Make cp and mv optionally preserve hard links.

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

diff --git a/util-linux/freeramdisk.c b/util-linux/freeramdisk.c
index 567151455470e00ee6e49f7dcbfe2c2d9d930b1e..aabb5f98827641ed79ef3c6fa890f6a338c4158b 100644 (file)
--- a/util-linux/freeramdisk.c
+++ b/util-linux/freeramdisk.c
@@ -27,6 +27,7 @@
 #include <fcntl.h>
 #include <sys/ioctl.h>
 #include <errno.h>
+#include <stdlib.h>
 #include "busybox.h"
 
 
@@ -36,17 +37,16 @@
 extern int
 freeramdisk_main(int argc, char **argv)
 {
-       int   f;
+       FILE *f;
 
        if (argc != 2 || *argv[1] == '-') {
-               usage(freeramdisk_usage);
+               show_usage();
        }
 
-       if ((f = open(argv[1], O_RDWR)) == -1) {
-               fatalError( "cannot open %s: %s\n", argv[1], strerror(errno));
-       }
-       if (ioctl(f, BLKFLSBUF) < 0) {
-               fatalError( "failed ioctl on %s: %s\n", argv[1], strerror(errno));
+       f = xfopen(argv[1], "r+");
+       
+       if (ioctl(fileno(f), BLKFLSBUF) < 0) {
+               perror_msg_and_die("failed ioctl on %s", argv[1]);
        }
        /* Don't bother closing.  Exit does
         * that, so we can save a few bytes */