--- nessus-core/nessus/auth.c	2007-08-31 23:12:36.000000000 +0200
+++ nessus-core/nessus/auth.c	2007-08-31 23:12:52.000000000 +0200
@@ -92,11 +92,11 @@
   char * buffer = emalloc(s);
   int len, n = 0;
   signal(SIGPIPE, sighand_pipe);
-  va_start(param, data);
 
  
   for(;;)
   {
+   va_start(param, data);
    r = vsnprintf(buffer, s - 1, data, param);
    if(r >= 0 && r < s)break;
    s = r > s ? r + 2 : s * 2;