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ON_EXIT(3)                 Linux Programmer's Manual                ON_EXIT(3)



NAME
       on_exit  -  register a function to be called at normal process termina-
       tion

SYNOPSIS
       #include <&lt;stdlib.h>&gt;

       int on_exit(void (*function)(int , void *), void *arg);

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

       on_exit(): _BSD_SOURCE || _SVID_SOURCE

DESCRIPTION
       The on_exit() function registers the given function  to  be  called  at
       normal  process termination, whether via exit(3) or via return from the
       program's main().  The function is passed the argument to  exit(3)  and
       the arg argument from on_exit().

RETURN VALUE
       The  on_exit() function returns the value 0 if successful; otherwise it
       returns a non-zero value.

CONFORMING TO
       This function comes from SunOS 4, but is also present in  libc4,  libc5
       and glibc.  It no longer occurs in Solaris (SunOS 5).  Avoid this func-
       tion, and use the standard atexit(3) instead.

SEE ALSO
       _exit(2), atexit(3), exit(3)

COLOPHON
       This page is part of release 3.05 of the Linux  man-pages  project.   A
       description  of  the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.



GNU                               2007-07-26                        ON_EXIT(3)