1 /**
2 * I3cstatus prints a configurable status bar for the i3 window manager
3 * Copyright (C) 2020 Aaron Ball <nullspoon@oper.io>
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18 #include "config_net.h"
19
20 void config_net_init(struct node* n) {
21 n->data = malloc(sizeof(struct config_net));
22 n->type = CTYPE_NET;
23 n->loadfunc = &config_net_load;
24 n->loadkey = &load_net_key;
25 }
26
27
28 void load_net_key(struct node* n, char* key, char* val) {
29 struct config_net* data = (struct config_net*) n->data;
30
31 if(strcmp(key, "ifname") == 0)
32 strcpy(data->ifname, val);
33 else
34 printf("ERROR: Unknown net key %s\n", key);
35 }
36
37
38 int config_net_load(struct node* n) {
39 struct ifaddrs *addrs,*tmp;
40 char host[224] = "--";
41 strcpy(n->color, C_RED);
42
43 getifaddrs(&addrs);
44 tmp = addrs;
45
46 while (tmp) {
47 if(strcmp(tmp->ifa_name, ((struct config_net*)n->data)->ifname) == 0) {
48 // Skip if no address is present
49 if(! tmp->ifa_addr) {
50 tmp = tmp->ifa_next;
51 continue;
52 }
53
54 // Ensure sa_family is type 2 (17 doesn't have an IP)
55 if(tmp->ifa_addr->sa_family != 2) {
56 tmp = tmp->ifa_next;
57 continue;
58 }
59
60 // Get the device IP address
61 getnameinfo(
62 tmp->ifa_addr,
63 sizeof(struct sockaddr_in),
64 host,
65 NI_MAXHOST,
66 NULL,
67 0,
68 NI_NUMERICHOST);
69
70 strcpy(n->color, C_GREEN);
71 break;
72 }
73 tmp = tmp->ifa_next;
74 }
75 freeifaddrs(addrs);
76
77 strcpy(n->label_color, C_LGREY);
78 strcpy(n->text, host);
79 return 0;
80 }
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