wineserver: Don't use O_CREAT and O_EXCL when attempting to open directories.

dlls/kernel32/tests/file.c

@@ -783,7 +783,7 @@ static void test_CreateFileW(void)
     ok(ret == TRUE, "couldn't create temporary directory\n");
     hFile = CreateFileW(filename, GENERIC_READ | GENERIC_WRITE, 0, NULL,
 			OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS, NULL);
-    todo_wine ok(hFile != INVALID_HANDLE_VALUE,
+    ok(hFile != INVALID_HANDLE_VALUE,
        "expected CreateFile to succeed on existing directory, error: %d\n", GetLastError());
     CloseHandle(hFile);
     ret = RemoveDirectoryW(filename);

server/fd.c

@@ -1582,7 +1582,7 @@ struct fd *open_fd( const char *name, int flags, mode_t *mode, unsigned int acce
         /* if we tried to open a directory for write access, retry read-only */
         if (errno != EISDIR ||
             !(access & FILE_UNIX_WRITE_ACCESS) ||
-            (fd->unix_fd = open( name, O_RDONLY | (flags & ~O_TRUNC), *mode )) == -1)
+            (fd->unix_fd = open( name, O_RDONLY | (flags & ~(O_TRUNC | O_CREAT | O_EXCL)), *mode )) == -1)
         {
             file_set_error();
             goto error;