addseverity(3) — Linux manual page

addseverity(3)          Library Functions Manual          addseverity(3)

NAME

       addseverity - introduce new severity classes

LIBRARY

       Standard C library (libc, -lc)

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.

ATTRIBUTES

       For an explanation of the terms used in this section, see
       attributes(7).
       ┌─────────────────────────────────────┬───────────────┬─────────┐
       │ Interface                           │ Attribute     │ Value   │
       ├─────────────────────────────────────┼───────────────┼─────────┤
       │ addseverity()                       │ Thread safety │ MT-Safe │
       └─────────────────────────────────────┴───────────────┴─────────┘

STANDARDS

       GNU.

HISTORY

       glibc 2.1.  System V.

NOTES

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

SEE ALSO

       fmtmsg(3)

COLOPHON

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Linux man-pages 6.9.1          2024-05-02                 addseverity(3)

Pages that refer to this page: fmtmsg(3)

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