From patchwork Thu May 12 08:09:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 12847320 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3F26DC433F5 for ; Thu, 12 May 2022 08:26:59 +0000 (UTC) Received: from localhost ([::1]:59912 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1np49s-0003Yy-HO for qemu-devel@archiver.kernel.org; Thu, 12 May 2022 04:26:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51266) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1np3tK-0006io-Jl for qemu-devel@nongnu.org; Thu, 12 May 2022 04:09:47 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:52264) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1np3tF-0002jG-Nx for qemu-devel@nongnu.org; Thu, 12 May 2022 04:09:43 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1652342978; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lQ461eKF56EY0djFo1y69Sg4lrRbfot/mXEIxyS0QME=; b=VhgGj8AFHeeAjCOVURmAjJO7ds9K7qcLSJuf+E8bfi+Q3hEnug0xxB6rrJpPQSvwVDqQvU 1uzfZl9p1xU1gjxqxoBV0ec0JmbyonEf3sWh69QHsQwj55vdVu74b9oFRw7pHY8f2RtJm2 YvFP24yttGef/7v1bnSswaG///t59h8= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-57-J1Xm7UA7NOmKQpx3MQO28w-1; Thu, 12 May 2022 04:09:37 -0400 X-MC-Unique: J1Xm7UA7NOmKQpx3MQO28w-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id DE6E03C0CD4A for ; Thu, 12 May 2022 08:09:36 +0000 (UTC) Received: from thinkpad.redhat.com (unknown [10.39.194.254]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2CCBA40CF8F4; Thu, 12 May 2022 08:09:36 +0000 (UTC) From: Laurent Vivier To: qemu-devel@nongnu.org Cc: Laurent Vivier Subject: [RFC PATCH v2 1/8] net: introduce convert_host_port() Date: Thu, 12 May 2022 10:09:25 +0200 Message-Id: <20220512080932.735962-2-lvivier@redhat.com> In-Reply-To: <20220512080932.735962-1-lvivier@redhat.com> References: <20220512080932.735962-1-lvivier@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 Received-SPF: pass client-ip=170.10.129.124; envelope-from=lvivier@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Laurent Vivier --- include/qemu/sockets.h | 2 ++ net/net.c | 62 ++++++++++++++++++++++-------------------- 2 files changed, 34 insertions(+), 30 deletions(-) diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h index 038faa157f59..47194b9732f8 100644 --- a/include/qemu/sockets.h +++ b/include/qemu/sockets.h @@ -47,6 +47,8 @@ void socket_listen_cleanup(int fd, Error **errp); int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp); /* Old, ipv4 only bits. Don't use for new code. */ +int convert_host_port(struct sockaddr_in *saddr, const char *host, + const char *port, Error **errp); int parse_host_port(struct sockaddr_in *saddr, const char *str, Error **errp); int socket_init(void); diff --git a/net/net.c b/net/net.c index a094cf1d2929..58c05c200622 100644 --- a/net/net.c +++ b/net/net.c @@ -66,55 +66,57 @@ static QTAILQ_HEAD(, NetClientState) net_clients; /***********************************************************/ /* network device redirectors */ -int parse_host_port(struct sockaddr_in *saddr, const char *str, - Error **errp) +int convert_host_port(struct sockaddr_in *saddr, const char *host, + const char *port, Error **errp) { - gchar **substrings; struct hostent *he; - const char *addr, *p, *r; - int port, ret = 0; + const char *r; + long p; memset(saddr, 0, sizeof(*saddr)); - substrings = g_strsplit(str, ":", 2); - if (!substrings || !substrings[0] || !substrings[1]) { - error_setg(errp, "host address '%s' doesn't contain ':' " - "separating host from port", str); - ret = -1; - goto out; - } - - addr = substrings[0]; - p = substrings[1]; - saddr->sin_family = AF_INET; - if (addr[0] == '\0') { + if (host[0] == '\0') { saddr->sin_addr.s_addr = 0; } else { - if (qemu_isdigit(addr[0])) { - if (!inet_aton(addr, &saddr->sin_addr)) { + if (qemu_isdigit(host[0])) { + if (!inet_aton(host, &saddr->sin_addr)) { error_setg(errp, "host address '%s' is not a valid " - "IPv4 address", addr); - ret = -1; - goto out; + "IPv4 address", host); + return -1; } } else { - he = gethostbyname(addr); + he = gethostbyname(host); if (he == NULL) { - error_setg(errp, "can't resolve host address '%s'", addr); - ret = -1; - goto out; + error_setg(errp, "can't resolve host address '%s'", host); + return -1; } saddr->sin_addr = *(struct in_addr *)he->h_addr; } } - port = strtol(p, (char **)&r, 0); - if (r == p) { - error_setg(errp, "port number '%s' is invalid", p); + if (qemu_strtol(port, &r, 0, &p) != 0) { + error_setg(errp, "port number '%s' is invalid", port); + return -1; + } + saddr->sin_port = htons(p); + return 0; +} + +int parse_host_port(struct sockaddr_in *saddr, const char *str, + Error **errp) +{ + gchar **substrings; + int ret; + + substrings = g_strsplit(str, ":", 2); + if (!substrings || !substrings[0] || !substrings[1]) { + error_setg(errp, "host address '%s' doesn't contain ':' " + "separating host from port", str); ret = -1; goto out; } - saddr->sin_port = htons(port); + + ret = convert_host_port(saddr, substrings[0], substrings[1], errp); out: g_strfreev(substrings);