From owner-svn-src-all@freebsd.org Thu Feb 27 16:51:42 2020 Return-Path: Delivered-To: svn-src-all@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 83CEA2477FD; Thu, 27 Feb 2020 16:51:42 +0000 (UTC) (envelope-from jhb@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 48SzGQ1yYjz3Mld; Thu, 27 Feb 2020 16:51:42 +0000 (UTC) (envelope-from jhb@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 D4DB51BDE2; Thu, 27 Feb 2020 16:51:41 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 01RGpfQm038510; Thu, 27 Feb 2020 16:51:41 GMT (envelope-from jhb@FreeBSD.org) Received: (from jhb@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 01RGpf4x038509; Thu, 27 Feb 2020 16:51:41 GMT (envelope-from jhb@FreeBSD.org) Message-Id: <202002271651.01RGpf4x038509@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jhb set sender to jhb@FreeBSD.org using -f From: John Baldwin Date: Thu, 27 Feb 2020 16:51:41 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r358394 - head/usr.sbin/bhyve X-SVN-Group: head X-SVN-Commit-Author: jhb X-SVN-Commit-Paths: head/usr.sbin/bhyve X-SVN-Commit-Revision: 358394 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 Feb 2020 16:51:42 -0000 Author: jhb Date: Thu Feb 27 16:51:41 2020 New Revision: 358394 URL: https://svnweb.freebsd.org/changeset/base/358394 Log: Use stream_read() to read all 12 bytes of the RFB client version. read() can return a short read, whereas stream_read() waits until the full version string is read. Submitted by: Ka Ho Ng Reviewed by: grehan MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D23591 Modified: head/usr.sbin/bhyve/rfb.c Modified: head/usr.sbin/bhyve/rfb.c ============================================================================== --- head/usr.sbin/bhyve/rfb.c Thu Feb 27 15:34:30 2020 (r358393) +++ head/usr.sbin/bhyve/rfb.c Thu Feb 27 16:51:41 2020 (r358394) @@ -76,6 +76,7 @@ static int rfb_debug = 0; #define DPRINTF(params) if (rfb_debug) PRINTLN params #define WPRINTF(params) PRINTLN params +#define VERSION_LENGTH 12 #define AUTH_LENGTH 16 #define PASSWD_LENGTH 8 @@ -769,7 +770,7 @@ rfb_handle(struct rfb_softc *rc, int cfd) stream_write(cfd, vbuf, strlen(vbuf)); /* 1b. Read client version */ - len = read(cfd, buf, sizeof(buf)); + len = stream_read(cfd, buf, VERSION_LENGTH); /* 2a. Send security type */ buf[0] = 1;