ON_EXIT(3) Linux Programmers Manual ON_EXIT(3)
on_exit - register a function to be called at normal process termina
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
The on_exit() function registers the given function to be called at
normal process termination, whether via exit(3) or via return from the
programs main(). The function is passed the argument to exit(3) and
the arg argument from on_exit().
The on_exit() function returns the value 0 if successful; otherwise it
returns a non-zero value.
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.
_exit(2), atexit(3), exit(3)
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)