On Jul 12, 2005, at 3:42 AM, Thinh Ho wrote:
Thanks for your reply!
Extracting the data is where I am stuck...
The struck of option is below:
typedef struct option
{
byte byte1;
byte byte2;
byte byte3;
} option;
An option might have fewer than, or more than, three bytes.
For that reason, ne
Thanks for your reply!
Extracting the data is where I am stuck...
The struck of option is below:
typedef struct option
{
byte byte1;
byte byte2;
byte byte3;
} option;
I created a method in main to display the timestamp:
void display_tsopt(const u_char *pkt_data, tcp_header* tcp, long &val, long
Thinh Ho wrote:
Is there a struct for the options field of tcp_header?
No. That field is variable in both length and contents, so there can't
be a C-language data structure for it (and I don't know whether any
language has a concept of "data structure", in the sense in which it's
used in la
Is there a struct for the options field of tcp_header?
On 7/9/05, rootclown <[EMAIL PROTECTED]> wrote:
> dear Thinh Ho:
> get tcp header with the following way
>
> struct ethhdr *eth;
> struct iphdr *ip;
> struct tcphdr *tcp;
>
> eth=(struct ethhdr *)packet;
> ip=(struc
dear Thinh Ho:
get tcp header with the following way
struct ethhdr *eth;
struct iphdr *ip;
struct tcphdr *tcp;
eth=(struct ethhdr *)packet;
ip=(struct iphdr *)(eth+1);
tcp=(struct tcphdr *)((u_char *)ip+(ip->ihl<<2));
and you can see linux/tcp.h for deta
Hello,
I am new to the mailing list and also new to pcap, tcpdump, and tcp, in general.
I am trying to capture tcp packets and extract/print all its fields in
readable format. The sniffer works and I was able to print out the
whole packet (in hex) and confirmed it with Ethereal. The struct I
have f
