+static const char *
+uptime(void)
+{
+ struct sysinfo info;
+ int h = 0;
+ int m = 0;
+
+ sysinfo(&info);
+ h = info.uptime / 3600;
+ m = (info.uptime - h * 3600 ) / 60;
+
+ return bprintf("%dh %dm", h, m);
+}
+
+static const char *
+username(void)
+{
+ struct passwd *pw = getpwuid(geteuid());
+
+ if (pw == NULL) {
+ warn("Failed to get username");
+ return UNKNOWN_STR;
+ }
+
+ return bprintf("%s", pw->pw_name);
+}
+
+static const char *
+uid(void)
+{
+ return bprintf("%d", geteuid());
+}
+
+
+static const char *
+vol_perc(const char *card)
+{
+ unsigned int i;
+ int v, afd, devmask;
+ char *vnames[] = SOUND_DEVICE_NAMES;
+
+ afd = open(card, O_RDONLY | O_NONBLOCK);
+ if (afd == -1) {
+ warn("Cannot open %s", card);
+ return UNKNOWN_STR;
+ }
+
+ if (ioctl(afd, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) {
+ warn("Cannot get volume for %s", card);
+ close(afd);
+ return UNKNOWN_STR;
+ }
+ for (i = 0; i < (sizeof(vnames) / sizeof((vnames[0]))); i++) {
+ if (devmask & (1 << i) && !strcmp("vol", vnames[i])) {
+ if (ioctl(afd, MIXER_READ(i), &v) == -1) {
+ warn("vol_perc: ioctl");
+ close(afd);
+ return UNKNOWN_STR;
+ }
+ }
+ }
+
+ close(afd);
+
+ return bprintf("%d", v & 0xff);
+}
+
+static const char *
+wifi_perc(const char *iface)
+{
+ int i, perc;
+ char *p, *datastart;
+ char path[PATH_MAX];
+ char status[5];
+ FILE *fp;
+
+ snprintf(path, sizeof(path), "%s%s%s", "/sys/class/net/", iface, "/operstate");
+ fp = fopen(path, "r");
+ if (fp == NULL) {
+ warn("Failed to open file %s", path);
+ return UNKNOWN_STR;
+ }
+ p = fgets(status, 5, fp);
+ fclose(fp);
+ if(!p || strcmp(status, "up\n") != 0) {
+ return UNKNOWN_STR;
+ }
+
+ fp = fopen("/proc/net/wireless", "r");
+ if (fp == NULL) {
+ warn("Failed to open file /proc/net/wireless");
+ return UNKNOWN_STR;
+ }
+
+ for (i = 0; i < 3; i++) {
+ if (!(p = fgets(buf, sizeof(buf) - 1, fp)))
+ break;
+ }
+ fclose(fp);
+ if (i < 2 || !p)
+ return UNKNOWN_STR;
+
+ if ((datastart = strstr(buf, iface)) == NULL)
+ return UNKNOWN_STR;
+
+ datastart = (datastart+(strlen(iface)+1));
+ sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc);
+
+ return bprintf("%d", perc);
+}
+
+static const char *
+wifi_essid(const char *iface)
+{
+ static char id[IW_ESSID_MAX_SIZE+1];
+ int sockfd = socket(AF_INET, SOCK_DGRAM, 0);
+ struct iwreq wreq;
+
+ memset(&wreq, 0, sizeof(struct iwreq));
+ wreq.u.essid.length = IW_ESSID_MAX_SIZE+1;
+ snprintf(wreq.ifr_name, sizeof(wreq.ifr_name), "%s", iface);
+
+ if (sockfd == -1) {
+ warn("Failed to get ESSID for interface %s", iface);
+ return UNKNOWN_STR;
+ }
+ wreq.u.essid.pointer = id;
+ if (ioctl(sockfd,SIOCGIWESSID, &wreq) == -1) {
+ warn("Failed to get ESSID for interface %s", iface);
+ return UNKNOWN_STR;
+ }
+
+ close(sockfd);
+
+ if (strcmp(id, "") == 0)
+ return UNKNOWN_STR;
+ else
+ return id;
+}
+
+static void
+sighandler(const int signo)
+{
+ if (signo == SIGTERM || signo == SIGINT) {
+ done = 1;
+ }
+}
+
+static void
+usage(void)
+{
+ fprintf(stderr, "usage: %s [-s]\n", argv0);
+ exit(1);
+}
+
+int
+main(int argc, char *argv[])
+{
+ struct arg argument;
+ struct sigaction act;
+ size_t i, len;
+ int sflag = 0;
+ char status_string[MAXLEN];
+ char *element;
+
+ ARGBEGIN {
+ case 's':
+ sflag = 1;
+ break;
+ default:
+ usage();
+ } ARGEND
+
+ if (argc) {
+ usage();
+ }
+
+ memset(&act, 0, sizeof(act));
+ act.sa_handler = sighandler;
+ sigaction(SIGINT, &act, 0);
+ sigaction(SIGTERM, &act, 0);
+
+ if (!sflag) {
+ dpy = XOpenDisplay(NULL);
+ }
+
+ setlocale(LC_ALL, "");
+
+ while (!done) {
+ status_string[0] = '\0';
+
+ for (element = status_string, i = len = 0;
+ i < sizeof(args) / sizeof(args[0]);
+ ++i, element += len) {
+ argument = args[i];
+ len = snprintf(element, sizeof(status_string)-1 - len,
+ argument.fmt,
+ argument.func(argument.args));
+ if (len >= sizeof(status_string)) {
+ status_string[sizeof(status_string)-1] = '\0';
+ break;
+ }
+ }
+
+ if (sflag) {
+ printf("%s\n", status_string);
+ } else {
+ XStoreName(dpy, DefaultRootWindow(dpy), status_string);
+ XSync(dpy, False);
+ }
+
+ if ((UPDATE_INTERVAL - delay) <= 0) {
+ delay = 0;
+ continue;
+ } else {
+ sleep(UPDATE_INTERVAL - delay);
+ delay = 0;
+ }
+ }
+
+ if (!sflag) {
+ XStoreName(dpy, DefaultRootWindow(dpy), NULL);
+ XCloseDisplay(dpy);
+ }
+
+ return 0;