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>
9 * Copyright © 2010 Fernando Tarlá Cardoso Lemos <fernandotcl at gmail dot com>
11 * See file LICENSE for license information.
19 #include <sys/socket.h>
20 #include <netinet/in.h>
26 #include <sys/types.h>
32 /* socket file descriptor for general purposes */
35 cfg_t *cfg, *cfg_general;
38 * Exit upon SIGPIPE because when we have nowhere to write to, gathering
39 * system information is pointless.
42 void sigpipe(int signum) {
43 fprintf(stderr, "Received SIGPIPE, exiting\n");
48 * Checks if there is a file at the given path (expanding ~) and returns the
49 * full path if so or NULL if there is no file.
52 static char *file_exists(char *path) {
53 static glob_t globbuf;
55 char *full_path = NULL;
57 if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
60 full_path = (globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
62 if (stat(full_path, &buf) < 0)
68 int main(int argc, char *argv[]) {
71 cfg_opt_t general_opts[] = {
72 CFG_STR("output_format", "dzen2", CFGF_NONE),
73 CFG_BOOL("colors", 1, CFGF_NONE),
74 CFG_INT("interval", 1, CFGF_NONE),
78 cfg_opt_t run_watch_opts[] = {
79 CFG_STR("pidfile", NULL, CFGF_NONE),
80 CFG_STR("format", "%title: %status", CFGF_NONE),
84 cfg_opt_t wireless_opts[] = {
85 CFG_STR("format_up", "W: (%quality at %essid) %ip", CFGF_NONE),
86 CFG_STR("format_down", "W: down", CFGF_NONE),
90 cfg_opt_t ethernet_opts[] = {
91 CFG_STR("format_up", "E: %ip (%speed)", CFGF_NONE),
92 CFG_STR("format_down", "E: down", CFGF_NONE),
96 cfg_opt_t ipv6_opts[] = {
97 CFG_STR("format_up", "%ip", CFGF_NONE),
98 CFG_STR("format_down", "no IPv6", CFGF_NONE),
102 cfg_opt_t battery_opts[] = {
103 CFG_STR("format", "%status %percentage %remaining", CFGF_NONE),
104 CFG_BOOL("last_full_capacity", false, CFGF_NONE),
108 cfg_opt_t time_opts[] = {
109 CFG_STR("format", "%d.%m.%Y %H:%M:%S", CFGF_NONE),
113 cfg_opt_t ddate_opts[] = {
114 CFG_STR("format", "%{%a, %b %d%}, %Y%N - %H", CFGF_NONE),
118 cfg_opt_t load_opts[] = {
119 CFG_STR("format", "%5min %10min %15min", CFGF_NONE),
123 cfg_opt_t temp_opts[] = {
124 CFG_STR("format", "%degrees C", CFGF_NONE),
128 cfg_opt_t disk_opts[] = {
129 CFG_STR("format", "%free", CFGF_NONE),
134 CFG_STR_LIST("order", "{ipv6,\"run_watch DHCP\",\"wireless wlan0\",\"ethernet eth0\",\"battery 0\",\"cpu_temperature 0\",load,time}", CFGF_NONE),
135 CFG_SEC("general", general_opts, CFGF_NONE),
136 CFG_SEC("run_watch", run_watch_opts, CFGF_TITLE | CFGF_MULTI),
137 CFG_SEC("wireless", wireless_opts, CFGF_TITLE | CFGF_MULTI),
138 CFG_SEC("ethernet", ethernet_opts, CFGF_TITLE | CFGF_MULTI),
139 CFG_SEC("battery", battery_opts, CFGF_TITLE | CFGF_MULTI),
140 CFG_SEC("cpu_temperature", temp_opts, CFGF_TITLE | CFGF_MULTI),
141 CFG_SEC("disk", disk_opts, CFGF_TITLE | CFGF_MULTI),
142 CFG_SEC("ipv6", ipv6_opts, CFGF_NONE),
143 CFG_SEC("time", time_opts, CFGF_NONE),
144 CFG_SEC("ddate", ddate_opts, CFGF_NONE),
145 CFG_SEC("load", load_opts, CFGF_NONE),
150 int o, option_index = 0;
151 struct option long_options[] = {
152 {"config", required_argument, 0, 'c'},
153 {"help", no_argument, 0, 'h'},
157 struct sigaction action;
158 memset(&action, 0, sizeof(struct sigaction));
159 action.sa_handler = sigpipe;
160 sigaction(SIGPIPE, &action, NULL);
162 /* Figure out which configuration file to use before the user may
163 * override this setting using -c */
165 if ((configfile = file_exists("~/.i3status.conf")) == NULL)
166 configfile = file_exists(PREFIX "/etc/i3status.conf");
168 while ((o = getopt_long(argc, argv, "c:h", long_options, &option_index)) != -1)
171 else if ((char)o == 'h') {
172 printf("i3status © 2008-2009 Michael Stapelberg\n"
173 "Syntax: %s [-c <configfile>]\n", argv[0]);
177 if (configfile == NULL)
178 die("No configuration file found\n");
180 cfg = cfg_init(opts, CFGF_NONE);
181 if (cfg_parse(cfg, configfile) == CFG_PARSE_ERROR)
184 cfg_general = cfg_getsec(cfg, "general");
185 if (cfg_general == NULL)
186 die("Could not get section \"general\"\n");
188 char *output_str = cfg_getstr(cfg_general, "output_format");
189 if (strcasecmp(output_str, "dzen2") == 0)
190 output_format = O_DZEN2;
191 else if (strcasecmp(output_str, "xmobar") == 0)
192 output_format = O_XMOBAR;
193 else if (strcasecmp(output_str, "none") == 0)
194 output_format = O_NONE;
195 else die("Unknown output format: \"%s\"\n", output_str);
197 if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
198 die("Could not create socket\n");
200 int interval = cfg_getint(cfg_general, "interval");
203 for (j = 0; j < cfg_size(cfg, "order"); j++) {
207 const char *current = cfg_getnstr(cfg, "order", j);
210 print_ipv6_info(cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
212 CASE_SEC_TITLE("wireless")
213 print_wireless_info(title, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
215 CASE_SEC_TITLE("ethernet")
216 print_eth_info(title, cfg_getstr(sec, "format_up"), cfg_getstr(sec, "format_down"));
218 CASE_SEC_TITLE("battery")
219 print_battery_info(atoi(title), cfg_getstr(sec, "format"), cfg_getbool(sec, "last_full_capacity"));
221 CASE_SEC_TITLE("run_watch")
222 print_run_watch(title, cfg_getstr(sec, "pidfile"), cfg_getstr(sec, "format"));
224 CASE_SEC_TITLE("disk")
225 print_disk_info(title, cfg_getstr(sec, "format"));
228 print_load(cfg_getstr(sec, "format"));
231 print_time(cfg_getstr(sec, "format"));
234 print_ddate(cfg_getstr(sec, "format"));
236 CASE_SEC_TITLE("cpu_temperature")
237 print_cpu_temperature_info(atoi(title), cfg_getstr(sec, "format"));
242 /* To provide updates on every full second (as good as possible)
243 * we don’t use sleep(interval) but we sleep until the next
244 * second (with microsecond precision) plus (interval-1)
246 struct timeval current_time;
247 gettimeofday(¤t_time, NULL);
248 struct timespec ts = {interval - 1, (10e5 - current_time.tv_usec) * 1000};
249 nanosleep(&ts, NULL);