NEW API: add a new api wipefs

Add the new api wipefs to erase the filesystem signatures
on a device but now erase any data.

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/daemon/zero.c b/daemon/zero.c
index 398f8440..00badd23 100644
--- a/daemon/zero.c
+++ b/daemon/zero.c
@@ -73,6 +73,30 @@ do_zero (const char *device)
 }
 
 int
+optgroup_wipefs_available (void)
+{
+  return prog_exists ("wipefs");
+}
+
+int
+do_wipefs (const char *device)
+{
+  int r;
+  char *err = NULL;
+
+  const char *wipefs[] = {"wipefs", "-a", device, NULL};
+  r = commandv (NULL, &err, wipefs);
+  if (r == -1) {
+    reply_with_error ("%s", err);
+    free (err);
+    return -1;
+  }
+
+  free (err);
+  return 0;
+}
+
+int
 do_zero_device (const char *device)
 {
   int64_t ssize = do_blockdev_getsize64 (device);