You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
166 lines
3.4 KiB
166 lines
3.4 KiB
/*++
|
|
|
|
|
|
Copyright (c) 1991 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
Regdval.c
|
|
|
|
Abstract:
|
|
|
|
This module contains the server side implementation for the Win32
|
|
Registry API to delete values from keys. That is:
|
|
|
|
- BaseRegDeleteValue
|
|
|
|
Author:
|
|
|
|
David J. Gilman (davegi) 15-Nov-1991
|
|
|
|
Notes:
|
|
|
|
See the Notes in Regkey.c.
|
|
|
|
--*/
|
|
|
|
#include <rpc.h>
|
|
#include "regrpc.h"
|
|
#include "localreg.h"
|
|
#ifdef LOCAL
|
|
#include "tsappcmp.h"
|
|
#include "regclass.h"
|
|
#endif
|
|
|
|
|
|
error_status_t
|
|
BaseRegDeleteValue (
|
|
HKEY hKey,
|
|
PUNICODE_STRING lpValueName
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Remove the named value from the specified key.
|
|
|
|
Arguments:
|
|
|
|
hKey - Supplies a handle to the open key.
|
|
|
|
lpValueName - Supplies the name of the value to remove. lpValueName
|
|
may be NULL.
|
|
|
|
Return Value:
|
|
|
|
Returns ERROR_SUCCESS (0) for success; error-code for failure.
|
|
|
|
Notes:
|
|
|
|
hKey must have been opened for KEY_SET_VALUE.
|
|
|
|
--*/
|
|
|
|
{
|
|
HKEY hkDelete;
|
|
NTSTATUS Status;
|
|
#ifdef LOCAL
|
|
|
|
HKEY hkUserClasses;
|
|
HKEY hkMachineClasses;
|
|
|
|
hkUserClasses = NULL;
|
|
hkMachineClasses = NULL;
|
|
|
|
#endif //LOCAL
|
|
//
|
|
// Check for malformed arguments from malicious clients
|
|
//
|
|
if( (lpValueName == NULL) ||
|
|
(lpValueName->Length < sizeof(UNICODE_NULL)) ||
|
|
((lpValueName->Length % sizeof(WCHAR)) != 0) ) {
|
|
return(ERROR_INVALID_PARAMETER);
|
|
}
|
|
|
|
hkDelete = hKey;
|
|
|
|
//
|
|
// Subtract the NULL from the string length. This was added
|
|
// by the client so that RPC would transmit the whole thing.
|
|
//
|
|
lpValueName->Length -= sizeof( UNICODE_NULL );
|
|
|
|
//
|
|
// Call the Nt Api to delete the value, map the NTSTATUS code to a
|
|
// Win32 Registry error code and return.
|
|
//
|
|
|
|
#ifdef LOCAL
|
|
if (gpfnTermsrvDeleteValue) {
|
|
//
|
|
// Remove the value from the Terminal Server registry tracking database
|
|
//
|
|
gpfnTermsrvDeleteValue(hKey, lpValueName);
|
|
}
|
|
#endif
|
|
|
|
#ifdef LOCAL
|
|
if (REG_CLASS_IS_SPECIAL_KEY(hKey)) {
|
|
|
|
Status = BaseRegGetUserAndMachineClass(
|
|
NULL,
|
|
hkDelete,
|
|
MAXIMUM_ALLOWED,
|
|
&hkMachineClasses,
|
|
&hkUserClasses);
|
|
|
|
if (!NT_SUCCESS(Status)) {
|
|
return (error_status_t)RtlNtStatusToDosError(Status);
|
|
}
|
|
}
|
|
|
|
if (hkUserClasses && hkMachineClasses) {
|
|
hkDelete = hkUserClasses;
|
|
}
|
|
#endif
|
|
|
|
Status = NtDeleteValueKey(
|
|
hkDelete,
|
|
lpValueName
|
|
);
|
|
|
|
#ifdef LOCAL
|
|
|
|
//
|
|
// For class keys, try again with machine if there were
|
|
// two keys of the same name
|
|
//
|
|
if (REG_CLASS_IS_SPECIAL_KEY(hKey)) {
|
|
|
|
if ((STATUS_OBJECT_NAME_NOT_FOUND == Status) &&
|
|
(hkUserClasses && hkMachineClasses)) {
|
|
|
|
Status = NtDeleteValueKey(
|
|
hkMachineClasses,
|
|
lpValueName
|
|
);
|
|
}
|
|
}
|
|
|
|
if (hkUserClasses && hkMachineClasses) {
|
|
if (hkUserClasses != hKey) {
|
|
NtClose(hkUserClasses);
|
|
} else {
|
|
NtClose(hkMachineClasses);
|
|
}
|
|
}
|
|
#endif // LOCAL
|
|
|
|
return (error_status_t)RtlNtStatusToDosError(Status);
|
|
|
|
}
|
|
|
|
|
|
|
|
|