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ntdll: Append a terminating null and return the correct length in NtQuerySymbolicLinkObject.

oldstable
Alexandre Julliard 2010-06-30 16:11:42 +02:00
parent 4c1f36cb68
commit 6df7e7b943
1 changed files with 15 additions and 12 deletions
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27
dlls/ntdll/om.c
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@ -634,33 +634,36 @@ NTSTATUS WINAPI NtCreateSymbolicLinkObject(OUT PHANDLE SymbolicLinkHandle,IN ACC
* ZwQuerySymbolicLinkObject [NTDLL.@]
*
* Query a namespace symbolic link object target name.
*
*
* PARAMS
* LinkHandle [I] Handle to a symbolic link object
* LinkTarget [O] Destination for the symbolic link target
* ReturnedLength [O] Size of returned data
* handle [I] Handle to a symbolic link object
* target [O] Destination for the symbolic link target
* length [O] Size of returned data
*
* RETURNS
* Success: ERROR_SUCCESS.
* Failure: An NTSTATUS error code.
*/
NTSTATUS WINAPI NtQuerySymbolicLinkObject(IN HANDLE LinkHandle, IN OUT PUNICODE_STRING LinkTarget,
OUT PULONG ReturnedLength OPTIONAL)
NTSTATUS WINAPI NtQuerySymbolicLinkObject( HANDLE handle, PUNICODE_STRING target, PULONG length )
{
NTSTATUS ret;
TRACE("(%p,%p,%p)\n", LinkHandle, LinkTarget, ReturnedLength);
if (!LinkTarget) return STATUS_ACCESS_VIOLATION;
TRACE("(%p,%p,%p)\n", handle, target, length );
if (!target) return STATUS_ACCESS_VIOLATION;
SERVER_START_REQ(query_symlink)
{
req->handle = wine_server_obj_handle( LinkHandle );
wine_server_set_reply( req, LinkTarget->Buffer, LinkTarget->MaximumLength );
req->handle = wine_server_obj_handle( handle );
if (target->MaximumLength >= sizeof(WCHAR))
wine_server_set_reply( req, target->Buffer, target->MaximumLength - sizeof(WCHAR) );
if (!(ret = wine_server_call( req )))
{
LinkTarget->Length = wine_server_reply_size(reply);
if (ReturnedLength) *ReturnedLength = LinkTarget->Length;
target->Length = wine_server_reply_size(reply);
target->Buffer[target->Length / sizeof(WCHAR)] = 0;
if (length) *length = reply->total + sizeof(WCHAR);
}
else if (length && ret == STATUS_BUFFER_TOO_SMALL) *length = reply->total + sizeof(WCHAR);
}
SERVER_END_REQ;
return ret;