Exposes holes in our API, and several platform bugs.
* modules/utimens-tests: New test.
* tests/test-utimens.h: New file.
* tests/test-futimens.h: Likewise.
* tests/test-utimens.c: Likewise.
Signed-off-by: Eric Blake <ebb9@byu.net>
2009-10-10 Eric Blake <ebb9@byu.net>
+ utimens: add test
+ * modules/utimens-tests: New test.
+ * tests/test-utimens.h: New file.
+ * tests/test-futimens.h: Likewise.
+ * tests/test-utimens.c: Likewise.
+
doc: mention timestamp portability issues
* doc/glibc-functions/lutimes.texi (lutimes): Refer to utimensat
instead.
--- /dev/null
+Files:
+tests/test-futimens.h
+tests/test-utimens.h
+tests/test-utimens.c
+
+Depends-on:
+stat-time
+stdbool
+timespec
+utimecmp
+
+configure.ac:
+
+Makefile.am:
+TESTS += test-utimens
+check_PROGRAMS += test-utimens
+test_utimens_LDADD = $(LDADD) @LIBINTL@
--- /dev/null
+/* Test of file timestamp modification functions.
+ Copyright (C) 2009 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 2 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 <http://www.gnu.org/licenses/>. */
+
+/* This file assumes that BASE and ASSERT are already defined. */
+
+#ifndef GL_TEST_UTIMENS
+# define GL_TEST_UTIMENS
+
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "stat-time.h"
+#include "timespec.h"
+#include "utimecmp.h"
+
+enum {
+ BILLION = 1000 * 1000 * 1000,
+
+ Y2K = 946684800, /* Jan 1, 2000, in seconds since epoch. */
+
+ /* Bogus positive and negative tv_nsec values closest to valid
+ range, but without colliding with UTIME_NOW or UTIME_OMIT. */
+ UTIME_BOGUS_POS = BILLION + ((UTIME_NOW == BILLION || UTIME_OMIT == BILLION)
+ ? (1 + (UTIME_NOW == BILLION + 1)
+ + (UTIME_OMIT == BILLION + 1))
+ : 0),
+ UTIME_BOGUS_NEG = -1 - ((UTIME_NOW == -1 || UTIME_OMIT == -1)
+ ? (1 + (UTIME_NOW == -2) + (UTIME_OMIT == -2))
+ : 0)
+};
+
+#endif /* GL_TEST_UTIMENS */
+
+/* This function is designed to test both gl_futimens(a,NULL,b) and
+ futimens(a,b). FUNC is the function to test. If PRINT, warn
+ before skipping tests with status 77. */
+static int
+test_futimens (int (*func) (int, struct timespec const *),
+ bool print)
+{
+ int fd = creat (BASE "file", 0600);
+ int result;
+ struct stat st1;
+ struct stat st2;
+ ASSERT (0 <= fd);
+
+ /* Sanity check. */
+ errno = 0;
+ result = func (fd, NULL);
+ if (result == -1 && errno == ENOSYS)
+ {
+ ASSERT (close (fd) == 0);
+ ASSERT (unlink (BASE "file") == 0);
+ if (print)
+ fputs ("skipping test: "
+ "setting fd time not supported on this file system\n",
+ stderr);
+ return 77;
+ }
+ ASSERT (!result);
+ ASSERT (fstat (fd, &st1) == 0);
+
+ /* Invalid arguments. */
+ errno = 0;
+ ASSERT (func (AT_FDCWD, NULL) == -1);
+ ASSERT (errno == EBADF);
+ {
+ struct timespec ts[2] = { { Y2K, UTIME_BOGUS_POS }, { Y2K, 0 } };
+ errno = 0;
+ ASSERT (func (fd, ts) == -1);
+ ASSERT (errno == EINVAL);
+ }
+ {
+ struct timespec ts[2] = { { Y2K, 0 }, { Y2K, UTIME_BOGUS_NEG } };
+ errno = 0;
+ ASSERT (func (fd, ts) == -1);
+ ASSERT (errno == EINVAL);
+ }
+ ASSERT (fstat (fd, &st2) == 0);
+ ASSERT (st1.st_atime == st2.st_atime);
+ ASSERT (get_stat_atime_ns (&st1) == get_stat_atime_ns (&st2));
+ ASSERT (utimecmp (BASE "file", &st1, &st2, 0) == 0);
+
+ /* Set both times. */
+ {
+ struct timespec ts[2] = { { Y2K, BILLION / 2 - 1 }, { Y2K, BILLION - 1 } };
+ ASSERT (func (fd, ts) == 0);
+ ASSERT (fstat (fd, &st2) == 0);
+ ASSERT (st2.st_atime == Y2K);
+ ASSERT (0 <= get_stat_atime_ns (&st2));
+ ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
+ ASSERT (st2.st_mtime == Y2K);
+ ASSERT (0 <= get_stat_mtime_ns (&st2));
+ ASSERT (get_stat_mtime_ns (&st2) < BILLION);
+ }
+
+ /* Play with UTIME_OMIT, UTIME_NOW. */
+ {
+ struct timespec ts[2] = { { BILLION, UTIME_OMIT }, { 0, UTIME_NOW } };
+ ASSERT (func (fd, ts) == 0);
+ ASSERT (fstat (fd, &st2) == 0);
+ ASSERT (st2.st_atime == Y2K);
+ ASSERT (0 <= get_stat_atime_ns (&st2));
+ ASSERT (get_stat_atime_ns (&st2) <= BILLION / 2);
+ ASSERT (utimecmp (BASE "file", &st1, &st2, 0) <= 0);
+ }
+
+ /* Cleanup. */
+ ASSERT (close (fd) == 0);
+ ASSERT (unlink (BASE "file") == 0);
+ return 0;
+}
--- /dev/null
+/* Tests of utimens.
+ Copyright (C) 2009 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 <http://www.gnu.org/licenses/>. */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009. */
+
+#include <config.h>
+
+#include "utimens.h"
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define ASSERT(expr) \
+ do \
+ { \
+ if (!(expr)) \
+ { \
+ fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+ fflush (stderr); \
+ abort (); \
+ } \
+ } \
+ while (0)
+
+#define BASE "test-utimens.t"
+
+#include "test-futimens.h"
+#include "test-utimens.h"
+
+/* Wrap gl_futimens to behave like futimens. */
+static int
+do_futimens (int fd, struct timespec const times[2])
+{
+ return gl_futimens (fd, NULL, times);
+}
+
+/* Test the use of file descriptors alongside a name. */
+static int
+do_fdutimens (char const *name, struct timespec const times[2])
+{
+ int result;
+ int fd = open (name, O_WRONLY);
+ if (fd < 0)
+ fd = open (name, O_RDONLY);
+ errno = 0;
+ result = gl_futimens (fd, name, times);
+ if (0 <= fd)
+ {
+ int saved_errno = errno;
+ close (fd);
+ errno = saved_errno;
+ }
+ return result;
+}
+
+int
+main ()
+{
+ /* Clean up any trash from prior testsuite runs. */
+ ASSERT (system ("rm -rf " BASE "*") == 0);
+
+ ASSERT (test_utimens (utimens) == 0);
+ ASSERT (test_utimens (do_fdutimens) == 0);
+ return test_futimens (do_futimens, true);
+}
--- /dev/null
+/* Test of file timestamp modification functions.
+ Copyright (C) 2009 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 2 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 <http://www.gnu.org/licenses/>. */
+
+/* This file assumes that BASE and ASSERT are already defined. */
+
+#ifndef GL_TEST_UTIMENS
+# define GL_TEST_UTIMENS
+
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "stat-time.h"
+#include "timespec.h"
+#include "utimecmp.h"
+
+enum {
+ BILLION = 1000 * 1000 * 1000,
+
+ Y2K = 946684800, /* Jan 1, 2000, in seconds since epoch. */
+
+ /* Bogus positive and negative tv_nsec values closest to valid
+ range, but without colliding with UTIME_NOW or UTIME_OMIT. */
+ UTIME_BOGUS_POS = BILLION + ((UTIME_NOW == BILLION || UTIME_OMIT == BILLION)
+ ? (1 + (UTIME_NOW == BILLION + 1)
+ + (UTIME_OMIT == BILLION + 1))
+ : 0),
+ UTIME_BOGUS_NEG = -1 - ((UTIME_NOW == -1 || UTIME_OMIT == -1)
+ ? (1 + (UTIME_NOW == -2) + (UTIME_OMIT == -2))
+ : 0)
+};
+
+#endif /* GL_TEST_UTIMENS */
+
+/* This function is designed to test both utimens(a,b) and
+ utimensat(AT_FDCWD,a,b,0). FUNC is the function to test. */
+static int
+test_utimens (int (*func) (char const *, struct timespec const *))
+{
+ struct stat st1;
+ struct stat st2;
+
+ ASSERT (close (creat (BASE "file", 0600)) == 0);
+ /* If utimens truncates to less resolution than the file system
+ supports, then time can appear to go backwards between now and
+ the follow-up utimens(file,NULL). Use UTIMECMP_TRUNCATE_SOURCE
+ to compensate, with st1 as the source. */
+ ASSERT (stat (BASE "file", &st1) == 0);
+
+ /* Invalid arguments. */
+ errno = 0;
+ ASSERT (func ("no_such", NULL) == -1);
+ ASSERT (errno == ENOENT);
+ errno = 0;
+ ASSERT (func ("", NULL) == -1);
+ ASSERT (errno == ENOENT);
+ {
+ struct timespec ts[2] = { { Y2K, UTIME_BOGUS_POS }, { Y2K, 0 } };
+ errno = 0;
+ ASSERT (func (BASE "file", ts) == -1);
+ ASSERT (errno == EINVAL);
+ }
+ {
+ struct timespec ts[2] = { { Y2K, 0 }, { Y2K, UTIME_BOGUS_NEG } };
+ errno = 0;
+ ASSERT (func (BASE "file", ts) == -1);
+ ASSERT (errno == EINVAL);
+ }
+ ASSERT (stat (BASE "file", &st2) == 0);
+ ASSERT (st1.st_atime == st2.st_atime);
+ ASSERT (get_stat_atime_ns (&st1) == get_stat_atime_ns (&st2));
+ ASSERT (utimecmp (BASE "file", &st1, &st2, 0) == 0);
+
+ /* Set both times. */
+ {
+ struct timespec ts[2] = { { Y2K, BILLION / 2 - 1 }, { Y2K, BILLION - 1 } };
+ ASSERT (func (BASE "file", ts) == 0);
+ ASSERT (stat (BASE "file", &st2) == 0);
+ ASSERT (st2.st_atime == Y2K);
+ ASSERT (0 <= get_stat_atime_ns (&st2));
+ ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
+ ASSERT (st2.st_mtime == Y2K);
+ ASSERT (0 <= get_stat_mtime_ns (&st2));
+ ASSERT (get_stat_mtime_ns (&st2) < BILLION);
+ }
+
+ /* Play with UTIME_OMIT, UTIME_NOW. */
+ {
+ struct timespec ts[2] = { { BILLION, UTIME_OMIT }, { 0, UTIME_NOW } };
+ ASSERT (func (BASE "file", ts) == 0);
+ ASSERT (stat (BASE "file", &st2) == 0);
+ ASSERT (st2.st_atime == Y2K);
+ ASSERT (0 <= get_stat_atime_ns (&st2));
+ ASSERT (get_stat_atime_ns (&st2) < BILLION / 2);
+ /* See comment above about this utimecmp call. */
+ ASSERT (0 <= utimecmp (BASE "file", &st2, &st1, UTIMECMP_TRUNCATE_SOURCE));
+ }
+
+ /* Cleanup. */
+ ASSERT (unlink (BASE "file") == 0);
+ return 0;
+}
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