1 /******************************************************************************/
2 /* */
3 /* Copyright (c) Ulrich Drepper <drepper@redhat.com> */
4 /* Copyright (c) International Business Machines Corp., 2009 */
5 /* */
6 /* This program is free software; you can redistribute it and/or modify */
7 /* it under the terms of the GNU General Public License as published by */
8 /* the Free Software Foundation; either version 2 of the License, or */
9 /* (at your option) any later version. */
10 /* */
11 /* This program is distributed in the hope that it will be useful, */
12 /* but WITHOUT ANY WARRANTY; without even the implied warranty of */
13 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
14 /* the GNU General Public License for more details. */
15 /* */
16 /* You should have received a copy of the GNU General Public License */
17 /* along with this program; if not, write to the Free Software */
18 /* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
19 /* */
20 /******************************************************************************/
21 /******************************************************************************/
22 /* */
23 /* File: dup3_01.c */
24 /* */
25 /* Description: This Program tests the new system call introduced in 2.6.27. */
26 /* Ulrich´s comment as in: */
27 /* http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=336dd1f70ff62d7dd8655228caed4c5bfc818c56 */
28 /* says: */
29 /* This patch adds the new dup3 syscall. It extends the old dup2 syscall by */
30 /* one parameter which is meant to hold a flag value. Support for the */
31 /* O_CLOEXEC flag is added in this patch. The following test must be adjusted */
32 /* for architectures other than x86 and x86-64 and in case the */
33 /* syscall numbers changed. */
34 /* */
35 /* Usage: <for command-line> */
36 /* dup3_01 [-c n] [-e][-i n] [-I x] [-p x] [-t] */
37 /* where, -c n : Run n copies concurrently. */
38 /* -e : Turn on errno logging. */
39 /* -i n : Execute test n times. */
40 /* -I x : Execute test for x seconds. */
41 /* -P x : Pause for x seconds between iterations. */
42 /* -t : Turn on syscall timing. */
43 /* */
44 /* Total Tests: 1 */
45 /* */
46 /* Test Name: dup3_01 */
47 /* */
48 /* Author: Ulrich Drepper <drepper@redhat.com> */
49 /* */
50 /* History: Created - Jan 13 2009 - Ulrich Drepper <drepper@redhat.com> */
51 /* Ported to LTP */
52 /* - Jan 13 2009 - Subrata <subrata@linux.vnet.ibm.com> */
53 /******************************************************************************/
54 #include <fcntl.h>
55 #include <stdio.h>
56 #include <time.h>
57 #include <unistd.h>
58 #include <sys/syscall.h>
59 #include <errno.h>
60
61 #include "test.h"
62 #include "lapi/fcntl.h"
63 #include "linux_syscall_numbers.h"
64
65 char *TCID = "dup3_01";
66 int TST_TOTAL = 1;
67
68 /* Extern Global Functions */
69 /******************************************************************************/
70 /* */
71 /* Function: cleanup */
72 /* */
73 /* Description: Performs all one time clean up for this test on successful */
74 /* completion, premature exit or failure. Closes all temporary */
75 /* files, removes all temporary directories exits the test with */
76 /* appropriate return code by calling tst_exit() function. */
77 /* */
78 /* Input: None. */
79 /* */
80 /* Output: None. */
81 /* */
82 /* Return: On failure - Exits calling tst_exit(). Non '0' return code. */
83 /* On success - Exits calling tst_exit(). With '0' return code. */
84 /* */
85 /******************************************************************************/
cleanup(void)86 void cleanup(void)
87 {
88 tst_rmdir();
89 }
90
91 /* Local Functions */
92 /******************************************************************************/
93 /* */
94 /* Function: setup */
95 /* */
96 /* Description: Performs all one time setup for this test. This function is */
97 /* typically used to capture signals, create temporary dirs */
98 /* and temporary files that may be used in the course of this */
99 /* test. */
100 /* */
101 /* Input: None. */
102 /* */
103 /* Output: None. */
104 /* */
105 /* Return: On failure - Exits by calling cleanup(). */
106 /* On success - returns 0. */
107 /* */
108 /******************************************************************************/
setup(void)109 void setup(void)
110 {
111 /* Capture signals if any */
112 /* Create temporary directories */
113 TEST_PAUSE;
114 tst_tmpdir();
115 }
116
main(int argc,char * argv[])117 int main(int argc, char *argv[])
118 {
119 int fd, coe;
120
121 if ((tst_kvercmp(2, 6, 27)) < 0)
122 tst_brkm(TCONF, NULL,
123 "This test can only run on kernels that are 2.6.27 and higher");
124 setup();
125
126 fd = ltp_syscall(__NR_dup3, 1, 4, 0);
127 if (fd == -1) {
128 tst_brkm(TFAIL | TERRNO, cleanup, "dup3(0) failed");
129 }
130 coe = fcntl(fd, F_GETFD);
131 if (coe == -1) {
132 tst_brkm(TBROK | TERRNO, cleanup, "fcntl failed");
133 }
134 if (coe & FD_CLOEXEC) {
135 tst_brkm(TFAIL, cleanup, "dup3(0) set close-on-exec flag");
136 }
137 close(fd);
138
139 fd = ltp_syscall(__NR_dup3, 1, 4, O_CLOEXEC);
140 if (fd == -1) {
141 tst_brkm(TFAIL | TERRNO, cleanup, "dup3(O_CLOEXEC) failed");
142 }
143 coe = fcntl(fd, F_GETFD);
144 if (coe == -1) {
145 tst_brkm(TBROK | TERRNO, cleanup, "fcntl failed");
146 }
147 if ((coe & FD_CLOEXEC) == 0) {
148 tst_brkm(TFAIL, cleanup,
149 "dup3(O_CLOEXEC) set close-on-exec flag");
150 }
151 close(fd);
152 tst_resm(TPASS, "dup3(O_CLOEXEC) PASSED");
153
154 cleanup();
155 tst_exit();
156 }
157