Newsgroups: comp.unix.aix
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!van-bc!ubc-cs!alberta!cpsc.ucalgary.ca!deraadt
From: deraadt@cpsc.ucalgary.ca (Theo de Raadt)
Subject: Re: vfork() (was Re: RS6000 questions/comments)
In-Reply-To: sef@kithrup.COM's message of 29 Jun 91 07:29:30 GMT
Message-ID: <DERAADT.91Jun29025758@fsa.cpsc.ucalgary.ca>
Organization: U of Calgary, CompSci
References: <1991Jun27.221208.14845@kithrup.COM> <8903@awdprime.UUCP>
	<351@devnull.mpd.tandem.com> <1991Jun29.072930.24674@kithrup.COM>
Distribution: usa
Date: 29 Jun 91 02:57:58
Lines: 37

In article <1991Jun29.072930.24674@kithrup.COM> sef@kithrup.COM (Sean Eric Fagan) writes:
>>Also, don't forget to use _exit() (note the leading underscore '_') INSTEAD
>>of exit() in the event the execve() fails so that you don't hose the parent's
>>stdio.
>Yep.  That's what happens when you use the hack vfork().

Sean, I'm disapointed in you.

% cat > test.c
#include <stdio.h>
main()
{
	printf("hello ");
	switch(fork()) {
	case 0:
		printf("world\n");
		exit(0);
	case -1:
		perror("fork");
		exit(1);
	default:
		exit(0);
	}
}
% cc test.c -o test
% ./test
hello % hello world
./test
hello world
hello %

That's the way that stdio works.
 <tdr.
--

SunOS 4.1.1: /usr/include/vm/as.h, Line 49    | Theo de Raadt
typo? Should the '_'  be an 's'??             | deraadt@cpsc.ucalgary.ca