-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) {
- perror("malloc");
- exit(1);
- }
-
- va_start(ap, fmt);
- vsnprintf(ret, len, fmt, ap);
- va_end(ap);
-
- return ret;
-}
-
-static char *
-battery_perc(const char *battery)
-{
- int perc;
- FILE *fp;
-
- ccat(3, "/sys/class/power_supply/", battery, "/capacity");
- fp = fopen(concat, "r");
- if (fp == NULL) {
- warn("Error opening battery file: %s", concat);
- return smprintf(UNKNOWN_STR);
- }
- fscanf(fp, "%i", &perc);
- fclose(fp);
-
- return smprintf("%d%%", perc);
-}
-
-static char *
-battery_state(const char *battery)
-{
- char state[12];
- FILE *fp;
-
- if (!state) {
- warn("Failed to get battery state.");
- return smprintf(UNKNOWN_STR);
- }
-
-
- ccat(3, "/sys/class/power_supply/", battery, "/status");
- fp = fopen(concat, "r");
- if (fp == NULL) {
- warn("Error opening battery 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 = fopen("/proc/stat","r");
-
- if (fp == NULL) {
- warn("Error opening stat file");
- 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("Error opening stat file");
- 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 *timeformat)
-{
- time_t t;
- char timestr[80];
-
- t = time(NULL);
- if (strftime(timestr, sizeof(timestr), timeformat, localtime(&t)) == 0)
- return smprintf(UNKNOWN_STR);
-
- return smprintf("%s", timestr);
-}
-
-static char *
-disk_free(const char *mountpoint)
-{
- struct statvfs fs;
-
- if (statvfs(mountpoint, &fs) < 0) {
- warn("Could not 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 *mountpoint)
-{
- int perc = 0;
- struct statvfs fs;
-
- if (statvfs(mountpoint, &fs) < 0) {
- warn("Could not 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 *mountpoint)
-{
- struct statvfs fs;
-
- if (statvfs(mountpoint, &fs) < 0) {
- warn("Could not 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 *mountpoint)