1 files changed, 63 insertions, 0 deletions
diff --git a/src/dtc/tests/node_offset_by_phandle.c b/src/dtc/tests/node_offset_by_phandle.c
new file mode 100644
index 0000000..becff0f
--- /dev/null
+++ b/src/dtc/tests/node_offset_by_phandle.c
@@ -0,0 +1,63 @@
+/*
+ * libfdt - Flat Device Tree manipulation
+ *	Testcase for fdt_node_offset_by_phandle()
+ * Copyright (C) 2006 David Gibson, IBM Corporation.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdarg.h>
+
+#include <libfdt.h>
+
+#include "tests.h"
+#include "testdata.h"
+
+static void check_search(void *fdt, uint32_t phandle, int target)
+{
+	int offset;
+
+	offset = fdt_node_offset_by_phandle(fdt, phandle);
+
+	if (offset != target)
+		FAIL("fdt_node_offset_by_phandle(0x%x) returns %d "
+		     "instead of %d", phandle, offset, target);
+}
+
+int main(int argc, char *argv[])
+{
+	void *fdt;
+	int subnode2_offset, subsubnode2_offset;
+
+	test_init(argc, argv);
+	fdt = load_blob_arg(argc, argv);
+
+	subnode2_offset = fdt_path_offset(fdt, "/subnode@2");
+	subsubnode2_offset = fdt_path_offset(fdt, "/subnode@2/subsubnode@0");
+
+	if ((subnode2_offset < 0) || (subsubnode2_offset < 0))
+		FAIL("Can't find required nodes");
+
+	check_search(fdt, PHANDLE_1, subnode2_offset);
+	check_search(fdt, PHANDLE_2, subsubnode2_offset);
+	check_search(fdt, ~PHANDLE_1, -FDT_ERR_NOTFOUND);
+	check_search(fdt, 0, -FDT_ERR_BADPHANDLE);
+	check_search(fdt, -1, -FDT_ERR_BADPHANDLE);
+
+	PASS();
+}