1 files changed, 90 insertions, 0 deletions
diff --git a/tests/sys/cddl/zfs/bin/rename_dir.c b/tests/sys/cddl/zfs/bin/rename_dir.c
new file mode 100644
index 000000000000..58a7cf51a4fd
--- /dev/null
+++ b/tests/sys/cddl/zfs/bin/rename_dir.c
@@ -0,0 +1,90 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+
+/*
+ * Assertion:
+ * Create two directory trees in zfs filesystem, and rename
+ * directory across the directory structure. ZFS can handle
+ * the race situation.
+ */
+
+/*
+ * Need to create the following directory structures before
+ * running this program:
+ *
+ * mkdir -p 1/2/3/4/5 a/b/c/d/e
+ */
+
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+
+int
+main()
+{
+	int i = 1;
+	char buf[256];
+	char *msg = "rename() fails to handle race situation\n";
+
+	switch (fork()) {
+	case -1:
+		perror("fork");
+		exit(1);
+		break;
+	case 0:
+		while (i > 0) {
+			int c_count = 0;
+			if (rename("a/b/c", "1/2/3/c") == 0)
+				c_count++;
+			if (rename("1/2/3/c", "a/b/c") == 0)
+				c_count++;
+			if (c_count) {
+				(void) strlcat(buf, "c_count: %d,", 256);
+				(void) strlcat(buf, msg, 256);
+				(void) fprintf(stderr, buf, c_count);
+			}
+		}
+		break;
+	default:
+		while (i > 0) {
+			int p_count = 0;
+			if (rename("1", "a/b/c/d/e/1") == 0)
+				p_count++;
+			if (rename("a/b/c/d/e/1", "1") == 0)
+				p_count++;
+			if (p_count) {
+				(void) strlcat(buf, "p_count: %d,", 256);
+				(void) strlcat(buf, msg, 256);
+				(void) fprintf(stderr, buf, p_count);
+			}
+		}
+		break;
+	}
+	return (0);
+}