From owner-freebsd-current@freebsd.org Fri Dec 23 10:13:52 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6F443C8DC8E for ; Fri, 23 Dec 2016 10:13:52 +0000 (UTC) (envelope-from hhsheng@corp.netease.com) Received: from corp-front01-corp.i.nease.net (corp-front01-corp.i.nease.net [123.58.164.174]) by mx1.freebsd.org (Postfix) with ESMTP id 78DAF18AE for ; Fri, 23 Dec 2016 10:13:46 +0000 (UTC) (envelope-from hhsheng@corp.netease.com) Received: from E13D (unknown [218.107.55.252]) by corp-front01-corp.i.nease.net (Coremail) with SMTP id rqR4CgCXunb27FxY9QUFAA--.664S2; Fri, 23 Dec 2016 17:23:03 +0800 (HKT) Date: Fri, 23 Dec 2016 17:23:02 +0800 From: =?GB2312?B?yqK727uq?= To: freebsd-current Subject: question about libc fopen X-Priority: 3 X-Has-Attach: no X-Mailer: Foxmail 7, 2, 5, 140[cn] Mime-Version: 1.0 Message-ID: <2016122317230247683442@corp.netease.com> X-CM-TRANSID: rqR4CgCXunb27FxY9QUFAA--.664S2 X-Coremail-Antispam: 1UD129KBjvJXoW7tryDCr18tw1ruF1xXr1xuFg_yoW8uw13pa yagayIgr4kGayI9ryqk348uF1Sv3y3W3yUXrn8X34DtrZ0grs2qrsaqw4Y93W8Gr1vk34j qw4qyFZ7Xr4rZ3DanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUjblb7IF0VCYb41lb7IF0VCYb415M7k042IE4IxYO2xFxVAqjxCE w4Av424lb7Iv0xC_Zr1lb4IE77IF4wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3w A2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20xvE14v26w1j 6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26rxl6s0DM28EF7xvwVC2z280aVAFwI0_Gc CE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s0DM2kK67ZEXf0FJ3sC6x9vy-n0Xa0_ Xr1Utr1kJwI_Jr4ln4vE4IxY62xKV4CY8xCE548m6r4UJryUGwAa7VA2z4x0Y4vE2Ix0cI 8IcVCY1x0267AKxVW0oVCq3VA2z4x0Y4vE2Ix0cI8IcVAFwI0_tr0E3s0E7I0Y6sxI4wAa 7VA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVW0oVCq3VA2z4x0Y4vEx4A2jsIE14v26rxl6s 0q6x02cVCv0xWlnx0E84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_GcCE3s0E7I0Y6sxI4wAa 7VCE64xvF2IEb7IF0Fy264xvF2IEb7IF0Fy264kE64k0F2IE7I0Y6sxI4wAS0I0E0xvYzx vE52x082IY62kv0487Mc804VCqF7xvr2I5Mc02F40En4AKxVAvwIkv4cxYr24l5I8CrVC2 j2CEjI02ccxYII8I67AEr4CY67k08wAv7VACjcxG62k0Y48FwI0_Cr0_Gr1UMcIj6x8Erc xFaVAv8VW8ZwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41lFcxC0VAYjxAx ZF0Ew4CEw7xC0wACY4xI67k04243AVC20s07Mx8GjcxK6IxK0xIIj40E5I8CrwCjxxvEa2 IrMxkFs20EY4vE77kJMxkFs20EY4vE44CYbxCE4x80FwCY02Avz4vE14v_GFWlc2IjII80 xcxEwVAKI48JMxAIw28IcxkI7VAKI48JMxAIw28IcVCjz48v1sIEY20_GFyl4x8a64kIII 0Yj41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1l4IxY624lx2IqxVAqx4xG67AKxVWUGVWUWwC2 0s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1j6r15MIIYrxkI7VAKI48JMI IF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF 0xvE42xK8VAvwI8IcIk0rVWrJr0_WFyUJwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I 8E87Iv6xkF7I0E14v26r1j6r4UMVCEFcxC0VAYjxAxZFUvcSsGvfC2KfnxnUUI43ZEXa7I U57nY7UUUUU== X-CM-SenderInfo: xkkvxv1qj6u0tuso0v5whd2voofrz/1tbiAgASBVUojr4JzQABsd X-Mailman-Approved-At: Fri, 23 Dec 2016 12:09:03 +0000 Content-Type: text/plain; charset="GB2312" Content-Transfer-Encoding: base64 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Dec 2016 10:13:52 -0000 aGkgYWxsLA0KDQogICBoaX4NCiAgIHdlIGFyZSBmcm9tIENoaW5lc2UgR2FtZSBEZXZlbG9wIENv cnAsIE5ldGVhc2UuDQogICBhbmQgT25lIG9mIG91ciBwcm9kdWN0IHVzaW5nIEZyZWVCc2QgYXMg aXRzIE9TIHBsYXRmb3JtLg0KICAgVGhpcyBHYW1lIGhhcyBNaWxsaW9ucyBvZiBwbGF5ZXJzIG9u bGluZSAsIGFuZCBFYWNoIFNlcnZlciBtYXkgaG9sZHMgMjUwMDArIHRjcCBjb25uZWN0aW9uIGF0 IHRoZSBzYW1lIHRpbWUuVGhhbmtzIHRvIEJTRCBhbmQga3F1ZXVlIDopDQoNCiAgIGl0J3Mgb25l IG9mIG91ciBzZXJ2ZXIgLCBuZXRzdGF0IGNtZCB0byBsaXN0IGNvbm5lY3Rpb25zIG92ZXJhbGwu Li4NCiAgIG5ldHN0YXQgLWFuIHwgZ3JlcCAxMzM5NiAoaXQncyBvdXIgbGlzdGVuaW5nIHBvcnQp IHwgd2MgLWwgDQogICAyMzIyMQ0KDQogICAgcmVjZW50bHkgd2UgZG8gc29tZSBwZXJmb3JtYW5j ZSBvcHRpbWl6ZSBhbmQgcHJvbW90ZSB0aGlzIGNvbm5lY3Rpb24gbGltaXQgdG8gMjgwMDArIG9y IDMwMDAwKy4NCiAgQnV0IHdlIGZpbmQgRnJlZWJzZCBoYXMgYSBsaW1pdCB0aGF0IHRoaXMgaHVn ZSBvbmxpbmUgbnVtYmVyIHdpbGwgdGFrZSAyODAwMCsgZmQsIGFuZCBic2QgbGliYyBmb3BlbiBG SUxFICogc3RydWN0J3MgDQogIGZpbGVubyBvbmx5IHN1cHBvcnQgdG8gU0hPUlQgLiBzdWNoIGFz IC4uDQoNCnN0cnVjdCBfX3NGSUxFIHsNCiAuLi4NCiBzaG9ydCBfZmlsZTsgLyogKCopIGZpbGVu bywgaWYgVW5peCBkZXNjcmlwdG9yLCBlbHNlIC0xICovDQogLi4uDQoNCiAgc28gaWYgb3VyIHNl cnZlciB3YW50IHRvIGZvcGVuIHNvbWUgZmlsZSB3aGVuIHdlIHN0aWxsIGhvbGQgdGhpcyBvbmxp bmUgbnVtYmVyLCB0aGUgZm9wZW4ncyBmaWxlbm8gbWF5IGVhc2lseSBleGNlZWQNCjMyNzY3LCBh bmQgZm9wZW4gZGVmaW5pdGVseSByZXR1cm4gYSBlcnIgY29kZS4gdGhlbiB0aGUgc2VydmVyIHdp bGwgYXBwZWFyIHNvbWUgZmF0YWx5IEVSUk9SLiANCg0KICBmb3IgZXhhbXBsZSwgaWYgbXkgc2Vy dmVyIHRjcCBhbHJlYWR5IGhvbGRzIDMyMDAwIGNvbm5lY3Rpb24NCiAgZm9wZW4gb25seSBoYXMg NzY3IGZkIHRvIHVzZQ0KDQogIHRoZSBwcm9ibGVtIGhhcyBubyBidXNzaW5lc3Mgd2l0aCB0Y3Ag ZmQsIEJVVCBmb3BlbiAuLi4NCg0KICBpbiBzb21lIHBhcnRpY3VsYXIgc2l0dWxhdGlvbnMgLCBt eSBzZXJ2ZXIgd2lsbCBvcGVuIDFrKyBGSUxFICwgdGhhdCB3aWxsIGV4Y2VlZCB0aGUgZmlsZW5v IGxpbWl0LCBhbmQgb3ZlcmZsb3cgb2NjdXINCiAgbXkgc2VydmVyIGNhbid0IG9wZW4gYW55IGZp bGUgbW9yZSAsdGhhdCdzIHRoZSBwcm9ibGVtIH4NCg0KICB3ZSBkbyBhIHNpbXBsZSB0ZXN0IGFu ZCBjb25maXJtIHRoaXMgc2l0dWF0aW9uLg0KDQogIHRoZW4gaW4gZm9wZW4ncyBjb2RlICwgd2Ug bm90aWNlIHRoYXQgd2UgY2FuIHVzZSBvcGVuIHRvIHJldHVybiBhIGZkIGluc3RyZWFkIG9mIHVz aW5nIGZvcGVuIHRvIGF2b2lkIHRoaXMgb3ZlcmZsb3csIA0KICAgYXMgYmVsb3cNCg0KNjggLyog DQoxICogRmlsZSBkZXNjcmlwdG9ycyBhcmUgYSBmdWxsIGludCwgYnV0IF9maWxlIGlzIG9ubHkg YSBzaG9ydC4gDQoyICogSWYgd2UgZ2V0IGEgdmFsaWQgZmlsZSBkZXNjcmlwdG9yIHRoYXQgaXMg Z3JlYXRlciB0aGFuIA0KMyAqIFNIUlRfTUFYLCB0aGVuIHRoZSBmZCB3aWxsIGdldCBzaWduLWV4 dGVuZGVkIGludG8gYW4gDQo0ICogaW52YWxpZCBmaWxlIGRlc2NyaXB0b3IuIEhhbmRsZSB0aGlz IGNhc2UgYnkgZmFpbGluZyB0aGUgDQo1ICogb3Blbi4gDQo2ICovDQoNCiAgQlVUIC4uLiBzbyBt YW55IGxpYmMgRklMRSBzZXJpZXMgZnVuY3Rpb24gbmVlZHMgYSBGSUxFICogcG9pbnRlciBhcyBp bnB1dCBhcmd1bWVudCwgd2UgY2FuJ3QgY29udmVydCBhbGwgb2YgdGhlbSB0byBmZCwgDQpvciBp dCB3aWxsIGJlIGEgcmF0aGVyIHN1ZmZlcmluZyB0aGluZ3MgdG8gdXMuIA0KDQogIGFuZCBldmVu IGluIEJTRCAxMCAsIGl0IHNlZW1zIHRoaXMgU0hPUlQgZmlsZW5vIGxpbWl0IHN0aWxsIHRoZXJl ICwgYnV0IG90aGVyIE9TIGFzIGRlYmlhbiAsIEZJTEUgc3RydWNudCdzIGZpbGVubyBpcyBhIGlu dCAuDQoNCiAgc28gaSBmZWx0IGlmIGJzZCBvZmZpY2lhbCBjb3VsZCBjaGFuZ2UgbGliYyBGSUxF IHN0cnVjdCdzIGZpbGVubyB0byBhIFVOU0lHTkVEIFNIT1JUIHRoYXQgbWF5IGJlIGFuIGVmZmVj aWVudCBhbmQgY29udmVuaWVudCBzb2x1dGlvbiBqdXN0IGZvciBteSBjYXNlID8NCiAgVU5TSUdO RUQgU0hPUlQgZmlsZW5vIGlzIGVub3VnaCBmb3IgbWV+fn4gb3IgaSBzaG91bGQgbW9kaWZ5IGl0 IGJ5IG15c2VsZiA/DQoNCiAgTG9MLCB0aGFuayB5b3UgISEhISENCg0KeW91cnMgc2luY2VyZWx5 DQogICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICB3aW5zb24gc2hlbmcNCg0K DQp3aW5zb24gc2hlbmcNCg==