Cleanup and organize a lot of Loader code.

src/loader/utils/helpers.c

@@ -1,12 +1,40 @@
 #include <loader/utils/helpers.h>
 
+/**
+ * Prints help menu.
+ * 
+ * @return void
+ */
+void PrintHelpMenu()
+{
+    fprintf(stdout, "Usage:\n" \
+        "--config -c => Config file location (default is /etc/xdpfw/xdpfw.conf).\n" \
+        "--offload -o => Tries to load the XDP program in hardware/offload mode.\n" \
+        "--skb -s => Force the XDP program to load with SKB mode instead of DRV.\n" \
+        "--time -t => How long to run the program for in seconds before exiting. 0 or not set = infinite.\n" \
+        "--list -l => Print config details including filters (this will exit program after done).\n" \
+        "--help -h => Print help menu.\n");
+}
+
+/**
+ * Handles signals from user.
+ * 
+ * @param code Signal code.
+ * 
+ * @return void
+ */
+void SignalHndl(int code)
+{
+    cont = 0;
+}
+
 /**
  * Parses an IP string with CIDR support. Stores IP in network byte order in ip.ip and CIDR in ip.cidr.
  * 
  * @param ip The IP string.
  * 
  * @return Returns an IP structure with IP and CIDR. 
-*/
+ */
 ip_range_t ParseIpCidr(const char *ip)
 {
     ip_range_t ret = {0};
@@ -22,7 +50,7 @@ ip_range_t ParseIpCidr(const char *ip)
 
         if (token)
         {
-            ret.cidr = (unsigned int) strtoul(token, NULL, 10);
+            ret.cidr = (u8) strtoul(token, NULL, 10);
         }
     }