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[oweals/busybox.git] / util-linux / fdflush.c

diff --git a/util-linux/fdflush.c b/util-linux/fdflush.c
index a15e9b3f7f8fd24098fffcf55db85ef7e92cd844..c3fcf3325c3e1fc08293a2a71dd57d99f1e70b7e 100644 (file)
--- a/util-linux/fdflush.c
+++ b/util-linux/fdflush.c
@@ -1,36 +1,54 @@
-#include "internal.h"
+/* vi: set sw=4 ts=4: */
+/*
+ * Mini fdflush implementation for busybox
+ *
+ * Copyright (C) 1995, 1996 by Bruce Perens <bruce@perens.com>.
+ * Copyright (C) 2003 by Erik Andersen <andersen@codeoet.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <stdio.h>
 #include <sys/ioctl.h>
-#include <linux/fd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
 #include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "busybox.h"
 
-const char                     fdflush_usage[] = "fdflush device";
+/* From <linux/fd.h> */
+#define FDFLUSH  _IO(2,0x4b)
 
-int 
-fdflush(const char *filename) 
+extern int fdflush_main(int argc, char **argv)
 {
-       int     status;
-       int     fd = open(filename, 0);
+       int fd, result;
 
-       if ( fd < 0 ) {
-               name_and_error(filename);
-               return 1;
-       }
+       if (argc <= 1)
+               bb_show_usage();
 
-       status = ioctl(fd, FDFLUSH, 0);
-       close(fd);
+       fd = bb_xopen(argv[1], 0);
 
-       if ( status != 0 ) {
-               name_and_error(filename);
-               return 1;
+       result = ioctl(fd, FDFLUSH, 0);
+#ifdef CONFIG_FEATURE_CLEAN_UP
+       close(fd);
+#endif
+       if (result) {
+               bb_perror_nomsg_and_die();
        }
-       return 0;
-}
-
 
-int
-fdflush_fn(const struct FileInfo * i)
-{
-  return fdflush(i->source);
+       /* Don't bother closing.  Exit does
+        * that, so we can save a few bytes */
+       return EXIT_SUCCESS;
 }