1 /* 2 * Copyright (c) 2014 Fujitsu Ltd. 3 * Author: Xiaoguang Wang <wangxg.fnst (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 along 14 * with this program; if not, write the Free Software Foundation, Inc., 15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 16 */ 17 18 /* 19 * Description: 20 * Verify that, 21 * Basic test for fcntl(2) using F_SETPIPE_SZ, F_GETPIPE_SZ argument. 22 */ 23 24 25 #include <stdio.h> 26 #include <errno.h> 27 #include <unistd.h> 28 #include <fcntl.h> 29 #include <string.h> 30 #include <signal.h> 31 #include <sys/types.h> 32 #include <pwd.h> 33 34 #include "test.h" 35 #include "safe_macros.h" 36 #include "lapi/fcntl.h" 37 38 char *TCID = "fcntl30"; 39 int TST_TOTAL = 1; 40 41 static void setup(void); 42 static void cleanup(void); 43 44 int main(int ac, char **av) 45 { 46 int lc; 47 int pipe_fds[2], test_fd; 48 int orig_pipe_size, new_pipe_size; 49 50 51 tst_parse_opts(ac, av, NULL, NULL); 52 53 setup(); 54 55 for (lc = 0; TEST_LOOPING(lc); lc++) { 56 tst_count = 0; 57 58 SAFE_PIPE(cleanup, pipe_fds); 59 test_fd = pipe_fds[1]; 60 61 TEST(fcntl(test_fd, F_GETPIPE_SZ)); 62 if (TEST_RETURN < 0) { 63 tst_brkm(TFAIL | TTERRNO, cleanup, 64 "fcntl get pipe size failed"); 65 } 66 67 orig_pipe_size = TEST_RETURN; 68 new_pipe_size = orig_pipe_size * 2; 69 TEST(fcntl(test_fd, F_SETPIPE_SZ, new_pipe_size)); 70 if (TEST_RETURN < 0) { 71 tst_brkm(TFAIL | TTERRNO, cleanup, 72 "fcntl test F_SETPIPE_SZ failed"); 73 } 74 75 TEST(fcntl(test_fd, F_GETPIPE_SZ)); 76 if (TEST_RETURN < 0) { 77 tst_brkm(TFAIL | TTERRNO, cleanup, 78 "fcntl test F_GETPIPE_SZ failed"); 79 } 80 tst_resm(TINFO, "orig_pipe_size: %d new_pipe_size: %d", 81 orig_pipe_size, new_pipe_size); 82 if (TEST_RETURN >= new_pipe_size) { 83 tst_resm(TPASS, "fcntl test F_GETPIPE_SZ" 84 "and F_SETPIPE_SZ success"); 85 } else { 86 tst_resm(TFAIL, "fcntl test F_GETPIPE_SZ" 87 "and F_SETPIPE_SZ fail"); 88 } 89 SAFE_CLOSE(cleanup, pipe_fds[0]); 90 SAFE_CLOSE(cleanup, pipe_fds[1]); 91 } 92 93 cleanup(); 94 tst_exit(); 95 } 96 97 static void setup(void) 98 { 99 if ((tst_kvercmp(2, 6, 35)) < 0) { 100 tst_brkm(TCONF, NULL, "This test can only run on kernels" 101 "that are 2.6.35 and higher"); 102 } 103 104 tst_sig(NOFORK, DEF_HANDLER, cleanup); 105 106 TEST_PAUSE; 107 } 108 109 static void cleanup(void) 110 { 111 } 112