From owner-svn-src-all@freebsd.org Fri Dec 18 23:05:37 2015 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id B67F5A4BF45; Fri, 18 Dec 2015 23:05:37 +0000 (UTC) (envelope-from pfg@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 mx1.freebsd.org (Postfix) with ESMTPS id 8A54812F6; Fri, 18 Dec 2015 23:05:37 +0000 (UTC) (envelope-from pfg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id tBIN5as6060924; Fri, 18 Dec 2015 23:05:36 GMT (envelope-from pfg@FreeBSD.org) Received: (from pfg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id tBIN5aY1060923; Fri, 18 Dec 2015 23:05:36 GMT (envelope-from pfg@FreeBSD.org) Message-Id: <201512182305.tBIN5aY1060923@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: pfg set sender to pfg@FreeBSD.org using -f From: "Pedro F. Giffuni" Date: Fri, 18 Dec 2015 23:05:36 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r292455 - head/bin/ed X-SVN-Group: head 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: 2.1.20 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: Fri, 18 Dec 2015 23:05:37 -0000 Author: pfg Date: Fri Dec 18 23:05:36 2015 New Revision: 292455 URL: https://svnweb.freebsd.org/changeset/base/292455 Log: ed(1): Prevent possible string overflows Use strlcpy instead of strncpy to guarantee NULL termination. Pointed out by: imp CID: 1007252 X-MFC with: r292454 Modified: head/bin/ed/main.c Modified: head/bin/ed/main.c ============================================================================== --- head/bin/ed/main.c Fri Dec 18 21:58:42 2015 (r292454) +++ head/bin/ed/main.c Fri Dec 18 23:05:36 2015 (r292455) @@ -506,7 +506,7 @@ exec_command(void) else if (open_sbuf() < 0) return FATAL; if (*fnp && *fnp != '!') - strncpy(old_filename, fnp, PATH_MAX); + strlcpy(old_filename, fnp, PATH_MAX); #ifdef BACKWARDS if (*fnp == '\0' && *old_filename == '\0') { errmsg = "no current filename"; @@ -534,7 +534,7 @@ exec_command(void) } GET_COMMAND_SUFFIX(); if (*fnp) - strncpy(old_filename, fnp, PATH_MAX); + strlcpy(old_filename, fnp, PATH_MAX); printf("%s\n", strip_escapes(old_filename)); break; case 'g': @@ -665,7 +665,7 @@ exec_command(void) GET_COMMAND_SUFFIX(); if (!isglobal) clear_undo_stack(); if (*old_filename == '\0' && *fnp != '!') - strncpy(old_filename, fnp, PATH_MAX); + strlcpy(old_filename, fnp, PATH_MAX); #ifdef BACKWARDS if (*fnp == '\0' && *old_filename == '\0') { errmsg = "no current filename"; @@ -799,7 +799,7 @@ exec_command(void) return ERR; GET_COMMAND_SUFFIX(); if (*old_filename == '\0' && *fnp != '!') - strncpy(old_filename, fnp, PATH_MAX); + strlcpy(old_filename, fnp, PATH_MAX); #ifdef BACKWARDS if (*fnp == '\0' && *old_filename == '\0') { errmsg = "no current filename";