From owner-svn-src-stable-12@freebsd.org Mon May 4 12:27:47 2020 Return-Path: Delivered-To: svn-src-stable-12@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 24B582CEBF3; Mon, 4 May 2020 12:27:47 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49G2Dy6kfVz489R; Mon, 4 May 2020 12:27:46 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id E0397241B1; Mon, 4 May 2020 12:27:46 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 044CRku2052545; Mon, 4 May 2020 12:27:46 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 044CRkDW052544; Mon, 4 May 2020 12:27:46 GMT (envelope-from markj@FreeBSD.org) Message-Id: <202005041227.044CRkDW052544@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Mon, 4 May 2020 12:27:46 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r360627 - stable/12/lib/libc/sys X-SVN-Group: stable-12 X-SVN-Commit-Author: markj X-SVN-Commit-Paths: stable/12/lib/libc/sys X-SVN-Commit-Revision: 360627 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-12@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for only the 12-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 May 2020 12:27:47 -0000 Author: markj Date: Mon May 4 12:27:46 2020 New Revision: 360627 URL: https://svnweb.freebsd.org/changeset/base/360627 Log: MFC r360384: Document handling of connection-mode sockets by sendto(2). PR: 245817 Modified: stable/12/lib/libc/sys/send.2 Directory Properties: stable/12/ (props changed) Modified: stable/12/lib/libc/sys/send.2 ============================================================================== --- stable/12/lib/libc/sys/send.2 Mon May 4 11:23:55 2020 (r360626) +++ stable/12/lib/libc/sys/send.2 Mon May 4 12:27:46 2020 (r360627) @@ -28,7 +28,7 @@ .\" From: @(#)send.2 8.2 (Berkeley) 2/21/94 .\" $FreeBSD$ .\" -.Dd January 4, 2019 +.Dd April 27, 2020 .Dt SEND 2 .Os .Sh NAME @@ -69,18 +69,35 @@ The function may be used only when the socket is in a .Em connected -state, while +state. +The functions .Fn sendto , .Fn sendmsg and .Fn sendmmsg -may be used at any time. +may be used at any time if the socket is connectionless-mode. +If the socket is connection-mode, the protocol +must support implied connect (currently +.Xr tcp 4 +is the only protocol with support) or the socket must be in a +connected state before use. .Pp The address of the target is given by .Fa to with .Fa tolen -specifying its size. +specifying its size, or the equivalent +.Fa msg_name +and +.Fa msg_namelen +in +.Fa struct msghdr . +If the socket is in a connected state, the target address passed to +.Fn sendto , +.Fn sendmsg +or +.Fn sendmmsg +is ignored. The length of the message is given by .Fa len . If the message is too long to pass atomically through the @@ -195,6 +212,8 @@ An invalid descriptor was specified. The destination address is a broadcast address, and .Dv SO_BROADCAST has not been set on the socket. +.It Bq Er ENOTCONN +The socket is connection-mode but is not connected. .It Bq Er ENOTSOCK The argument .Fa s @@ -242,6 +261,7 @@ This typically means that the socket is not connected. .El .Sh SEE ALSO +.Xr connect 2 , .Xr fcntl 2 , .Xr getsockopt 2 , .Xr recv 2 ,