git.sur5r.net Git - i3/i3status/blob - i3status.c

   1 /*
   2  * vim:ts=8:expandtab
   3  *
   4  * i3status – Generates a status line for dzen2 or wmii
   5  *
   6  *
   7  * Copyright © 2008-2009 Michael Stapelberg and contributors
   8  * Copyright © 2009 Thorsten Toepper <atsutane at freethoughts dot de>
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without modification,
  12  * are permitted provided that the following conditions are met:
  13  *
  14  * * Redistributions of source code must retain the above copyright notice, this
  15  *   list of conditions and the following disclaimer.
  16  *
  17  * * Redistributions in binary form must reproduce the above copyright notice, this
  18  *   list of conditions and the following disclaimer in the documentation and/or other
  19  *   materials provided with the distribution.
  20  *
  21  * * Neither the name of Michael Stapelberg nor the names of contributors
  22  *   may be used to endorse or promote products derived from this software without
  23  *   specific prior written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
  26  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  27  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
  28  * SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  29  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  30  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  31  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  33  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  34  * DAMAGE.
  35  *
  36  */
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #include <fcntl.h>
  40 #include <string.h>
  41 #include <stdio.h>
  42 #include <time.h>
  43 #include <stdbool.h>
  44 #include <stdarg.h>
  45 #include <unistd.h>
  46 #include <stdlib.h>
  47 #include <limits.h>
  48 #include <ctype.h>
  49 #include <sys/ioctl.h>
  50 #include <sys/socket.h>
  51 #include <netinet/in.h>
  52 #include <getopt.h>
  53 #include <signal.h>
  54
  55 #include "queue.h"
  56
  57 #include "i3status.h"
  58
  59 struct battery_head batteries;
  60
  61 /* socket file descriptor for general purposes */
  62 int general_socket;
  63
  64 const char *wlan_interface;
  65 const char *eth_interface;
  66 const char *wmii_path;
  67 const char *time_format;
  68 bool use_colors;
  69 bool get_ethspeed;
  70 bool get_cpu_temperature;
  71 char *thermal_zone;
  72 const char *wmii_normcolors = "#222222 #333333";
  73 char order[MAX_ORDER][2];
  74 const char **run_watches;
  75 unsigned int num_run_watches;
  76 unsigned int interval = 1;
  77
  78 /*
  79  * Exit upon SIGPIPE because when we have nowhere to write to, gathering
  80  * system information is pointless.
  81  *
  82  */
  83 void sigpipe(int signum) {
  84         fprintf(stderr, "Received SIGPIPE, exiting\n");
  85         exit(1);
  86 }
  87
  88 int main(int argc, char *argv[]) {
  89         char part[512],
  90              pathbuf[512];
  91         unsigned int i;
  92
  93         char *configfile = PREFIX "/etc/i3status.conf";
  94         int o, option_index = 0;
  95         struct option long_options[] = {
  96                 {"config", required_argument, 0, 'c'},
  97                 {"help", no_argument, 0, 'h'},
  98                 {0, 0, 0, 0}
  99         };
 100
 101         struct sigaction action;
 102         memset(&action, 0, sizeof(struct sigaction));
 103         action.sa_handler = sigpipe;
 104         sigaction(SIGPIPE, &action, NULL);
 105
 106         SIMPLEQ_INIT(&batteries);
 107
 108         while ((o = getopt_long(argc, argv, "c:h", long_options, &option_index)) != -1)
 109                 if ((char)o == 'c')
 110                         configfile = optarg;
 111                 else if ((char)o == 'h') {
 112                         printf("i3status (c) 2008-2009 Michael Stapelberg\n"
 113                                 "Syntax: %s [-c <configfile>]\n", argv[0]);
 114                         return 0;
 115                 }
 116
 117         if (load_configuration(configfile) < 0)
 118                 return EXIT_FAILURE;
 119
 120         setup();
 121
 122         if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
 123                 die("Could not create socket\n");
 124
 125         while (1) {
 126                 for (i = 0; i < num_run_watches; i += 2) {
 127                         bool running = process_runs(run_watches[i+1]);
 128                         if (use_colors)
 129                                 snprintf(part, sizeof(part), "%s%s: %s",
 130                                         (running ? color("#00FF00") : color("#FF0000")),
 131                                         run_watches[i],
 132                                         (running ? "yes" : "no"));
 133                         else snprintf(part, sizeof(part), "%s: %s", run_watches[i], (running ? "yes" : "no"));
 134                         snprintf(pathbuf, sizeof(pathbuf), "%s%s", order[ORDER_RUN], run_watches[i]);
 135                         write_to_statusbar(pathbuf, part, false);
 136                 }
 137
 138                 if (wlan_interface)
 139                         write_to_statusbar(concat(order[ORDER_WLAN], "wlan"), get_wireless_info(), false);
 140                 if (eth_interface)
 141                         write_to_statusbar(concat(order[ORDER_ETH], "eth"), get_eth_info(), false);
 142                 struct battery *current_battery;
 143                 SIMPLEQ_FOREACH(current_battery, &batteries, batteries) {
 144                         write_to_statusbar(concat(order[ORDER_BATTERY], "battery"), get_battery_info(current_battery), false);
 145                 }
 146                 if (get_cpu_temperature)
 147                         write_to_statusbar(concat(order[ORDER_CPU_TEMPERATURE], "cpu_temperature"), get_cpu_temperature_info(), false);
 148
 149                 write_to_statusbar(concat(order[ORDER_LOAD], "load"), get_load(), !time_format);
 150
 151                 if (time_format) {
 152                         /* Get date & time */
 153                         time_t current_time = time(NULL);
 154                         struct tm *current_tm = localtime(&current_time);
 155                         (void)strftime(part, sizeof(part), time_format, current_tm);
 156                         write_to_statusbar(concat(order[ORDER_TIME], "time"), part, true);
 157                 }
 158
 159                 sleep(interval);
 160         }
 161 }