1 files changed, 41 insertions, 0 deletions
diff --git a/coreutils/fsync.c b/coreutils/fsync.c
new file mode 100644
index 000000000..f00803c5b
--- /dev/null
+++ b/coreutils/fsync.c
@@ -0,0 +1,41 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini fsync implementation for busybox
+ *
+ * Copyright (C) 2008 Nokia Corporation. All rights reserved.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+#include "libbb.h"
+
+/* This is a NOFORK applet. Be very careful! */
+
+int fsync_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int fsync_main(int argc UNUSED_PARAM, char **argv)
+{
+	int status;
+	int opts;
+
+	opts = getopt32(argv, "d"); /* fdatasync */
+	argv += optind;
+	if (!*argv) {
+		bb_show_usage();
+	}
+
+	status = EXIT_SUCCESS;
+	do {
+		int fd = open3_or_warn(*argv, O_NOATIME | O_NOCTTY | O_RDONLY, 0);
+
+		if (fd == -1) {
+			status = EXIT_FAILURE;
+			continue;
+		}
+		if ((opts ? fdatasync(fd) : fsync(fd))) {
+			//status = EXIT_FAILURE; - do we want this?
+			bb_simple_perror_msg(*argv);
+		}
+		close(fd);
+	} while (*++argv);
+
+	return status;
+}