* grub-core/kern/misc.c (grub_vprintf): Use va_copy when necessary.

(grub_xvasprintf): Likewise.

ChangeLog

@@ -1,3 +1,8 @@
+2010-09-12  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* grub-core/kern/misc.c (grub_vprintf): Use va_copy when necessary.
+	(grub_xvasprintf): Likewise.
+
 2010-09-12  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* grub-core/kern/emu/main.c (main): Call hostfs_init only after init_all.

grub-core/kern/misc.c

@@ -196,6 +196,8 @@ grub_vprintf (const char *fmt, va_list args)
   grub_size_t s;
   static char buf[PREALLOC_SIZE + 1];
   char *curbuf = buf;
+  va_list ap2;
+  va_copy (ap2, args);
 
   s = grub_vsnprintf_real (buf, PREALLOC_SIZE, fmt, args);
   if (s > PREALLOC_SIZE)
@@ -210,7 +212,7 @@ grub_vprintf (const char *fmt, va_list args)
 	  buf[PREALLOC_SIZE] = 0;
 	}
       else
-	s = grub_vsnprintf_real (curbuf, s, fmt, args);
+	s = grub_vsnprintf_real (curbuf, s, fmt, ap2);
     }
 
   grub_xputs (curbuf);
@@ -947,11 +949,13 @@ grub_xvasprintf (const char *fmt, va_list ap)
 
   while (1)
     {
+      va_list ap2;
+      va_copy (ap2, ap);
       ret = grub_malloc (as + 1);
       if (!ret)
 	return NULL;
 
-      s = grub_vsnprintf_real (ret, as, fmt, ap);
+      s = grub_vsnprintf_real (ret, as, fmt, ap2);
       if (s <= as)
 	return ret;