X-Git-Url: http://git.ozlabs.org/?a=blobdiff_plain;ds=sidebyside;f=pppd%2Fmd4.c;h=d943e8885f2d7872d579f92184103eaadc355793;hb=c9d9dbfb8459b528ab56bd1cf0c41460801bbfdf;hp=cda9f943d0f25fa40d4597c19401e2ee027e8fc4;hpb=e28f47d5e53abe7317d9a82703bbbee044482d4f;p=ppp.git

diff --git a/pppd/md4.c b/pppd/md4.c
index cda9f94..d943e88 100644
--- a/pppd/md4.c
+++ b/pppd/md4.c
@@ -249,7 +249,8 @@ unsigned int count;
     byte = count >> 3;
     bit =  count & 7;
     /* Copy X into XX since we need to modify it */
-    for (i=0;i<=byte;i++)   XX[i] = X[i];
+    if (count)
+      for (i=0;i<=byte;i++) XX[i] = X[i];
     for (i=byte+1;i<64;i++) XX[i] = 0;
     /* Add padding '1' bit and low-order zeros in last byte */
     mask = 1 << (7 - bit);