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* test.c: C-based test for https://lkml.org/lkml/2012/1/11/394
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* Author: Tyler Hicks <tyhicks@canonical.com>
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* Copyright (C) 2012 Canonical, Ltd.
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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#include <sys/types.h>
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unsigned char buf[] = { 103, 0, 0, 0, 0, 220 };
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miscdev = open("/dev/ecryptfs", O_WRONLY);
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written = write(miscdev, buf, 1073741824);
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/* The write should fail */
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return written < 0 ? 0 : 2;