Diff: main.cpp

Revision:

101:0a15de2ca623

Parent:

100:3f3a017684c5

Child:

102:a89c55672170

diff -r 3f3a017684c5 -r 0a15de2ca623 main.cpp
--- a/main.cpp	Sun Jul 30 02:22:59 2017 +0000
+++ b/main.cpp	Mon Jul 31 05:31:01 2017 +0000
@@ -31,7 +31,6 @@
 // See also https://en.wikipedia.org/wiki/Point-to-Point_Protocol_daemon
 
 // Ok, enough talking, time to check out some code!!
-
 #include "mbed.h"
 
 // The #define below enables/disables a second (OPTIONAL) serial port that prints out interesting diagnostic messages.
@@ -169,7 +168,6 @@
     return ppp.crc;
 }
 
-
 // fill our own receive buffer with characters from the PPP serial port
 void fillbuf()
 {
@@ -626,11 +624,6 @@
     return n; // total byte size of our response
 }
 
-
-
-
-
-
 void tcpHandler()
 {
     // IP header
@@ -729,7 +722,6 @@
     } // switch
 
     // The TCP flag handling is now done
-
     // first we swap sourc and destination TCP addresses and insert the new ack and seq numbers
 
     char tempHold[12]; // it's 12 long because we later reuse it when building the TCP pseudo-header
@@ -742,7 +734,6 @@
     memcpy(dsttcp, tempHold,2); // swap ip port source/dest
 
 sendTCP:
-
     acktcp[0]=ack_out>>24;
     acktcp[1]=ack_out>>16;
     acktcp[2]=ack_out>>8;
@@ -756,7 +747,6 @@
     flagbitstcp[1] = flagsOut; // update the TCP flags
 
     // increment the ip ident number
-
     ppp.ident++; // get next ident number for our packet
     ident[0] = ppp.ident>>8;
     ident[1] = ppp.ident>>0; // insert OUR ident
@@ -769,7 +759,6 @@
     tcpSize = headerSizeTCP + dataLen; // tcp packet size
 
     // the header is all set up, now do the IP and TCP checksums
-
     headercheck[0]=0; // IP header checksum
     headercheck[1]=0; // IP header checksum
     headerCheckSum(); // calculate the IP header checksum
@@ -786,7 +775,6 @@
     memset( pseudoHeader+11, tcpSize, 1); // size of IP data (TCP packet size)
 
     // pseudo-header built, now we can calculate TCP checksum
-
     checksumtcp[0]=0;
     checksumtcp[1]=0;
     unsigned int pseudoHeaderSum=dataCheckSum((unsigned char *)pseudoHeader,tcpSize+12); // calculate the TCP checksum starting at the pseudo-header
@@ -801,10 +789,8 @@
         flagsOut = TCP_FLAG_ACK | TCP_FLAG_FIN; // tell them we are also finished
         goto sendTCP; // send our final packet for this conversation.
     }
-
     dumpHeaderIP();
     dumpHeaderTCP();
-
 }
 
 void dumpDataTCP()
@@ -1005,11 +991,10 @@
     xx.puts("\x1b[2J\x1b[HReady\n"); // VT100 code for clear screen & home
 #endif
     pppInitStruct(); // initialize all the PPP properties
-
     while(1) {
         scanForConnectString(); // respond to connect command from windows dial up networking
         while(ppp.online) {
             wait_for_HDLC_frame();
         }
     }
-}
+}
\ No newline at end of file