mdadm-0.7mdadm-0.7

1 files changed, 83 insertions, 0 deletions

diff --git a/Kill.c b/Kill.c
new file mode 100644
index 0000000..a57bdf8
--- /dev/null
+++ b/Kill.c
@@ -0,0 +1,83 @@
+/*
+ * mdadm - manage Linux "md" devices aka RAID arrays.
+ *
+ * Copyright (C) 2001-2002 Neil Brown <neilb@cse.unsw.edu.au>
+ *
+ *
+ *    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
+ *
+ *    Author: Neil Brown
+ *    Email: <neilb@cse.unsw.edu.au>
+ *    Paper: Neil Brown
+ *           School of Computer Science and Engineering
+ *           The University of New South Wales
+ *           Sydney, 2052
+ *           Australia
+ *
+ *    Added by Dale Stephenson
+ *    steph@snapserver.com
+ */
+
+#include	"mdadm.h"
+#include	"md_u.h"
+#include	"md_p.h"
+
+int Kill(char *dev, int force)
+{
+	/*
+	 * Nothing fancy about Kill.  It just zeroes out a superblock
+	 * Definitely not safe.
+	 */
+
+	mdp_super_t super;
+	int fd, rv = 0;
+		
+	fd = open(dev, O_RDWR);
+	if (fd < 0) {
+		fprintf(stderr, Name ": Couldn't open %s for write - not zeroing\n",
+			dev);
+		return 1;
+	} 
+	rv = load_super(fd, &super);
+	if (force && rv >= 5)
+		rv = 0; /* ignore bad data in superblock */
+	switch(rv) {
+	case 1:
+		fprintf(stderr, Name ": cannot file device size for %s: %s\n",
+			dev, strerror(errno));
+		break;
+	case 2:
+		fprintf(stderr, Name ": %s is too small for md.\n", dev);
+		break;
+	case 3:
+	case 4:
+		fprintf(stderr, Name ": cannot access superblock on %s.\n", dev);
+		break;
+	case 5:
+	case 6:
+		fprintf(stderr, Name ": %s does not appear to have an MD superblock.\n", dev);
+		break;
+	}
+	if (!rv) {
+		memset(&super, 0, sizeof(super));
+		if (store_super(fd, &super)) {
+			fprintf(stderr, Name ": Could not zero superblock on %s\n",
+				dev);
+			rv = 1;
+		}
+	}
+	close(fd);
+	return rv;
+}