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addseverity(3)


NAME

   addseverity - introduce new severity classes

SYNOPSIS

   #include <fmtmsg.h>

   int addseverity(int severity, const char *s);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

   addseverity():
       Since glibc 2.19:
           _DEFAULT_SOURCE
       Glibc 2.19 and earlier:
           _SVID_SOURCE

DESCRIPTION

   This function allows the introduction of new severity classes which can
   be addressed by the severity argument of the  fmtmsg(3)  function.   By
   default,  that  function  knows only how to print messages for severity
   0-4 (with strings (none),  HALT,  ERROR,  WARNING,  INFO).   This  call
   attaches the given string s to the given value severity.  If s is NULL,
   the severity class with the numeric value severity is removed.   It  is
   not  possible  to  overwrite  or  remove  one  of  the default severity
   classes.  The severity value must be nonnegative.

RETURN VALUE

   Upon success, the value MM_OK is  returned.   Upon  error,  the  return
   value  is MM_NOTOK.  Possible errors include: out of memory, attempt to
   remove a nonexistent or default severity class.

VERSIONS

   addseverity() is provided in glibc since version 2.1.

ATTRIBUTES

   For  an  explanation  of  the  terms  used   in   this   section,   see
   attributes(7).

   
   Interface      Attribute      Value   
   
   addseverity()  Thread safety  MT-Safe

CONFORMING TO

   This function is not specified in the X/Open Portability Guide although
   the fmtmsg(3) function is.  It is available on System V systems.

NOTES

   New severity classes can also  be  added  by  setting  the  environment
   variable SEV_LEVEL.

SEE ALSO

   fmtmsg(3)

COLOPHON

   This  page  is  part of release 4.09 of the Linux man-pages project.  A
   description of the project, information about reporting bugs,  and  the
   latest     version     of     this    page,    can    be    found    at
   https://www.kernel.org/doc/man-pages/.



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