From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-2.8 required=3.0 tests=AWL,BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,T_RP_MATCHES_RCVD shortcircuit=no autolearn=no autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 126C21F404 for ; Thu, 5 Apr 2018 17:35:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751463AbeDERez (ORCPT ); Thu, 5 Apr 2018 13:34:55 -0400 Received: from mx0a-00153501.pphosted.com ([67.231.148.48]:39126 "EHLO mx0a-00153501.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750786AbeDERex (ORCPT ); Thu, 5 Apr 2018 13:34:53 -0400 Received: from pps.filterd (m0131697.ppops.net [127.0.0.1]) by mx0a-00153501.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id w35HYFZN006042; Thu, 5 Apr 2018 10:34:49 -0700 Authentication-Results: palantir.com; spf=softfail smtp.mailfrom=newren@gmail.com Received: from smtp-transport.yojoe.local (mxw3.palantir.com [66.70.54.23] (may be forged)) by mx0a-00153501.pphosted.com with ESMTP id 2h286rvn7q-1; Thu, 05 Apr 2018 10:34:48 -0700 Received: from mxw1.palantir.com (new-smtp.yojoe.local [172.19.0.45]) by smtp-transport.yojoe.local (Postfix) with ESMTP id CC5212212A6E; Thu, 5 Apr 2018 10:34:48 -0700 (PDT) Received: from newren2-linux.yojoe.local (unknown [10.100.71.66]) by smtp.yojoe.local (Postfix) with ESMTP id C2E862CDEB1; Thu, 5 Apr 2018 10:34:48 -0700 (PDT) From: Elijah Newren To: git@vger.kernel.org Cc: sxlijin@gmail.com, peff@peff.net, Elijah Newren Subject: [RFC PATCH 2/7] dir.c: fix off-by-one error in match_pathspec_item Date: Thu, 5 Apr 2018 10:34:41 -0700 Message-Id: <20180405173446.32372-3-newren@gmail.com> X-Mailer: git-send-email 2.17.0.7.g0b50f94d69 In-Reply-To: <20180405173446.32372-1-newren@gmail.com> References: <20180405173446.32372-1-newren@gmail.com> X-Proofpoint-SPF-Result: softfail X-Proofpoint-SPF-Record: v=spf1 redirect=_spf.google.com X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2018-04-05_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=4 phishscore=0 bulkscore=0 spamscore=0 clxscore=1034 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1804050181 Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org For a pathspec like 'foo/bar' comparing against a path named "foo/", namelen will be 4, and match[namelen] will be 'b'. The correct location of the directory separator is namelen-1. The reason the code worked anyway was that the following code immediately checked whether the first matchlen characters matched (which they do) and then bailed and return MATCHED_RECURSIVELY anyway since wildmatch doesn't have the ability to check if "name" can be matched as a directory (or prefix) against the pathspec. Signed-off-by: Elijah Newren --- dir.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/dir.c b/dir.c index 19212129f0..c915a69385 100644 --- a/dir.c +++ b/dir.c @@ -384,7 +384,7 @@ static int match_pathspec_item(const struct pathspec_item *item, int prefix, if (flags & DO_MATCH_SUBMODULE) { /* name is a literal prefix of the pathspec */ if ((namelen < matchlen) && - (match[namelen] == '/') && + (match[namelen-1] == '/') && !ps_strncmp(item, match, name, namelen)) return MATCHED_RECURSIVELY; -- 2.17.0.7.g0b50f94d69