From owner-svn-src-all@freebsd.org Sun May 15 22:06:23 2016 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 26001B3B366; Sun, 15 May 2016 22:06:23 +0000 (UTC) (envelope-from truckman@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 EA26612B3; Sun, 15 May 2016 22:06:22 +0000 (UTC) (envelope-from truckman@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u4FM6MMD005788; Sun, 15 May 2016 22:06:22 GMT (envelope-from truckman@FreeBSD.org) Received: (from truckman@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u4FM6MQU005786; Sun, 15 May 2016 22:06:22 GMT (envelope-from truckman@FreeBSD.org) Message-Id: <201605152206.u4FM6MQU005786@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: truckman set sender to truckman@FreeBSD.org using -f From: Don Lewis Date: Sun, 15 May 2016 22:06:22 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r299867 - head/usr.sbin/rtadvd 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: 2.1.22 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: Sun, 15 May 2016 22:06:23 -0000 Author: truckman Date: Sun May 15 22:06:21 2016 New Revision: 299867 URL: https://svnweb.freebsd.org/changeset/base/299867 Log: Use strlcpy() instead of strncpy() when copying ifname to ensure that it is NUL terminated. Additional NUL padding is not required for short names. MFC after: 1 week Modified: head/usr.sbin/rtadvd/config.c head/usr.sbin/rtadvd/if.c Modified: head/usr.sbin/rtadvd/config.c ============================================================================== --- head/usr.sbin/rtadvd/config.c Sun May 15 21:45:04 2016 (r299866) +++ head/usr.sbin/rtadvd/config.c Sun May 15 22:06:21 2016 (r299867) @@ -640,7 +640,7 @@ getconfig_free_pfx: exit(1); } memset(&ndi, 0, sizeof(ndi)); - strncpy(ndi.ifname, ifi->ifi_ifname, sizeof(ndi.ifname)); + strlcpy(ndi.ifname, ifi->ifi_ifname, sizeof(ndi.ifname)); if (ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&ndi) < 0) syslog(LOG_INFO, "<%s> ioctl:SIOCGIFINFO_IN6 at %s: %s", __func__, ifi->ifi_ifname, strerror(errno)); Modified: head/usr.sbin/rtadvd/if.c ============================================================================== --- head/usr.sbin/rtadvd/if.c Sun May 15 21:45:04 2016 (r299866) +++ head/usr.sbin/rtadvd/if.c Sun May 15 22:06:21 2016 (r299867) @@ -387,7 +387,7 @@ update_ifinfo_nd_flags(struct ifinfo *if } /* ND flags */ memset(&nd, 0, sizeof(nd)); - strncpy(nd.ifname, ifi->ifi_ifname, + strlcpy(nd.ifname, ifi->ifi_ifname, sizeof(nd.ifname)); error = ioctl(s, SIOCGIFINFO_IN6, (caddr_t)&nd); if (error) { @@ -516,7 +516,7 @@ update_ifinfo(struct ifilist_head_t *ifi if (ifi->ifi_phymtu == 0) { memset(&ifr, 0, sizeof(ifr)); ifr.ifr_addr.sa_family = AF_INET6; - strncpy(ifr.ifr_name, ifi->ifi_ifname, + strlcpy(ifr.ifr_name, ifi->ifi_ifname, sizeof(ifr.ifr_name)); error = ioctl(s, SIOCGIFMTU, (caddr_t)&ifr); if (error) {