Simple Tunnel Working on C

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Simple Tunnel Working on C

It can be used for tunneling sockets without exposing your personal IP, when having another point of reference like a server.

Compilation using GCC

This software is known to have run for me under Linux/Intel, Solaris/Intel, Solaris/Sparc, SunOS/Sparc.

 Linux:   gcc -O2 -Wall                          tunnel.c -o tunnel
 Solaris: gcc -O2 -Wall -lsocket -lnsl -DSOLARIS tunnel.c -o tunnel
 SunOS:   gcc -O2 -Wall                -DSUNOS   tunnel.c -o tunnel

Implementation

help menu

 tunnel -h

Example of HTTPS website(fictional)

./tunnel -Lr <ip_forClient_2_connect_as_public>:<public_port> <private_ip_or_local_ip_to_expose>:<private_port>

./tunnel -Lr 31.220.9.177:8878 23.87.270.189:5001

then open on your navigator "https://31.220.9.177:8878" and you will be taken to the https website that you are tunneling.

Diagram of Connection

  

Code(taken from https://www.coelho.net/ ):