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 */ vlan_compare(struct vlan_description * a,struct vlan_description * b)17int vlan_compare(struct vlan_description *a, struct vlan_description *b) 18 { 19 int i; 20 const int a_empty = !a || !a->notempty; 21 const int b_empty = !b || !b->notempty; 22 23 if (a_empty && b_empty) 24 return 0; 25 if (a_empty || b_empty) 26 return 1; 27 if (a->untagged != b->untagged) 28 return 1; 29 for (i = 0; i < MAX_NUM_TAGGED_VLAN; i++) { 30 if (a->tagged[i] != b->tagged[i]) 31 return 1; 32 } 33 return 0; 34 } 35