properly structure rfkill util

src/modules/network.cpp

@@ -3,12 +3,8 @@
 #include <sys/eventfd.h>
 #include <fstream>
 #include "util/format.hpp"
-
-#include <unistd.h>
-//#include <stdlib.h>
-#include <cstring>
+#include "util/rfkill.hpp"
 #include <linux/rfkill.h>
-#include <fcntl.h>
 
 namespace {
 
@@ -227,58 +223,15 @@ void waybar::modules::Network::worker() {
 
 const std::string waybar::modules::Network::getNetworkState() const {
   if (ifid_ == -1) {
-		if (isDisabled(RFKILL_TYPE_WLAN))
-			return "disabled";
-		return "disconnected";
-	}
+    if (waybar::util::isDisabled(RFKILL_TYPE_WLAN))
+      return "disabled";
+    return "disconnected";
+  }
   if (ipaddr_.empty()) return "linked";
   if (essid_.empty()) return "ethernet";
   return "wifi";
 }
 
-bool waybar::modules::Network::isDisabled(enum rfkill_type rfkill_type) const {
-  struct rfkill_event event;
-  ssize_t len;
-  int fd;
-  int ret;
-  ret = false;
-
-  fd = open("/dev/rfkill", O_RDONLY);
-  if (fd < 0) {
-    perror("Can't open RFKILL control device");
-    return false;
-  }
-
-  if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0) {
-    perror("Can't set RFKILL control device to non-blocking");
-    close(fd);
-    return false;
-  }
-
-  while(true) {
-    len = read(fd, &event, sizeof(event));
-    if (len < 0) {
-      if (errno == EAGAIN)
-        return 1;
-      perror("Reading of RFKILL events failed");
-      return false;
-    }
-
-    if (len != RFKILL_EVENT_SIZE_V1) {
-      fprintf(stderr, "Wrong size of RFKILL event\n");
-      return false;
-    }
-
-    if(event.type == rfkill_type) {
-      ret = event.soft || event.hard;
-      break;
-    }
-  }
-
-  close(fd);
-  return ret;
-}
-
 auto waybar::modules::Network::update() -> void {
   std::lock_guard<std::mutex> lock(mutex_);
   std::string                 tooltip_format;

src/util/rfkill.cpp

@@ -0,0 +1,49 @@
+#include "util/rfkill.hpp"
+#include <unistd.h>
+#include <stdlib.h>
+#include <cstring>
+#include <fcntl.h>
+#include <cerrno>
+
+bool waybar::util::isDisabled(enum rfkill_type rfkill_type) {
+  struct rfkill_event event;
+  ssize_t len;
+  int fd;
+  int ret;
+  ret = false;
+
+  fd = open("/dev/rfkill", O_RDONLY);
+  if (fd < 0) {
+    //perror("Can't open RFKILL control device");
+    return false;
+  }
+
+  if (fcntl(fd, F_SETFL, O_NONBLOCK) < 0) {
+    //perror("Can't set RFKILL control device to non-blocking");
+    close(fd);
+    return false;
+  }
+
+  while(true) {
+    len = read(fd, &event, sizeof(event));
+    if (len < 0) {
+      if (errno == EAGAIN)
+        return 1;
+      //perror("Reading of RFKILL events failed");
+      return false;
+    }
+
+    if (len != RFKILL_EVENT_SIZE_V1) {
+      //fprintf(stderr, "Wrong size of RFKILL event\n");
+      return false;
+    }
+
+    if(event.type == rfkill_type) {
+      ret = event.soft || event.hard;
+      break;
+    }
+  }
+
+  close(fd);
+  return ret;
+}