1*49cdfc7eSAndroid Build Coastguard Worker // SPDX-License-Identifier: GPL-2.0-only
2*49cdfc7eSAndroid Build Coastguard Worker /*
3*49cdfc7eSAndroid Build Coastguard Worker * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
4*49cdfc7eSAndroid Build Coastguard Worker * Copyright (c) 2020 SUSE LLC
5*49cdfc7eSAndroid Build Coastguard Worker *
6*49cdfc7eSAndroid Build Coastguard Worker * 03/30/1992 AUTHOR: William Roske CO-PILOT: Dave Fenner
7*49cdfc7eSAndroid Build Coastguard Worker *
8*49cdfc7eSAndroid Build Coastguard Worker */
9*49cdfc7eSAndroid Build Coastguard Worker
10*49cdfc7eSAndroid Build Coastguard Worker /*\
11*49cdfc7eSAndroid Build Coastguard Worker * [Description]
12*49cdfc7eSAndroid Build Coastguard Worker *
13*49cdfc7eSAndroid Build Coastguard Worker * Verify that dup(2) syscall executes successfully and allocates
14*49cdfc7eSAndroid Build Coastguard Worker * a new file descriptor which refers to the same open file as oldfd.
15*49cdfc7eSAndroid Build Coastguard Worker */
16*49cdfc7eSAndroid Build Coastguard Worker
17*49cdfc7eSAndroid Build Coastguard Worker #include "tst_test.h"
18*49cdfc7eSAndroid Build Coastguard Worker
19*49cdfc7eSAndroid Build Coastguard Worker static int fd;
20*49cdfc7eSAndroid Build Coastguard Worker static struct stat buf1, buf2;
21*49cdfc7eSAndroid Build Coastguard Worker
verify_dup(void)22*49cdfc7eSAndroid Build Coastguard Worker static void verify_dup(void)
23*49cdfc7eSAndroid Build Coastguard Worker {
24*49cdfc7eSAndroid Build Coastguard Worker TST_EXP_FD(dup(fd));
25*49cdfc7eSAndroid Build Coastguard Worker
26*49cdfc7eSAndroid Build Coastguard Worker SAFE_FSTAT(TST_RET, &buf2);
27*49cdfc7eSAndroid Build Coastguard Worker TST_EXP_EQ_LU(buf1.st_ino, buf2.st_ino);
28*49cdfc7eSAndroid Build Coastguard Worker
29*49cdfc7eSAndroid Build Coastguard Worker SAFE_CLOSE(TST_RET);
30*49cdfc7eSAndroid Build Coastguard Worker }
31*49cdfc7eSAndroid Build Coastguard Worker
setup(void)32*49cdfc7eSAndroid Build Coastguard Worker static void setup(void)
33*49cdfc7eSAndroid Build Coastguard Worker {
34*49cdfc7eSAndroid Build Coastguard Worker fd = SAFE_OPEN("dupfile", O_RDWR | O_CREAT, 0700);
35*49cdfc7eSAndroid Build Coastguard Worker SAFE_FSTAT(fd, &buf1);
36*49cdfc7eSAndroid Build Coastguard Worker }
37*49cdfc7eSAndroid Build Coastguard Worker
cleanup(void)38*49cdfc7eSAndroid Build Coastguard Worker static void cleanup(void)
39*49cdfc7eSAndroid Build Coastguard Worker {
40*49cdfc7eSAndroid Build Coastguard Worker if (fd > 0)
41*49cdfc7eSAndroid Build Coastguard Worker SAFE_CLOSE(fd);
42*49cdfc7eSAndroid Build Coastguard Worker }
43*49cdfc7eSAndroid Build Coastguard Worker
44*49cdfc7eSAndroid Build Coastguard Worker static struct tst_test test = {
45*49cdfc7eSAndroid Build Coastguard Worker .test_all = verify_dup,
46*49cdfc7eSAndroid Build Coastguard Worker .setup = setup,
47*49cdfc7eSAndroid Build Coastguard Worker .cleanup = cleanup,
48*49cdfc7eSAndroid Build Coastguard Worker .needs_tmpdir = 1,
49*49cdfc7eSAndroid Build Coastguard Worker };
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