Linux SL Integration with other software

--- a
+++ b/SimpleSocketExample/main.c
@@ -0,0 +1,108 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <arpa/inet.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <stdint.h>
+#include <string.h>
+#include <math.h>
+
+ void printUsage();
+
+ typedef int bool;
+ #define true 1
+ #define false 0
+
+int main( int argc, const char* argv[] )
+{
+/* ********************************************
+ * Actual socket code
+ **********************************************/
+
+int socketfd; // socket handle
+
+// open the socket
+// http://man7.org/linux/man-pages/man2/socket.2.html
+socketfd = socket(AF_INET, // IPv4
+                  SOCK_STREAM, // a TCP connection
+                  6); // protocol. 6 is TCP
+
+if (!socketfd)
+{
+  printf("opening socket failed\n");
+  return 1;
+}
+
+// no need to bind this one. CODESYS is already bound so it is acting as a server.
+// We are a client, so we don't need a fixed address/port to be reached at
+
+// connect to CODESYS
+
+// first we need to create the struct where we put the connection info
+struct sockaddr_in saCodesys;
+// init the struct
+bzero((char *) &saCodesys, sizeof(saCodesys));
+// put in the information
+saCodesys.sin_family = AF_INET; // IPv4
+saCodesys.sin_port = htons(1200); // CODESYS port
+
+// Convert IPv4 address from text to binary form
+  if(inet_pton(AF_INET, "127.0.0.1", (struct sockaddr *)&saCodesys.sin_addr)<=0)
+  {
+      printf("Invalid address/ Address not supported \n");
+      // close the socket
+      close(socketfd);
+      return 2;
+  }
+
+  if (connect(socketfd, (const struct sockaddr *)&saCodesys, sizeof(saCodesys)) < 0)
+  {
+    printf("Connection Failed %d\n", errno);
+    // close the socket
+    close(socketfd);
+    return 3;
+  }
+
+/* *************************************
+ * Sending data
+ ***************************************/
+    // super smart A.I. algorithm putting out production targets once a second
+    uint16_t uiProductionTarget = 0;
+    int counter = 0;
+
+    while (1)
+    {
+      uiProductionTarget = (sin(counter / 100.0) + 1) * 100;
+
+      if (send(socketfd, &uiProductionTarget, sizeof(uiProductionTarget), 0 /* no flags */) < 0)
+      {
+        printf("send failed. Ending.\n");
+        break;
+      }
+      else
+      {
+        printf("sent target: %d\n", uiProductionTarget);
+      }
+
+      sleep(1); // wait a ms before doing the math again.
+      counter ++;
+    }
+
+
+    // close the socket
+    close(socketfd);
+    printf("closing down.\n", );
+
+    return 0;
+}
+
+void printUsage()
+{
+  printf("just run it\n");
+}