From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.kundenserver.de (mout.kundenserver.de [217.72.192.74]) by sourceware.org (Postfix) with ESMTPS id 42A103858C60 for ; Sun, 26 Sep 2021 18:41:21 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 42A103858C60 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=towo.net Authentication-Results: sourceware.org; spf=none smtp.mailfrom=towo.net Received: from [192.168.178.72] ([91.65.247.112]) by mrelayeu.kundenserver.de (mreue107 [212.227.15.183]) with ESMTPSA (Nemesis) id 1N2EHo-1myh6142fO-013atm for ; Sun, 26 Sep 2021 20:41:20 +0200 Subject: Re: Incompatible clipboard format between 32bit and 64bit cygwin To: cygwin@cygwin.com References: <20210926103325.5c17eb11c3c8a56c377199a8@nifty.ne.jp> <584f536c-b108-b562-b940-798ec2847c68@maxrnd.com> <0b13b9ac-583f-ab72-4202-f8b187946d93@towo.net> From: Thomas Wolff Message-ID: Date: Sun, 26 Sep 2021 20:41:29 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.14.0 MIME-Version: 1.0 In-Reply-To: <0b13b9ac-583f-ab72-4202-f8b187946d93@towo.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:Qjgp/Nul4nakpxi0A7q5tsnSAM2DWhTSUqvJSwhP4YpSErRJJWn xUd2mYCyA8IhjWwS2Jf1Dgd8Bf9CRabcZrZNuXlTAHGcgsYYDmuGZ/jwyXYhItbcVYWf56Z lTwdo6m9sgkSm4EsFVdOwCGShRSRuBPFGgEww5MmwHfsFrtVNJt1R9EfK8OLSEKkAEWW6HR mj8mL0UB55NOoFaoRIPGA== X-UI-Out-Filterresults: notjunk:1;V03:K0:LEUsIBi8YUM=:xIZBiOwZA2USb2/jZ82GYU I6ndbMH02GtB7ADoHjc9eQPCzIk7py2SXz4ISKim9XA8CBh1E90Ba+HGwkS3p7x8VaJ5KXDZK kmGhaWsgbYEzHlYGih0VvMUMU2RUuwR8k9CHato+tG1L8/RHtHBzm/quDa6bBdLRObstqlQya 1vxEz4xprrNmGuHk7g0mT1znnNKXQrSSIxADJ7wwEJTz2LhZni+mpPk8jZvSzrBnnOB9lcnYF qRAsFWioP2WTfdBpRNv4I7nhV7AD40K9pAUMV8CO3yWAbhPsZfr21y9RgwFULm4T7vLgGSwmB NKeXx2MmdYzonas22yNsL3bdB+6CWtljayhpcodJexV4/w/PXlaLIh0RGc4osxIufpfJjxIK5 qVv0KxAI2C3EpysUvbOrDCxrbzpQ4FK8HhH2EwiY6v6/dBJhm9n6+xKjrlvBnYae/pyf5CfU8 lpVvjs3qHTNir59hiIuiUH8Ady+Z11CTzbPLGV2Y+vzi0v43IofZi2MRytgOXLfNRvq6kbTDV BXV0Hri2K/U0NCHWImr01c5V6ls+hw7YF4+2UhVcTWyHVpmcynngKAoxyGEMEgQnxPMlq+AL0 CJ3C5wZfbIUefj+Vnor48uBjDThQ6I7gmakYybt+wz7hSsfbOlKrTrTxrI3FDu3Ahcg+tovO9 pgLtlG7I+ELAGJZnMUFDcJTjdFCOULNHHhjr/92AL7G9BYoRmE7exIVYVaAkgcg7CGNWmg1HO 7uY9MC4hkCnqiE076oLcYpF3cqrPmHP7muU+sA== X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00, BODY_8BITS, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, NICE_REPLY_A, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=no autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 Sep 2021 18:41:22 -0000 Am 26.09.2021 um 20:37 schrieb Thomas Wolff: > > Am 26.09.2021 um 11:50 schrieb Mark Geisert: >> Hi Takashi, >> >> Takashi Yano via Cygwin wrote: >>> I noticed that cygwin clipboard is not compatible >>> between 32bit and 64bit cygwin. >>> >>> If I run 'echo AAAAAAAA > /dev/clipboard' in 32bit cygwin, >>> and run 'cat /dev/clipboard' in 64bit cygwin, this result in >>> cat: /dev/clipboard: Bad address >>> >>> This is because the structure >>> typedef struct >>> { >>>    timestruc_t   timestamp; >>>    size_t    len; >>>    char      data[1]; >>> } cygcb_t; >>> defined in fhandler_clipboard.cc has different size. >>> >>> Is this the known issue? >> >> I doubt anybody has ever tried what you did. > I have and it failed; I just didn't find it important enough to report > it here... Thanks for the plan to fix it. > >> I have been testing getclip and putclip between 32- and 64-bit >> environments, but neglected to test Cygwin-internal clipboard format >> that prepends cygcb_t to the user-supplied data. As we're at it, what's the purpose of a cygwin-internal clipboard format at all? Copy/paste between 32bit/64bit mintty works; mintty uses Windows CF_UNICODETEXT clipboard format. Thomas >> So getclip and putclip will need fixing as well. >> >> I will submit a Cygwin patch to fix /dev/clipboard usage and a >> similar patch to cygutils for the utilities. >> >> I appreciate your help in uncovering and investigating bugs in >> clipboard support. >> Thanks & Regards, >> >> ..mark >> > >