007 shell Attempt

After obtaining the source code of 007 shell, I couldn't compile the source code. After reading the source code, I corrected a small bug and compiled OK.
Run "./007 shell-s" on one Linux and "./007 shell-c-h ip_of_linux" on the other linux2 ",
A tunnel is established, and the client can control the server.
ICMP claimed to be able to pass through the firewall, so I wanted to see if it could pass through the firewall of my XP system.
Compile 007 shell in cygwin and prompt "the type of field 'ICMP 'is incomplete". The ICMP. h In cygwin is blank.
Sock_raw is used in 007 shell. Some online experts say, "Winsock is used to estimate raw_sock-related items in windows .".
...
It seems that my understanding of sock programming is far from enough.
When you are in a mood, add a firewall to Linux and test whether the firewall can penetrate.