From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: from minnie.tuhs.org (minnie.tuhs.org [50.116.15.146]) by inbox.vuxu.org (Postfix) with ESMTP id 5022228C85 for ; Fri, 24 May 2024 12:01:12 +0200 (CEST) Received: from minnie.tuhs.org (localhost [IPv6:::1]) by minnie.tuhs.org (Postfix) with ESMTP id D0E2E43AA2; Fri, 24 May 2024 20:01:05 +1000 (AEST) Received: from arjuna.pair.com (arjuna.pair.com [209.68.5.131]) by minnie.tuhs.org (Postfix) with ESMTPS id 30BF643AA1 for ; Fri, 24 May 2024 20:00:58 +1000 (AEST) Received: from arjuna.pair.com (localhost [127.0.0.1]) by arjuna.pair.com (Postfix) with ESMTP id 5AAE28A795 for ; Fri, 24 May 2024 06:00:57 -0400 (EDT) Received: from orac.inputplus.co.uk (57.89.115.87.dyn.plus.net [87.115.89.57]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by arjuna.pair.com (Postfix) with ESMTPSA id 3212E8A591 for ; Fri, 24 May 2024 06:00:57 -0400 (EDT) Received: from orac.inputplus.co.uk (orac.inputplus.co.uk [IPv6:::1]) by orac.inputplus.co.uk (Postfix) with ESMTP id 2B01220210 for ; Fri, 24 May 2024 11:00:56 +0100 (BST) From: Ralph Corderoy To: tuhs@tuhs.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit In-reply-to: References: <20240524071747.77477213B8@orac.inputplus.co.uk> Date: Fri, 24 May 2024 11:00:56 +0100 Message-Id: <20240524100056.2B01220210@orac.inputplus.co.uk> DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inputplus.co.uk; h=from:to:subject:mime-version:content-type:content-transfer-encoding:in-reply-to:references:date:message-id; s=pair-202402161033; bh=oLVA09BIQ47RWGatZ3+Wlcl1qF3pJMhCAtdgqJXfhME=; b=UWCm4scOyqMLE31uVsCCjVHP4L3SB4N+o6xtjVFFSzftw6EnkHoA2DbAID8IPk2nTaDznFTVlYHInJom47pbZBIRUDdOnYB2F0HPHBPXai3pZMnEbvBudP+Hh1KjZwORU4NYwy7NTw+Fufs7X0rCts1ApgVpkAmFeeQYjixF/abrMDAGxrJoaX7L2djrf/Oed4ViQTKVr3JAKaooAcp9VS65nsCpjSlCgdDYPRF2Xugnh4Vm9imisZc3QovB+Q3nW0Eb4yUdc4RdiE+nRqtFdcBl0ekTiO6Vn3F8d3QLg70PyBp4rWibrUI0kNJmhts0yiJSF7GVV+yrzLfFxJ9WUA== X-Scanned-By: mailmunge 3.11 on 209.68.5.131 Message-ID-Hash: RTGEUFFESDY2PY4F6NNSXSEONNWCNDDT X-Message-ID-Hash: RTGEUFFESDY2PY4F6NNSXSEONNWCNDDT X-MailFrom: ralph@inputplus.co.uk X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.6b1 Precedence: list Subject: [TUHS] Is fuzz testing random? (Was: A fuzzy awk) List-Id: The Unix Heritage Society mailing list Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Hi Rob, > I'm sure that's the etymology but fuzzing isn't exactly random. > That's kinda the point of it. I was just curious about the etymology, but thinking about it... The path crept along isn't random but guided by observation, say new output or increased coverage. But rather than exhaustively generate all possible inputs, a random subset is chosen to allow deeper progress to be made more quickly. -- Cheers, Ralph.