Date: Thu, 3 May 2018 02:42:13 +0000 (UTC) From: Kyle Evans <kevans@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r333192 - head/lib/libc/sys Message-ID: <201805030242.w432gDU1057032@repo.freebsd.org>
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Author: kevans Date: Thu May 3 02:42:13 2018 New Revision: 333192 URL: https://svnweb.freebsd.org/changeset/base/333192 Log: fcntl(2): Vaguely document that ENOTTY is possible, with light examples Reported by: vs (2006, FreeBSD 6.1-BETA3) Reported by: me (2018, angry debugging session) MFC after: 1 month Modified: head/lib/libc/sys/fcntl.2 Modified: head/lib/libc/sys/fcntl.2 ============================================================================== --- head/lib/libc/sys/fcntl.2 Thu May 3 01:23:42 2018 (r333191) +++ head/lib/libc/sys/fcntl.2 Thu May 3 02:42:13 2018 (r333192) @@ -28,7 +28,7 @@ .\" @(#)fcntl.2 8.2 (Berkeley) 1/12/94 .\" $FreeBSD$ .\" -.Dd July 7, 2016 +.Dd May 2, 2018 .Dt FCNTL 2 .Os .Sh NAME @@ -572,6 +572,14 @@ process are already in use, or no file descriptors greater than or equal to .Fa arg are available. +.It Bq Er ENOTTY +The +.Fa fd +argument is not a valid file descriptor for the requested operation. +This may be the case if +.Fa fd +is a device node, or a descriptor returned by +.Xr kqueue 2 . .It Bq Er ENOLCK The argument .Fa cmd
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