This manual page is part of the POSIX Programmer's Manual. The Linux
implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior), or
the interface may not be implemented on Linux.
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.
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1, 2013 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 7, Copyright (C) 2013 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
applied.) In the event of any discrepancy between this version and
the original IEEE and The Open Group Standard, the original IEEE and
The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.unix.org/online.html .
Any typographical or formatting errors that appear in this page are
most likely to have been introduced during the conversion of the
source files to man page format. To report such errors, see
IEEE/The Open Group 2013 fmtmsg.h(0P)