4 * i3status – Generates a status line for dzen2 or xmobar
6 * Copyright © 2008-2009 Michael Stapelberg and contributors
7 * Copyright © 2009 Thorsten Toepper <atsutane at freethoughts dot de>
8 * Copyright © 2010 Axel Wagner <mail at merovius dot de>
10 * See file LICENSE for license information.
18 #include <sys/socket.h>
19 #include <netinet/in.h>
25 #include <sys/types.h>
31 /* socket file descriptor for general purposes */
34 cfg_t *cfg, *cfg_general;
37 * Exit upon SIGPIPE because when we have nowhere to write to, gathering
38 * system information is pointless.
41 void sigpipe(int signum) {
42 fprintf(stderr, "Received SIGPIPE, exiting\n");
47 * Checks if there is a file at the given path (expanding ~) and returns the
48 * full path if so or NULL if there is no file.
51 static char *file_exists(char *path) {
52 static glob_t globbuf;
54 char *full_path = NULL;
56 if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
59 full_path = (globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
61 if (stat(full_path, &buf) < 0)
67 int main(int argc, char *argv[]) {
70 cfg_opt_t general_opts[] = {
71 CFG_STR("output_format", "dzen2", CFGF_NONE),
72 CFG_BOOL("colors", 1, CFGF_NONE),
73 CFG_INT("interval", 1, CFGF_NONE),
77 cfg_opt_t run_watch_opts[] = {
78 CFG_STR("pidfile", NULL, CFGF_NONE),
79 CFG_STR("format", "%title: %status", CFGF_NONE),
83 cfg_opt_t wireless_opts[] = {
84 CFG_STR("format_up", "W: (%quality at %essid) %ip", CFGF_NONE),
85 CFG_STR("format_down", "W: down", CFGF_NONE),
89 cfg_opt_t ethernet_opts[] = {
90 CFG_STR("format_up", "E: %ip (%speed)", CFGF_NONE),
91 CFG_STR("format_down", "E: down", CFGF_NONE),
95 cfg_opt_t ipv6_opts[] = {
96 CFG_STR("format_up", "%ip", CFGF_NONE),
97 CFG_STR("format_down", "no IPv6", CFGF_NONE),
101 cfg_opt_t battery_opts[] = {
102 CFG_STR("format", "%status %percentage %remaining", CFGF_NONE),
103 CFG_BOOL("last_full_capacity", false, CFGF_NONE),
107 cfg_opt_t time_opts[] = {
108 CFG_STR("format", "%d.%m.%Y %H:%M:%S", CFGF_NONE),
112 cfg_opt_t ddate_opts[] = {
113 CFG_STR("format", "%{%a, %b %d%}, %Y%N - %H", CFGF_NONE),
117 cfg_opt_t load_opts[] = {
118 CFG_STR("format", "%5min %10min %15min", CFGF_NONE),
122 cfg_opt_t temp_opts[] = {
123 CFG_STR("format", "%degrees C", CFGF_NONE),
127 cfg_opt_t disk_opts[] = {
128 CFG_STR("format", "%free", CFGF_NONE),
133 CFG_STR_LIST("order", "{ipv6,\"run_watch DHCP\",\"wireless wlan0\",\"ethernet eth0\",\"battery 0\",\"cpu_temperature 0\",load,time}", CFGF_NONE),
134 CFG_SEC("general", general_opts, CFGF_NONE),
135 CFG_SEC("run_watch", run_watch_opts, CFGF_TITLE | CFGF_MULTI),
136 CFG_SEC("wireless", wireless_opts, CFGF_TITLE | CFGF_MULTI),
137 CFG_SEC("ethernet", ethernet_opts, CFGF_TITLE | CFGF_MULTI),
138 CFG_SEC("battery", battery_opts, CFGF_TITLE | CFGF_MULTI),
139 CFG_SEC("cpu_temperature", temp_opts, CFGF_TITLE | CFGF_MULTI),
140 CFG_SEC("disk", disk_opts, CFGF_TITLE | CFGF_MULTI),
141 CFG_SEC("ipv6", ipv6_opts, CFGF_NONE),
142 CFG_SEC("time", time_opts, CFGF_NONE),
143 CFG_SEC("ddate", ddate_opts, CFGF_NONE),
144 CFG_SEC("load", load_opts, CFGF_NONE),
149 int o, option_index = 0;
150 struct option long_options[] = {
151 {"config", required_argument, 0, 'c'},
152 {"help", no_argument, 0, 'h'},
156 struct sigaction action;
157 memset(&action, 0, sizeof(struct sigaction));
158 action.sa_handler = sigpipe;
159 sigaction(SIGPIPE, &action, NULL);
161 /* Figure out which configuration file to use before the user may
162 * override this setting using -c */
164 if ((configfile = file_exists("~/.i3status.conf")) == NULL)
165 configfile = file_exists(PREFIX "/etc/i3status.conf");
167 while ((o = getopt_long(argc, argv, "c:h", long_options, &option_index)) != -1)
170 else if ((char)o == 'h') {
171 printf("i3status © 2008-2009 Michael Stapelberg\n"
172 "Syntax: %s [-c <configfile>]\n", argv[0]);
176 if (configfile == NULL)
177 die("No configuration file found\n");
179 cfg = cfg_init(opts, CFGF_NONE);
180 if (cfg_parse(cfg, configfile) == CFG_PARSE_ERROR)
183 cfg_general = cfg_getsec(cfg, "general");
184 if (cfg_general == NULL)
185 die("Could not get section \"general\"\n");
187 char *output_str = cfg_getstr(cfg_general, "output_format");
188 if (strcasecmp(output_str, "dzen2") == 0)
189 output_format = O_DZEN2;
190 else if (strcasecmp(output_str, "xmobar") == 0)
191 output_format = O_XMOBAR;
192 else if (strcasecmp(output_str, "none") == 0)
193 output_format = O_NONE;
194 else die("Unknown output format: \"%s\"\n", output_str);
196 if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
197 die("Could not create socket\n");
199 int interval = cfg_getint(cfg_general, "interval");
202 for (j = 0; j < cfg_size(cfg, "order"); j++) {
206 const char *current = cfg_getnstr(cfg, "order", j);
209 print_ipv6_info(cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
211 CASE_SEC_TITLE("wireless")
212 print_wireless_info(title, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
214 CASE_SEC_TITLE("ethernet")
215 print_eth_info(title, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
217 CASE_SEC_TITLE("battery")
218 print_battery_info(atoi(title), cfg_getstr(sec, "format"), cfg_getbool(sec, "last_full_capacity"));
220 CASE_SEC_TITLE("run_watch")
221 print_run_watch(title, cfg_getstr(sec, "pidfile"), cfg_getstr(sec, "format"));
223 CASE_SEC_TITLE("disk")
224 print_disk_info(title, cfg_getstr(sec, "format"));
227 print_load(cfg_getstr(sec, "format"));
230 print_time(cfg_getstr(sec, "format"));
233 print_ddate(cfg_getstr(sec, "format"));
235 CASE_SEC_TITLE("cpu_temperature")
236 print_cpu_temperature_info(atoi(title), cfg_getstr(sec, "format"));
241 /* To provide updates on every full second (as good as possible)
242 * we don’t use sleep(interval) but we sleep until the next
243 * second (with microsecond precision) plus (interval-1)
245 struct timeval current_time;
246 gettimeofday(¤t_time, NULL);
247 struct timespec ts = {interval - 1, (10e5 - current_time.tv_usec) * 1000};
248 nanosleep(&ts, NULL);