df: Add --uuid option to print guest UUIDs instead of names (RHBZ#646821).

[libguestfs.git] / daemon / df.c

diff --git a/daemon/df.c b/daemon/df.c
index 73604b4..cce41a0 100644 (file)
--- a/daemon/df.c
+++ b/daemon/df.c
@@ -28,16 +28,16 @@
 #include "actions.h"
 
 char *
-do_df ()
+do_df (void)
 {
   int r;
   char *out, *err;
 
-  NEED_ROOT (NULL);
+  NEED_ROOT (0, return NULL);
 
   r = command (&out, &err, "df", NULL);
   if (r == -1) {
-    reply_with_error ("df: %s", err);
+    reply_with_error ("%s", err);
     free (out);
     free (err);
     return NULL;
@@ -49,16 +49,16 @@ do_df ()
 }
 
 char *
-do_df_h ()
+do_df_h (void)
 {
   int r;
   char *out, *err;
 
-  NEED_ROOT (NULL);
+  NEED_ROOT (0, return NULL);
 
   r = command (&out, &err, "df", "-h", NULL);
   if (r == -1) {
-    reply_with_error ("df -h: %s", err);
+    reply_with_error ("%s", err);
     free (out);
     free (err);
     return NULL;