Understanding the Diagnostic Subsystem for AIX

ipl_mode

Purpose

Returns the state of the diagnostic IPL mode.

Syntax

#include    <diag/diag.h>
 
int ipl_mode ( source )
int source;

Description

The ipl_mode subroutine returns the state of the diagnostic IPL mode, and the IPL source.

Parameters

Parameter	Description
source	Set according to IPL source: If the value of the environment variable DIAG_IPL_SOURCE is NULL or IPL_SOURCE_DISK or IPL_SOURCE_LAN, then the value of source will be set to DIAG_FALSE (0). If the value of the environment variable DIAG_IPL_SOURCE is IPL_SOURCE_CDROM or IPL_SOURCE_TAPE, then the value of source will be set to DIAG_TRUE (1).

Parameter

Description

source

Set according to IPL source:

If the value of the environment variable DIAG_IPL_SOURCE is NULL or IPL_SOURCE_DISK or IPL_SOURCE_LAN, then the value of source will be set to DIAG_FALSE (0).

If the value of the environment variable DIAG_IPL_SOURCE is IPL_SOURCE_CDROM or IPL_SOURCE_TAPE, then the value of source will be set to DIAG_TRUE (1).

Return Value

The ipl_mode subroutine returns one of the following values:

Return Value	Description
1 EXENV_IPL	Diagnostics invoked during IPL
2 EXENV_STD	Standalone Diagnostics, Online Service, or Online Maintenance
4 EXENV_CONC	Online Concurrent Diagnostics