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  *	fchdir01.c
23  *
24  * DESCRIPTION
25  *	fchdir01 - create a directory and cd into it.
26  *
27  * ALGORITHM
28  *	create a new directory
29  *	open the directory and get a file descriptor
30  *	loop if that option was specified
31  *	fchdir() into the directory
32  *	check the return code
33  *	  if failure, issue a FAIL message.
34  *	otherwise,
35  *	  if doing functionality testing, call check_functionality()
36  *	  	if correct,
37  *			issue a PASS message
38  *		otherwise
39  *			issue a FAIL message
40  *	call cleanup
41  *
42  * USAGE:  <for command-line>
43  *  fchdir01 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
44  *     where,  -c n : Run n copies concurrently.
45  *             -f   : Turn off functionality Testing.
46  *	       -i n : Execute test n times.
47  *	       -I x : Execute test for x seconds.
48  *	       -P x : Pause for x seconds between iterations.
49  *	       -t   : Turn on syscall timing.
50  *
51  * HISTORY
52  *	03/2001 - Written by Wayne Boyer
53  *
54  * RESTRICTIONS
55  *	none
56  */
57 
58 #include "test.h"
59 
60 #include <sys/stat.h>
61 #include <errno.h>
62 #include <fcntl.h>
63 #include <libgen.h>
64 #include <string.h>
65 
66 void cleanup(void);
67 void setup(void);
68 
69 char *TCID = "fchdir01";
70 int TST_TOTAL = 1;
71 
72 int fd;
73 char *temp_dir;
74 const char *TEST_DIR = "alpha";
75 
76 #define MODES	S_IRWXU
77 
main(int ac,char ** av)78 int main(int ac, char **av)
79 {
80 	int lc;
81 	void check_functionality(void);
82 	int r_val;
83 
84 	tst_parse_opts(ac, av, NULL, NULL);
85 
86 	setup();		/* global setup */
87 
88 	for (lc = 0; TEST_LOOPING(lc); lc++) {
89 		tst_count = 0;
90 
91 		/* get the name of the test dirctory */
92 		if ((temp_dir = (getcwd(temp_dir, 0))) == NULL)
93 			tst_brkm(TBROK, cleanup, "getcwd failed");
94 
95 		/*
96 		 * create a new directory and open it
97 		 */
98 
99 		if ((r_val = mkdir(TEST_DIR, MODES)) == -1)
100 			tst_brkm(TBROK, cleanup, "mkdir failed");
101 
102 		if ((fd = open(TEST_DIR, O_RDONLY)) == -1)
103 			tst_brkm(TBROK, cleanup, "open of directory failed");
104 
105 		TEST(fchdir(fd));
106 
107 		if (TEST_RETURN == -1) {
108 			tst_brkm(TFAIL | TTERRNO, cleanup,
109 				 "fchdir call failed");
110 		} else {
111 				check_functionality();
112 		}
113 
114 		/*
115 		 * clean up things in case we are looping
116 		 */
117 
118 		/*
119 		 * NOTE: in case of failure here, we need to use "tst_resm()"
120 		 * and not "tst_brkm()".  This is because if we get to this
121 		 * point, we have already set a PASS or FAIL for the test
122 		 * and "tst_brkm()" won't report as we might expect.
123 		 */
124 
125 		/* chdir back to our temporary work directory */
126 		if ((r_val = chdir("..")) == -1)
127 			tst_resm(TBROK | TERRNO, "chdir failed");
128 
129 		if ((r_val = rmdir(TEST_DIR)) == -1)
130 			tst_resm(TBROK | TERRNO, "rmdir failed");
131 
132 		free(temp_dir);
133 		temp_dir = NULL;
134 	}
135 
136 	cleanup();
137 	tst_exit();
138 }
139 
check_functionality(void)140 void check_functionality(void)
141 {
142 	char *buf = NULL;
143 	char *dir;
144 
145 	if ((buf = (getcwd(buf, 0))) == NULL) {
146 		tst_brkm(TBROK, cleanup, "getcwd failed");
147 	}
148 
149 	if ((dir = basename(buf)) == NULL)
150 		tst_brkm(TBROK, cleanup, "basename failed");
151 
152 	if (strcmp(TEST_DIR, dir) == 0)
153 		tst_resm(TPASS, "fchdir call succeeded");
154 	else
155 		tst_resm(TFAIL, "fchdir call failed");
156 }
157 
setup(void)158 void setup(void)
159 {
160 
161 	tst_sig(NOFORK, DEF_HANDLER, cleanup);
162 
163 	TEST_PAUSE;
164 
165 	tst_tmpdir();
166 }
167 
cleanup(void)168 void cleanup(void)
169 {
170 	tst_rmdir();
171 }
172