notmuch sha1 implementation broken on (some) big-endian architectures

diff --git a/4e/cb5263f8ac915ebdca43bf9a405fb3c2530b2d b/4e/cb5263f8ac915ebdca43bf9a405fb3c2530b2d
new file mode 100644 (file)
index 0000000..b29bcd1
--- /dev/null
+++ b/4e/cb5263f8ac915ebdca43bf9a405fb3c2530b2d
@@ -0,0 +1,76 @@
+Return-Path: <david@tethera.net>\r
+X-Original-To: notmuch@notmuchmail.org\r
+Delivered-To: notmuch@notmuchmail.org\r
+Received: from localhost (localhost [127.0.0.1])\r
+       by olra.theworths.org (Postfix) with ESMTP id 30F07431FCB\r
+       for <notmuch@notmuchmail.org>; Sun, 24 Nov 2013 03:57:37 -0800 (PST)\r
+X-Virus-Scanned: Debian amavisd-new at olra.theworths.org\r
+X-Spam-Flag: NO\r
+X-Spam-Score: 0\r
+X-Spam-Level: \r
+X-Spam-Status: No, score=0 tagged_above=-999 required=5 tests=[none]\r
+       autolearn=disabled\r
+Received: from olra.theworths.org ([127.0.0.1])\r
+       by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024)\r
+       with ESMTP id FuP5Bi1-hBGP for <notmuch@notmuchmail.org>;\r
+       Sun, 24 Nov 2013 03:57:32 -0800 (PST)\r
+Received: from yantan.tethera.net (yantan.tethera.net [199.188.72.155])\r
+       (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits))\r
+       (No client certificate requested)\r
+       by olra.theworths.org (Postfix) with ESMTPS id 74822431FC3\r
+       for <notmuch@notmuchmail.org>; Sun, 24 Nov 2013 03:57:32 -0800 (PST)\r
+Received: from remotemail by yantan.tethera.net with local (Exim 4.80)\r
+       (envelope-from <david@tethera.net>)\r
+       id 1VkYJb-0006q3-8T; Sun, 24 Nov 2013 07:57:27 -0400\r
+Received: (nullmailer pid 29436 invoked by uid 1000); Sun, 24 Nov 2013\r
+       11:57:23 -0000\r
+From: David Bremner <david@tethera.net>\r
+To: notmuch@notmuchmail.org\r
+Subject: notmuch sha1 implementation broken on (some) big-endian architectures\r
+User-Agent: Notmuch/0.17~rc1 (http://notmuchmail.org) Emacs/24.3.1\r
+       (x86_64-pc-linux-gnu)\r
+Date: Sun, 24 Nov 2013 07:57:22 -0400\r
+Message-ID: <87eh666mhp.fsf@zancas.localnet>\r
+MIME-Version: 1.0\r
+Content-Type: text/plain\r
+X-BeenThere: notmuch@notmuchmail.org\r
+X-Mailman-Version: 2.1.13\r
+Precedence: list\r
+List-Id: "Use and development of the notmuch mail system."\r
+       <notmuch.notmuchmail.org>\r
+List-Unsubscribe: <http://notmuchmail.org/mailman/options/notmuch>,\r
+       <mailto:notmuch-request@notmuchmail.org?subject=unsubscribe>\r
+List-Archive: <http://notmuchmail.org/pipermail/notmuch>\r
+List-Post: <mailto:notmuch@notmuchmail.org>\r
+List-Help: <mailto:notmuch-request@notmuchmail.org?subject=help>\r
+List-Subscribe: <http://notmuchmail.org/mailman/listinfo/notmuch>,\r
+       <mailto:notmuch-request@notmuchmail.org?subject=subscribe>\r
+X-List-Received-Date: Sun, 24 Nov 2013 11:57:37 -0000\r
+\r
+\r
+The following code, when linked with libnotmuch.a and libutil.a does a\r
+passable imitation of sha1sum on amd64 (and I guess also i386) but\r
+computes a different digest on powerpc and probably sparc and s390x.\r
+\r
+In the long run we should maybe outsource hash computations to\r
+e.g. librhash, but I'd like a simpler fix for 0.17, if possible\r
+\r
+P.S. I blame Austin for adding the "missing-headers" test which found\r
+this bug ;).\r
+\r
+/* 8<----------------------------------------- */\r
+\r
+#include <stdio.h>\r
+\r
+#include "notmuch.h"\r
+char * notmuch_sha1_of_file(const char* filename);\r
+\r
+int\r
+main (int argc, char **argv)\r
+{\r
+\r
+    char *digest = notmuch_sha1_of_file (argv[1]);\r
+\r
+    printf("%s  %s\n",digest,argv[1]);\r
+    return 0;\r
+}\r