Date: Mon, 17 Jun 1996 21:49:26 -0700 From: Sean Eric Fagan <sef@kithrup.com> To: michaelh@cet.co.jp, smpatel@umiacs.umd.edu Cc: hackers@freebsd.org Subject: Re: vfork cow? Message-ID: <199606180449.VAA06907@kithrup.com>
next in thread | raw e-mail | index | archive | help
>1- Many old programs use vfork()'s "feature" of allowing the child access > to the parent's address space. While it's plain wrong for a > program to exploit this side-effect of vfork(), it's already done > (and hard to undo). Any such program will not work under FreeBSD, because it doesn't do this! Also, I don't think "many" programs ever depended on this. csh did, and it was fixed a long time ago. (The fact that the 4.2 allowed the child process to modify its parent's memory was a bug, and was listed as such in the manpage.) Sean.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199606180449.VAA06907>