+/*
+ * Copy me if you can.
+ * by 20h
+ */
+
+#define _BSD_SOURCE
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <strings.h>
+#include <sys/time.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <X11/Xlib.h>
+
+char *tzargentina = "America/Buenos_Aires";
+char *tzutc = "UTC";
+char *tzberlin = "Europe/Berlin";
+
+static Display *dpy;
+
+char *
+smprintf(char *fmt, ...)
+{
+ va_list fmtargs;
+ char *ret;
+ int len;
+
+ va_start(fmtargs, fmt);
+ len = vsnprintf(NULL, 0, fmt, fmtargs);
+ va_end(fmtargs);
+
+ ret = malloc(++len);
+ if (ret == NULL) {
+ perror("malloc");
+ exit(1);
+ }
+
+ va_start(fmtargs, fmt);
+ vsnprintf(ret, len, fmt, fmtargs);
+ va_end(fmtargs);
+
+ return ret;
+}
+
+void
+settz(char *tzname)
+{
+ setenv("TZ", tzname, 1);
+}
+
+char *
+mktimes(char *fmt, char *tzname)
+{
+ char buf[129];
+ time_t tim;
+ struct tm *timtm;
+
+ settz(tzname);
+ tim = time(NULL);
+ timtm = localtime(&tim);
+ if (timtm == NULL)
+ return smprintf("");
+
+ if (!strftime(buf, sizeof(buf)-1, fmt, timtm)) {
+ fprintf(stderr, "strftime == 0\n");
+ return smprintf("");
+ }
+
+ return smprintf("%s", buf);
+}
+
+void
+setstatus(char *str)
+{
+ XStoreName(dpy, DefaultRootWindow(dpy), str);
+ XSync(dpy, False);
+}
+
+char *
+loadavg(void)
+{
+ double avgs[3];
+
+ if (getloadavg(avgs, 3) < 0)
+ return smprintf("");
+
+ return smprintf("%.2f %.2f %.2f", avgs[0], avgs[1], avgs[2]);
+}
+
+char *
+readfile(char *base, char *file)
+{
+ char *path, line[513];
+ FILE *fd;
+
+ memset(line, 0, sizeof(line));
+
+ path = smprintf("%s/%s", base, file);
+ fd = fopen(path, "r");
+ free(path);
+ if (fd == NULL)
+ return NULL;
+
+ if (fgets(line, sizeof(line)-1, fd) == NULL)
+ return NULL;
+ fclose(fd);
+
+ return smprintf("%s", line);
+}
+
+char *
+getbattery(char *base)
+{
+ char *co, status;
+ int descap, remcap;
+
+ descap = -1;
+ remcap = -1;
+
+ co = readfile(base, "present");
+ if (co == NULL)
+ return smprintf("");
+ if (co[0] != '1') {
+ free(co);
+ return smprintf("not present");
+ }
+ free(co);
+
+ co = readfile(base, "charge_full_design");
+ if (co == NULL) {
+ co = readfile(base, "energy_full_design");
+ if (co == NULL)
+ return smprintf("");
+ }
+ sscanf(co, "%d", &descap);
+ free(co);
+
+ co = readfile(base, "charge_now");
+ if (co == NULL) {
+ co = readfile(base, "energy_now");
+ if (co == NULL)
+ return smprintf("");
+ }
+ sscanf(co, "%d", &remcap);
+ free(co);
+
+ co = readfile(base, "status");
+ if (!strncmp(co, "Discharging", 11)) {
+ status = '-';
+ } else if(!strncmp(co, "Charging", 8)) {
+ status = '+';
+ } else {
+ status = '?';
+ }
+
+ if (remcap < 0 || descap < 0)
+ return smprintf("invalid");
+
+ return smprintf("%.0f%%%c", ((float)remcap / (float)descap) * 100, status);
+}
+
+char *
+gettemperature(char *base, char *sensor)
+{
+ char *co;
+
+ co = readfile(base, sensor);
+ if (co == NULL)
+ return smprintf("");
+ return smprintf("%02.0f°C", atof(co) / 1000);
+}
+
+int
+main(void)
+{
+ char *status;
+ char *avgs;
+ char *bat;
+ char *bat1;
+ char *tmar;
+ char *tmutc;
+ char *tmbln;
+ char *t0, *t1, *t2, *t3;
+
+ if (!(dpy = XOpenDisplay(NULL))) {
+ fprintf(stderr, "dwmstatus: cannot open display.\n");
+ return 1;
+ }
+
+ for (;;sleep(60)) {
+ avgs = loadavg();
+ bat = getbattery("/sys/class/power_supply/BAT0");
+ bat1 = getbattery("/sys/class/power_supply/BAT1");
+ tmar = mktimes("%H:%M", tzargentina);
+ tmutc = mktimes("%H:%M", tzutc);
+ tmbln = mktimes("KW %W %a %d %b %H:%M %Z %Y", tzberlin);
+ t0 = gettemperature("/sys/devices/virtual/hwmon/hwmon1", "temp1_input");
+ t1 = gettemperature("/sys/devices/platform/coretemp.0/hwmon/hwmon3", "temp1_input");
+ t2 = gettemperature("/sys/devices/platform/coretemp.0/hwmon/hwmon3", "temp2_input");
+ t3 = gettemperature("/sys/devices/platform/coretemp.0/hwmon/hwmon3", "temp3_input");
+
+ status = smprintf("T:%s|%s|%s|%s L:%s B:%s|%s A:%s U:%s %s",
+ t0, t1, t2, t3, avgs, bat, bat1, tmar, tmutc,
+ tmbln);
+ setstatus(status);
+
+ free(t0);
+ free(t1);
+ free(t2);
+ free(t3);
+ free(avgs);
+ free(bat);
+ free(bat1);
+ free(tmar);
+ free(tmutc);
+ free(tmbln);
+ free(status);
+ }
+
+ XCloseDisplay(dpy);
+
+ return 0;
+}
+
projects / dwm-status / commitdiff