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Mon, 06 Feb 2023 03:55:21 -0800 (PST) Message-ID: Date: Mon, 6 Feb 2023 12:55:12 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Subject: Re: [PATCH] sockaddr.3type: BUGS: Document that libc should be fixed using a union Content-Language: en-US To: Xi Ruoyao , linux-man@vger.kernel.org, Rich Felker Cc: Alejandro Colomar , GCC , glibc , =?UTF-8?Q?Bastien_Roucari=c3=a8s?= , Stefan Puiu , Igor Sysoev , Andrew Clayton , Richard Biener , Zack Weinberg , Florian Weimer , Joseph Myers , Jakub Jelinek , Eric Blake References: <20230205152835.17413-1-alx@kernel.org> <0a9306fa37edeb4a989b2929de67fee8606a3d8a.camel@xry111.site> From: Alejandro Colomar In-Reply-To: <0a9306fa37edeb4a989b2929de67fee8606a3d8a.camel@xry111.site> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------8JeNdWONRs9EE0wQFFT8Ymbs" X-Spam-Status: No, score=-3.2 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,KAM_ACCOUNTPHISH,NICE_REPLY_A,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------8JeNdWONRs9EE0wQFFT8Ymbs Content-Type: multipart/mixed; boundary="------------IGfagdK0HIE8IYhGG0Tgh2Fa"; protected-headers="v1" From: Alejandro Colomar To: Xi Ruoyao , linux-man@vger.kernel.org, Rich Felker Cc: Alejandro Colomar , GCC , glibc , =?UTF-8?Q?Bastien_Roucari=c3=a8s?= , Stefan Puiu , Igor Sysoev , Andrew Clayton , Richard Biener , Zack Weinberg , Florian Weimer , Joseph Myers , Jakub Jelinek , Eric Blake Message-ID: Subject: Re: [PATCH] sockaddr.3type: BUGS: Document that libc should be fixed using a union References: <20230205152835.17413-1-alx@kernel.org> <0a9306fa37edeb4a989b2929de67fee8606a3d8a.camel@xry111.site> In-Reply-To: <0a9306fa37edeb4a989b2929de67fee8606a3d8a.camel@xry111.site> --------------IGfagdK0HIE8IYhGG0Tgh2Fa Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 SGkgWGksDQoNCk9uIDIvNi8yMyAwNzowMiwgWGkgUnVveWFvIHdyb3RlOg0KPiBPbiBTdW4s IDIwMjMtMDItMDUgYXQgMTY6MzEgKzAxMDAsIEFsZWphbmRybyBDb2xvbWFyIHZpYSBMaWJj LWFscGhhIHdyb3RlOg0KPiANCj4+IFRoZSBvbmx5IGNvcnJlY3Qgd2F5IHRvIHVzZcKgIGRp ZmZlcmVudMKgIHR5cGVzwqAgaW7CoCBhbsKgIEFQScKgIGlzDQo+PiB0aHJvdWdowqAgYcKg IHVuaW9uLg0KPiANCj4gSSBkb24ndCB0aGluayB0aGlzIHN0YXRlbWVudCBpcyB0cnVlIChp biBnZW5lcmFsKS4gIFRlY2huaWNhbGx5IHdlIGNhbg0KPiB3cml0ZSBzb21ldGhpbmcgbGlr ZSB0aGlzOg0KPiANCj4gc3RydWN0IHNvY2thZGRyIHsgLi4uIH07DQo+IHN0cnVjdCBzb2Nr YWRkcl9pbiB7IC4uLiB9Ow0KPiBzdHJ1Y3Qgc29ja2FkZHJfaW42IHsgLi4uIH07DQo+IA0K PiBpbnQgYmluZChpbnQgZmQsIGNvbnN0IHN0cnVjdCBzb2NrYWRkciAqYWRkciwgc29ja2xl bl90IGFkZHJsZW4pDQo+IHsNCj4gICAgICBpZiAoYWRkcmxlbiA8IHNpemVvZihzdHJ1Y3Qg c29ja2FkZHIpIHsNCj4gICAgICAgICAgZXJybm8gPSBFSU5WQUw7DQo+ICAgICAgICAgIHJl dHVybiAtMTsNCj4gICAgICB9DQo+IA0KPiAgICAgIC8qIGNhbm5vdCB1c2UgImFkZHItPnNh X2ZhbWlseSIgZGlyZWN0bHk6IGl0IHdpbGwgYmUgYW4gVUIgKi8NCj4gICAgICBzYV9mYW1p bHlfdCBzYV9mYW1pbHk7DQo+ICAgICAgbWVtY3B5KCZzYV9mYW1pbHksIGFkZHIsIHNpemVv ZihzYV9mYW1pbHkpKTsNCj4gDQo+ICAgICAgc3dpdGNoIChzYV9mYW1pbHkpIHsNCj4gICAg ICAgICAgY2FzZSBBRl9JTkVUOg0KPiAgICAgICAgICAgICAgcmV0dXJuIF9kb19iaW5kX2lu KGZkLCAoc3RydWN0IHNvY2thZGRyX2luICopYWRkciwgYWRkcmxlbik7DQo+ICAgICAgICAg IGNhc2UgQUZfSU5FVDY6DQo+ICAgICAgICAgICAgICByZXR1cm4gX2RvX2JpbmRfaW42KGZk LCAoc3RydWN0IHNvY2thZGRyX2luNiAqKWFkZHIsIGFkZHJsZW4pOw0KPiAgICAgICAgICAv KiBtb3JlIGNhc2VzIGZvbGxvdyBoZXJlICovDQo+ICAgICAgICAgIGRlZmF1bHQ6DQo+ICAg ICAgICAgICAgICBlcnJubyA9IEVJTlZBTDsNCj4gICAgICAgICAgICAgIHJldHVybiAtMTsN Cj4gICAgICAgICAgfQ0KPiAgICAgIH0NCj4gfQ0KPiANCj4gSW4gdGhpcyB3YXkgd2UgY2Fu IHVzZSBzb2NrYWRkcl97aW4saW42LC4uLn0gZm9yIGJpbmQoKSBzYWZlbHksIGFzIGxvbmcN Cj4gYXMgd2UgY2FuIGRpc3Rpbmd1aXNoIHRoZSAicmVhbCIgdHlwZSBvZiBhZGRyIHVzaW5n IHRoZSBsZWFkaW5nIGJ5dGUNCj4gc2VxdWVuY2UgKGFuZCB0aGUgY2FsbGVyIHVzZXMgaXQg Y2FyZWZ1bGx5KS4NCg0KVHJ1ZTsgSSBoYWRuJ3QgdGhvdWdodCBvZiBtZW1jcHkoKWluZyB0 aGUgZmlyc3QgbWVtYmVyIG9mIHRoZSBzdHJ1Y3QuICBUaGF0J3MgDQp2YWxpZDsgb3ZlcmNv bXBsaWNhdGVkIGJ1dCB2YWxpZC4NCg0KPiANCj4gQnV0IG9idmlvdXNseSBzb2NrYWRkcl9z dG9yYWdlIGNhbid0IGJlIGRpc3Rpbmd1aXNoZWQgaGVyZSwgc28gY2FzdGluZyBhDQo+IHN0 cnVjdCBzb2NrYWRkcl9zdHJvYWdlICogdG8gc3RydWN0IHNvY2thZGRyICogYW5kIHBhc3Np bmcgaXQgdG8gYmluZCgpDQo+IHdpbGwgc3RpbGwgYmUgd3JvbmcgKHVubGVzcyB3ZSBtYWtl IHNvY2thZGRyX3N0b3JhZ2UgYW4gdW5pb24gb3IgYWRkDQo+IFtbZ251OjptYXlfYWxpYXNd XSkuDQoNCkJ1dCBhcyB5b3Ugc2F5LCBpdCBzdGlsbCBsZWF2ZXMgdXMgd2l0aCBhIHF1ZXN0 aW9uLiAgV2hhdCBzaG91bGQgb25lIGRlY2xhcmUgZm9yIA0KcGFzc2luZyB0byB0aGUgc3Rh bmRhcmQgQVBJcz8gIEl0IGNhbiBvbmx5IGJlIGEgdW5pb24uICBTbyB3ZSBjYW4gZWl0aGVy IHRlbGwgDQp1c2VycyB0byBlYWNoIGNyZWF0ZSB0aGVpciBvd24gdW5pb24sIG9yIHdlIGNh biBtYWtlIHNvY2thZGRyX3N0b3JhZ2UgYmUgYSANCnVuaW9uLiAgVGhlIGxhdHRlciBzbGln aHRseSB2aW9sYXRlcyBQT1NJWCBkdWUgdG8gbmFtZXNwYWNlcyBhcyBSaWNoIG5vdGVkLCBi dXQgDQp0aGF0J3MgYSBtaW5vciB2aW9sYXRpb24sIGFuZCBQT1NJWCBjYW4gYmUgY2hhbmdl ZCB0byBhY2NvbW9kYXRlIGZvciB0aGF0Lg0KDQpJZiB3ZSBjaGFuZ2Ugc29ja2FkZHJfc3Rv cmFnZSB0byBiZSBhIHVuaW9uLCB3ZSBoYXZlIHR3byBiZW5lZml0czoNCg0KLSAgT2xkIGNv ZGUgd2hpY2ggdXNlcyBzb2NrYWRkcl9zdG9yYWdlIGlzIG1hZGUgY29uZm9ybWluZyAobm9u LVVCKSB3aXRob3V0IA0KbW9kaWZ5aW5nIHRoZSBzb3VyY2UuDQotICBVc2VycyBjYW4gaW5z cGVjdCB0aGUgc3RydWN0dXJlcy4NCg0KSWYgd2UgZG9uJ3QsIGFuZCBkZXByZWNhdGUgc29j a2FkZHJfc3RvcmFnZSwgd2Ugc2hvdWxkIHRlbGwgdXNlcnMgdG8gZGVjbGFyZSANCnRoZWly IG93biB1bmlvbnMgX2FuZF8gdHJlYXQgYWxsIHRoZXNlIHN0cnVjdHVyZXMgYXMgYmxhY2sg Ym94ZXMgd2hpY2ggY2FuIG9ubHkgDQpiZSByZWFkIGJ5IG1lbWNweSgpaW5nIHRoZWlyIGNv bnRlbnRzLg0KDQpXaGljaCBvZiB0aGUgdHdvIGRvIHdlIHdhbnQ/ICBJIHRoaW5rIGZpeGlu ZyBzb2NrYWRkcl9zdG9yYWdlIGlzIHNpbXBsZXIsIGFuZCANCmFsbG93cyBleGlzdGluZyBw cmFjdGljZSBvZiByZWFkaW5nIHRoZXNlIHN0cnVjdHVyZXMuICBUaGUgb3RoZXIgb25lIGp1 c3QgbWFrZXMgDQoob3IgcmF0aGVyIGFja25vd2xlZGdlcywgc2luY2UgaXQgaGFzIGFsd2F5 cyBiZWVuIGxpa2UgdGhhdCkgYSBsb3Qgb2YgZXhpc3RpbmcgDQpjb2RlIGludm9rZSBVQiwg YW5kIGFja25vd2xlZGdlcyB0aGF0IHlvdSBjYW4ndCBzYWZlbHkgdXNlIHRoZXNlIHN0cnVj dHVyZXMgDQp3aXRob3V0IGEgbG90IG9mIHdvcmthcm91bmRpbmcuDQoNCkNoZWVycywNCg0K QWxleA0KDQotLSANCjxodHRwOi8vd3d3LmFsZWphbmRyby1jb2xvbWFyLmVzLz4NCkdQRyBr ZXkgZmluZ2VycHJpbnQ6IEE5MzQ4NTk0Q0UzMTI4M0E4MjZGQkREOEQ1NzYzM0Q0NDFFMjVC QjUNCg== --------------IGfagdK0HIE8IYhGG0Tgh2Fa-- --------------8JeNdWONRs9EE0wQFFT8Ymbs Content-Type: application/pgp-signature; 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