For this set up of tasks, you should compile the C code inside the host VM$,$ and then run the code inside the container. You can use the "docker $cp"$ command to copy a file from the host VM to a container. See the following example $($there is no need to type the docker ID in full$)$:

$ dockps

f $4501$ a $488$ a $69$ hostA$-10\mathrm{.}9\mathrm{.}0\mathrm{.}5$

$85058$ cbdee $62$ hostB$-10\mathrm{.}9\mathrm{.}0\mathrm{.}6$

$24$ cbc$879$e $371$ seed$-$attacker

$//$ Copy a$.$out to the seed$-$attacker container's $/$ tmp folder

$ docker cp a$.$out $24cbc879e371\frac{\text{:}}{t}mp$

$4\mathrm{.}1$ Task $2\mathrm{.}1$: Writing Packet Sniffing Program

Sniffer programs can be easily written using the pcap library. With pcap, the task of sniffers becomes invoking a simple sequence of procedures in the pcap library. At the end of the sequence, packets will be put in buffer for further processing as soon as they are captured. All the details of packet capturing are handled by the pcap library. The SEED book provides a sample code, showing how to write a simple sniffer program using pcap. We include the sample code in the following $($see the book for detailed explanation$).$

#include $)$

$(const{u}_c$har $***$ packet$\})$

$(\{)$

$(const{u}_c$har $***$ packet$\})$

$(\{$