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>
9 * See file LICENSE for license information.
17 #include <sys/socket.h>
18 #include <netinet/in.h>
24 #include <sys/types.h>
30 /* socket file descriptor for general purposes */
33 cfg_t *cfg, *cfg_general;
36 * Exit upon SIGPIPE because when we have nowhere to write to, gathering
37 * system information is pointless.
40 void sigpipe(int signum) {
41 fprintf(stderr, "Received SIGPIPE, exiting\n");
46 * Checks if there is a file at the given path (expanding ~) and returns the
47 * full path if so or NULL if there is no file.
50 static char *file_exists(char *path) {
51 static glob_t globbuf;
53 char *full_path = NULL;
55 if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
58 full_path = (globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
60 if (stat(full_path, &buf) < 0)
66 int main(int argc, char *argv[]) {
69 cfg_opt_t general_opts[] = {
70 CFG_STR("output_format", "dzen2", CFGF_NONE),
71 CFG_BOOL("colors", 1, CFGF_NONE),
72 CFG_INT("interval", 1, CFGF_NONE),
76 cfg_opt_t run_watch_opts[] = {
77 CFG_STR("pidfile", NULL, CFGF_NONE),
78 CFG_STR("format", "%title: %status", CFGF_NONE),
82 cfg_opt_t wireless_opts[] = {
83 CFG_STR("format_up", "W: (%quality at %essid) %ip", CFGF_NONE),
84 CFG_STR("format_down", "W: down", CFGF_NONE),
88 cfg_opt_t ethernet_opts[] = {
89 CFG_STR("format_up", "E: %ip (%speed)", CFGF_NONE),
90 CFG_STR("format_down", "E: down", CFGF_NONE),
94 cfg_opt_t ipv6_opts[] = {
95 CFG_STR("format_up", "%ip", CFGF_NONE),
96 CFG_STR("format_down", "no IPv6", CFGF_NONE),
100 cfg_opt_t battery_opts[] = {
101 CFG_STR("format", "%status %percentage %remaining", CFGF_NONE),
102 CFG_BOOL("last_full_capacity", false, CFGF_NONE),
106 cfg_opt_t time_opts[] = {
107 CFG_STR("format", "%d.%m.%Y %H:%M:%S", CFGF_NONE),
111 cfg_opt_t load_opts[] = {
112 CFG_STR("format", "%5min %10min %15min", CFGF_NONE),
116 cfg_opt_t temp_opts[] = {
117 CFG_STR("format", "%degrees C", CFGF_NONE),
121 cfg_opt_t disk_opts[] = {
122 CFG_STR("format", "%free", CFGF_NONE),
127 CFG_STR_LIST("order", "{ipv6,\"run_watch DHCP\",\"wireless wlan0\",\"ethernet eth0\",\"battery 0\",\"cpu_temperature 0\",load,time}", CFGF_NONE),
128 CFG_SEC("general", general_opts, CFGF_NONE),
129 CFG_SEC("run_watch", run_watch_opts, CFGF_TITLE | CFGF_MULTI),
130 CFG_SEC("wireless", wireless_opts, CFGF_TITLE | CFGF_MULTI),
131 CFG_SEC("ethernet", ethernet_opts, CFGF_TITLE | CFGF_MULTI),
132 CFG_SEC("battery", battery_opts, CFGF_TITLE | CFGF_MULTI),
133 CFG_SEC("cpu_temperature", temp_opts, CFGF_TITLE | CFGF_MULTI),
134 CFG_SEC("disk", disk_opts, CFGF_TITLE | CFGF_MULTI),
135 CFG_SEC("ipv6", ipv6_opts, CFGF_NONE),
136 CFG_SEC("time", time_opts, CFGF_NONE),
137 CFG_SEC("load", load_opts, CFGF_NONE),
142 int o, option_index = 0;
143 struct option long_options[] = {
144 {"config", required_argument, 0, 'c'},
145 {"help", no_argument, 0, 'h'},
149 struct sigaction action;
150 memset(&action, 0, sizeof(struct sigaction));
151 action.sa_handler = sigpipe;
152 sigaction(SIGPIPE, &action, NULL);
154 /* Figure out which configuration file to use before the user may
155 * override this setting using -c */
157 if ((configfile = file_exists("~/.i3status.conf")) == NULL)
158 configfile = file_exists(PREFIX "/etc/i3status.conf");
160 while ((o = getopt_long(argc, argv, "c:h", long_options, &option_index)) != -1)
163 else if ((char)o == 'h') {
164 printf("i3status © 2008-2009 Michael Stapelberg\n"
165 "Syntax: %s [-c <configfile>]\n", argv[0]);
169 if (configfile == NULL)
170 die("No configuration file found\n");
172 cfg = cfg_init(opts, CFGF_NONE);
173 if (cfg_parse(cfg, configfile) == CFG_PARSE_ERROR)
176 cfg_general = cfg_getsec(cfg, "general");
177 if (cfg_general == NULL)
178 die("Could not get section \"general\"\n");
180 char *output_str = cfg_getstr(cfg_general, "output_format");
181 if (strcasecmp(output_str, "dzen2") == 0)
182 output_format = O_DZEN2;
183 else if (strcasecmp(output_str, "xmobar") == 0)
184 output_format = O_XMOBAR;
185 else if (strcasecmp(output_str, "none") == 0)
186 output_format = O_NONE;
187 else die("Unknown output format: \"%s\"\n", output_str);
189 if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
190 die("Could not create socket\n");
192 int interval = cfg_getint(cfg_general, "interval");
195 for (j = 0; j < cfg_size(cfg, "order"); j++) {
199 const char *current = cfg_getnstr(cfg, "order", j);
202 print_ipv6_info(cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
204 CASE_SEC_TITLE("wireless")
205 print_wireless_info(title, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
207 CASE_SEC_TITLE("ethernet")
208 print_eth_info(title, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
210 CASE_SEC_TITLE("battery")
211 print_battery_info(atoi(title), cfg_getstr(sec, "format"), cfg_getbool(sec, "last_full_capacity"));
213 CASE_SEC_TITLE("run_watch")
214 print_run_watch(title, cfg_getstr(sec, "pidfile"), cfg_getstr(sec, "format"));
216 CASE_SEC_TITLE("disk")
217 print_disk_info(title, cfg_getstr(sec, "format"));
220 print_load(cfg_getstr(sec, "format"));
223 print_time(cfg_getstr(sec, "format"));
225 CASE_SEC_TITLE("cpu_temperature")
226 print_cpu_temperature_info(atoi(title), cfg_getstr(sec, "format"));
231 /* To provide updates on every full second (as good as possible)
232 * we don’t use sleep(interval) but we sleep until the next
233 * second (with microsecond precision) plus (interval-1)
235 struct timeval current_time;
236 gettimeofday(¤t_time, NULL);
237 struct timespec ts = {interval - 1, (10e5 - current_time.tv_usec) * 1000};
238 nanosleep(&ts, NULL);