From nobody Thu Jul 10 00:22:34 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; dmarc=pass(p=none dis=none) header.from=redhat.com Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1521743568803803.3396025292557; Thu, 22 Mar 2018 11:32:48 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 42D1551EF6; Thu, 22 Mar 2018 18:32:47 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.20]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 0CF7B82F71; Thu, 22 Mar 2018 18:32:47 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id 96AF3181BA01; Thu, 22 Mar 2018 18:32:46 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id w2MIVrti015591 for ; Thu, 22 Mar 2018 14:31:53 -0400 Received: by smtp.corp.redhat.com (Postfix) id BBBA88442D; Thu, 22 Mar 2018 18:31:53 +0000 (UTC) Received: from angien.brq.redhat.com (unknown [10.43.2.136]) by smtp.corp.redhat.com (Postfix) with ESMTP id 45CA36F9E2; Thu, 22 Mar 2018 18:31:53 +0000 (UTC) From: Peter Krempa To: libvir-list@redhat.com Date: Thu, 22 Mar 2018 19:31:38 +0100 Message-Id: <81cd6cce9bd871a23ef1b3b7fe7fb44bcfac3509.1521743167.git.pkrempa@redhat.com> In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-loop: libvir-list@redhat.com Cc: Peter Krempa Subject: [libvirt] [PATCH 01/11] util: buffer: Tolerate NULL 'buf' in virBufferStrcat X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Thu, 22 Mar 2018 18:32:47 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Most other buffer APIs tolerate the buffer being NULL. Signed-off-by: Peter Krempa --- src/util/virbuffer.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/util/virbuffer.c b/src/util/virbuffer.c index 1a6bf122e0..3d6defb73a 100644 --- a/src/util/virbuffer.c +++ b/src/util/virbuffer.c @@ -883,6 +883,9 @@ virBufferStrcat(virBufferPtr buf, ...) { va_list ap; + if (!buf) + return; + va_start(ap, buf); virBufferStrcatVArgs(buf, ap); va_end(ap); --=20 2.16.2 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list