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AIX Version 4.3 Kernel and Subsystems Technical Reference, Volume 1

looutput Kernel Service

Purpose

Sends data through a software loopback interface.

Syntax

#include <sys/types.h>
#include <sys/errno.h>
int looutput (ifp, m0, dst)
struct  ifnet *ifp;
struct  mbuf *m0;
struct  sockaddr *dst;

Parameters

ifp Specifies the address of an ifnet structure describing the software loopback interface.
m0 Specifies an mbuf chain containing output data.
dst Specifies the address of a sockaddr structure that specifies the destination for the data.

Description

The looutput kernel service sends data through a software loopback interface. The data in the m0 parameter is passed to the input handler of the protocol specified by the dst parameter.

Execution Environment

The looutput kernel service can be called from either the process or interrupt environment.

Return Values

0 Indicates that the data was successfully sent.
ENOBUFS Indicates that resource allocation failed.
EAFNOSUPPORT Indicates that the address family specified by the dst parameter is not supported.

Implementation Specifics

The looutput kernel service is part of Base Operating System (BOS) Runtime.

Related Information

The loifp kernel service.

Network Kernel Services in AIX Kernel Extensions and Device Support Programming Concepts.

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