- Protect AllocateValue against a null sp.

modified:
  storage/connect/value.cpp

storage/connect/value.cpp

@@ -446,7 +446,7 @@ PVAL AllocateValue(PGLOBAL g, PVAL valp, int newtype, int uns)
     case TYPE_STRING:
       p = (PSZ)PlugSubAlloc(g, NULL, 1 + valp->GetValLen());
 
-      if ((sp = valp->GetCharString(p)) != p)
+      if ((sp = valp->GetCharString(p)) != p && sp)
         strcpy(p, sp);
 
       vp = new(g) TYPVAL<PSZ>(g, p, valp->GetValLen(), valp->GetValPrec());
@@ -1219,7 +1219,7 @@ TYPVAL<PSZ>::TYPVAL(PSZ s) : VALUE(TYPE_STRING)
 TYPVAL<PSZ>::TYPVAL(PGLOBAL g, PSZ s, int n, int c)
            : VALUE(TYPE_STRING)
   {
-  Len = (g) ? n : strlen(s);
+  Len = (g) ? n : (s) ? strlen(s) : 0;
 
   if (!s) {
     if (g) {