-static char *
-smprintf(const char *fmt, ...)
-{
- va_list ap;
- char *ret;
- int len;
-
- va_start(ap, fmt);
- len = vsnprintf(NULL, 0, fmt, ap);
- va_end(ap);
-
- ret = malloc(++len);
- if (ret == NULL) {
- err(1, "malloc");
- }
-
- va_start(ap, fmt);
- vsnprintf(ret, len, fmt, ap);
- va_end(ap);
-
- return ret;
-}
-
-static char *
-battery_perc(const char *bat)
-{
- int perc;
- FILE *fp;
-
- ccat(3, "/sys/class/power_supply/", bat, "/capacity");
- fp = fopen(concat, "r");
- if (fp == NULL) {
- warn("Failed to open file %s", concat);
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "%i", &perc);
- fclose(fp);
-
- return smprintf("%d%%", perc);
-}
-
-static char *
-battery_state(const char *bat)
-{
- char state[12];
- FILE *fp;
-
- ccat(3, "/sys/class/power_supply/", bat, "/status");
- fp = fopen(concat, "r");
- if (fp == NULL) {
- warn("Failed to open file %s", concat);
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "%12s", state);
- fclose(fp);
-
- if (strcmp(state, "Charging") == 0) {
- return smprintf("+");
- } else if (strcmp(state, "Discharging") == 0) {
- return smprintf("-");
- } else if (strcmp(state, "Full") == 0) {
- return smprintf("=");
- } else {
- return smprintf("?");
- }
-}
-
-static char *
-cpu_perc(void)
-{
- int perc;
- long double a[4], b[4];
- FILE *fp;
-
- fp = fopen("/proc/stat", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/stat");
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &a[0], &a[1], &a[2], &a[3]);
- fclose(fp);
-
- delay = (UPDATE_INTERVAL - (UPDATE_INTERVAL - 1));
- sleep(delay);
-
- fp = fopen("/proc/stat", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/stat");
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "%*s %Lf %Lf %Lf %Lf", &b[0], &b[1], &b[2], &b[3]);
- fclose(fp);
-
- perc = 100 * ((b[0]+b[1]+b[2]) - (a[0]+a[1]+a[2])) / ((b[0]+b[1]+b[2]+b[3]) - (a[0]+a[1]+a[2]+a[3]));
- return smprintf("%d%%", perc);
-}
-
-static char *
-datetime(const char *fmt)
-{
- time_t t;
- char str[80];
-
- t = time(NULL);
- if (strftime(str, sizeof(str), fmt, localtime(&t)) == 0) {
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%s", str);
-}
-
-static char *
-disk_free(const char *mnt)
-{
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
-}
-
-static char *
-disk_perc(const char *mnt)
-{
- int perc;
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return smprintf(UNKNOWN_STR);
- }
-
- perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
-
- return smprintf("%d%%", perc);
-}
-
-static char *
-disk_total(const char *mnt)
-{
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
-}
-
-static char *
-disk_used(const char *mnt)
-{
- struct statvfs fs;
-
- if (statvfs(mnt, &fs) < 0) {
- warn("Failed to get filesystem info");
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
-}
-
-static char *
-entropy(void)
-{
- int num;
- FILE *fp;
-
- fp= fopen("/proc/sys/kernel/random/entropy_avail", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/sys/kernel/random/entropy_avail");
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "%d", &num);
- fclose(fp);
-
- return smprintf("%d", num);
-}
-
-static char *
-gid(void)
-{
- return smprintf("%d", getgid());
-}
-
-static char *
-hostname(void)
-{
- char buf[HOST_NAME_MAX];
-
- if (gethostname(buf, sizeof(buf)) == -1) {
- warn(1, "hostname");
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%s", buf);
-}
-
-static char *
-ip(const char *iface)
-{
- struct ifaddrs *ifaddr, *ifa;
- int s;
- char host[NI_MAXHOST];
-
- if (getifaddrs(&ifaddr) == -1) {
- warn("Failed to get IP address for interface %s", iface);
- return smprintf(UNKNOWN_STR);
- }
-
- for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
- if (ifa->ifa_addr == NULL) {
- continue;
- }
- s = getnameinfo(ifa->ifa_addr, sizeof(struct sockaddr_in), host, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
- if ((strcmp(ifa->ifa_name, iface) == 0) && (ifa->ifa_addr->sa_family == AF_INET)) {
- if (s != 0) {
- warnx("Failed to get IP address for interface %s", iface);
- return smprintf(UNKNOWN_STR);
- }
- return smprintf("%s", host);
- }
- }
-
- freeifaddrs(ifaddr);
-
- return smprintf(UNKNOWN_STR);
-}
-
-static char *
-load_avg(void)
-{
- double avgs[3];
-
- if (getloadavg(avgs, 3) < 0) {
- warnx("Failed to get the load avg");
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
-}
-
-static char *
-ram_free(void)
-{
- long free;
- FILE *fp;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "MemFree: %ld kB\n", &free);
- fclose(fp);
-
- return smprintf("%f", (float)free / 1024 / 1024);
-}
-
-static char *
-ram_perc(void)
-{
- long total, free, buffers, cached;
- FILE *fp;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "MemTotal: %ld kB\n", &total);
- fscanf(fp, "MemFree: %ld kB\n", &free);
- fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", &buffers, &buffers);
- fscanf(fp, "Cached: %ld kB\n", &cached);
- fclose(fp);
-
- return smprintf("%d%%", 100 * ((total - free) - (buffers + cached)) / total);
-}
-
-static char *
-ram_total(void)
-{
- long total;
- FILE *fp;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "MemTotal: %ld kB\n", &total);
- fclose(fp);
-
- return smprintf("%f", (float)total / 1024 / 1024);
-}
-
-static char *
-ram_used(void)
-{
- long free, total, buffers, cached;
- FILE *fp;
-
- fp = fopen("/proc/meminfo", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/meminfo");
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "MemTotal: %ld kB\n", &total);
- fscanf(fp, "MemFree: %ld kB\n", &free);
- fscanf(fp, "MemAvailable: %ld kB\nBuffers: %ld kB\n", &buffers, &buffers);
- fscanf(fp, "Cached: %ld kB\n", &cached);
- fclose(fp);
-
- return smprintf("%f", (float)(total - free - buffers - cached) / 1024 / 1024);
-}
-
-static char *
-run_command(const char *cmd)
-{
- FILE *fp;
- char buf[64] = "n/a";
-
- fp = popen(cmd, "r");
- if (fp == NULL) {
- warn("Failed to get command output for %s", cmd);
- return smprintf(UNKNOWN_STR);
- }
- fgets(buf, sizeof(buf), fp);
- buf[sizeof(buf)-1] = '\0';
- pclose(fp);
-
- return smprintf("%s", buf);
-}
-
-static char *
-temp(const char *file)
-{
- int temp;
- FILE *fp;
-
- fp = fopen(file, "r");
- if (fp == NULL) {
- warn("Failed to open file %s", file);
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "%d", &temp);
- fclose(fp);
-
- return smprintf("%d°C", temp / 1000);
-}
-
-static 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 smprintf("%dh %dm", h, m);
-}
-
-static char *
-username(void)
-{
- uid_t uid = geteuid();
- struct passwd *pw = getpwuid(uid);
-
- if (pw == NULL) {
- warn("Failed to get username");
- return smprintf(UNKNOWN_STR);
- }
-
- return smprintf("%s", pw->pw_name);
-}
-
-static char *
-uid(void)
-{
- return smprintf("%d", geteuid());
-}
-
-
-static char *
-vol_perc(const char *card)
-{
- long int vol, max, min;
- snd_mixer_t *handle;
- snd_mixer_elem_t *elem;
- snd_mixer_selem_id_t *s_elem;
-
- snd_mixer_open(&handle, 0);
- snd_mixer_attach(handle, card);
- snd_mixer_selem_register(handle, NULL, NULL);
- snd_mixer_load(handle);
- snd_mixer_selem_id_malloc(&s_elem);
- snd_mixer_selem_id_set_name(s_elem, "Master");
- elem = snd_mixer_find_selem(handle, s_elem);
-
- if (elem == NULL) {
- snd_mixer_selem_id_free(s_elem);
- snd_mixer_close(handle);
- warn("Failed to get volume percentage for %s", card);
- return smprintf(UNKNOWN_STR);
- }
-
- snd_mixer_handle_events(handle);
- snd_mixer_selem_get_playback_volume_range(elem, &min, &max);
- snd_mixer_selem_get_playback_volume(elem, 0, &vol);
-
- snd_mixer_selem_id_free(s_elem);
- snd_mixer_close(handle);
-
- if (max == 0)
- return smprintf("%d%%", 0);
- else
- return smprintf("%d%%", ((uint_fast16_t)(vol * 100) / max));
-}
-
-static char *
-wifi_perc(const char *iface)
-{
- int perc;
- char buf[255];
- char *datastart;
- char status[5];
- FILE *fp;
-
- ccat(3, "/sys/class/net/", iface, "/operstate");
- fp = fopen(concat, "r");
- if (fp == NULL) {
- warn("Failed to open file %s", concat);
- return smprintf(UNKNOWN_STR);
- }
- fgets(status, 5, fp);
- fclose(fp);
- if(strcmp(status, "up\n") != 0) {
- return smprintf(UNKNOWN_STR);
- }
-
- fp = fopen("/proc/net/wireless", "r");
- if (fp == NULL) {
- warn("Failed to open file /proc/net/wireless");
- return smprintf(UNKNOWN_STR);
- }
- ccat(2, iface, ":");
- fgets(buf, sizeof(buf), fp);
- fgets(buf, sizeof(buf), fp);
- fgets(buf, sizeof(buf), fp);
- fclose(fp);
-
- datastart = strstr(buf, concat);
- if (datastart != NULL) {
- datastart = strstr(buf, ":");
- sscanf(datastart + 1, " %*d %d %*d %*d %*d %*d %*d %*d %*d %*d", &perc);
- }
-
- return smprintf("%d%%", perc);
-}
-
-static char *
-wifi_essid(const char *iface)