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/*
* Author: Colin King <colin.king@canonical.com>
*
* Copyright (C) 2012 Canonical, Ltd.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <limits.h>
#define TEST_PASSED (0)
#define TEST_FAILED (1)
#define TEST_ERROR (2)
#define BUFF_SIZE (4096)
/*
* https://bugs.launchpad.net/ubuntu/+source/linux/+bug/719691
*
* read() on a directory should return EISDIR, but bug LP: #719691
* ecryptfs returns EINVAL in contradiction to SUSv2.
*/
int main(int argc, char **argv)
{
int fd;
int ret;
char path[PATH_MAX];
char buff[BUFF_SIZE];
if (argc < 2) {
fprintf(stderr, "Usage: path\n");
exit(TEST_ERROR);
}
snprintf(path, sizeof(path), "%s/.", argv[1]);
if ((fd = open(path, O_RDONLY)) < 0) {
fprintf(stderr, "Cannot open ./. : %s\n", strerror(errno));
exit(TEST_ERROR);
}
ret = read(fd, buff, sizeof(buff));
if (ret >= 0) {
/* Should not be abled to read a directory */
fprintf(stderr, "read() on a directory should fail, but did not\n");
close(fd);
exit(TEST_FAILED);
}
if (errno != EISDIR) {
fprintf(stderr, "read() on a directory should set errno to EISDIR, "
"instead got: %d - %s\n", errno, strerror(errno));
close(fd);
exit(TEST_FAILED);
}
close(fd);
exit(TEST_PASSED);
}
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