Line data    Source code

       1             : /*
       2             :  * hostapd / VLAN definition
       3             :  * Copyright (c) 2016, Jouni Malinen <j@w1.fi>
       4             :  *
       5             :  * This software may be distributed under the terms of the BSD license.
       6             :  * See README for more details.
       7             :  */
       8             : 
       9             : #include "utils/includes.h"
      10             : 
      11             : #include "utils/common.h"
      12             : #include "ap/vlan.h"
      13             : 
      14             : /* compare the two arguments, NULL is treated as empty
      15             :  * return zero iff they are equal
      16             :  */
      17        5487 : int vlan_compare(struct vlan_description *a, struct vlan_description *b)
      18             : {
      19             :         int i;
      20        5487 :         const int a_empty = !a || !a->notempty;
      21        5487 :         const int b_empty = !b || !b->notempty;
      22             : 
      23        5487 :         if (a_empty && b_empty)
      24        5351 :                 return 0;
      25         136 :         if (a_empty || b_empty)
      26          87 :                 return 1;
      27          49 :         if (a->untagged != b->untagged)
      28          38 :                 return 1;
      29         171 :         for (i = 0; i < MAX_NUM_TAGGED_VLAN; i++) {
      30         166 :                 if (a->tagged[i] != b->tagged[i])
      31           6 :                         return 1;
      32             :         }
      33           5 :         return 0;
      34             : }