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

   1 /*
   2  * Generates a status line for use with wmii or other minimal window managers
   3  *
   4  *
   5  * Copyright (c) 2008-2009 Michael Stapelberg and contributors
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without modification,
   9  * are permitted provided that the following conditions are met:
  10  *
  11  * * Redistributions of source code must retain the above copyright notice, this
  12  *   list of conditions and the following disclaimer.
  13  *
  14  * * Redistributions in binary form must reproduce the above copyright notice, this
  15  *   list of conditions and the following disclaimer in the documentation and/or other
  16  *   materials provided with the distribution.
  17  *
  18  * * Neither the name of Michael Stapelberg nor the names of contributors
  19  *   may be used to endorse or promote products derived from this software without
  20  *   specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
  23  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
  25  * SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  27  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  28  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  30  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  31  * DAMAGE.
  32  *
  33  */
  34 #include <sys/types.h>
  35 #include <sys/stat.h>
  36 #include <fcntl.h>
  37 #include <string.h>
  38 #include <stdio.h>
  39 #include <time.h>
  40 #include <stdbool.h>
  41 #include <stdarg.h>
  42 #include <unistd.h>
  43 #include <stdlib.h>
  44 #include <limits.h>
  45 #include <ctype.h>
  46 #include <net/if.h>
  47 #include <sys/ioctl.h>
  48 #include <sys/socket.h>
  49 #include <netinet/in.h>
  50 #include <arpa/inet.h>
  51 #include <glob.h>
  52 #include <dirent.h>
  53 #include <getopt.h>
  54
  55 #ifdef LINUX
  56 #include <linux/ethtool.h>
  57 #include <linux/sockios.h>
  58 #else
  59 /* TODO: correctly check for *BSD */
  60 #include <sys/param.h>
  61 #include <sys/sysctl.h>
  62 #include <sys/resource.h>
  63 #endif
  64
  65 #include "wmiistatus.h"
  66
  67 #define BAR "^fg(#333333)^p(5;-2)^ro(2)^p()^fg()^p(5)"
  68
  69 /* socket file descriptor for general purposes */
  70 static int general_socket;
  71
  72 static const char *wlan_interface;
  73 static const char *eth_interface;
  74 static char *wmii_path;
  75 static const char *time_format;
  76 static const char *battery_path;
  77 static bool use_colors;
  78 static bool get_ethspeed;
  79 static const char *wmii_normcolors = "#222222 #333333";
  80 static char order[MAX_ORDER][2];
  81 static const char **run_watches;
  82 static unsigned int num_run_watches;
  83 static unsigned int interval = 1;
  84
  85 /*
  86  * This function just concats two strings in place, it should only be used
  87  * for concatting order to the name of a file or concatting color codes.
  88  * Otherwise, the buffer size would have to be increased.
  89  *
  90  */
  91 static char *concat(const char *str1, const char *str2) {
  92         static char concatbuf[32];
  93         (void)snprintf(concatbuf, sizeof(concatbuf), "%s%s", str1, str2);
  94         return concatbuf;
  95 }
  96
  97 /*
  98  * Returns the correct color format for dzen (^fg(color)) or wmii (color <normcolors>)
  99  *
 100  */
 101 static char *color(const char *colorstr) {
 102         static char colorbuf[32];
 103 #ifdef DZEN
 104         (void)snprintf(colorbuf, sizeof(colorbuf), "^fg(%s)", colorstr);
 105 #else
 106         (void)snprintf(colorbuf, sizeof(colorbuf), "%s %s ", colorstr, wmii_normcolors);
 107 #endif
 108         return colorbuf;
 109 }
 110
 111 /*
 112  * Cleans wmii's /rbar directory by deleting all regular files
 113  *
 114  */
 115 static void cleanup_rbar_dir() {
 116         struct dirent *ent;
 117         DIR *dir;
 118         char pathbuf[strlen(wmii_path)+256+1];
 119
 120         if ((dir = opendir(wmii_path)) == NULL)
 121                 exit(EXIT_FAILURE);
 122
 123         while ((ent = readdir(dir)) != NULL) {
 124                 if (ent->d_type == DT_REG) {
 125                         (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, ent->d_name);
 126                         if (unlink(pathbuf) == -1)
 127                                 exit(EXIT_FAILURE);
 128                 }
 129         }
 130
 131         (void)closedir(dir);
 132 }
 133
 134 /*
 135  * Creates the specified file in wmii's /rbar directory with
 136  * correct modes and initializes colors if colormode is enabled
 137  *
 138  */
 139 static void create_file(const char *name) {
 140         char pathbuf[strlen(wmii_path)+256+1];
 141         int fd;
 142         int flags = O_CREAT | O_WRONLY;
 143         struct stat statbuf;
 144
 145         (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, name);
 146
 147         /* Overwrite file's contents if it exists */
 148         if (stat(pathbuf, &statbuf) >= 0)
 149                 flags |= O_TRUNC;
 150
 151         if ((fd = open(pathbuf, flags, S_IRUSR | S_IWUSR)) < 0)
 152                 exit(EXIT_FAILURE);
 153         if (use_colors) {
 154                 char *tmp = color("#888888");
 155                 if (write(fd, tmp, strlen(tmp)) != (ssize_t)strlen(tmp))
 156                         exit(EXIT_FAILURE);
 157         }
 158         (void)close(fd);
 159 }
 160
 161 /*
 162  * Waits until wmii_path/rbar exists (= the filesystem gets mounted),
 163  * cleans up all files and creates the needed files
 164  *
 165  */
 166 static void setup(void) {
 167         unsigned int i;
 168         struct stat statbuf;
 169         char pathbuf[512];
 170
 171         /* Wait until wmii_path/rbar exists */
 172         for (; stat(wmii_path, &statbuf) < 0; sleep(interval));
 173
 174         cleanup_rbar_dir();
 175         if (wlan_interface)
 176                 create_file(concat(order[ORDER_WLAN],"wlan"));
 177         if (eth_interface)
 178                 create_file(concat(order[ORDER_ETH],"eth"));
 179         if (battery_path)
 180                 create_file(concat(order[ORDER_BATTERY],"battery"));
 181         create_file(concat(order[ORDER_LOAD],"load"));
 182         if (time_format)
 183                 create_file(concat(order[ORDER_TIME],"time"));
 184         for (i = 0; i < num_run_watches; i += 2) {
 185                 snprintf(pathbuf, sizeof(pathbuf), "%s%s", order[ORDER_RUN], run_watches[i]);
 186                 create_file(pathbuf);
 187         }
 188 }
 189
 190 /*
 191  * Writes the given message in the corresponding file in wmii's /rbar directory
 192  *
 193  */
 194 static void write_to_statusbar(const char *name, const char *message, bool final_entry) {
 195 #ifdef DZEN
 196         if (final_entry) {
 197                 (void)printf("%s^p(6)\n", message);
 198                 fflush(stdout);
 199                 return;
 200         }
 201         (void)printf("%s" BAR, message);
 202         return;
 203 #endif
 204
 205         char pathbuf[strlen(wmii_path)+256+1];
 206         int fd;
 207
 208         (void)snprintf(pathbuf, sizeof(pathbuf), "%s%s", wmii_path, name);
 209         if ((fd = open(pathbuf, O_RDWR)) == -1) {
 210                 /* Try to re-setup stuff and just continue */
 211                 setup();
 212                 return;
 213         }
 214         if (write(fd, message, strlen(message)) != (ssize_t)strlen(message))
 215                 exit(EXIT_FAILURE);
 216         (void)close(fd);
 217 }
 218
 219 /*
 220  * Writes an errormessage to statusbar
 221  *
 222  */
 223 static void write_error_to_statusbar(const char *message) {
 224         cleanup_rbar_dir();
 225         create_file("error");
 226         write_to_statusbar("error", message, true);
 227 }
 228
 229 /*
 230  * Write errormessage to statusbar and exit
 231  *
 232  */
 233 void die(const char *fmt, ...) {
 234         if (wmii_path != NULL) {
 235                 char buffer[512];
 236                 va_list ap;
 237                 va_start(ap, fmt);
 238                 (void)vsnprintf(buffer, sizeof(buffer), fmt, ap);
 239                 va_end(ap);
 240
 241                 write_error_to_statusbar(buffer);
 242         }
 243         exit(EXIT_FAILURE);
 244 }
 245
 246 /*
 247  * Skip the given character for exactly 'amount' times, returns
 248  * a pointer to the first non-'character' character in 'input'.
 249  *
 250  */
 251 static char *skip_character(char *input, char character, int amount) {
 252         char *walk;
 253         size_t len = strlen(input);
 254         int blanks = 0;
 255
 256         for (walk = input; ((size_t)(walk - input) < len) && (blanks < amount); walk++)
 257                 if (*walk == character)
 258                         blanks++;
 259
 260         return (walk == input ? walk : walk-1);
 261 }
 262
 263 /*
 264  * Get battery information from /sys. Note that it uses the design capacity to
 265  * calculate the percentage, not the last full capacity, so you can see how
 266  * worn off your battery is.
 267  *
 268  */
 269 static char *get_battery_info() {
 270         char buf[1024];
 271         static char part[512];
 272         char *walk, *last;
 273         int fd;
 274         int full_design = -1,
 275             remaining = -1,
 276             present_rate = -1;
 277         charging_status_t status = CS_DISCHARGING;
 278
 279         if ((fd = open(battery_path, O_RDONLY)) == -1)
 280                 return "No battery found";
 281
 282         memset(part, 0, sizeof(part));
 283         (void)read(fd, buf, sizeof(buf));
 284         for (walk = buf, last = buf; (walk-buf) < 1024; walk++)
 285                 if (*walk == '=') {
 286                         if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_FULL_DESIGN") ||
 287                             BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_FULL_DESIGN"))
 288                                 full_design = atoi(walk+1);
 289                         else if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_NOW") ||
 290                                  BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_NOW"))
 291                                 remaining = atoi(walk+1);
 292                         else if (BEGINS_WITH(last, "POWER_SUPPLY_CURRENT_NOW"))
 293                                 present_rate = atoi(walk+1);
 294                         else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Charging"))
 295                                 status = CS_CHARGING;
 296                         else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Full"))
 297                                 status = CS_FULL;
 298                 } else if (*walk == '\n')
 299                         last = walk+1;
 300         (void)close(fd);
 301
 302         if ((full_design != -1) && (remaining != -1) && (present_rate != -1)) {
 303                 float remaining_time;
 304                 int seconds, hours, minutes;
 305                 if (status == CS_CHARGING)
 306                         remaining_time = ((float)full_design - (float)remaining) / (float)present_rate;
 307                 else if (status == CS_DISCHARGING)
 308                         remaining_time = ((float)remaining / (float)present_rate);
 309                 else remaining_time = 0;
 310
 311                 seconds = (int)(remaining_time * 3600.0);
 312                 hours = seconds / 3600;
 313                 seconds -= (hours * 3600);
 314                 minutes = seconds / 60;
 315                 seconds -= (minutes * 60);
 316
 317                 (void)snprintf(part, sizeof(part), "%s %.02f%% %02d:%02d:%02d",
 318                         (status == CS_CHARGING ? "CHR" :
 319                          (status == CS_DISCHARGING ? "BAT" : "FULL")),
 320                         (((float)remaining / (float)full_design) * 100),
 321                         hours, minutes, seconds);
 322         }
 323         return part;
 324 }
 325
 326 /*
 327  * Return the IP address for the given interface or "no IP" if the
 328  * interface is up and running but hasn't got an IP address yet
 329  *
 330  */
 331 static const char *get_ip_address(const char *interface) {
 332         static char part[512];
 333         struct ifreq ifr;
 334         struct sockaddr_in addr;
 335         socklen_t len = sizeof(struct sockaddr_in);
 336         memset(part, 0, sizeof(part));
 337
 338         (void)strcpy(ifr.ifr_name, interface);
 339         ifr.ifr_addr.sa_family = AF_INET;
 340         if (ioctl(general_socket, SIOCGIFADDR, &ifr) < 0)
 341                 return NULL;
 342
 343         memcpy(&addr, &ifr.ifr_addr, len);
 344         (void)inet_ntop(AF_INET, &addr.sin_addr.s_addr, part, len);
 345         if (strlen(part) == 0)
 346                 (void)snprintf(part, sizeof(part), "no IP");
 347
 348         return part;
 349 }
 350
 351 /*
 352  * Just parses /proc/net/wireless looking for lines beginning with
 353  * wlan_interface, extracting the quality of the link and adding the
 354  * current IP address of wlan_interface.
 355  *
 356  */
 357 static char *get_wireless_info() {
 358         char buf[1024];
 359         static char part[512];
 360         char *interfaces;
 361         int fd;
 362         memset(buf, 0, sizeof(buf));
 363         memset(part, 0, sizeof(part));
 364
 365         if ((fd = open("/proc/net/wireless", O_RDONLY)) == -1)
 366                 die("Could not open /proc/net/wireless\n");
 367         (void)read(fd, buf, sizeof(buf));
 368         (void)close(fd);
 369
 370         interfaces = skip_character(buf, '\n', 1) + 1;
 371         while ((interfaces = skip_character(interfaces, '\n', 1)+1) < buf+strlen(buf)) {
 372                 while (isspace((int)*interfaces))
 373                         interfaces++;
 374                 if (!BEGINS_WITH(interfaces, wlan_interface))
 375                         continue;
 376                 int quality;
 377                 if (sscanf(interfaces, "%*[^:]: 0000 %d", &quality) != 1)
 378                         continue;
 379                 if ((quality == UCHAR_MAX) || (quality == 0)) {
 380                         if (use_colors)
 381                                 (void)snprintf(part, sizeof(part), "%sW: down", color("#FF0000"));
 382                         else (void)snprintf(part, sizeof(part), "W: down");
 383                 } else (void)snprintf(part, sizeof(part), "%sW: (%03d%%) %s",
 384                                 color("#00FF00"), quality, get_ip_address(wlan_interface));
 385                 return part;
 386         }
 387
 388         return part;
 389 }
 390
 391 /*
 392  * Combines ethernet IP addresses and speed (if requested) for displaying
 393  *
 394  */
 395 static char *get_eth_info() {
 396         static char part[512];
 397         const char *ip_address = get_ip_address(eth_interface);
 398         int ethspeed = 0;
 399
 400         if (get_ethspeed) {
 401 #ifdef LINUX
 402                 /* This code path requires root privileges */
 403                 struct ifreq ifr;
 404                 struct ethtool_cmd ecmd;
 405
 406                 ecmd.cmd = ETHTOOL_GSET;
 407                 (void)memset(&ifr, 0, sizeof(ifr));
 408                 ifr.ifr_data = (caddr_t)&ecmd;
 409                 (void)strcpy(ifr.ifr_name, eth_interface);
 410                 if (ioctl(general_socket, SIOCETHTOOL, &ifr) == 0)
 411                         ethspeed = (ecmd.speed == USHRT_MAX ? 0 : ecmd.speed);
 412                 else get_ethspeed = false;
 413 #endif
 414         }
 415
 416         if (ip_address == NULL)
 417                 (void)snprintf(part, sizeof(part), "E: down");
 418         else {
 419                 if (get_ethspeed)
 420                         (void)snprintf(part, sizeof(part), "E: %s (%d Mbit/s)", ip_address, ethspeed);
 421                 else (void)snprintf(part, sizeof(part), "E: %s", ip_address);
 422         }
 423
 424         return part;
 425 }
 426
 427 /*
 428  * Checks if the PID in path is still valid by checking:
 429  *  (Linux) if /proc/<pid> exists
 430  *  (NetBSD) if sysctl returns process infos for this pid
 431  *
 432  */
 433 static bool process_runs(const char *path) {
 434         char pidbuf[16];
 435         static glob_t globbuf;
 436         int fd;
 437         memset(pidbuf, 0, sizeof(pidbuf));
 438
 439         if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
 440                 die("glob() failed\n");
 441         fd = open((globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path), O_RDONLY);
 442         globfree(&globbuf);
 443         if (fd < 0)
 444                 return false;
 445         (void)read(fd, pidbuf, sizeof(pidbuf));
 446         (void)close(fd);
 447
 448 #ifdef LINUX
 449         struct stat statbuf;
 450         char procbuf[512];
 451         (void)snprintf(procbuf, sizeof(procbuf), "/proc/%ld", strtol(pidbuf, NULL, 10));
 452         return (stat(procbuf, &statbuf) >= 0);
 453 #else
 454         /* TODO: correctly check for NetBSD. Evaluate if this runs on OpenBSD/FreeBSD */
 455         struct kinfo_proc info;
 456         size_t length = sizeof(struct kinfo_proc);
 457         int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, strtol(pidbuf, NULL, 10) };
 458         if (sysctl(mib, 4, &info, &length, NULL, 0) < 0)
 459                 return false;
 460         return (length != 0);
 461 #endif
 462 }
 463
 464 /*
 465  * Reads the configuration from the given file
 466  *
 467  */
 468 static int load_configuration(const char *configfile) {
 469         #define OPT(x) else if (strcasecmp(dest_name, x) == 0)
 470
 471         /* check if the file exists */
 472         struct stat buf;
 473         if (stat(configfile, &buf) < 0)
 474                 return -1;
 475
 476         int result = 0;
 477         FILE *handle = fopen(configfile, "r");
 478         if (handle == NULL)
 479                 die("Could not open configfile\n");
 480         char dest_name[512], dest_value[512], whole_buffer[1026];
 481         struct stat stbuf;
 482         while (!feof(handle)) {
 483                 char *ret;
 484                 if ((ret = fgets(whole_buffer, 1024, handle)) == whole_buffer) {
 485                         /* sscanf implicitly strips whitespace */
 486                         if (sscanf(whole_buffer, "%s %[^\n]", dest_name, dest_value) < 1)
 487                                 continue;
 488                 } else if (ret != NULL)
 489                         die("Could not read line in configuration file\n");
 490
 491                 /* skip comments and empty lines */
 492                 if (dest_name[0] == '#' || strlen(dest_name) < 3)
 493                         continue;
 494
 495                 OPT("wlan")
 496                         wlan_interface = strdup(dest_value);
 497                 OPT("eth")
 498                         eth_interface = strdup(dest_value);
 499                 OPT("time_format")
 500                         time_format = strdup(dest_value);
 501                 OPT("battery_path")
 502                         battery_path = strdup(dest_value);
 503                 OPT("color")
 504                         use_colors = true;
 505                 OPT("get_ethspeed")
 506                         get_ethspeed = true;
 507                 OPT("normcolors")
 508                         wmii_normcolors = strdup(dest_value);
 509                 OPT("interval")
 510                         interval = atoi(dest_value);
 511                 OPT("wmii_path")
 512                 {
 513                         static glob_t globbuf;
 514                         if (glob(dest_value, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0)
 515                                 die("glob() failed\n");
 516                         wmii_path = strdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : dest_value);
 517                         globfree(&globbuf);
 518
 519                         if ((stat(wmii_path, &stbuf)) == -1) {
 520                                 fprintf(stderr, "Warning: wmii_path contains an invalid path\n");
 521                                 free(wmii_path);
 522                                 wmii_path = strdup(dest_value);
 523                         }
 524                         if (wmii_path[strlen(wmii_path)-1] != '/')
 525                                 die("wmii_path is not terminated by /\n");
 526                 }
 527                 OPT("run_watch")
 528                 {
 529                         char *name = strdup(dest_value);
 530                         char *path = name;
 531                         while (*path != ' ')
 532                                 path++;
 533                         *(path++) = '\0';
 534                         num_run_watches += 2;
 535                         run_watches = realloc(run_watches, sizeof(char*) * num_run_watches);
 536                         run_watches[num_run_watches-2] = name;
 537                         run_watches[num_run_watches-1] = path;
 538                 }
 539                 OPT("order")
 540                 {
 541                         #define SET_ORDER(opt, idx) { if (strcasecmp(token, opt) == 0) sprintf(order[idx], "%d", c++); }
 542                         char *walk, *token;
 543                         int c = 0;
 544                         walk = token = dest_value;
 545                         while (*walk != '\0') {
 546                                 while ((*walk != ',') && (*walk != '\0'))
 547                                         walk++;
 548                                 *(walk++) = '\0';
 549                                 SET_ORDER("run", ORDER_RUN);
 550                                 SET_ORDER("wlan", ORDER_WLAN);
 551                                 SET_ORDER("eth", ORDER_ETH);
 552                                 SET_ORDER("battery", ORDER_BATTERY);
 553                                 SET_ORDER("load", ORDER_LOAD);
 554                                 SET_ORDER("time", ORDER_TIME);
 555                                 token = walk;
 556                                 while (isspace((int)(*token)))
 557                                         token++;
 558                         }
 559                 }
 560                 else
 561                 {
 562                         result = -2;
 563                         die("Unknown configfile option: %s\n", dest_name);
 564                 }
 565         }
 566         fclose(handle);
 567
 568         if (wmii_path == NULL)
 569                 exit(EXIT_FAILURE);
 570
 571         return result;
 572 }
 573
 574 int main(int argc, char *argv[]) {
 575         char part[512],
 576              pathbuf[512];
 577         unsigned int i;
 578
 579         char *configfile = PREFIX "/etc/wmiistatus.conf";
 580         int o, option_index = 0;
 581         struct option long_options[] = {
 582                 {"config", required_argument, 0, 'c'},
 583                 {"help", no_argument, 0, 'h'},
 584                 {0, 0, 0, 0}
 585         };
 586
 587         while ((o = getopt_long(argc, argv, "c:h", long_options, &option_index)) != -1)
 588                 if ((char)o == 'c')
 589                         configfile = optarg;
 590                 else if ((char)o == 'h') {
 591                         printf("wmiistatus (c) 2008-2009 Michael Stapelberg\n"
 592                                 "Syntax: %s [-c <configfile>]\n", argv[0]);
 593                         return 0;
 594                 }
 595
 596         if (load_configuration(configfile) < 0)
 597                 return EXIT_FAILURE;
 598
 599         setup();
 600
 601         if ((general_socket = socket(AF_INET, SOCK_DGRAM, 0)) == -1)
 602                 die("Could not create socket\n");
 603
 604         while (1) {
 605                 for (i = 0; i < num_run_watches; i += 2) {
 606                         bool running = process_runs(run_watches[i+1]);
 607                         if (use_colors)
 608                                 snprintf(part, sizeof(part), "%s%s: %s",
 609                                         (running ? color("#00FF00") : color("#FF0000")),
 610                                         run_watches[i],
 611                                         (running ? "yes" : "no"));
 612                         else snprintf(part, sizeof(part), "%s: %s", run_watches[i], (running ? "yes" : "no"));
 613                         snprintf(pathbuf, sizeof(pathbuf), "%s%s", order[ORDER_RUN], run_watches[i]);
 614                         write_to_statusbar(pathbuf, part, false);
 615                 }
 616
 617                 if (wlan_interface)
 618                         write_to_statusbar(concat(order[ORDER_WLAN], "wlan"), get_wireless_info(), false);
 619                 if (eth_interface)
 620                         write_to_statusbar(concat(order[ORDER_ETH], "eth"), get_eth_info(), false);
 621                 if (battery_path)
 622                         write_to_statusbar(concat(order[ORDER_BATTERY], "battery"), get_battery_info(), false);
 623
 624                 /* Get load */
 625 #ifdef LINUX
 626                 int load_avg;
 627                 if ((load_avg = open("/proc/loadavg", O_RDONLY)) == -1)
 628                         die("Could not open /proc/loadavg\n");
 629                 (void)read(load_avg, part, sizeof(part));
 630                 (void)close(load_avg);
 631                 *skip_character(part, ' ', 3) = '\0';
 632 #else
 633                 /* TODO: correctly check for NetBSD, check if it works the same on *BSD */
 634                 struct loadavg load;
 635                 size_t length = sizeof(struct loadavg);
 636                 int mib[2] = { CTL_VM, VM_LOADAVG };
 637                 if (sysctl(mib, 2, &load, &length, NULL, 0) < 0)
 638                         die("Could not sysctl({ CTL_VM, VM_LOADAVG })\n");
 639                 double scale = load.fscale;
 640                 (void)snprintf(part, sizeof(part), "%.02f %.02f %.02f",
 641                                 (double)load.ldavg[0] / scale,
 642                                 (double)load.ldavg[1] / scale,
 643                                 (double)load.ldavg[2] / scale);
 644 #endif
 645                 write_to_statusbar(concat(order[ORDER_LOAD], "load"), part, !time_format);
 646
 647                 if (time_format) {
 648                         /* Get date & time */
 649                         time_t current_time = time(NULL);
 650                         struct tm *current_tm = localtime(&current_time);
 651                         (void)strftime(part, sizeof(part), time_format, current_tm);
 652                         write_to_statusbar(concat(order[ORDER_TIME], "time"), part, true);
 653                 }
 654
 655                 sleep(interval);
 656         }
 657 }