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      1 /*-
      2  * Copyright (c) 2017 The NetBSD Foundation, Inc.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  * 1. Redistributions of source code must retain the above copyright
      9  *    notice, this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright
     11  *    notice, this list of conditions and the following disclaimer in the
     12  *    documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     15  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     16  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     17  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     18  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     19  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     20  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     21  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     22  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     23  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     24  * POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include <sys/cdefs.h>
     28 __COPYRIGHT("@(#) Copyright (c) 2013\
     29  The NetBSD Foundation, inc. All rights reserved.");
     30 __RCSID("$NetBSD: t_mtime_otrunc.c,v 1.1 2017/02/02 22:07:05 martin Exp $");
     31 
     32 #include <errno.h>
     33 #include <unistd.h>
     34 #include <stdio.h>
     35 #include <stdlib.h>
     36 #include <sys/stat.h>
     37 #include <atf-c.h>
     38 
     39 #include <rump/rump_syscalls.h>
     40 #include <rump/rump.h>
     41 
     42 #include "../common/h_fsmacros.h"
     43 
     44 #define LOCKFILE	"lock"
     45 
     46 static time_t
     47 lock_it(void)
     48 {
     49 	struct stat st;
     50 
     51 	if (rump_sys_stat(LOCKFILE, &st) != 0)
     52 		st.st_mtime = 0;
     53 
     54 	int f = rump_sys_open(LOCKFILE, O_WRONLY|O_CREAT|O_TRUNC, 0666);
     55 	if (f == -1) return 0;
     56 	rump_sys_close(f);
     57 
     58 	return st.st_mtime;
     59 }
     60 
     61 static void
     62 otrunc_mtime_update(const atf_tc_t *tc, const char *path)
     63 {
     64 	time_t last_ts = 0;
     65 	int res;
     66 
     67 	/* atf_tc_expect_fail("PR kern/51762"); */
     68 
     69 	res = rump_sys_chdir(path);
     70 	if (res == -1)
     71 		atf_tc_fail("chdir failed");
     72 
     73 	for (int i = 0; i < 5; i++) {
     74 		time_t l = lock_it();
     75 		printf("last lock: %ld\n", (long)l);
     76 		ATF_REQUIRE_MSG(i == 0 || l > last_ts,
     77 		    "iteration %d: lock time did not increase, old time %lu, "
     78 		    "new time %lu", i,
     79 		    (unsigned long)last_ts, (unsigned long)l);
     80 		last_ts = l;
     81 		sleep(2);
     82 	}
     83 	rump_sys_chdir("/");
     84 }
     85 
     86 ATF_FSAPPLY(otrunc_mtime_update, "Checks for mtime updates by open(O_TRUNC) (PR kern/51762)");
     87