Family: id
Authors: Luke Mewburn , modified by Kevin S Braunsdorf
Mail: [email protected], [email protected]
Version: 5.1
Bugs: Can block forever.

Introduction

RFC 1413 describes how to find out which login might own a TCP/IP connection (since 931 has been obsoleted). This is mostly useful for audit logs because it might be encoded or abstracted in some way

Your application should not depend on this routine as the only source of authentication (the login name found might not be a plain-text login name).

Configuration

A C Preprocessor macro is the only tuning one might do (for testing).

IDENT_PORT: The default TAP port, usually 113.

Provides

A single call to get the ident return value.

int ident_client(struct sockaddr_in peeraddr, struct sockaddr_in ouraddr, char pcIdent[1024]): Uses the two socaddr_in's to request a TAP, returns the TAP data in the 1k buffer provided.
main: A simple reflector test driver that listens on port 7098 for telnet connections. It TAPs them and outputs the incoming login name.

To Do List

Because this can block (forever) it should be async, or take a timeout value. Maybe set as a global variable? Not added to the parameter list, for sure.

$Id: identd.html,v 6.5 2012/08/30 14:53:51 ksb Exp $