
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