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1 /*
2  * Copyright (c) International Business Machines  Corp., 2001
3  *  07/2001 Ported by Wayne Boyer
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 Foundation,
17  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18  */
19 
20 /*
21  * DESCRIPTION
22  *	This test will verify the mkdir(2) syscall basic functionality
23  */
24 
25 #include <errno.h>
26 #include <string.h>
27 #include <signal.h>
28 #include <sys/stat.h>
29 #include <sys/types.h>
30 #include <fcntl.h>
31 #include <unistd.h>
32 #include <pwd.h>
33 #include "test.h"
34 
35 void setup();
36 void cleanup();
37 
38 #define PERMS		0777
39 
40 char *TCID = "mkdir05";
41 int TST_TOTAL = 1;
42 
43 char nobody_uid[] = "nobody";
44 struct passwd *ltpuser;
45 
46 char tstdir1[100];
47 
main(int ac,char ** av)48 int main(int ac, char **av)
49 {
50 	int lc;
51 	struct stat buf;
52 
53 	/*
54 	 * parse standard options
55 	 */
56 	tst_parse_opts(ac, av, NULL, NULL);
57 
58 	/*
59 	 * perform global setup for test
60 	 */
61 	setup();
62 
63 	/*
64 	 * check looping state if -i option given
65 	 */
66 	for (lc = 0; TEST_LOOPING(lc); lc++) {
67 
68 		tst_count = 0;
69 
70 		/*
71 		 * TEST mkdir() base functionality
72 		 */
73 
74 		/* Initialize the test directory name */
75 		sprintf(tstdir1, "tstdir1.%d", getpid());
76 
77 		/* Call mkdir(2) using the TEST macro */
78 		TEST(mkdir(tstdir1, PERMS));
79 
80 		if (TEST_RETURN == -1) {
81 			tst_resm(TFAIL, "mkdir(%s, %#o) Failed",
82 				 tstdir1, PERMS);
83 			continue;
84 		}
85 
86 		if (stat(tstdir1, &buf) == -1) {
87 			tst_brkm(TBROK, cleanup, "failed to stat the "
88 				 "new directory");
89 		}
90 		/* check the owner */
91 		if (buf.st_uid != geteuid()) {
92 			tst_resm(TFAIL, "mkdir() FAILED to set owner ID"
93 				 " as process's effective ID");
94 			continue;
95 		}
96 		/* check the group ID */
97 		if (buf.st_gid != getegid()) {
98 			tst_resm(TFAIL, "mkdir() failed to set group ID"
99 				 " as the process's group ID");
100 			continue;
101 		}
102 		tst_resm(TPASS, "mkdir() functionality is correct");
103 
104 		/* clean up things in case we are looping */
105 		if (rmdir(tstdir1) == -1) {
106 			tst_brkm(TBROK, cleanup, "could not remove directory");
107 		}
108 
109 	}
110 
111 	cleanup();
112 	tst_exit();
113 }
114 
115 /*
116  * setup() - performs all ONE TIME setup for this test.
117  */
setup(void)118 void setup(void)
119 {
120 	tst_require_root();
121 
122 	ltpuser = getpwnam(nobody_uid);
123 	if (setuid(ltpuser->pw_uid) == -1) {
124 		tst_resm(TINFO, "setuid failed to "
125 			 "to set the effective uid to %d", ltpuser->pw_uid);
126 		perror("setuid");
127 	}
128 
129 	tst_sig(FORK, DEF_HANDLER, cleanup);
130 
131 	TEST_PAUSE;
132 
133 	/* Create a temporary directory and make it current. */
134 	tst_tmpdir();
135 }
136 
137 /*
138  * cleanup() - performs all ONE TIME cleanup for this test at
139  *             completion or premature exit.
140  */
cleanup(void)141 void cleanup(void)
142 {
143 
144 	/*
145 	 * Remove the temporary directory.
146 	 */
147 	tst_rmdir();
148 
149 	/*
150 	 * Exit with return code appropriate for results.
151 	 */
152 
153 }
154