webservices: Implement WsFileTimeToDateTime.

Signed-off-by: Hans Leidekker <hans@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>

dlls/webservices/reader.c

@@ -2044,6 +2044,26 @@ HRESULT WINAPI WsDateTimeToFileTime( const WS_DATETIME *dt, FILETIME *ft, WS_ERR
     return S_OK;
 }
 
+/**************************************************************************
+ *          WsFileTimeToDateTime               [webservices.@]
+ */
+HRESULT WINAPI WsFileTimeToDateTime( const FILETIME *ft, WS_DATETIME *dt, WS_ERROR *error )
+{
+    unsigned __int64 ticks;
+
+    TRACE( "%p %p %p\n", ft, dt, error );
+    if (error) FIXME( "ignoring error parameter\n" );
+
+    if (!dt || !ft) return E_INVALIDARG;
+
+    ticks = ((unsigned __int64)ft->dwHighDateTime << 32) | ft->dwLowDateTime;
+    if (ticks > MAX_UINT64 - TICKS_1601_01_01) return WS_E_NUMERIC_OVERFLOW;
+    if (ticks + TICKS_1601_01_01 > TICKS_MAX) return WS_E_INVALID_FORMAT;
+    dt->ticks  = ticks + TICKS_1601_01_01;
+    dt->format = WS_DATETIME_FORMAT_UTC;
+    return S_OK;
+}
+
 static HRESULT read_get_node_text( struct reader *reader, WS_XML_UTF8_TEXT **ret )
 {
     WS_XML_TEXT_NODE *text;

dlls/webservices/tests/reader.c

@@ -3056,6 +3056,50 @@ static void test_WsDateTimeToFileTime(void)
     }
 }
 
+static void test_WsFileTimeToDateTime(void)
+{
+    WS_DATETIME dt;
+    FILETIME ft;
+    HRESULT hr;
+
+    hr = WsFileTimeToDateTime( NULL, NULL, NULL );
+    ok( hr == E_INVALIDARG, "got %08x\n", hr );
+
+    ft.dwLowDateTime = ft.dwHighDateTime = 0;
+    hr = WsFileTimeToDateTime( &ft, NULL, NULL );
+    ok( hr == E_INVALIDARG, "got %08x\n", hr );
+
+    hr = WsFileTimeToDateTime( NULL, &dt, NULL );
+    ok( hr == E_INVALIDARG, "got %08x\n", hr );
+
+    dt.ticks = 0xdeadbeef;
+    dt.format = 0xdeadbeef;
+    hr = WsFileTimeToDateTime( &ft, &dt, NULL );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( dt.ticks == 0x701ce1722770000, "got %x%08x\n", (ULONG)(dt.ticks >> 32), (ULONG)dt.ticks );
+    ok( dt.format == WS_DATETIME_FORMAT_UTC, "got %u\n", dt.format );
+
+    ft.dwLowDateTime  = 0xd1c03fff;
+    ft.dwHighDateTime = 0x24c85a5e;
+    hr = WsFileTimeToDateTime( &ft, &dt, NULL );
+    ok( hr == S_OK, "got %08x\n", hr );
+    ok( dt.ticks == 0x2bca2875f4373fff, "got %x%08x\n", (ULONG)(dt.ticks >> 32), (ULONG)dt.ticks );
+    ok( dt.format == WS_DATETIME_FORMAT_UTC, "got %u\n", dt.format );
+
+    ft.dwLowDateTime++;
+    hr = WsFileTimeToDateTime( &ft, &dt, NULL );
+    ok( hr == WS_E_INVALID_FORMAT, "got %08x\n", hr );
+
+    ft.dwLowDateTime  = 0xdd88ffff;
+    ft.dwHighDateTime = 0xf8fe31e8;
+    hr = WsFileTimeToDateTime( &ft, &dt, NULL );
+    ok( hr == WS_E_INVALID_FORMAT, "got %08x\n", hr );
+
+    ft.dwLowDateTime++;
+    hr = WsFileTimeToDateTime( &ft, &dt, NULL );
+    ok( hr == WS_E_NUMERIC_OVERFLOW, "got %08x\n", hr );
+}
+
 START_TEST(reader)
 {
     test_WsCreateError();
@@ -3083,4 +3127,5 @@ START_TEST(reader)
     test_WsResetHeap();
     test_datetime();
     test_WsDateTimeToFileTime();
+    test_WsFileTimeToDateTime();
 }

dlls/webservices/webservices.spec

@@ -42,7 +42,7 @@
 @ stub WsEncodeUrl
 @ stub WsEndReaderCanonicalization
 @ stub WsEndWriterCanonicalization
-@ stub WsFileTimeToDateTime
+@ stdcall WsFileTimeToDateTime(ptr ptr ptr)
 @ stub WsFillBody
 @ stdcall WsFillReader(ptr long ptr ptr)
 @ stdcall WsFindAttribute(ptr ptr ptr long ptr ptr)