1 files changed, 69 insertions, 0 deletions
diff --git a/dtc/tests/dumptrees.c b/dtc/tests/dumptrees.c
new file mode 100644
index 000000000..f1e0ea970
--- /dev/null
+++ b/dtc/tests/dumptrees.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * dumptrees - utility for libfdt testing
+ *
+ * (C) Copyright David Gibson <dwg@au1.ibm.com>, IBM Corporation.  2006.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdint.h>
+
+#include <libfdt.h>
+
+#include "testdata.h"
+
+static struct {
+	void *blob;
+	const char *filename;
+} trees[] = {
+#define TREE(name)	{ &name, #name ".dtb" }
+	TREE(test_tree1),
+	TREE(bad_node_char), TREE(bad_node_format), TREE(bad_prop_char),
+	TREE(ovf_size_strings),
+	TREE(truncated_property), TREE(truncated_string),
+	TREE(truncated_memrsv),
+	TREE(two_roots),
+	TREE(named_root)
+};
+
+#define NUM_TREES	(sizeof(trees) / sizeof(trees[0]))
+
+int main(int argc, char *argv[])
+{
+	int i;
+
+	if (argc != 2) {
+	    fprintf(stderr, "Missing output directory argument\n");
+	    return 1;
+	}
+
+	if (chdir(argv[1]) != 0) {
+	    perror("chdir()");
+	    return 1;
+	}
+
+	for (i = 0; i < NUM_TREES; i++) {
+		void *blob = trees[i].blob;
+		const char *filename = trees[i].filename;
+		int size;
+		int fd;
+		int ret;
+
+		size = fdt_totalsize(blob);
+
+		printf("Tree \"%s\", %d bytes\n", filename, size);
+
+		fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666);
+		if (fd < 0)
+			perror("open()");
+
+		ret = write(fd, blob, size);
+		if (ret != size)
+			perror("write()");
+
+		close(fd);
+	}
+	exit(0);
+}