From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx.treblig.org (mx.treblig.org [46.235.229.95]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C937B342CB3 for ; Mon, 18 Aug 2025 16:56:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=46.235.229.95 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755536218; cv=none; b=remlnkbWxoVmhSjzOQG6NcSrYjZ1FyT3srhDhc0YyrYA48q9QlvatD2LaCMfXPA0pBLXUwWLKk+2/bUwlUEVwarv8Su1Q7TdoIECxcHJb+JRx5+DoAye+B4jc9NP1Odjs1k16W4jac5cHRKBl4qyTEp1Ci+9RwE0EfQodGpMXoc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755536218; c=relaxed/simple; bh=q4DaZOLJKA1seN5isoZsz2tYW9b74M33t5sFnbNpmUc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=SzhWNwcNofO5HxcVr0DMGw/j2OqOe7H3yEwFjg6MDKZIK0kpyjgVtuKPIV38NqMnZnv8Pog/FCfEzaJU71yV0FSdUtZAsc1YwYUHviQXvucq+eBGQdPJZ/sN1OOrvvAI5Y+dHb20KqM6Z2io7JYLZ1ymc9akMGRMDxEq4ohPFCc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=treblig.org; spf=pass smtp.mailfrom=treblig.org; dkim=pass (2048-bit key) header.d=treblig.org header.i=@treblig.org header.b=aYuTX64D; arc=none smtp.client-ip=46.235.229.95 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=treblig.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=treblig.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=treblig.org header.i=@treblig.org header.b="aYuTX64D" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=treblig.org ; s=bytemarkmx; h=MIME-Version:Message-ID:Date:Subject:From:Content-Type:From :Subject; bh=4ysOFTdrIR9pu8AlCgOtij6yA5wz6OvqH2OfsVHHr64=; b=aYuTX64DseIvEND6 a/TO7DHufNYcIi7BVuVErbMiWznctSaSaJ4BjUAbzf51yo5hgsoiys+jnqCc/AeWlUf2ClVLvyPuq J9EbambE4P+wUc8QkUNyai9lmpIuJ7+slPK+jsCOlnnvMhtoJ0DQL6KupOHuo0HDujfu12oQCFlmg P3P1rbWcYDGPPsd3Ht7LHrQZ5YIc/piteA90tSS6qvgV6reQ1jSeaaAVkyPaTsli7FEJ8qTEKOICo 5fIydsu7liauGw3aX8nG/eC8fkXT+JblFVXbr8vcXHU+OEVm++SFWM40RIcQYrlT2mXeYIQs+7E6O H0142A226mIdBh+kIg==; Received: from localhost ([127.0.0.1] helo=dalek.home.treblig.org) by mx.treblig.org with esmtp (Exim 4.96) (envelope-from ) id 1uo3A5-004eHL-2x; Mon, 18 Aug 2025 16:56:45 +0000 From: dave@treblig.org To: alx@kernel.org Cc: linux-man@vger.kernel.org, "Dr. David Alan Gilbert" Subject: [PATCH] man/man3/strftime.3: Check parameter Date: Mon, 18 Aug 2025 17:56:35 +0100 Message-ID: <20250818165636.44122-1-dave@treblig.org> X-Mailer: git-send-email 2.50.1 Precedence: bulk X-Mailing-List: linux-man@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: "Dr. David Alan Gilbert" The strftime example requires a format paramter. If you don't pass one it crashes. Check for the parameter. Signed-off-by: Dr. David Alan Gilbert --- man/man3/strftime.3 | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/man/man3/strftime.3 b/man/man3/strftime.3 index 4a3f805bb..3c1108b36 100644 --- a/man/man3/strftime.3 +++ b/man/man3/strftime.3 @@ -739,6 +739,11 @@ .SS Program source char outstr[200]; time_t t; struct tm *tmp; +\& + if (argc != 2) { + fprintf(stderr,"%s: format-string\[rs]n", argv[0]); + exit(EXIT_FAILURE); + } \& t = time(NULL); tmp = localtime(&t); -- 2.50.1