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      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