Date: Fri, 22 May 2009 21:46:43 +1000 (EST) From: Bruce Evans <brde@optusnet.com.au> To: Robert Watson <rwatson@FreeBSD.org> Cc: unixmania@gmail.com, danfe@FreeBSD.org, src-committers@FreeBSD.org, peterjeremy@optushome.com.au, svn-src-all@FreeBSD.org, stas@FreeBSD.org, gnn@FreeBSD.org, Bruce Evans <brde@optusnet.com.au>, svn-src-head@FreeBSD.org, "M. Warner Losh" <imp@bsdimp.com> Subject: Re: svn commit: r192398 - in head/usr.bin: . perror Message-ID: <20090522205615.G2353@besplex.bde.org> In-Reply-To: <alpine.BSF.2.00.0905221139020.17322@fledge.watson.org> References: <e71790db0905201558u1c8e3e90n1fbbfc4011e22909@mail.gmail.com> <20090521132404.cc5be268.stas@FreeBSD.org> <20090521110115.GA50355@FreeBSD.org> <20090521.085256.-1989816394.imp@bsdimp.com> <20090522195717.U22330@delplex.bde.org> <alpine.BSF.2.00.0905221139020.17322@fledge.watson.org>
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On Fri, 22 May 2009, Robert Watson wrote: > On Fri, 22 May 2009, Bruce Evans wrote: >> What about with "man errno". Man pages are slightly more likely to be > ... > ... On the topic of man pages though -- I was interested > to see that Mac OS X does not ship with an errno(2), despite shipping with a > BSD-derived errno.h. Under FreeBSD, errno.2 is only a link to intro.2. This link was there in libc/sys/Makefile.inc rev.1.1. More than half of intro.2 is about error numbers. I expected to find error numbers described in strerror.3 or perror.3. perror.3 is only a link to sterror.3 (so is sys_errlist.3, which is probably the right place for documenting the list). strerror.3 refers to intro.2 but not errno.2. errno.2 is referred to mainly in au_token(3) and its 46 links. apropos(1) does an especially poor job for errno since it gets spammed more than usual by links, and errno isn't a function. It doesn't find errno(2), intro(2) or strerror(2), but it finds au_bsm_to_errno(3) and many other functions with errno in their name, and then gets spammed by links to these; it finds pcap_strerror(3) due to errno in its description, and it finds perl's Errno(3). Bruce
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