From MSNPiki

Contents 1 INF 1.1 Dispatch and Notification Servers 1.1.1 Request command 1.1.1.1 Description 1.1.1.2 Parameters 1.1.2 Response command 1.1.2.1 Description 1.1.2.2 Parameters 1.1.3 Example

INF

This page is historical as this command is not used in any officially supported version of MSNP.

Dispatch and Notification Servers

Sent from the client to get a list of supported authentiction systems employed by the server. One of the supported systems is selected and used in the subsequent USR command to authenticate.

This command was used in MSNP2 until MSNP8 when Tweener was introduced.

Request command

Description

INF trid

Parameters

• trid: Transaction ID

Response command

Description

INF trid system1 system2 systemN

Parameters

• systemN: Name of a supported authentication system. MSNP2 only supported MD5 challenge-response. Later versions of the protocol introduced newer authentication systems.

Example

The INF command is sent as part of an authentication attempt:

>>> INF 3
<<< INF 3 MD5

>>> USR 4 MD5 I testuser@hotmail.com
<<< USR 4 MD5 S abcdef

>>> USR 5 MD5 S b63fd5964ebaf07a474c5ff40c64c922
<<< USR 5 OK