Date: Mon, 31 May 2010 23:10:03 GMT From: Garrett Cooper <yanefbsd@gmail.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/147226: read(fd, buffer, len) returns -1 immediately, if len >=2147483648 Message-ID: <201005312310.o4VNA3ss070152@freefall.freebsd.org>
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The following reply was made to PR kern/147226; it has been noted by GNATS. From: Garrett Cooper <yanefbsd@gmail.com> To: Bruce Cran <bruce@cran.org.uk> Cc: bug-followup@freebsd.org Subject: Re: kern/147226: read(fd, buffer, len) returns -1 immediately, if len >=2147483648 Date: Mon, 31 May 2010 16:06:38 -0700 On Mon, May 31, 2010 at 8:30 AM, Bruce Cran <bruce@cran.org.uk> wrote: > The following reply was made to PR kern/147226; it has been noted by GNAT= S. > > From: Bruce Cran <bruce@cran.org.uk> > To: bug-followup@FreeBSD.org, eugene.kharitonov@gmail.com > Cc: > Subject: Re: kern/147226: read(fd, buffer, len) returns -1 immediately, = =A0if > =A0len >=3D2147483648 > Date: Mon, 31 May 2010 16:21:05 +0100 > > =A0This actually looks like a 64-bit bug. > =A0http://opengroup.org/onlinepubs/007908775/xsh/read.html says that up t= o > =A0SSIZE_MAX bytes must be accepted, whereas FreeBSD only accepts up to > =A0INT_MAX bytes. The point being that SSIZE_MAX is INT_MAX on 32-bit archs and LONG_MAX on 64-bit archs. Cheers, -Garrett
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