X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=daemon%2Fgrub.c;h=86e812e9a49c725936f8e6853c0b88d3b61ae90e;hb=4610db9f1b77f8c263b348fda1974be165a7f841;hp=3b1768f23a9b2947f3638b8d7ab8921240fe6a3b;hpb=78029b529ad98769685d607230b70f71832d5906;p=libguestfs.git

diff --git a/daemon/grub.c b/daemon/grub.c
index 3b1768f..86e812e 100644
--- a/daemon/grub.c
+++ b/daemon/grub.c
@@ -28,7 +28,7 @@
 int
 do_grub_install (char *root, char *device)
 {
-  int r, len;
+  int r;
   char *err;
   char *buf;
 
@@ -36,13 +36,10 @@ do_grub_install (char *root, char *device)
   ABS_PATH (root, -1);
   IS_DEVICE (device, -1);
 
-  len = strlen (root) + sysroot_len + 64;
-  buf = malloc (len);
-  if (!buf) {
-    reply_with_perror ("malloc");
+  if (asprintf_nowarn (&buf, "--root-directory=%R", root) == -1) {
+    reply_with_perror ("asprintf");
     return -1;
   }
-  snprintf (buf, len, "--root-directory=%s%s", sysroot, root);
 
   r = command (NULL, &err, "/sbin/grub-install", buf, device, NULL);
   free (buf);