Date: Wed, 20 Jun 2007 14:40:40 +0200 From: Stefan Farfeleder <stefan@fafoe.narf.at> To: Daniel Eischen <deischen@freebsd.org> Cc: current@freebsd.org Subject: Re: socklen_t (Re: Multicast problems [PATCH]) Message-ID: <20070620124040.GC929@lizard.fafoe.narf.at> In-Reply-To: <Pine.GSO.4.64.0706200824530.4695@sea.ntplx.net> References: <46765CB9.9020105@incunabulum.net> <Pine.GSO.4.64.0706180833080.23884@sea.ntplx.net> <4676C30E.7040300@incunabulum.net> <Pine.GSO.4.64.0706181344060.24865@sea.ntplx.net> <4676C952.5000607@incunabulum.net> <4676D168.3050502@incunabulum.net> <4678529A.3080308@incunabulum.net> <Pine.GSO.4.64.0706191823040.1099@sea.ntplx.net> <20070620110702.GB929@lizard.fafoe.narf.at> <Pine.GSO.4.64.0706200824530.4695@sea.ntplx.net>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, Jun 20, 2007 at 08:34:46AM -0400, Daniel Eischen wrote: > On Wed, 20 Jun 2007, Stefan Farfeleder wrote: > > > On Tue, Jun 19, 2007 at 06:36:39PM -0400, Daniel Eischen wrote: > > > >> POSIX states that: > >> > >> o The <sys/socket.h> header shall define the type socklen_t, > >> which is an integer type of width of at least 32 bits; see > >> APPLICATION USAGE. > >> > >> and goes on to state: > >> > >> o The <sys/socket.h> header shall define the unsigned integer > >> type sa_family_t. > >> > >> This seems to imply that our socklen_t should not be an unsigned > >> integer (uint32_t), but a signed integer. In APPLICATION USAGE, > >> POSIX states: > > > > I don't understand how you come to that conclusion. Why does not > > mentioning whether socklen_t is signed or unsigned imply it should be > > signed? > > Because it explicitly says unsigned for sa_family_t and does not > say unsigned for socklen_t. To me, "integer" means a C (signed) > integer. It doesn't say signed or unsigned for socklen_t because both are allowed. Eg. regoff_t in <regex.h> is explicitly defined as a "signed integer type". I'm sure there are more, that's just the first one I found. Stefan
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20070620124040.GC929>