source: examples/tracedump/tcp_1720.cc @ 505c421

// h323
#include <stdio.h>
#include <stdint.h>
#include <dlfcn.h>
#include <map>
#include "tracedump.h"
#include <netinet/tcp.h>
#include <netinet/in.h>
#include "asn1.h"

#define SAFE(x) \
        ((unsigned int)len>=((char*)&tcp->x-(char*)tcp+sizeof(tcp->x))) 
#define DISPLAY_EXP(x,fmt,exp) \
        if (SAFE(x)) \
                printf(fmt,exp); \
        else \
                return; 

#define DISPLAY(x,fmt) DISPLAY_EXP(x,fmt,tcp->x)

#define DISPLAYS(x,fmt) DISPLAY_EXP(x,fmt,htons(tcp->x))
#define DISPLAYL(x,fmt) DISPLAY_EXP(x,fmt,htonl(tcp->x))
#define DISPLAYIP(x,fmt) DISPLAY_EXP(x,fmt,inet_ntoa(*(struct in_addr*)&tcp->x))

extern "C"
void decode(int link_type,char *packet,int len)
{
        ASN asn;
        if (len<=0)
                return;
        asn.feed(packet,len);
        asn.getEncoding()->toString();
        return;
}