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Date: | Fri, 17 Jan 2014 13:13:01 -0700 |
From: | Eric Blake <eblake AT redhat DOT com> |
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To: | cygwin AT cygwin DOT com |
Subject: | Re: fork() + file descriptor bug in 1.7.27(0.271/5/3) 2013-12-09 11:54 |
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--eoF8LO2oOmJWghcf2UBPS41C893Bp85Eg Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 01/15/2014 08:28 AM, tednolan AT bellsouth DOT net wrote: > Well, all I can say in this instance, is that arguably conforming to > the bare letter of the standard (if that's in fact what is happening) > is not "the right thing". People certainly don't expect that stdio > file pointers that exist at fork() time and which are never "used" by a > child will be reset in the parent. I mean, if they can't even be fclose(= )-ed > to take them out of the picture, what chance have you got? -:) >=20 > FWIW, FreeBSD, Linux and Solaris all compile and run the test program > with the behavoir I expect.. Rather, FreeBSD and Linux share the same behavior of having intuitive action of not resetting the underlying fd position, but violating POSIX in the process; while Solaris DOES reset the fd and would expose the same undefined behavior in the sample program. --=20 Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --eoF8LO2oOmJWghcf2UBPS41C893Bp85Eg Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBCAAGBQJS2Y7NAAoJEKeha0olJ0NqF8EH/2EY2NeOP2dZL/u1IOnq7rFJ jpt9BrNUoanJlPagHK61zpQm0wzdMiIW7bTyqFOW9uw/4Sg5rHu8I2Wa1fOLUhVq Bh8TDsR/9Un4ClPugPdiX9MkTWJAiJ+B/dLDaB9PtM5BeAnSMW5vJgsEKIZXLuOn BC8qfaJCawm0sJVOgXowowkRZMV9MJNGuDb8KzhanVA2aXXx6ztz0s4svdd53vjs ovgDjzAlijXihCc6A5l5hqnvkVFuphaCvzhD6u9WsdQZE37UcWmSzS2dWwqOUleM /wPJBZChcL3OxFq4wGZ2MFX1yOe85b7dtIhBg4i7f3cjSB3ZvYaxTbw0pau5MYI= =MGFk -----END PGP SIGNATURE----- --eoF8LO2oOmJWghcf2UBPS41C893Bp85Eg--
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