Shareef Jalloq / ntp-client

A port and bug fix of Alix955/code/ntp-client. The socket would hang as it was defined both with a timeout and as blocking.

Files at this revision

API Documentation at this revision

Revision 1:099750f42b02, committed 2018-12-07

Comitter:
Alix955
Date:
Fri Dec 07 13:07:56 2018 +0000
Parent:
0:3c1170035e2b
Child:
2:a3aec199dc7c
Commit message:
ntp client stuff;

Changed in this revision

NTPClient.cpp Show annotated file Show diff for this revision Revisions of this file
NTPClient.h Show annotated file Show diff for this revision Revisions of this file 
--- a/NTPClient.cpp	Tue Dec 04 17:36:03 2018 +0000
+++ b/NTPClient.cpp	Fri Dec 07 13:07:56 2018 +0000
@@ -20,6 +20,7 @@
 
     if (ret_gethostbyname < 0) {
         // Network error on DNS lookup
+        printf("Error on DNS lookup : %d\n" , ret_gethostbyname);
         return ret_gethostbyname;
     }
 
@@ -44,9 +45,11 @@
     } else {
         if (n < 0) {
             // Network error
+            printf("Network error: %d\n", n);
             return n;
         } else {
             // No or partial data returned
+            printf("No or partial data returned: -1");
             return -1;
         }
     }

--- a/NTPClient.h	Tue Dec 04 17:36:03 2018 +0000
+++ b/NTPClient.h	Fri Dec 07 13:07:56 2018 +0000
@@ -1,14 +1,18 @@
-#include "mbed.h"
+#ifndef _NTPCLIENT_
+#define _NTPCLIENT_
 
-#define NTP_DEFULT_NIST_SERVER_ADDRESS "2.pool.ntp.org"
-//#define NTP_DEFULT_NIST_SERVER_ADDRESS "0.europe.pool.ntp.org"
+#include "mbed.h"
+//use nslookup 2.pool.ntp.org in cmd to find ip address
+
+//#define NTP_DEFULT_NIST_SERVER_ADDRESS "2.pool.ntp.org"
+#define NTP_DEFULT_NIST_SERVER_ADDRESS "109.74.206.120"
 #define NTP_DEFULT_NIST_SERVER_PORT 123
 
 class NTPClient {
     public:
         NTPClient(NetworkInterface *iface);
         void set_server(char* server, int port);
-        time_t get_timestamp(int timeout = 15000);
+        time_t get_timestamp(int timeout = 10000);
 
     private:
         NetworkInterface *iface;
@@ -16,4 +20,6 @@
         int nist_server_port;
 
         uint32_t ntohl(uint32_t num);
-};
\ No newline at end of file
+};
+
+#endif