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