| Dmitry Shmidt | 57c2d39 | 2016-02-23 13:40:19 -0800 | [diff] [blame^] | 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 | int 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 | } |