adding bar directly to dwm through utils

.config/suckless/dwm/util.c

@@ -5,6 +5,30 @@
 
 #include "util.h"
 
+const char* vol() {
+	static char buf[5];
+	float v;
+	FILE *fp = popen("wpctl get-volume @DEFAULT_AUDIO_SINK@", "r");
+	if (!fp || fscanf(fp, "Volume: %f", &v) != 1) return NULL;
+	pclose(fp);
+	snprintf(buf, sizeof(buf), "%d%%", (int)(v * 100));
+	return buf;
+}
+
+const char* age() {
+	static char buf[5];
+	int days;
+	FILE *fp = popen("sh -c 'echo $(( ( $(date +%s) - $(stat -c %W /) ) / 86400 ))'", "r");
+	if (!fp || fscanf(fp, "%d", &days) != 1) return NULL;
+	pclose(fp);
+	snprintf(buf, sizeof(buf), "%dd", days);
+	return buf;
+}
+
+void execute_bar(char *out, size_t len) {
+    snprintf(out, len, "V: %s  A: %s", vol(), age());
+}
+
 void die(const char *fmt, ...) {
 	va_list ap;