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[209.51.188.17]) by mx.google.com with ESMTPS id r9-20020a056214124900b00631eaf54a92si897190qvv.407.2023.06.20.08.04.14 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 20 Jun 2023 08:04:14 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=b3HJ05u6; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qBctX-000587-7s; Tue, 20 Jun 2023 11:03:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qBctV-00057Y-SA for qemu-devel@nongnu.org; Tue, 20 Jun 2023 11:03:45 -0400 Received: from mail-wm1-x32d.google.com ([2a00:1450:4864:20::32d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qBctT-0004Mt-Ah for qemu-devel@nongnu.org; Tue, 20 Jun 2023 11:03:45 -0400 Received: by mail-wm1-x32d.google.com with SMTP id 5b1f17b1804b1-3f9b627c1b8so13090575e9.1 for ; Tue, 20 Jun 2023 08:03:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1687273421; x=1689865421; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=UiwEwjAi6lomr9E2iVsjR5pQJHgLNYXOTgd+ktx/cfE=; b=b3HJ05u6frj/MRZXkB19HJGxUZkLcKjWuG8Ol+5vFqTuO5e2lPsZOdRHOA+QVYkycC vqjr3rHyvcX5fbjKzKLPidNQDj1RZrgqtxzrw9MhLvAbh51OQWJ3czKKkMi/YCFVXTQ7 Q9Ywsn5eBSgZpbRwDXAefObDDqW1lnwAlQjs7ziHIxTeznx2bzGbB70yskgz/oRgTVo0 YCqeSeOi4VhKZLPSFN4YmtBMFhLLtdGG2IbM8plX1hQKLR457bUQqcfD/diabZvxdaV7 cKha7KePEEVvzKcDdTX3QUksohG5gRbUiHeyGoiWjERHHsiPQuDJ50298I4vfWJ5n2/u tFVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687273421; x=1689865421; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=UiwEwjAi6lomr9E2iVsjR5pQJHgLNYXOTgd+ktx/cfE=; b=XKtzM7hYijv+9swDRKBGSLTS8ftOiO4QJLU5/9mInqe61sk9Ho9zjdTGsi8N8wmudM oRkpa4Fzac0qZsgW4YSTL2lSSVAor9kPs7FmQdEBJp+VZE6C2zsex6QHuN+TzPMiibVA eqt3zqFJyvzZmryqPTmgtOGIDMMjKdxNy4ceT6FmoPHkdjgwPqPUcwY0Um9GNUAhhxx9 HNukFeIRc0fnVPyBMoKWZhZ7mr3NXVxJG7Sp//MsZBMvnrYxx3O2wCvozKQRmrnO8AxK hj5OOygsYai0lozcli48SBeEfyuziquhxwuuj0mqdjNz9wRokNcc6tELpVnwJC6riRC6 s9qw== X-Gm-Message-State: AC+VfDz+GmNjG2v2t7NJNlqXTaNkq0hE1r+JhwnaCVuxvvCreT1szYkN fFGbMOPfWOvR1Qe0QstBsc01a9CvRhGhVMzUuvA= X-Received: by 2002:adf:fd82:0:b0:30f:ce87:9db3 with SMTP id d2-20020adffd82000000b0030fce879db3mr11057461wrr.23.1687273421571; Tue, 20 Jun 2023 08:03:41 -0700 (PDT) Received: from zen.linaroharston ([85.9.250.243]) by smtp.gmail.com with ESMTPSA id r11-20020a5d498b000000b00307a86a4bcesm2187467wrq.35.2023.06.20.08.03.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Jun 2023 08:03:41 -0700 (PDT) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id B6DFD1FFBB; Tue, 20 Jun 2023 16:03:40 +0100 (BST) From: =?utf-8?q?Alex_Benn=C3=A9e?= To: qemu-devel@nongnu.org Cc: =?utf-8?q?Alex_Benn=C3=A9e?= Subject: [RFC PATCH] qemu-keymap: properly check return from xkb_keymap_mod_get_index Date: Tue, 20 Jun 2023 16:03:35 +0100 Message-Id: <20230620150335.814005-1-alex.bennee@linaro.org> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::32d; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x32d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org We can return XKB_MOD_INVALID which rightly gets flagged by sanitisers as an overly wide shift attempt. Signed-off-by: Alex Bennée --- qemu-keymap.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/qemu-keymap.c b/qemu-keymap.c index 229866e004..8c80f7a4ed 100644 --- a/qemu-keymap.c +++ b/qemu-keymap.c @@ -140,6 +140,18 @@ static void usage(FILE *out) names.options ?: "-"); } +static xkb_mod_mask_t get_mod(struct xkb_keymap *map, const char *name) +{ + xkb_mod_index_t mod; + xkb_mod_mask_t mask = 0; + + mod = xkb_keymap_mod_get_index(map, name); + if (mod != XKB_MOD_INVALID) { + mask = (1 << mod); + } + return mask; +} + int main(int argc, char *argv[]) { struct xkb_context *ctx; @@ -215,14 +227,10 @@ int main(int argc, char *argv[]) mod, xkb_keymap_mod_get_name(map, mod)); } - mod = xkb_keymap_mod_get_index(map, "Shift"); - shift = (1 << mod); - mod = xkb_keymap_mod_get_index(map, "Control"); - ctrl = (1 << mod); - mod = xkb_keymap_mod_get_index(map, "AltGr"); - altgr = (1 << mod); - mod = xkb_keymap_mod_get_index(map, "NumLock"); - numlock = (1 << mod); + shift = get_mod(map, "Shift"); + ctrl = get_mod(map, "Control"); + altgr = get_mod(map, "AltGr"); + numlock = get_mod(map, "NumLock"); state = xkb_state_new(map); xkb_keymap_key_for_each(map, walk_map, state);