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.
fmtmsg.h — message display structures
header shall define the following symbolic
- Source of the condition is hardware.
- Source of the condition is software.
- Source of the condition is firmware.
- Condition detected by application.
- Condition detected by utility.
- Condition detected by operating system.
- Recoverable error.
- Non-recoverable error.
- Error causing application to halt.
- Application has encountered a non-fatal fault.
- Application has detected unusual non-error condition.
- Informative message.
- No severity level provided for the message.
- Display message on standard error.
- 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
header shall also define the following symbolic
constants for use as return values for fmtmsg
- The function succeeded.
- The function failed completely.
- The function was unable to generate a message on standard
error, but otherwise succeeded.
- The function was unable to generate a console message, but
The following shall be declared as a function and may also be defined as a
macro. A function prototype shall be provided.
The following sections are informative.
int fmtmsg(long, const char *, int,
const char *, const char *, const char *);
The System Interfaces volume of POSIX.1‐2008, fmtmsg()
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
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