1 /*
2 *
3 * Copyright (c) International Business Machines Corp., 2001
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20 /*
21 * NAME
22 * chdir01.c
23 *
24 * DESCRIPTION
25 * Check proper operation of chdir(): tests whether the
26 * system call can it change the current, working directory, and find a
27 * file there? Will it fail on a non-directory entry ?
28 *
29 * ALGORITHM
30 * Make a directory "Testdirectory", and create a file in it. cd into
31 * the directory and read the entry. It should be the file just
32 * created.
33 *
34 * USAGE: <for command-line>
35 * chdir01 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
36 * where, -c n : Run n copies concurrently.
37 * -e : Turn on errno logging.
38 * -i n : Execute test n times.
39 * -I x : Execute test for x seconds.
40 * -P x : Pause for x seconds between iterations.
41 * -t : Turn on syscall timing.
42 *
43 * HISTORY
44 * 07/2001 Ported by Wayne Boyer
45 *
46 * RESTRICTIONS
47 * None
48 */
49
50 #include <stdio.h>
51 #include <sys/types.h>
52 #include <dirent.h>
53 #include <errno.h>
54 #include <string.h>
55 #include <fcntl.h>
56 #include<sys/stat.h>
57 #include "test.h"
58 #include "safe_macros.h"
59
60 char *TCID = "chdir01";
61 int TST_TOTAL = 2;
62
63 void setup(void);
64 void cleanup(void);
65 static void checknames(char **, int, DIR *);
66
67 char testdir[40] = "";
68
main(int ac,char ** av)69 int main(int ac, char **av)
70 {
71 DIR *ddir, *opendir();
72 int fd;
73 char *filname = "chdirtest";
74 char *filenames[3];
75
76 int lc;
77
78 tst_parse_opts(ac, av, NULL, NULL);
79
80 setup();
81
82 for (lc = 0; TEST_LOOPING(lc); lc++) {
83
84 tst_count = 0;
85
86 SAFE_CHDIR(cleanup, testdir);
87
88 fd = SAFE_CREAT(cleanup, filname, 0000);
89 SAFE_CLOSE(cleanup, fd);
90 if ((ddir = opendir(".")) == NULL)
91 tst_brkm(TBROK | TERRNO, cleanup, "opendir(.) failed");
92
93 filenames[0] = ".";
94 filenames[1] = "..";
95 filenames[2] = filname;
96 checknames(filenames, sizeof(filenames) / sizeof(filenames[0]),
97 ddir);
98 closedir(ddir);
99
100 TEST(chdir(filname));
101
102 if (TEST_RETURN != -1)
103 tst_resm(TFAIL, "call succeeded unexpectedly");
104 else if (TEST_ERRNO != ENOTDIR)
105 tst_resm(TFAIL | TTERRNO,
106 "failed unexpectedly; wanted ENOTDIR");
107 else
108 tst_resm(TPASS, "failed as expected with ENOTDIR");
109
110 SAFE_UNLINK(cleanup, filname);
111
112 SAFE_CHDIR(cleanup, "..");
113
114 /* ELOOP */
115 SAFE_SYMLINK(cleanup, "test_eloop1", "test_eloop2");
116 SAFE_SYMLINK(cleanup, "test_eloop2", "test_eloop1");
117
118 TEST(chdir("test_eloop1"));
119
120 if (TEST_RETURN != -1) {
121 tst_resm(TFAIL, "call succeeded unexpectedly");
122 } else if (TEST_ERRNO != ELOOP) {
123 tst_resm(TFAIL | TTERRNO,
124 "failed unexpectedly; wanted ELOOP");
125 } else {
126 tst_resm(TPASS, "failed as expected with ELOOP");
127 }
128
129 SAFE_UNLINK(cleanup, "test_eloop1");
130 SAFE_UNLINK(cleanup, "test_eloop2");
131 }
132 cleanup();
133
134 tst_exit();
135
136 }
137
setup(void)138 void setup(void)
139 {
140
141 tst_sig(NOFORK, DEF_HANDLER, cleanup);
142
143 umask(0);
144
145 TEST_PAUSE;
146
147 tst_tmpdir();
148
149 sprintf(testdir, "Testdir.%d", getpid());
150
151 SAFE_MKDIR(cleanup, testdir, 0700);
152 }
153
cleanup(void)154 void cleanup(void)
155 {
156 tst_rmdir();
157 }
158
checknames(char ** pfilnames,int fnamecount,DIR * ddir)159 void checknames(char **pfilnames, int fnamecount, DIR * ddir)
160 {
161 struct dirent *dir;
162 int i, found;
163
164 found = 0;
165 while ((dir = readdir(ddir)) != NULL) {
166 for (i = 0; i < fnamecount; i++) {
167 /*
168 * if dir->d_name is not null terminated it is a bug
169 * anyway
170 */
171 if (strcmp(pfilnames[i], dir->d_name) == 0) {
172 tst_resm(TINFO, "Found file %s", dir->d_name);
173 found++;
174 }
175 }
176 }
177 if (found < fnamecount) {
178 tst_brkm(TFAIL, cleanup,
179 "Some files do not exist, but they must exist");
180 }
181 }
182