The Open Group Base Specifications Issue 7, 2018 edition
IEEE Std 1003.1-2017 (Revision of IEEE Std 1003.1-2008)
Copyright © 2001-2018 IEEE and The Open Group

NAME

fmtmsg.h - message display structures

SYNOPSIS

[XSI] [Option Start] #include <fmtmsg.h> [Option End]

DESCRIPTION

The <fmtmsg.h> header shall define the following symbolic constants:

MM_HARD
Source of the condition is hardware.
MM_SOFT
Source of the condition is software.
MM_FIRM
Source of the condition is firmware.
MM_APPL
Condition detected by application.
MM_UTIL
Condition detected by utility.
MM_OPSYS
Condition detected by operating system.
MM_RECOVER
Recoverable error.
MM_NRECOV
Non-recoverable error.
MM_HALT
Error causing application to halt.
MM_ERROR
Application has encountered a non-fatal fault.
MM_WARNING
Application has detected unusual non-error condition.
MM_INFO
Informative message.
MM_NOSEV
No severity level provided for the message.
MM_PRINT
Display message on standard error.
MM_CONSOLE
Display message on system console.

The table below indicates the null values and identifiers for fmtmsg() arguments. The <fmtmsg.h> header shall define the symbolic constants in the Identifier column, which shall have the type indicated in the Type column:

Argument

Type

Null-Value

Identifier

label

char *

(char*)0

MM_NULLLBL

severity

int

0

MM_NULLSEV

class

long

0L

MM_NULLMC

text

char *

(char*)0

MM_NULLTXT

action

char *

(char*)0

MM_NULLACT

tag

char *

(char*)0

MM_NULLTAG

The <fmtmsg.h> header shall also define the following symbolic constants for use as return values for fmtmsg():

MM_OK
The function succeeded.
MM_NOTOK
The function failed completely.
MM_NOMSG
The function was unable to generate a message on standard error, but otherwise succeeded.
MM_NOCON
The function was unable to generate a console message, but otherwise succeeded.

The following shall be declared as a function and may also be defined as a macro. A function prototype shall be provided.

int fmtmsg(long, const char *, int,
    const char *, const char *, const char *);


The following sections are informative.

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

XSH fmtmsg

CHANGE HISTORY

First released in Issue 4, Version 2.

Issue 7

This reference page is clarified with respect to macros and symbolic constants.

End of informative text.

 

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