1 /* 2 * Copyright (c) 2014 Fujitsu Ltd. 3 * Author: Zeng Linggang <zenglg.jy (at) cn.fujitsu.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18 * 19 */ 20 /* 21 * Test Description: 22 * Verify that, 23 * 1. pselect() fails with -1 return value and sets errno to EBADF 24 * if a file descriptor that was already closed. 25 * 2. pselect() fails with -1 return value and sets errno to EINVAL 26 * if nfds was negative. 27 * 3. pselect() fails with -1 return value and sets errno to EINVAL 28 * if the value contained within timeout was invalid. 29 */ 30 31 #include <errno.h> 32 #include "test.h" 33 #include "safe_macros.h" 34 35 TCID_DEFINE(pselect02); 36 37 static fd_set read_fds; 38 static struct timespec time_buf; 39 40 static struct test_case_t { 41 int nfds; 42 fd_set *readfds; 43 struct timespec *timeout; 44 int exp_errno; 45 } test_cases[] = { 46 {128, &read_fds, NULL, EBADF}, 47 {-1, NULL, NULL, EINVAL}, 48 {128, NULL, &time_buf, EINVAL}, 49 }; 50 51 int TST_TOTAL = ARRAY_SIZE(test_cases); 52 53 static void setup(void); 54 static void cleanup(void); 55 static void pselect_verify(const struct test_case_t *); 56 57 int main(int argc, char **argv) 58 { 59 int lc, i; 60 61 tst_parse_opts(argc, argv, NULL, NULL); 62 63 setup(); 64 65 for (lc = 0; TEST_LOOPING(lc); lc++) { 66 tst_count = 0; 67 for (i = 0; i < TST_TOTAL; i++) 68 pselect_verify(&test_cases[i]); 69 } 70 71 cleanup(); 72 tst_exit(); 73 } 74 75 static void setup(void) 76 { 77 int fd; 78 79 tst_sig(NOFORK, DEF_HANDLER, cleanup); 80 81 TEST_PAUSE; 82 83 tst_tmpdir(); 84 85 fd = SAFE_OPEN(cleanup, "test_file", O_RDWR | O_CREAT, 0777); 86 87 FD_ZERO(&read_fds); 88 FD_SET(fd, &read_fds); 89 90 SAFE_CLOSE(cleanup, fd); 91 92 time_buf.tv_sec = -1; 93 time_buf.tv_nsec = 0; 94 } 95 96 static void pselect_verify(const struct test_case_t *test) 97 { 98 TEST(pselect(test->nfds, test->readfds, NULL, NULL, test->timeout, 99 NULL)); 100 101 if (TEST_RETURN != -1) { 102 tst_resm(TFAIL, "pselect() succeeded unexpectedly"); 103 return; 104 } 105 106 if (TEST_ERRNO == test->exp_errno) { 107 tst_resm(TPASS | TTERRNO, "pselect() failed as expected"); 108 } else { 109 tst_resm(TFAIL | TTERRNO, 110 "pselect() failed unexpectedly; expected: %d - %s", 111 test->exp_errno, strerror(test->exp_errno)); 112 } 113 } 114 115 static void cleanup(void) 116 { 117 tst_rmdir(); 118 } 119