X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=daemon%2Fzerofree.c;h=84073dd0ff8aac55d66ddb34e7560627ca01116c;hb=cb9613b993792c1c4b14fa0d9b5001ff644ac2f4;hp=457f8db05b3ccd68417421a96477696f873f6227;hpb=0c07f0d23698798475e0d09491812aca52440328;p=libguestfs.git

diff --git a/daemon/zerofree.c b/daemon/zerofree.c
index 457f8db..84073dd 100644
--- a/daemon/zerofree.c
+++ b/daemon/zerofree.c
@@ -26,16 +26,24 @@
 
 #include "daemon.h"
 #include "actions.h"
+#include "optgroups.h"
 
 int
-do_zerofree (char *device)
+optgroup_zerofree_available (void)
+{
+  int r = access ("/usr/sbin/zerofree", X_OK);
+  return r == 0;
+}
+
+int
+do_zerofree (const char *device)
 {
   char *err;
   int r;
 
   r = command (NULL, &err, "/usr/sbin/zerofree", device, NULL);
   if (r == -1) {
-    reply_with_error ("zerofree: %s: %s", device, err);
+    reply_with_error ("%s: %s", device, err);
     free (err);
     return -1;
   }