xref: /freebsd/lib/libc/tests/gen/getmntinfo_test.c (revision 7c43148a974877188a930e4078a164f83da8e652)
1 /*-
2  * Copyright (c) 2017 Conrad Meyer <cem@FreeBSD.org>
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  */
26 
27 /*
28  * Limited test program for getmntinfo(3), a non-standard BSDism.
29  */
30 
31 #include <sys/param.h>
32 #include <sys/mount.h>
33 #include <sys/ucred.h>
34 
35 #include <errno.h>
36 
37 #include <atf-c.h>
38 
39 static void
40 check_mntinfo(struct statfs *mntinfo, int n)
41 {
42 	int i;
43 
44 	for (i = 0; i < n; i++) {
45 		ATF_REQUIRE_MSG(mntinfo[i].f_version == STATFS_VERSION, "%ju",
46 		    (uintmax_t)mntinfo[i].f_version);
47 		ATF_REQUIRE(mntinfo[i].f_namemax <= sizeof(mntinfo[0].f_mntonname));
48 	}
49 }
50 
51 ATF_TC_WITHOUT_HEAD(getmntinfo_test);
52 ATF_TC_BODY(getmntinfo_test, tc)
53 {
54 	int nmnts;
55 	struct statfs *mntinfo;
56 
57 	/* Test bogus mode */
58 	nmnts = getmntinfo(&mntinfo, 199);
59 	ATF_REQUIRE_MSG(nmnts == 0 && errno == EINVAL,
60 	    "getmntinfo() succeeded; errno=%d", errno);
61 
62 	/* Valid modes */
63 	nmnts = getmntinfo(&mntinfo, MNT_NOWAIT);
64 	ATF_REQUIRE_MSG(nmnts != 0, "getmntinfo(MNT_NOWAIT) failed; errno=%d",
65 	    errno);
66 
67 	check_mntinfo(mntinfo, nmnts);
68 	memset(mntinfo, 0xdf, sizeof(*mntinfo) * nmnts);
69 
70 	nmnts = getmntinfo(&mntinfo, MNT_WAIT);
71 	ATF_REQUIRE_MSG(nmnts != 0, "getmntinfo(MNT_WAIT) failed; errno=%d",
72 	    errno);
73 
74 	check_mntinfo(mntinfo, nmnts);
75 }
76 
77 ATF_TP_ADD_TCS(tp)
78 {
79 
80 	ATF_TP_ADD_TC(tp, getmntinfo_test);
81 
82 	return (atf_no_error());
83 }
84