t_mtime_otrunc.c revision 1.1.2.2
1 1.1.2.2 pgoyette /*- 2 1.1.2.2 pgoyette * Copyright (c) 2017 The NetBSD Foundation, Inc. 3 1.1.2.2 pgoyette * All rights reserved. 4 1.1.2.2 pgoyette * 5 1.1.2.2 pgoyette * Redistribution and use in source and binary forms, with or without 6 1.1.2.2 pgoyette * modification, are permitted provided that the following conditions 7 1.1.2.2 pgoyette * are met: 8 1.1.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright 9 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer. 10 1.1.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright 11 1.1.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the 12 1.1.2.2 pgoyette * documentation and/or other materials provided with the distribution. 13 1.1.2.2 pgoyette * 14 1.1.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 15 1.1.2.2 pgoyette * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 16 1.1.2.2 pgoyette * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 1.1.2.2 pgoyette * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 18 1.1.2.2 pgoyette * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19 1.1.2.2 pgoyette * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20 1.1.2.2 pgoyette * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21 1.1.2.2 pgoyette * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22 1.1.2.2 pgoyette * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23 1.1.2.2 pgoyette * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 24 1.1.2.2 pgoyette * POSSIBILITY OF SUCH DAMAGE. 25 1.1.2.2 pgoyette */ 26 1.1.2.2 pgoyette 27 1.1.2.2 pgoyette #include <sys/cdefs.h> 28 1.1.2.2 pgoyette __COPYRIGHT("@(#) Copyright (c) 2013\ 29 1.1.2.2 pgoyette The NetBSD Foundation, inc. All rights reserved."); 30 1.1.2.2 pgoyette __RCSID("$NetBSD: t_mtime_otrunc.c,v 1.1.2.2 2017/03/20 06:57:57 pgoyette Exp $"); 31 1.1.2.2 pgoyette 32 1.1.2.2 pgoyette #include <errno.h> 33 1.1.2.2 pgoyette #include <unistd.h> 34 1.1.2.2 pgoyette #include <stdio.h> 35 1.1.2.2 pgoyette #include <stdlib.h> 36 1.1.2.2 pgoyette #include <sys/stat.h> 37 1.1.2.2 pgoyette #include <atf-c.h> 38 1.1.2.2 pgoyette 39 1.1.2.2 pgoyette #include <rump/rump_syscalls.h> 40 1.1.2.2 pgoyette #include <rump/rump.h> 41 1.1.2.2 pgoyette 42 1.1.2.2 pgoyette #include "../common/h_fsmacros.h" 43 1.1.2.2 pgoyette 44 1.1.2.2 pgoyette #define LOCKFILE "lock" 45 1.1.2.2 pgoyette 46 1.1.2.2 pgoyette static time_t 47 1.1.2.2 pgoyette lock_it(void) 48 1.1.2.2 pgoyette { 49 1.1.2.2 pgoyette struct stat st; 50 1.1.2.2 pgoyette 51 1.1.2.2 pgoyette if (rump_sys_stat(LOCKFILE, &st) != 0) 52 1.1.2.2 pgoyette st.st_mtime = 0; 53 1.1.2.2 pgoyette 54 1.1.2.2 pgoyette int f = rump_sys_open(LOCKFILE, O_WRONLY|O_CREAT|O_TRUNC, 0666); 55 1.1.2.2 pgoyette if (f == -1) return 0; 56 1.1.2.2 pgoyette rump_sys_close(f); 57 1.1.2.2 pgoyette 58 1.1.2.2 pgoyette return st.st_mtime; 59 1.1.2.2 pgoyette } 60 1.1.2.2 pgoyette 61 1.1.2.2 pgoyette static void 62 1.1.2.2 pgoyette otrunc_mtime_update(const atf_tc_t *tc, const char *path) 63 1.1.2.2 pgoyette { 64 1.1.2.2 pgoyette time_t last_ts = 0; 65 1.1.2.2 pgoyette int res; 66 1.1.2.2 pgoyette 67 1.1.2.2 pgoyette /* atf_tc_expect_fail("PR kern/51762"); */ 68 1.1.2.2 pgoyette 69 1.1.2.2 pgoyette res = rump_sys_chdir(path); 70 1.1.2.2 pgoyette if (res == -1) 71 1.1.2.2 pgoyette atf_tc_fail("chdir failed"); 72 1.1.2.2 pgoyette 73 1.1.2.2 pgoyette for (int i = 0; i < 5; i++) { 74 1.1.2.2 pgoyette time_t l = lock_it(); 75 1.1.2.2 pgoyette printf("last lock: %ld\n", (long)l); 76 1.1.2.2 pgoyette ATF_REQUIRE_MSG(i == 0 || l > last_ts, 77 1.1.2.2 pgoyette "iteration %d: lock time did not increase, old time %lu, " 78 1.1.2.2 pgoyette "new time %lu", i, 79 1.1.2.2 pgoyette (unsigned long)last_ts, (unsigned long)l); 80 1.1.2.2 pgoyette last_ts = l; 81 1.1.2.2 pgoyette sleep(2); 82 1.1.2.2 pgoyette } 83 1.1.2.2 pgoyette rump_sys_chdir("/"); 84 1.1.2.2 pgoyette } 85 1.1.2.2 pgoyette 86 1.1.2.2 pgoyette ATF_FSAPPLY(otrunc_mtime_update, "Checks for mtime updates by open(O_TRUNC) (PR kern/51762)"); 87
Indexes created Mon Oct 27 08:10:08 GMT 2025