Socks proxy server written in one C file. Supports socks4, socks4a and socks5 protocols without binding and udp stuff. Can be used as example how to write your own.

Socks5 proto

Socks5 userpass auth proto

Socks4 proto

Socks4a proto

Every OS which supports POSIX

1. TCP port binding
2. UDP port binding

[-h] - print usage

[-n PORT] - set port to listen

[-a AUTHTYPE] - set authtype: 0 for NOAUTH, 2 for USERPASS

[-u USERNAME] - set username for userpass authtype

[-p PASSWORD] - set password for userpass authtype

[-l LOGFILE] - set file for logging output

No additional requirements, only compiler or crosscompiler needed

make
make test
./proxy