Add fsync(8). This becomes useful with the advent of MAP_NOSYNC etc.

Reviewed by:	peter

1 files changed, 62 insertions, 0 deletions

diff --git a/usr.bin/fsync/fsync.c b/usr.bin/fsync/fsync.c
new file mode 100644
index 0000000..e9a115f
--- /dev/null
+++ b/usr.bin/fsync/fsync.c
@@ -0,0 +1,62 @@
+/*-
+ * Copyright (c) 2000 Paul Saab <ps@FreeBSD.org>
+ * All rights reserved.
+ *
+ * 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 REGENTS 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 REGENTS 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.
+ *
+ * $FreeBSD$
+ */
+
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+void	usage(void);
+
+int
+main(int argc, char *argv[])
+{
+	int fd;
+	int i;
+	
+	if (argc < 2)
+		usage();
+	
+	for (i = 1; i < argc; ++i) {
+		if ((fd = open(argv[i], O_RDONLY)) < 0)
+			err(1, "open %s", argv[i]);
+
+		if (fsync(fd) != 0)
+			err(1, "fsync %s", argv[1]);
+		close(fd);
+	}
+	return(0);
+}
+
+void
+usage()
+{
+	fprintf(stderr, "usaged: fsync file ...\n");
+	exit(EX_USAGE);
+}