1 /*
2 * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
3 * Copyright (c) 2012 Wanlong Gao <gaowanlong@cn.fujitsu.com>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it would be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
16 *
17 */
18 /*
19 * Verify that,
20 * clone(2) returns -1 and sets errno to EINVAL if
21 * child stack is set to a zero value(NULL)
22 */
23
24 #if defined UCLINUX && !__THROW
25 /* workaround for libc bug */
26 #define __THROW
27 #endif
28
29 #include <sched.h>
30 #include <errno.h>
31 #include <sys/wait.h>
32 #include "test.h"
33 #include "clone_platform.h"
34
35 static void cleanup(void);
36 static void setup(void);
37 static int child_fn();
38
39 static void *child_stack;
40
41 static struct test_case_t {
42 int (*child_fn) ();
43 void **child_stack;
44 int exp_errno;
45 char err_desc[10];
46 } test_cases[] = {
47 {
48 child_fn, NULL, EINVAL, "EINVAL"},};
49
50 char *TCID = "clone04";
51 int TST_TOTAL = sizeof(test_cases) / sizeof(test_cases[0]);
52
main(int ac,char ** av)53 int main(int ac, char **av)
54 {
55 int lc, ind;
56 void *test_stack;
57
58 tst_parse_opts(ac, av, NULL, NULL);
59
60 setup();
61
62 for (lc = 0; TEST_LOOPING(lc); lc++) {
63 tst_count = 0;
64
65 for (ind = 0; ind < TST_TOTAL; ind++) {
66 if (test_cases[ind].child_stack == NULL) {
67 test_stack = NULL;
68 } else if (*test_cases[ind].child_stack == NULL) {
69 tst_resm(TWARN, "Can not allocate stack for"
70 "child, skipping test case");
71 continue;
72 } else {
73 test_stack = child_stack;
74 }
75
76 TEST(ltp_clone(0, test_cases[ind].child_fn, NULL,
77 CHILD_STACK_SIZE, test_stack));
78
79 if ((TEST_RETURN == -1) &&
80 (TEST_ERRNO == test_cases[ind].exp_errno)) {
81 tst_resm(TPASS, "expected failure; Got %s",
82 test_cases[ind].err_desc);
83 } else {
84 tst_resm(TFAIL | TTERRNO,
85 "Call failed to produce expected error; "
86 "expected errno %d and result -1; got result %ld",
87 test_cases[ind].exp_errno,
88 TEST_RETURN);
89 }
90 }
91 }
92
93 cleanup();
94 tst_exit();
95 }
96
setup(void)97 static void setup(void)
98 {
99 tst_sig(NOFORK, DEF_HANDLER, cleanup);
100 TEST_PAUSE;
101
102 child_stack = malloc(CHILD_STACK_SIZE);
103 }
104
cleanup(void)105 static void cleanup(void)
106 {
107 free(child_stack);
108 }
109
child_fn(void)110 static int child_fn(void)
111 {
112 exit(1);
113 }
114