busybox/libbb/fflush_stdout_and_exit.c
Denis Vlasenko 99912ca733 audit small applets and mark some of them as NOFORK.
Put big scary warnings in relevant places.
2007-04-10 15:43:37 +00:00

26 lines
641 B
C

/* vi: set sw=4 ts=4: */
/*
* fflush_stdout_and_exit implementation for busybox
*
* Copyright (C) 2003 Manuel Novoa III <mjn3@codepoet.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
/* Attempt to fflush(stdout), and exit with an error code if stdout is
* in an error state.
*/
#include "libbb.h"
// TODO: make it safe to call from NOFORK applets
// Currently, it can exit(0). Even if it is made to do longjmp trick
// (see sleep_and_die internals), zero cannot be passed thru this way!
void fflush_stdout_and_exit(int retval)
{
if (fflush(stdout))
sleep_and_die();
exit(retval);
}