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/* done.c -- terminate the program
*
* This code is Copyright (c) 2002, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
*/
#include "h/mh.h"
#include "done.h"
#include "error.h"
static void (*altexit)(int) NORETURN = exit;
/* set_done changes the path of done() from exit(3), or back to exit(3).
* Anything else will work, but a standard-error warning will report the
* old non-exit() value has been trampled. */
void
set_done(void (*new)(int) NORETURN)
{
generic_pointer gpo, gpn;
if (altexit != exit && new != exit) {
gpo.f = (void (*)(void))altexit;
gpn.f = (void (*)(void))new;
inform("altexit trampled: %p %p", gpo.v, gpn.v);
}
altexit = new;
}
void NORETURN
done(int status)
{
(*altexit)(status);
}
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