From nobody Tue Feb 10 10:03:52 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1573226186; cv=none; d=zoho.com; s=zohoarc; b=VfKjYe7jvxM4BE31aYGaFCuO6Nu/iBHICVokxUzXZvwucW2yKoABk2g9ghCQEryBDHmZwPKnNR9YFNW0Hj44124GcF7pt8Tgcd8kXC5/dEqwlFUmEzxlXwkb+qnrkBOLnNJAeiBPptkw3RI7NYySc29LQJMjZlGGiyITbTjWl3s= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zoho.com; s=zohoarc; t=1573226186; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=V/mcHvKX7InUGUgT0KSXWZlTMQTnyJjgwdgTbknSH9s=; b=Z8wwsB4lmG6KJhgWzNTuLYhsdlRTqC+jElOibw9rS+RDS0+KbrnZJ/pKkOwMPJa4xKL3DvGYftsuub+7GIxhZeG9KZiH7M/ZkhIa/sHs2doBqMpnufLfyGKUJqfAynoeUm6FptH2KbCTReMMyNYrQJjju4wOGx6AnH2MW3mNjPs= ARC-Authentication-Results: i=1; mx.zoho.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1573226186080251.68830481118687; Fri, 8 Nov 2019 07:16:26 -0800 (PST) Received: from localhost ([::1]:56014 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iT5zq-0001tU-M7 for importer@patchew.org; Fri, 08 Nov 2019 10:16:22 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:46792) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iT5pm-0006mC-3n for qemu-devel@nongnu.org; Fri, 08 Nov 2019 10:05:59 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iT5pj-0006M2-Ts for qemu-devel@nongnu.org; Fri, 08 Nov 2019 10:05:58 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:27781 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iT5pj-0006Ld-Q1 for qemu-devel@nongnu.org; Fri, 08 Nov 2019 10:05:55 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-28-wHajOuMYMjS7RgWHsoVTeA-1; Fri, 08 Nov 2019 10:05:54 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 485B61005500 for ; Fri, 8 Nov 2019 15:05:53 +0000 (UTC) Received: from localhost (ovpn-112-25.ams2.redhat.com [10.36.112.25]) by smtp.corp.redhat.com (Postfix) with ESMTP id ED49D600CA; Fri, 8 Nov 2019 15:05:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1573225555; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=V/mcHvKX7InUGUgT0KSXWZlTMQTnyJjgwdgTbknSH9s=; b=EermZ3D4Jz5xl9pUoGmCJmbvNdlG2Z09tAYt8paKJej3kqghZooKD1pCOlQdQxvBQtGtM2 1+bo23j37M7KrVx2iykm1imivNUa9es6QvuAx69PHtmI9qkfrG6pw6Mi1Q2BHSkF77rGUS swnrfuZk80FGq2qjkyB7+mwy+PrcS3M= From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= To: qemu-devel@nongnu.org Subject: [PATCH v6 19/25] screendump: replace FILE with QIOChannel and fix close()/qemu_close() Date: Fri, 8 Nov 2019 19:01:17 +0400 Message-Id: <20191108150123.12213-20-marcandre.lureau@redhat.com> In-Reply-To: <20191108150123.12213-1-marcandre.lureau@redhat.com> References: <20191108150123.12213-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-MC-Unique: wHajOuMYMjS7RgWHsoVTeA-1 X-Mimecast-Spam-Score: 0 Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , armbru@redhat.com, kraxel@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" The file opened for ppm_save() may be a /dev/fdset, in which case a dup fd is added to the fdset. It should be removed by calling qemu_close(), instead of the implicit close() on fclose(). I don't see a convenient way to solve that with stdio streams, so I switched the code to QIOChannel which uses qemu_close(). Signed-off-by: Marc-Andr=C3=A9 Lureau --- ui/console.c | 38 +++++++++++++++++--------------------- 1 file changed, 17 insertions(+), 21 deletions(-) diff --git a/ui/console.c b/ui/console.c index 77d62fe76d..587edf4ed4 100644 --- a/ui/console.c +++ b/ui/console.c @@ -33,6 +33,7 @@ #include "chardev/char-fe.h" #include "trace.h" #include "exec/memory.h" +#include "io/channel-file.h" =20 #define DEFAULT_BACKSCROLL 512 #define CONSOLE_CURSOR_PERIOD 500 @@ -313,36 +314,31 @@ static bool ppm_save(int fd, DisplaySurface *ds, Erro= r **errp) { int width =3D pixman_image_get_width(ds->image); int height =3D pixman_image_get_height(ds->image); - FILE *f; + g_autoptr(Object) ioc =3D OBJECT(qio_channel_file_new_fd(fd)); + g_autofree char *header =3D NULL; + g_autoptr(pixman_image_t) linebuf =3D NULL; + g_autoptr(GError) error =3D NULL; int y; - int ret; - pixman_image_t *linebuf; - bool success =3D false; =20 trace_ppm_save(fd, ds); - f =3D fdopen(fd, "wb"); - ret =3D fprintf(f, "P6\n%d %d\n%d\n", width, height, 255); - if (ret < 0) { - linebuf =3D NULL; - goto end; + + header =3D g_strdup_printf("P6\n%d %d\n%d\n", width, height, 255); + if (qio_channel_write_all(QIO_CHANNEL(ioc), + header, strlen(header), errp) < 0) { + return false; } + linebuf =3D qemu_pixman_linebuf_create(PIXMAN_BE_r8g8b8, width); for (y =3D 0; y < height; y++) { qemu_pixman_linebuf_fill(linebuf, ds->image, width, 0, y); - clearerr(f); - ret =3D fwrite(pixman_image_get_data(linebuf), 1, - pixman_image_get_stride(linebuf), f); - (void)ret; - success =3D !ferror(f); + if (qio_channel_write_all(QIO_CHANNEL(ioc), + (char *)pixman_image_get_data(linebuf), + pixman_image_get_stride(linebuf), errp) = < 0) { + return false; + } } =20 -end: - if (!success) { - error_setg(errp, "failed to write to PPM file: %s", strerror(errno= )); - } - qemu_pixman_image_unref(linebuf); - fclose(f); - return success; + return true; } =20 void qmp_screendump(const char *filename, bool has_device, const char *dev= ice, --=20 2.24.0