Differences for page hping recv -- hping network security tool

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Differences for page hping recv

Current version compared with version Sat Oct 16 16:32:05 GMT 2004

...
  subcommand behaviour to return as soon as `count` packets were
  already received. A special `count` value of zero means
  to collect an infinite number of packets (at least until the
- timeout is not reached).
+ timeout is not reached). 
  
  The optional *-hexdata* switch specify to return packets payload
  as hex digits instead of quoted strings. To use *-hexdata* is encouraged
...

The following is the old page content

{hping recv ?-hexdata? `interface` `?timeout?` `?count?`}

Receive packets as a [Tcl] list in the [APD] format. `interface` is
the interface from wich to read packets, `timeout` is an optional
argument to set a timeout value in milliseconds, with the
exception that a zero timeout means to return as soon as possible
the packets that was already in queue when the [hping recv] subcommand

was called, while a -1 `timeout` value means to expect forever
for packets (no timeout). If `timeout` is specified, an additional
(optional) `count` parameter can be specified, modifing the recv
subcommand behaviour to return as soon as `count` packets were
already received. A special `count` value of zero means
to collect an infinite number of packets (at least until the
timeout is not reached).

The optional *-hexdata* switch specify to return packets payload
as hex digits instead of quoted strings. To use *-hexdata* is encouraged
for all the applications, but the ones that needs to display packets
in a human readable format.

For default the timeout is set to -1, and count to 1 (in other
words hping will wait forever if no packets are available, but
will return when the first packet is received).

===Examples===

# Capture a packet from eth0
 hping3.0.0-alpha> hping recv eth0
 {ip(ihl=5,ver=4,tos=02,totlen=58,id=63474,fragoff=0,mf=0,df=1,rf=0,ttl=64,proto=6,cksum=9ecb,saddr=192.168.1.6,daddr=213.82.224.41)+tcp(sport=33295,dport=110,seq=2486133764,ack=2745754339,x2=0,off=8,flags=pa,win=5840,cksum=7a69,urp=0)+tcp.nop()+tcp.nop()+tcp.timestamp(val=1021017,ecr=355869116)+data(str=STAT\0d\0a)}

# Caputure a packet using the hex format for data payload
 hping3.0.0-alpha> hping recv -hexdata eth0
 ip(ihl=5,ver=4,tos=00,totlen=84,id=2435,fragoff=0,mf=0,df=0,rf=0,ttl=49,proto=1,cksum=25be,saddr=216.239.39.99,daddr=192.168.1.6)+icmp(type=0,code=0,id=55048,seq=512)+data(hex=3f565c1b000d7e4008090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d2e2f3031323334353637)

# Wait for all the packets received in 5 seconds, and print how many they are
 hping3.0.0-alpha> puts [llength [hping recv eth0 5000 0]]
 36