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fmtmsg.h(0P)               POSIX Programmer's Manual              fmtmsg.h(0P)
PROLOG
       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.
NAME
       fmtmsg.h -- message display structures
SYNOPSIS
       #include <fmtmsg.h>
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 con-
       stants 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
       The System Interfaces volume of POSIX.1-2008, fmtmsg()
COPYRIGHT
       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 Electri-
       cal  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  https://www.ker-
       nel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group                  2013                         fmtmsg.h(0P)