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 "lapi/syscalls.h"
64
65 char *TCID = "dup3_01";
66 int TST_TOTAL = 1;
67
cleanup(void)68 void cleanup(void)
69 {
70 tst_rmdir();
71 }
72
setup(void)73 void setup(void)
74 {
75 TEST_PAUSE;
76 tst_tmpdir();
77 }
78
main(int argc,char * argv[])79 int main(int argc, char *argv[])
80 {
81 int fd, coe;
82
83 tst_parse_opts(argc, argv, NULL, NULL);
84
85 if ((tst_kvercmp(2, 6, 27)) < 0)
86 tst_brkm(TCONF, NULL,
87 "This test can only run on kernels that are 2.6.27 and higher");
88 setup();
89
90 fd = ltp_syscall(__NR_dup3, 1, 4, 0);
91 if (fd == -1) {
92 tst_brkm(TFAIL | TERRNO, cleanup, "dup3(0) failed");
93 }
94 coe = fcntl(fd, F_GETFD);
95 if (coe == -1) {
96 tst_brkm(TBROK | TERRNO, cleanup, "fcntl failed");
97 }
98 if (coe & FD_CLOEXEC) {
99 tst_brkm(TFAIL, cleanup, "dup3(0) set close-on-exec flag");
100 }
101 close(fd);
102
103 fd = ltp_syscall(__NR_dup3, 1, 4, O_CLOEXEC);
104 if (fd == -1) {
105 tst_brkm(TFAIL | TERRNO, cleanup, "dup3(O_CLOEXEC) failed");
106 }
107 coe = fcntl(fd, F_GETFD);
108 if (coe == -1) {
109 tst_brkm(TBROK | TERRNO, cleanup, "fcntl failed");
110 }
111 if ((coe & FD_CLOEXEC) == 0) {
112 tst_brkm(TFAIL, cleanup,
113 "dup3(O_CLOEXEC) set close-on-exec flag");
114 }
115 close(fd);
116 tst_resm(TPASS, "dup3(O_CLOEXEC) PASSED");
117
118 cleanup();
119 tst_exit();
120 }
121