From patchwork Fri Jun 23 16:21:58 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kevin Wolf X-Patchwork-Id: 9807083 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 648B66086C for ; Fri, 23 Jun 2017 17:08:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4AA612876D for ; Fri, 23 Jun 2017 17:08:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3C17C28776; Fri, 23 Jun 2017 17:08:49 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A31752876D for ; Fri, 23 Jun 2017 17:08:48 +0000 (UTC) Received: from localhost ([::1]:36482 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dOS4d-0002nE-Og for patchwork-qemu-devel@patchwork.kernel.org; Fri, 23 Jun 2017 13:08:47 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60964) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dORMn-0002Br-0n for qemu-devel@nongnu.org; Fri, 23 Jun 2017 12:23:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dORMm-0008NM-05 for qemu-devel@nongnu.org; Fri, 23 Jun 2017 12:23:28 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58712) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dORMh-0008IR-7o; Fri, 23 Jun 2017 12:23:23 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 419AB30AF7E; Fri, 23 Jun 2017 16:23:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 419AB30AF7E Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=kwolf@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 419AB30AF7E Received: from noname.redhat.com (ovpn-117-196.ams2.redhat.com [10.36.117.196]) by smtp.corp.redhat.com (Postfix) with ESMTP id 443956EC99; Fri, 23 Jun 2017 16:23:21 +0000 (UTC) From: Kevin Wolf To: qemu-block@nongnu.org Date: Fri, 23 Jun 2017 18:21:58 +0200 Message-Id: <1498234919-27316-61-git-send-email-kwolf@redhat.com> In-Reply-To: <1498234919-27316-1-git-send-email-kwolf@redhat.com> References: <1498234919-27316-1-git-send-email-kwolf@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Fri, 23 Jun 2017 16:23:22 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 60/61] block: Do not strcmp() with NULL uri->scheme X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kwolf@redhat.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Max Reitz uri_parse(...)->scheme may be NULL. In fact, probably every field may be NULL, and the callers do test this for all of the other fields but not for scheme (except for block/gluster.c; block/vxhs.c does not access that field at all). We can easily fix this by using g_strcmp0() instead of strcmp(). Cc: qemu-stable@nongnu.org Signed-off-by: Max Reitz Message-id: 20170613205726.13544-1-mreitz@redhat.com Reviewed-by: Stefan Hajnoczi Signed-off-by: Max Reitz --- block/nbd.c | 6 +++--- block/nfs.c | 2 +- block/sheepdog.c | 6 +++--- block/ssh.c | 2 +- 4 files changed, 8 insertions(+), 8 deletions(-) diff --git a/block/nbd.c b/block/nbd.c index e946ea9..d529305 100644 --- a/block/nbd.c +++ b/block/nbd.c @@ -64,11 +64,11 @@ static int nbd_parse_uri(const char *filename, QDict *options) } /* transport */ - if (!strcmp(uri->scheme, "nbd")) { + if (!g_strcmp0(uri->scheme, "nbd")) { is_unix = false; - } else if (!strcmp(uri->scheme, "nbd+tcp")) { + } else if (!g_strcmp0(uri->scheme, "nbd+tcp")) { is_unix = false; - } else if (!strcmp(uri->scheme, "nbd+unix")) { + } else if (!g_strcmp0(uri->scheme, "nbd+unix")) { is_unix = true; } else { ret = -EINVAL; diff --git a/block/nfs.c b/block/nfs.c index 6b8b5b6..c3c5de0 100644 --- a/block/nfs.c +++ b/block/nfs.c @@ -82,7 +82,7 @@ static int nfs_parse_uri(const char *filename, QDict *options, Error **errp) error_setg(errp, "Invalid URI specified"); goto out; } - if (strcmp(uri->scheme, "nfs") != 0) { + if (g_strcmp0(uri->scheme, "nfs") != 0) { error_setg(errp, "URI scheme must be 'nfs'"); goto out; } diff --git a/block/sheepdog.c b/block/sheepdog.c index a87ee5f..08d7b11 100644 --- a/block/sheepdog.c +++ b/block/sheepdog.c @@ -1046,11 +1046,11 @@ static void sd_parse_uri(SheepdogConfig *cfg, const char *filename, } /* transport */ - if (!strcmp(uri->scheme, "sheepdog")) { + if (!g_strcmp0(uri->scheme, "sheepdog")) { is_unix = false; - } else if (!strcmp(uri->scheme, "sheepdog+tcp")) { + } else if (!g_strcmp0(uri->scheme, "sheepdog+tcp")) { is_unix = false; - } else if (!strcmp(uri->scheme, "sheepdog+unix")) { + } else if (!g_strcmp0(uri->scheme, "sheepdog+unix")) { is_unix = true; } else { error_setg(&err, "URI scheme must be 'sheepdog', 'sheepdog+tcp'," diff --git a/block/ssh.c b/block/ssh.c index bac3453..5296441 100644 --- a/block/ssh.c +++ b/block/ssh.c @@ -204,7 +204,7 @@ static int parse_uri(const char *filename, QDict *options, Error **errp) return -EINVAL; } - if (strcmp(uri->scheme, "ssh") != 0) { + if (g_strcmp0(uri->scheme, "ssh") != 0) { error_setg(errp, "URI scheme must be 'ssh'"); goto err; }