patch mdb_var_alloc

@@ -36,11 +36,11 @@
 #define NV_NAME(v) \
         (((v)->v_flags & MDB_NV_EXTNAME) ? (v)->v_ename : (v)->v_lname)
 
 #define NV_SIZE(v) \
         (((v)->v_flags & MDB_NV_EXTNAME) ? sizeof (mdb_var_t) : \
-        sizeof (mdb_var_t) + MDB_NV_NAMELEN - 1)
+        sizeof (mdb_var_t) + strlen((v)->v_lname))
 
 #define NV_HASHSZ       211
 
 static size_t
 nv_hashstring(const char *key)

@@ -64,24 +64,28 @@
 
 static mdb_var_t *
 nv_var_alloc(const char *name, const mdb_nv_disc_t *disc,
         uintmax_t value, uint_t flags, uint_t um_flags, mdb_var_t *next)
 {
-        size_t nbytes = (flags & MDB_NV_EXTNAME) ? sizeof (mdb_var_t) :
-            (sizeof (mdb_var_t) + MDB_NV_NAMELEN - 1);
+        size_t nbytes;
+        mdb_var_t *v;
+
+        if (flags & MDB_NV_EXTNAME)
+                nbytes = sizeof (mdb_var_t);
+        else
+                nbytes = sizeof (mdb_var_t) + strlen(name);
 
-        mdb_var_t *v = mdb_alloc(nbytes, um_flags);
+        v = mdb_alloc(nbytes, um_flags);
 
         if (v == NULL)
                 return (NULL);
 
         if (flags & MDB_NV_EXTNAME) {
                 v->v_ename = name;
-                v->v_lname[0] = 0;
+                v->v_lname[0] = '\0';
         } else {
-                (void) strncpy(v->v_lname, name, MDB_NV_NAMELEN - 1);
-                v->v_lname[MDB_NV_NAMELEN - 1] = '\0';
+                strcpy(v->v_lname, name);
                 v->v_ename = NULL;
         }
 
         v->v_uvalue = value;
         v->v_flags = flags & ~(MDB_NV_SILENT | MDB_NV_INTERPOS);