t_stat.c revision 276478 
1/* $NetBSD: t_stat.c,v 1.4 2012/03/17 08:37:08 jruoho Exp $ */
2
3/*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jukka Ruohonen.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#include <sys/cdefs.h>
32__RCSID("$NetBSD: t_stat.c,v 1.4 2012/03/17 08:37:08 jruoho Exp $");
33
34#include <sys/stat.h>
35#include <sys/socket.h>
36#include <sys/types.h>
37
38#include <arpa/inet.h>
39
40#include <atf-c.h>
41#include <errno.h>
42#include <fcntl.h>
43#include <fts.h>
44#include <limits.h>
45#include <string.h>
46#include <unistd.h>
47
48#include <stdio.h>
49
50#ifdef __FreeBSD__
51#include <netinet/in.h>
52#endif
53
54static const char *path = "stat";
55
56ATF_TC_WITH_CLEANUP(stat_chflags);
57ATF_TC_HEAD(stat_chflags, tc)
58{
59	atf_tc_set_md_var(tc, "descr", "Test chflags(2) with stat(2)");
60}
61
62ATF_TC_BODY(stat_chflags, tc)
63{
64	struct stat sa, sb;
65	int fd;
66
67	(void)memset(&sa, 0, sizeof(struct stat));
68	(void)memset(&sb, 0, sizeof(struct stat));
69
70	fd = open(path, O_RDONLY | O_CREAT);
71
72	ATF_REQUIRE(fd != -1);
73	ATF_REQUIRE(stat(path, &sa) == 0);
74	ATF_REQUIRE(chflags(path, UF_NODUMP) == 0);
75	ATF_REQUIRE(stat(path, &sb) == 0);
76
77	if (sa.st_flags == sb.st_flags)
78		atf_tc_fail("stat(2) did not detect chflags(2)");
79
80	ATF_REQUIRE(close(fd) == 0);
81	ATF_REQUIRE(unlink(path) == 0);
82}
83
84ATF_TC_CLEANUP(stat_chflags, tc)
85{
86	(void)unlink(path);
87}
88
89ATF_TC(stat_dir);
90ATF_TC_HEAD(stat_dir, tc)
91{
92	atf_tc_set_md_var(tc, "descr", "Test stat(2) with directories");
93}
94
95ATF_TC_BODY(stat_dir, tc)
96{
97	const short depth = 2;
98	struct stat sa, sb;
99	char *argv[2];
100	FTSENT *ftse;
101	FTS *fts;
102	int ops;
103
104	argv[1] = NULL;
105	argv[0] = __UNCONST("/");
106
107	ops = FTS_NOCHDIR;
108	ops |= FTS_PHYSICAL;
109
110	fts = fts_open(argv, ops, NULL);
111	ATF_REQUIRE(fts != NULL);
112
113	while ((ftse = fts_read(fts)) != NULL) {
114
115		if (ftse->fts_level < 1)
116			continue;
117
118		if (ftse->fts_level > depth) {
119			(void)fts_set(fts, ftse, FTS_SKIP);
120			continue;
121		}
122
123		switch(ftse->fts_info) {
124
125		case FTS_DP:
126
127			(void)memset(&sa, 0, sizeof(struct stat));
128			(void)memset(&sb, 0, sizeof(struct stat));
129
130			ATF_REQUIRE(stat(ftse->fts_parent->fts_path,&sa) == 0);
131			ATF_REQUIRE(chdir(ftse->fts_path) == 0);
132			ATF_REQUIRE(stat(".", &sb) == 0);
133
134			/*
135			 * The previous two stat(2) calls
136			 * should be for the same directory.
137			 */
138			if (sa.st_dev != sb.st_dev || sa.st_ino != sb.st_ino)
139				atf_tc_fail("inconsistent stat(2)");
140
141			/*
142			 * Check that fts(3)'s stat(2)
143			 * call equals the manual one.
144			 */
145			if (sb.st_ino != ftse->fts_statp->st_ino)
146				atf_tc_fail("stat(2) and fts(3) differ");
147
148			break;
149
150		default:
151			break;
152		}
153	}
154
155	(void)fts_close(fts);
156}
157
158ATF_TC(stat_err);
159ATF_TC_HEAD(stat_err, tc)
160{
161	atf_tc_set_md_var(tc, "descr", "Test errors from the stat(2) family");
162}
163
164ATF_TC_BODY(stat_err, tc)
165{
166	char buf[NAME_MAX + 1];
167	struct stat st;
168
169	(void)memset(buf, 'x', sizeof(buf));
170
171	errno = 0;
172	ATF_REQUIRE_ERRNO(EBADF, fstat(-1, &st) == -1);
173
174	errno = 0;
175	ATF_REQUIRE_ERRNO(ENAMETOOLONG, stat(buf, &st) == -1);
176
177	errno = 0;
178	ATF_REQUIRE_ERRNO(ENAMETOOLONG, lstat(buf, &st) == -1);
179
180	errno = 0;
181	ATF_REQUIRE_ERRNO(EFAULT, stat((void *)-1, &st) == -1);
182
183	errno = 0;
184	ATF_REQUIRE_ERRNO(EFAULT, lstat((void *)-1, &st) == -1);
185
186	errno = 0;
187	ATF_REQUIRE_ERRNO(EFAULT, stat("/etc/passwd", (void *)-1) == -1);
188
189	errno = 0;
190	ATF_REQUIRE_ERRNO(EFAULT, lstat("/etc/passwd", (void *)-1) == -1);
191
192	errno = 0;
193	ATF_REQUIRE_ERRNO(ENOENT, stat("/a/b/c/d/e/f/g/h/i/j/k", &st) == -1);
194
195	errno = 0;
196	ATF_REQUIRE_ERRNO(ENOENT, lstat("/a/b/c/d/e/f/g/h/i/j/k", &st) == -1);
197}
198
199ATF_TC_WITH_CLEANUP(stat_mtime);
200ATF_TC_HEAD(stat_mtime, tc)
201{
202	atf_tc_set_md_var(tc, "descr", "Test modification times with stat(2)");
203}
204
205ATF_TC_BODY(stat_mtime, tc)
206{
207	struct stat sa, sb;
208	int fd[3];
209	size_t i;
210
211	for (i = 0; i < __arraycount(fd); i++) {
212
213		(void)memset(&sa, 0, sizeof(struct stat));
214		(void)memset(&sb, 0, sizeof(struct stat));
215
216		fd[i] = open(path, O_WRONLY | O_CREAT);
217
218		ATF_REQUIRE(fd[i] != -1);
219		ATF_REQUIRE(write(fd[i], "X", 1) == 1);
220		ATF_REQUIRE(stat(path, &sa) == 0);
221
222		(void)sleep(1);
223
224		ATF_REQUIRE(write(fd[i], "X", 1) == 1);
225		ATF_REQUIRE(stat(path, &sb) == 0);
226
227		ATF_REQUIRE(close(fd[i]) == 0);
228		ATF_REQUIRE(unlink(path) == 0);
229
230		if (sa.st_mtime == sb.st_mtime)
231			atf_tc_fail("mtimes did not change");
232	}
233}
234
235ATF_TC_CLEANUP(stat_mtime, tc)
236{
237	(void)unlink(path);
238}
239
240ATF_TC_WITH_CLEANUP(stat_perm);
241ATF_TC_HEAD(stat_perm, tc)
242{
243	atf_tc_set_md_var(tc, "descr", "Test permissions with stat(2)");
244	atf_tc_set_md_var(tc, "require.user", "root");
245}
246
247ATF_TC_BODY(stat_perm, tc)
248{
249	struct stat sa, sb;
250	gid_t gid;
251	uid_t uid;
252	int fd;
253
254	(void)memset(&sa, 0, sizeof(struct stat));
255	(void)memset(&sb, 0, sizeof(struct stat));
256
257	uid = getuid();
258	gid = getgid();
259
260	fd = open(path, O_RDONLY | O_CREAT);
261
262	ATF_REQUIRE(fd != -1);
263	ATF_REQUIRE(fstat(fd, &sa) == 0);
264	ATF_REQUIRE(stat(path, &sb) == 0);
265
266	if (gid != sa.st_gid || sa.st_gid != sb.st_gid)
267		atf_tc_fail("invalid GID");
268
269	if (uid != sa.st_uid || sa.st_uid != sb.st_uid)
270		atf_tc_fail("invalid UID");
271
272	ATF_REQUIRE(close(fd) == 0);
273	ATF_REQUIRE(unlink(path) == 0);
274}
275
276ATF_TC_CLEANUP(stat_perm, tc)
277{
278	(void)unlink(path);
279}
280
281ATF_TC_WITH_CLEANUP(stat_size);
282ATF_TC_HEAD(stat_size, tc)
283{
284	atf_tc_set_md_var(tc, "descr", "Test file sizes with stat(2)");
285}
286
287ATF_TC_BODY(stat_size, tc)
288{
289	struct stat sa, sb, sc;
290	const size_t n = 10;
291	size_t i;
292	int fd;
293
294	fd = open(path, O_WRONLY | O_CREAT);
295	ATF_REQUIRE(fd >= 0);
296
297	for (i = 0; i < n; i++) {
298
299		(void)memset(&sa, 0, sizeof(struct stat));
300		(void)memset(&sb, 0, sizeof(struct stat));
301		(void)memset(&sc, 0, sizeof(struct stat));
302
303		ATF_REQUIRE(fstat(fd, &sa) == 0);
304		ATF_REQUIRE(write(fd, "X", 1) == 1);
305		ATF_REQUIRE(fstat(fd, &sb) == 0);
306		ATF_REQUIRE(stat(path, &sc) == 0);
307
308		if (sa.st_size + 1 != sb.st_size)
309			atf_tc_fail("invalid file size");
310
311		if (sb.st_size != sc.st_size)
312			atf_tc_fail("stat(2) and fstat(2) mismatch");
313	}
314
315	ATF_REQUIRE(close(fd) == 0);
316	ATF_REQUIRE(unlink(path) == 0);
317}
318
319ATF_TC_CLEANUP(stat_size, tc)
320{
321	(void)unlink(path);
322}
323
324ATF_TC(stat_socket);
325ATF_TC_HEAD(stat_socket, tc)
326{
327	atf_tc_set_md_var(tc, "descr", "Test fstat(2) with "
328	    "a socket (PR kern/46077)");
329}
330
331ATF_TC_BODY(stat_socket, tc)
332{
333	struct sockaddr_in addr;
334	struct stat st;
335	uint32_t iaddr;
336	int fd, flags;
337
338	(void)memset(&st, 0, sizeof(struct stat));
339	(void)memset(&addr, 0, sizeof(struct sockaddr_in));
340
341	fd = socket(AF_INET, SOCK_STREAM, 0);
342	ATF_REQUIRE(fd >= 0);
343
344	flags = fcntl(fd, F_GETFL);
345
346	ATF_REQUIRE(flags != -1);
347	ATF_REQUIRE(fcntl(fd, F_SETFL, flags | O_NONBLOCK) != -1);
348	ATF_REQUIRE(inet_pton(AF_INET, "127.0.0.1", &iaddr) == 1);
349
350	addr.sin_port = htons(42);
351	addr.sin_family = AF_INET;
352	addr.sin_addr.s_addr = iaddr;
353
354	errno = 0;
355
356	ATF_REQUIRE_ERRNO(EINPROGRESS,
357	    connect(fd, (struct sockaddr *)&addr,
358		sizeof(struct sockaddr_in)) == -1);
359
360	errno = 0;
361
362	if (fstat(fd, &st) != 0 || errno != 0)
363		atf_tc_fail("fstat(2) failed for a EINPROGRESS socket");
364
365	(void)close(fd);
366}
367
368ATF_TC_WITH_CLEANUP(stat_symlink);
369ATF_TC_HEAD(stat_symlink, tc)
370{
371	atf_tc_set_md_var(tc, "descr", "Test symbolic links with stat(2)");
372}
373
374ATF_TC_BODY(stat_symlink, tc)
375{
376	const char *pathlink = "pathlink";
377	struct stat sa, sb;
378	int fd;
379
380	(void)memset(&sa, 0, sizeof(struct stat));
381	(void)memset(&sb, 0, sizeof(struct stat));
382
383	fd = open(path, O_WRONLY | O_CREAT);
384
385	ATF_REQUIRE(fd >= 0);
386	ATF_REQUIRE(symlink(path, pathlink) == 0);
387	ATF_REQUIRE(stat(pathlink, &sa) == 0);
388	ATF_REQUIRE(lstat(pathlink, &sb) == 0);
389
390	if (S_ISLNK(sa.st_mode) != 0)
391		atf_tc_fail("stat(2) detected symbolic link");
392
393	if (S_ISLNK(sb.st_mode) == 0)
394		atf_tc_fail("lstat(2) did not detect symbolic link");
395
396	if (sa.st_mode == sb.st_mode)
397		atf_tc_fail("inconsistencies between stat(2) and lstat(2)");
398
399	ATF_REQUIRE(unlink(path) == 0);
400	ATF_REQUIRE(unlink(pathlink) == 0);
401}
402
403ATF_TC_CLEANUP(stat_symlink, tc)
404{
405	(void)unlink(path);
406}
407
408ATF_TP_ADD_TCS(tp)
409{
410
411	ATF_TP_ADD_TC(tp, stat_chflags);
412	ATF_TP_ADD_TC(tp, stat_dir);
413	ATF_TP_ADD_TC(tp, stat_err);
414	ATF_TP_ADD_TC(tp, stat_mtime);
415	ATF_TP_ADD_TC(tp, stat_perm);
416	ATF_TP_ADD_TC(tp, stat_size);
417	ATF_TP_ADD_TC(tp, stat_socket);
418	ATF_TP_ADD_TC(tp, stat_symlink);
419
420	return atf_no_error();
421}
422