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libvirt/tests/virfiletest.c
Daniel P. Berrange 84fd470d3d Fix bug in identifying sub-mounts
The code for extracting sub-mounts would just do a STRPREFIX
check on the mount. This was flawed because if there were
the following mounts

 /etc/aliases
 /etc/aliases.db

and '/etc/aliases' was asked for, it would return both even
though the latter isn't a sub-mount.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-11-28 11:49:01 +00:00

133 lines
4.3 KiB
C

/*
* Copyright (C) 2013 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Author: Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include <stdlib.h>
#include "testutils.h"
#include "virfile.h"
#include "virstring.h"
#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
static int testFileCheckMounts(const char *prefix,
char **gotmounts,
size_t gotnmounts,
const char *const*wantmounts,
size_t wantnmounts)
{
size_t i;
if (gotnmounts != wantnmounts) {
fprintf(stderr, "Expected %zu mounts under %s, but got %zu\n",
wantnmounts, prefix, gotnmounts);
return -1;
}
for (i = 0; i < gotnmounts; i++) {
if (STRNEQ(gotmounts[i], wantmounts[i])) {
fprintf(stderr, "Expected mount[%zu] '%s' but got '%s'\n",
i, wantmounts[i], gotmounts[i]);
return -1;
}
}
return 0;
}
struct testFileGetMountSubtreeData {
const char *path;
const char *prefix;
const char *const *mounts;
size_t nmounts;
bool rev;
};
static int testFileGetMountSubtree(const void *opaque)
{
int ret = -1;
char **gotmounts = NULL;
size_t gotnmounts = 0;
const struct testFileGetMountSubtreeData *data = opaque;
if (data->rev) {
if (virFileGetMountReverseSubtree(data->path,
data->prefix,
&gotmounts,
&gotnmounts) < 0)
goto cleanup;
} else {
if (virFileGetMountSubtree(data->path,
data->prefix,
&gotmounts,
&gotnmounts) < 0)
goto cleanup;
}
ret = testFileCheckMounts(data->prefix,
gotmounts, gotnmounts,
data->mounts, data->nmounts);
cleanup:
virStringFreeList(gotmounts);
return ret;
}
#endif /* ! defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R */
static int
mymain(void)
{
int ret = 0;
#if defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R
# define MTAB_PATH1 abs_srcdir "/virfiledata/mounts1.txt"
# define MTAB_PATH2 abs_srcdir "/virfiledata/mounts2.txt"
static const char *wantmounts1[] = {
"/proc", "/proc/sys/fs/binfmt_misc", "/proc/sys/fs/binfmt_misc",
};
static const char *wantmounts1rev[] = {
"/proc/sys/fs/binfmt_misc", "/proc/sys/fs/binfmt_misc", "/proc"
};
static const char *wantmounts2a[] = {
"/etc/aliases"
};
static const char *wantmounts2b[] = {
"/etc/aliases.db"
};
# define DO_TEST_MOUNT_SUBTREE(name, path, prefix, mounts, rev) \
do { \
struct testFileGetMountSubtreeData data = { \
path, prefix, mounts, ARRAY_CARDINALITY(mounts), rev \
}; \
if (virtTestRun(name, testFileGetMountSubtree, &data) < 0) \
ret = -1; \
} while (0)
DO_TEST_MOUNT_SUBTREE("/proc normal", MTAB_PATH1, "/proc", wantmounts1, false);
DO_TEST_MOUNT_SUBTREE("/proc reverse", MTAB_PATH1, "/proc", wantmounts1rev, true);
DO_TEST_MOUNT_SUBTREE("/etc/aliases", MTAB_PATH2, "/etc/aliases", wantmounts2a, false);
DO_TEST_MOUNT_SUBTREE("/etc/aliases.db", MTAB_PATH2, "/etc/aliases.db", wantmounts2b, false);
#endif /* ! defined HAVE_MNTENT_H && defined HAVE_GETMNTENT_R */
return ret != 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
VIRT_TEST_MAIN(mymain)