1 files changed, 120 insertions, 0 deletions
diff --git a/lib/libc/sys/t_fsync.c b/lib/libc/sys/t_fsync.c
new file mode 100644
index 000000000000..e61ea7ef3aa6
--- /dev/null
+++ b/lib/libc/sys/t_fsync.c
@@ -0,0 +1,120 @@
+/* $NetBSD: t_fsync.c,v 1.2 2012/03/18 07:00:52 jruoho Exp $ */
+
+/*-
+ * Copyright (c) 2011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jukka Ruohonen.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <sys/cdefs.h>
+__RCSID("$NetBSD: t_fsync.c,v 1.2 2012/03/18 07:00:52 jruoho Exp $");
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <atf-c.h>
+
+ATF_TC(fsync_err);
+ATF_TC_HEAD(fsync_err, tc)
+{
+	atf_tc_set_md_var(tc, "descr",
+	    "Test error conditions of fsync(2) (PR kern/30)");
+}
+
+ATF_TC_BODY(fsync_err, tc)
+{
+	int i, fd[2];
+
+	/*
+	 * The fsync(2) call should fail with EBADF
+	 * when the 'fd' is not a valid descriptor.
+	 */
+	for (i = 1; i < 1024; i = i + 128) {
+
+		errno = 0;
+
+		ATF_REQUIRE(fsync(-i) == -1);
+		ATF_REQUIRE(errno == EBADF);
+	}
+
+	/*
+	 * On the other hand, EINVAL should follow
+	 * if the operation is not possible with
+	 * the file descriptor.
+	 */
+	ATF_REQUIRE(pipe(fd) == 0);
+
+	errno = 0;
+
+	ATF_REQUIRE(fsync(fd[0]) == -1);
+	ATF_REQUIRE(errno == EINVAL);
+
+	errno = 0;
+
+	ATF_REQUIRE(fsync(fd[1]) == -1);
+	ATF_REQUIRE(errno == EINVAL);
+
+	ATF_REQUIRE(close(fd[0]) == 0);
+	ATF_REQUIRE(close(fd[1]) == 0);
+}
+
+ATF_TC(fsync_sync);
+ATF_TC_HEAD(fsync_sync, tc)
+{
+	atf_tc_set_md_var(tc, "descr", "A basic test of fsync(2)");
+}
+
+ATF_TC_BODY(fsync_sync, tc)
+{
+	char buf[128];
+	int fd, i;
+
+	for (i = 0; i < 10; i++) {
+
+		(void)snprintf(buf, sizeof(buf), "t_fsync-%d", i);
+
+		fd = mkstemp(buf);
+
+		ATF_REQUIRE(fd != -1);
+		ATF_REQUIRE(write(fd, "0", 1) == 1);
+		ATF_REQUIRE(fsync(fd) == 0);
+
+		ATF_REQUIRE(unlink(buf) == 0);
+		ATF_REQUIRE(close(fd) == 0);
+	}
+}
+
+ATF_TP_ADD_TCS(tp)
+{
+
+	ATF_TP_ADD_TC(tp, fsync_err);
+	ATF_TP_ADD_TC(tp, fsync_sync);
+
+	return atf_no_error();
+}