1 /*
2 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
3 * AUTHOR : William Roske
4 * CO-PILOT : Dave Fenner
5 * Copyright (c) 2014 Cyril Hrubis <chrubis@suse.cz>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of version 2 of the GNU General Public License as
9 * published by the Free Software Foundation.
10 *
11 * This program is distributed in the hope that it would be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
14 *
15 * Further, this software is distributed without any warranty that it is
16 * free of the rightful claim of any third person regarding infringement
17 * or the like. Any license provided herein, whether implied or
18 * otherwise, applies only to this software file. Patent licenses, if
19 * any, provided herein do not apply to combinations of this program with
20 * other software, or any other product whatsoever.
21 *
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write the Free Software Foundation, Inc.,
24 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 *
26 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
27 * Mountain View, CA 94043, or:
28 *
29 * http://www.sgi.com
30 *
31 * For further information regarding this notice, see:
32 *
33 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/
34 */
35
36 /*
37 * Tests that link(2) succeds.
38 */
39
40 #include <sys/types.h>
41 #include <fcntl.h>
42 #include <sys/stat.h>
43 #include <errno.h>
44 #include <string.h>
45 #include <signal.h>
46 #include "test.h"
47 #include "safe_macros.h"
48
49 static void setup(void);
50 static void cleanup(void);
51
52 char *TCID = "link02";
53 int TST_TOTAL = 1;
54
55 #define OLDPATH "oldpath"
56 #define NEWPATH "newpath"
57
verify_link(void)58 static void verify_link(void)
59 {
60 struct stat fbuf, lbuf;
61
62 TEST(link(OLDPATH, NEWPATH));
63
64 if (TEST_RETURN == 0) {
65 SAFE_STAT(cleanup, OLDPATH, &fbuf);
66 SAFE_STAT(cleanup, NEWPATH, &lbuf);
67 if (fbuf.st_nlink > 1 && lbuf.st_nlink > 1 &&
68 fbuf.st_nlink == lbuf.st_nlink) {
69 tst_resm(TPASS, "link("OLDPATH","NEWPATH") "
70 "returned 0 and link counts match");
71 } else {
72 tst_resm(TFAIL, "link("OLDPATH","NEWPATH") returned 0"
73 " but stat lin count do not match %d %d",
74 (int)fbuf.st_nlink, (int)lbuf.st_nlink);
75 }
76 SAFE_UNLINK(cleanup, NEWPATH);
77 } else {
78 tst_resm(TFAIL | TTERRNO,
79 "link("OLDPATH","NEWPATH") returned %ld",
80 TEST_RETURN);
81 }
82 }
83
main(int ac,char ** av)84 int main(int ac, char **av)
85 {
86 int lc;
87
88 tst_parse_opts(ac, av, NULL, NULL);
89
90 setup();
91
92 for (lc = 0; TEST_LOOPING(lc); lc++) {
93 tst_count = 0;
94 verify_link();
95 }
96
97 cleanup();
98 tst_exit();
99 }
100
setup(void)101 static void setup(void)
102 {
103 tst_sig(NOFORK, DEF_HANDLER, cleanup);
104
105 TEST_PAUSE;
106
107 tst_tmpdir();
108
109 SAFE_TOUCH(cleanup, OLDPATH, 0700, NULL);
110 }
111
cleanup(void)112 static void cleanup(void)
113 {
114 tst_rmdir();
115 }
116