/* Test of . Copyright (C) 2007-2018 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ /* Written by James Youngman , 2007. */ #include #include "stat-time.h" #include #include #include #include #include #include #include "macros.h" #define BASE "test-stat-time.t" #include "nap.h" enum { NFILES = 4 }; static char filename_stamp1[50]; static char filename_testfile[50]; static char filename_stamp2[50]; static char filename_stamp3[50]; /* Use file names that are different at each run. This is necessary for test_birthtime() to pass on native Windows: On this platform, the file system apparently remembers the creation time of a file even after it is removed and created anew. See "Windows NT Contains File System Tunneling Capabilities" */ static void initialize_filenames (void) { long t = (long) time (NULL); sprintf (filename_stamp1, "t-stt-%ld-stamp1", t); sprintf (filename_testfile, "t-stt-%ld-testfile", t); sprintf (filename_stamp2, "t-stt-%ld-stamp2", t); sprintf (filename_stamp3, "t-stt-%ld-stamp3", t); } static int force_unlink (const char *filename) { /* This chmod is necessary on mingw, where unlink() of a read-only file fails with EPERM. */ chmod (filename, 0600); return unlink (filename); } static void cleanup (int sig) { /* Remove temporary files. */ force_unlink (filename_stamp1); force_unlink (filename_testfile); force_unlink (filename_stamp2); force_unlink (filename_stamp3); if (sig != 0) _exit (1); } static int open_file (const char *filename, int flags) { int fd = open (filename, flags | O_WRONLY, 0500); if (fd >= 0) { close (fd); return 1; } else { return 0; } } static void create_file (const char *filename) { ASSERT (open_file (filename, O_CREAT | O_EXCL)); } static void do_stat (const char *filename, struct stat *p) { ASSERT (stat (filename, p) == 0); } static void prepare_test (struct stat *statinfo, struct timespec *modtimes) { int i; create_file (filename_stamp1); nap (); create_file (filename_testfile); nap (); create_file (filename_stamp2); nap (); ASSERT (chmod (filename_testfile, 0400) == 0); nap (); create_file (filename_stamp3); do_stat (filename_stamp1, &statinfo[0]); do_stat (filename_testfile, &statinfo[1]); do_stat (filename_stamp2, &statinfo[2]); do_stat (filename_stamp3, &statinfo[3]); /* Now use our access functions. */ for (i = 0; i < NFILES; ++i) { modtimes[i] = get_stat_mtime (&statinfo[i]); } } static void test_mtime (const struct stat *statinfo, struct timespec *modtimes) { int i; /* Use the struct stat fields directly. */ /* mtime(stamp1) < mtime(stamp2) */ ASSERT (statinfo[0].st_mtime < statinfo[2].st_mtime || (statinfo[0].st_mtime == statinfo[2].st_mtime && (get_stat_mtime_ns (&statinfo[0]) < get_stat_mtime_ns (&statinfo[2])))); /* mtime(stamp2) < mtime(stamp3) */ ASSERT (statinfo[2].st_mtime < statinfo[3].st_mtime || (statinfo[2].st_mtime == statinfo[3].st_mtime && (get_stat_mtime_ns (&statinfo[2]) < get_stat_mtime_ns (&statinfo[3])))); /* Now check the result of the access functions. */ /* mtime(stamp1) < mtime(stamp2) */ ASSERT (modtimes[0].tv_sec < modtimes[2].tv_sec || (modtimes[0].tv_sec == modtimes[2].tv_sec && modtimes[0].tv_nsec < modtimes[2].tv_nsec)); /* mtime(stamp2) < mtime(stamp3) */ ASSERT (modtimes[2].tv_sec < modtimes[3].tv_sec || (modtimes[2].tv_sec == modtimes[3].tv_sec && modtimes[2].tv_nsec < modtimes[3].tv_nsec)); /* verify equivalence */ for (i = 0; i < NFILES; ++i) { struct timespec ts; ts = get_stat_mtime (&statinfo[i]); ASSERT (ts.tv_sec == statinfo[i].st_mtime); } } #if defined _WIN32 && !defined __CYGWIN__ /* Skip the ctime tests on native Windows platforms, because their st_ctime is either the same as st_mtime (plus or minus an offset) or set to the file _creation_ time, and is not influenced by rename or chmod. */ # define test_ctime(ignored) ((void) 0) #else static void test_ctime (const struct stat *statinfo) { /* On some buggy NFS clients, mtime and ctime are disproportionately skewed from one another. Skip this test in that case. */ if (statinfo[0].st_mtime != statinfo[0].st_ctime) return; /* mtime(stamp2) < ctime(testfile) */ ASSERT (statinfo[2].st_mtime < statinfo[1].st_ctime || (statinfo[2].st_mtime == statinfo[1].st_ctime && (get_stat_mtime_ns (&statinfo[2]) < get_stat_ctime_ns (&statinfo[1])))); } #endif static void test_birthtime (const struct stat *statinfo, const struct timespec *modtimes, struct timespec *birthtimes) { int i; /* Collect the birth times. */ for (i = 0; i < NFILES; ++i) { birthtimes[i] = get_stat_birthtime (&statinfo[i]); if (birthtimes[i].tv_nsec < 0) return; } /* mtime(stamp1) < birthtime(testfile) */ ASSERT (modtimes[0].tv_sec < birthtimes[1].tv_sec || (modtimes[0].tv_sec == birthtimes[1].tv_sec && modtimes[0].tv_nsec < birthtimes[1].tv_nsec)); /* birthtime(testfile) < mtime(stamp2) */ ASSERT (birthtimes[1].tv_sec < modtimes[2].tv_sec || (birthtimes[1].tv_sec == modtimes[2].tv_sec && birthtimes[1].tv_nsec < modtimes[2].tv_nsec)); } int main (void) { struct stat statinfo[NFILES]; struct timespec modtimes[NFILES]; struct timespec birthtimes[NFILES]; initialize_filenames (); #ifdef SIGHUP signal (SIGHUP, cleanup); #endif #ifdef SIGINT signal (SIGINT, cleanup); #endif #ifdef SIGQUIT signal (SIGQUIT, cleanup); #endif #ifdef SIGTERM signal (SIGTERM, cleanup); #endif cleanup (0); prepare_test (statinfo, modtimes); test_mtime (statinfo, modtimes); test_ctime (statinfo); test_birthtime (statinfo, modtimes, birthtimes); cleanup (0); return 0; }