Category : Network Files
Archive   : KA9Q.ZIP
Filename : UDPDUMP.C

 
Output of file : UDPDUMP.C contained in archive : KA9Q.ZIP
#include
#include "global.h"
#include "mbuf.h"
#include "netuser.h"
#include "internet.h"
#include "udp.h"

extern FILE *trfp;

/* Dump a UDP header */
void
udp_dump(bpp,source,dest,check)
struct mbuf **bpp;
int32 source,dest;
int check; /* If 0, bypass checksum verify */
{
struct udp udp;
struct pseudo_header ph;
int16 csum;

if(bpp == NULLBUFP || *bpp == NULLBUF)
return;

printf(trfp,"UDP:");

/* Compute checksum */
ph.source = source;
ph.dest = dest;
ph.protocol = UDP_PTCL;
ph.length = len_mbuf(*bpp);
if((csum = cksum(&ph,*bpp,ph.length)) == 0)
check = 0; /* No checksum error */

ntohudp(&udp,bpp);

printf(trfp," %u->%u",udp.source,udp.dest);
printf(trfp," len %u",udp.length);
if(udp.checksum == 0)
check = 0;
if(check)
printf(trfp," CHECKSUM ERROR (%u)",csum);

printf(trfp,"\n");
}



  3 Responses to “Category : Network Files
Archive   : KA9Q.ZIP
Filename : UDPDUMP.C
”

  1. Daniel says:
    January 27, 2013 at 3:59 pm

    Very nice! Thank you for this wonderful archive. I wonder why I found it only now. Long live the BBS file archives!

  2. Joshie says:
    March 18, 2014 at 4:57 pm

    This is so awesome! 😀 I’d be cool if you could download an entire archive of this at once, though.

  3. DiskingRound says:
    January 14, 2015 at 10:57 pm

    But one thing that puzzles me is the “mtswslnkmcjklsdlsbdmMICROSOFT” string. There is an article about it here. It is definitely worth a read: http://www.os2museum.com/wp/mtswslnk/