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 * Test Name: fchmod07
22 *
23 * Test Description:
24 *  Verify that, fchmod(2) succeeds when used to change the mode permissions
25 *  of a file specified by file descriptor.
26 *
27 * Expected Result:
28 *  fchmod(2) should return 0 and the mode permissions set on file should match
29 *  the specified mode.
30 *
31 * Algorithm:
32 *  Setup:
33 *   Setup signal handling.
34 *   Create temporary directory.
35 *   Pause for SIGUSR1 if option specified.
36 *
37 *  Test:
38 *   Loop if the proper options are given.
39 *   Execute system call
40 *   Check return code, if system call failed (return=-1)
41 *   	Log the errno and Issue a FAIL message.
42 *   Otherwise,
43 *   	Verify the Functionality of system call
44 *      if successful,
45 *      	Issue Functionality-Pass message.
46 *      Otherwise,
47 *		Issue Functionality-Fail message.
48 *  Cleanup:
49 *   Print errno log and/or timing stats if options given
50 *   Delete the temporary directory created.
51 *
52 * Usage:  <for command-line>
53 *  fchmod07 [-c n] [-f] [-i n] [-I x] [-P x] [-t]
54 *     where,  -c n : Run n copies concurrently.
55 *             -f   : Turn off functionality Testing.
56 *	       -i n : Execute test n times.
57 *	       -I x : Execute test for x seconds.
58 *	       -P x : Pause for x seconds between iterations.
59 *	       -t   : Turn on syscall timing.
60 *
61 * HISTORY
62 *	07/2001 Ported by Wayne Boyer
63 *
64 * RESTRICTIONS:
65 *  None.
66 */
67
68#include <stdio.h>
69#include <sys/types.h>
70#include <sys/stat.h>
71#include <fcntl.h>
72#include <errno.h>
73#include <string.h>
74#include <signal.h>
75
76#include "test.h"
77#include "safe_macros.h"
78
79#define FILE_MODE	S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
80#define TESTFILE	"testfile"
81
82int fd;				/* file descriptor for testfile */
83char *TCID = "fchmod07";
84int TST_TOTAL = 8;		/* Total number of test conditions */
85
86int Modes[] = { 0, 07, 070, 0700, 0777, 02777, 04777, 06777 };
87
88void setup();			/* setup function for the test */
89void cleanup();			/* cleanup function for the test */
90
91int main(int ac, char **av)
92{
93	struct stat stat_buf;	/* stat(2) struct contents */
94	int lc;
95	int ind;		/* counter variable for chmod(2) tests */
96	int mode;		/* file mode permission */
97
98	TST_TOTAL = sizeof(Modes) / sizeof(int);
99
100	tst_parse_opts(ac, av, NULL, NULL);
101
102	setup();
103
104	for (lc = 0; TEST_LOOPING(lc); lc++) {
105
106		tst_count = 0;
107
108		for (ind = 0; ind < TST_TOTAL; ind++) {
109			mode = Modes[ind];
110
111			/*
112			 * Call fchmod(2) with different mode permission
113			 * bits to set it for "testfile".
114			 */
115			TEST(fchmod(fd, mode));
116
117			if (TEST_RETURN == -1) {
118				tst_resm(TFAIL, "fchmod(%d, %#o) Failed, "
119					 "errno=%d : %s", fd, mode, TEST_ERRNO,
120					 strerror(TEST_ERRNO));
121				continue;
122			}
123			/*
124			 * Get the testfile information using
125			 * fstat(2).
126			 */
127			if (fstat(fd, &stat_buf) < 0) {
128				tst_brkm(TFAIL, cleanup,
129					 "fstat(2) of "
130					 "%s failed, errno:%d",
131					 TESTFILE, TEST_ERRNO);
132			}
133			stat_buf.st_mode &= ~S_IFREG;
134
135			/*
136			 * Check for expected mode permissions
137			 * on testfile.
138			 */
139			if (stat_buf.st_mode == mode) {
140				tst_resm(TPASS,
141					 "Functionality of "
142					 "fchmod(%d, %#o) successful",
143					 fd, mode);
144			} else {
145				tst_resm(TFAIL, "%s: Incorrect modes "
146					 "0%03o, Expected 0%03o",
147					 TESTFILE, stat_buf.st_mode,
148					 mode);
149			}
150		}
151	}
152
153	cleanup();
154	tst_exit();
155}
156
157/*
158 * void
159 * setup() - performs all ONE TIME setup for this test.
160 *  Create a temporary directory and change directory to it.
161 *  Create a test file under temporary directory.
162 */
163void setup(void)
164{
165
166	tst_sig(NOFORK, DEF_HANDLER, cleanup);
167
168	TEST_PAUSE;
169
170	tst_tmpdir();
171
172	if ((fd = open(TESTFILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
173		tst_brkm(TBROK, cleanup,
174			 "open(%s, O_RDWR|O_CREAT, %o) Failed, errno=%d : %s",
175			 TESTFILE, FILE_MODE, errno, strerror(errno));
176	}
177}
178
179/*
180 * void
181 * cleanup() - performs all ONE TIME cleanup for this test at
182 *	       completion or premature exit.
183 *  Close the testfile created in the setup.
184 *  Remove the test directory and testfile created in the setup.
185 */
186void cleanup(void)
187{
188
189	/* Close the TESTFILE opened in the setup() */
190	SAFE_CLOSE(NULL, fd);
191
192	tst_rmdir();
193
194}
195