1 /* 2 * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved. 3 * Copyright (c) 2012 Wanlong Gao <gaowanlong (at) 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 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 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 } 104 105 static void cleanup(void) 106 { 107 free(child_stack); 108 } 109 110 static int child_fn(void) 111 { 112 exit(1); 113 } 114