[greatlrd] 16586: did forget check malloc and realloc was NULL and set size to zero. thx w3seek that did see this mistake

did forget check malloc and realloc was NULL and set size to zero. thx
w3seek that did see this mistake
Modified: trunk/reactos/subsys/system/cmd/copy.c
  _____
Modified: trunk/reactos/subsys/system/cmd/copy.c
--- trunk/reactos/subsys/system/cmd/copy.c      2005-07-15 17:46:26 UTC
(rev 16585)
+++ trunk/reactos/subsys/system/cmd/copy.c      2005-07-15 18:18:40 UTC
(rev 16586)
@@ -275,15 +275,22 @@
   /* Get the envor value if it exists */
   evar = malloc(512);
-  size = GetEnvironmentVariable (_T("COPYCMD"), evar, 512);
-  if (size > 512)
+  if (evar==NULL) size = 0;
+
+  size = GetEnvironmentVariable (_T("COPYCMD"), evar, 512);
+  if ((size > 1) && (size > 512))
   {
     evar = realloc(evar,size * sizeof(TCHAR) );
     if (evar!=NULL)
     {
       size = GetEnvironmentVariable (_T("COPYCMD"), evar, size);
       }
+    else
+    {
+      size=0;
+    }
   }
+
   /* check see if we did get any env variable */
   if (size !=0)
   {