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      1 /* $NetBSD: t_fsync.c,v 1.2 2012/03/18 07:00:52 jruoho Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2011 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jukka Ruohonen.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 #include <sys/cdefs.h>
     32 __RCSID("$NetBSD: t_fsync.c,v 1.2 2012/03/18 07:00:52 jruoho Exp $");
     33 
     34 #include <errno.h>
     35 #include <fcntl.h>
     36 #include <stdio.h>
     37 #include <stdlib.h>
     38 #include <string.h>
     39 #include <unistd.h>
     40 
     41 #include <atf-c.h>
     42 
     43 ATF_TC(fsync_err);
     44 ATF_TC_HEAD(fsync_err, tc)
     45 {
     46 	atf_tc_set_md_var(tc, "descr",
     47 	    "Test error conditions of fsync(2) (PR kern/30)");
     48 }
     49 
     50 ATF_TC_BODY(fsync_err, tc)
     51 {
     52 	int i, fd[2];
     53 
     54 	/*
     55 	 * The fsync(2) call should fail with EBADF
     56 	 * when the 'fd' is not a valid descriptor.
     57 	 */
     58 	for (i = 1; i < 1024; i = i + 128) {
     59 
     60 		errno = 0;
     61 
     62 		ATF_REQUIRE(fsync(-i) == -1);
     63 		ATF_REQUIRE(errno == EBADF);
     64 	}
     65 
     66 	/*
     67 	 * On the other hand, EINVAL should follow
     68 	 * if the operation is not possible with
     69 	 * the file descriptor.
     70 	 */
     71 	ATF_REQUIRE(pipe(fd) == 0);
     72 
     73 	errno = 0;
     74 
     75 	ATF_REQUIRE(fsync(fd[0]) == -1);
     76 	ATF_REQUIRE(errno == EINVAL);
     77 
     78 	errno = 0;
     79 
     80 	ATF_REQUIRE(fsync(fd[1]) == -1);
     81 	ATF_REQUIRE(errno == EINVAL);
     82 
     83 	ATF_REQUIRE(close(fd[0]) == 0);
     84 	ATF_REQUIRE(close(fd[1]) == 0);
     85 }
     86 
     87 ATF_TC(fsync_sync);
     88 ATF_TC_HEAD(fsync_sync, tc)
     89 {
     90 	atf_tc_set_md_var(tc, "descr", "A basic test of fsync(2)");
     91 }
     92 
     93 ATF_TC_BODY(fsync_sync, tc)
     94 {
     95 	char buf[128];
     96 	int fd, i;
     97 
     98 	for (i = 0; i < 10; i++) {
     99 
    100 		(void)snprintf(buf, sizeof(buf), "t_fsync-%d", i);
    101 
    102 		fd = mkstemp(buf);
    103 
    104 		ATF_REQUIRE(fd != -1);
    105 		ATF_REQUIRE(write(fd, "0", 1) == 1);
    106 		ATF_REQUIRE(fsync(fd) == 0);
    107 
    108 		ATF_REQUIRE(unlink(buf) == 0);
    109 		ATF_REQUIRE(close(fd) == 0);
    110 	}
    111 }
    112 
    113 ATF_TP_ADD_TCS(tp)
    114 {
    115 
    116 	ATF_TP_ADD_TC(tp, fsync_err);
    117 	ATF_TP_ADD_TC(tp, fsync_sync);
    118 
    119 	return atf_no_error();
    120 }
    121