mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-01 03:53:33 +00:00
6e6fc38935
Commit bc6c183 introduced a bunch of discrepancies between what files
look like in the repo and what clang-format says they should look like.
However, there were already a few discrepancies prior to that. Most of
these discrepancies seemed to be unintentional, but a few of them were
load-bearing (e.g., a #include that violated header ordering needing
something to have been #defined by a 'later' #include.)
I opted to take what I hope is a relatively smooth-brained approach: I
reverted the .clang-format change, ran clang-format on the whole repo,
reapplied the .clang-format change, reran clang-format again, and then
reverted the commit that contained the first run. Thus the full effect
of this PR should only be to apply the changed formatting rules to the
repo, and from skimming the results, this seems to be the case.
My work can be checked by applying the short, manual commits, and then
rerunning the command listed in the autogenerated commits (those whose
messages I have prefixed auto:) and seeing if your results agree.
It might be that the other diffs should be fixed at some point but I'm
leaving that aside for now.
fd '\.c(c|pp)?$' --print0| xargs -0 clang-format -i
518 lines
18 KiB
C
518 lines
18 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/calls.h"
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#include "libc/calls/internal.h"
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#include "libc/calls/struct/stat.h"
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#include "libc/calls/struct/timespec.h"
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#include "libc/calls/syscall-sysv.internal.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/macros.internal.h"
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#include "libc/mem/gc.h"
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#include "libc/runtime/runtime.h"
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#include "libc/stdio/stdio.h"
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#include "libc/str/str.h"
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#include "libc/sysv/consts/at.h"
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#include "libc/sysv/consts/f.h"
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#include "libc/sysv/consts/fd.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/consts/s.h"
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#include "libc/testlib/subprocess.h"
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#include "libc/testlib/testlib.h"
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#include "libc/x/x.h"
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#include "libc/x/xasprintf.h"
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#define abs(rel) gc(xasprintf("%s/%s", gc(getcwd(0, 0)), rel))
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void SetUpOnce(void) {
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testlib_enable_tmp_setup_teardown();
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ASSERT_SYS(0, 0, pledge("stdio rpath wpath cpath fattr proc id", 0));
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}
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TEST(open, efault) {
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ASSERT_SYS(EFAULT, -1, open(0, O_RDONLY));
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if (IsWindows() || !IsAsan())
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return; // not possible
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ASSERT_SYS(EFAULT, -1, open((void *)77, O_RDONLY));
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}
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TEST(open, enoent) {
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ASSERT_SYS(ENOENT, -1, open("", O_RDONLY));
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ASSERT_SYS(ENOENT, -1, open("doesnotexist", O_RDONLY));
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ASSERT_SYS(ENOENT, -1, open("o/doesnotexist", O_RDONLY));
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}
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TEST(open, enotdir) {
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ASSERT_SYS(0, 0, touch("o", 0644));
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ASSERT_SYS(ENOTDIR, -1, open("o/", O_RDONLY));
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ASSERT_SYS(ENOTDIR, -1, open("o/.", O_RDONLY));
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ASSERT_SYS(ENOTDIR, -1, open("o/./", O_RDONLY));
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ASSERT_SYS(ENOTDIR, -1, open("o/doesnotexist", O_RDONLY));
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}
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TEST(open, eexist) {
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ASSERT_SYS(0, 0, touch("exists", 0644));
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ASSERT_SYS(EEXIST, -1, open("exists", O_WRONLY | O_CREAT | O_EXCL, 0644));
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}
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TEST(open, doubleSlash_worksAndGetsNormalizedOnWindows) {
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ASSERT_SYS(0, 0, mkdir("o", 0755));
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ASSERT_SYS(0, 3,
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open(gc(xjoinpaths(gc(getcwd(0, 0)), "o//deleteme")),
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O_WRONLY | O_CREAT | O_TRUNC, 0644));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(open, fdWillBeInheritedByExecutedPrograms) {
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ASSERT_SYS(0, 3, open("x", O_RDWR | O_CREAT | O_TRUNC, 0666));
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ASSERT_SYS(0, 0, fcntl(3, F_GETFD));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(open, fdWillBeClosedByExecveAutomatically) {
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ASSERT_SYS(0, 3, open("x", O_RDWR | O_CREAT | O_TRUNC | O_CLOEXEC, 0666));
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ASSERT_SYS(0, FD_CLOEXEC, fcntl(3, F_GETFD));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(open, enametoolong) {
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size_t n = 260;
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char *s = gc(xcalloc(1, n + 1));
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memset(s, 'J', n);
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ASSERT_SYS(ENAMETOOLONG, -1, creat(s, 0644));
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}
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TEST(open, testSpaceInFilename) {
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char buf[8] = {0};
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ASSERT_SYS(0, 0, xbarf("hello txt", "hello", -1));
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ASSERT_SYS(0, 3, open("hello txt", O_WRONLY));
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EXPECT_SYS(0, 1, write(3, "H", 1));
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EXPECT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open("hello txt", O_RDONLY));
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EXPECT_SYS(0, 5, read(3, buf, 7));
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EXPECT_STREQ("Hello", buf);
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(open, testOpenExistingForWriteOnly_seeksToStart) {
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char buf[8] = {0};
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ASSERT_SYS(0, 0, xbarf("hello.txt", "hello", -1));
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ASSERT_SYS(0, 3, open("hello.txt", O_WRONLY));
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EXPECT_SYS(0, 1, write(3, "H", 1));
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EXPECT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open("hello.txt", O_RDONLY));
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EXPECT_SYS(0, 5, read(3, buf, 7));
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EXPECT_STREQ("Hello", buf);
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(open, testOpenExistingForReadWrite_seeksToStart) {
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char buf[8] = {0};
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ASSERT_SYS(0, 0, xbarf("hello.txt", "hello", -1));
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ASSERT_SYS(0, 3, open("hello.txt", O_RDWR));
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EXPECT_SYS(0, 1, write(3, "H", 1));
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EXPECT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open("hello.txt", O_RDONLY));
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EXPECT_SYS(0, 5, read(3, buf, 7));
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EXPECT_STREQ("Hello", buf);
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(open, testOpenExistingForAppendWriteOnly_seeksToEnd) {
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char buf[16] = {0};
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ASSERT_SYS(0, 0, xbarf("hello.txt", "hell", -1));
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ASSERT_SYS(0, 3, open("hello.txt", O_WRONLY | O_APPEND));
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EXPECT_SYS(EBADF, -1, pread(3, buf, 4, 0)); // in O_WRONLY mode
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EXPECT_SYS(0, 1, write(3, "o", 1));
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EXPECT_SYS(0, 0, lseek(3, 0, SEEK_SET));
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EXPECT_SYS(0, 1, write(3, "!", 1));
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EXPECT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open("hello.txt", O_RDONLY));
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EXPECT_SYS(0, 6, read(3, buf, 8));
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EXPECT_STREQ("hello!", buf);
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(open, appendRwMode_readsStartZero_writesAlwaysEof) {
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char buf[8] = {0};
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ASSERT_SYS(0, 0, xbarf("hello.txt", "hell", -1));
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ASSERT_SYS(0, 3, open("hello.txt", O_RDWR | O_APPEND));
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ASSERT_SYS(0, 2, read(3, buf, 2));
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ASSERT_SYS(0, 2, read(3, buf + 2, 2));
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EXPECT_STREQ("hell", buf);
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EXPECT_SYS(0, 2, write(3, "o!", 2));
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ASSERT_SYS(0, 6, pread(3, buf, 8, 0));
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EXPECT_STREQ("hello!", buf);
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(open, appendReadOnlyMode_appendIsIgnored) {
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char buf[8] = {0};
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ASSERT_SYS(0, 0, xbarf("hello.txt", "hell", -1));
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ASSERT_SYS(0, 3, open("hello.txt", O_RDONLY | O_APPEND));
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EXPECT_SYS(EBADF, -1, write(3, "o!", 2)); // due to O_RDONLY
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ASSERT_EQ(0, errno);
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ASSERT_SYS(0, 2, read(3, buf, 2));
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ASSERT_SYS(0, 2, read(3, buf + 2, 2));
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EXPECT_STREQ("hell", buf);
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ASSERT_SYS(0, 4, pread(3, buf, 4, 0));
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(open, truncReadWriteMode_getsTruncated) {
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char buf[8] = {0};
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ASSERT_FALSE(fileexists("hello.txt"));
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ASSERT_SYS(ENOENT, -1, open("hello.txt", O_RDWR | O_TRUNC));
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ASSERT_SYS(ENOENT, -1, open("hello.txt/there", O_RDWR | O_TRUNC));
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ASSERT_SYS(0, 0, xbarf("hello.txt", "hell", -1));
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ASSERT_SYS(ENOTDIR, -1, open("hello.txt/there", O_RDWR | O_TRUNC));
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ASSERT_SYS(0, 3, open("hello.txt", O_RDWR | O_TRUNC));
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ASSERT_SYS(0, 0, read(3, buf, 8));
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EXPECT_STREQ("", buf);
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ASSERT_SYS(0, 8, write(3, buf, 8));
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(open, truncReadOnlyMode_wontTruncate) {
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ASSERT_SYS(EINVAL, -1, open("hello.txt", O_RDONLY | O_TRUNC));
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}
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TEST(open, testRelativePath_opensRelativeToDirFd) {
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ASSERT_SYS(0, 0, mkdir("foo", 0755));
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ASSERT_SYS(0, 3, open("foo", O_RDONLY | O_DIRECTORY));
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EXPECT_SYS(0, 4, openat(3, "bar", O_WRONLY | O_TRUNC | O_CREAT, 0755));
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EXPECT_TRUE(fileexists("foo/bar"));
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EXPECT_SYS(0, 0, close(4));
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EXPECT_SYS(0, 0, close(3));
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}
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TEST(open, eloop) {
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ASSERT_SYS(0, 0, symlink("froot", "link"));
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ASSERT_TRUE(issymlink("link"));
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ASSERT_SYS(ELOOP, -1, open("link", O_RDONLY | O_NOFOLLOW));
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}
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TEST(open, norm) {
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ASSERT_SYS(0, 0, mkdir("fun", 0755));
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ASSERT_SYS(0, 0, mkdir("fun/house", 0755));
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ASSERT_SYS(0, 0, touch("fun/house/norm", 0644));
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ASSERT_SYS(0, 3, open("fun//house//norm", O_RDONLY));
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ASSERT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open(abs("fun//house//norm"), O_RDONLY));
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ASSERT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open("fun//house/./norm", O_RDONLY));
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ASSERT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open(abs("fun//house/./norm"), O_RDONLY));
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ASSERT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open("fun//house/../house/norm", O_RDONLY));
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ASSERT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open(abs("fun//house/../house/norm"), O_RDONLY));
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ASSERT_SYS(0, 0, close(3));
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ASSERT_SYS(ENOTDIR, -1, open("fun//house//norm/", O_RDONLY));
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ASSERT_SYS(ENOTDIR, -1, open("fun//house//norm/.", O_RDONLY));
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ASSERT_SYS(ENOTDIR, -1, open("fun//house//norm/./", O_RDONLY));
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ASSERT_SYS(0, 3, open("fun//house//", O_RDONLY | O_DIRECTORY));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(open, longNormDot) {
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if (IsWindows())
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return; // todo: why won't long paths work on windows
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#define NAME \
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"funfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfu" \
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"nfunfunfunfunfunfunnfunfunfunfunfunfunnfunfunfunfunfunfununfunfunfunfunfun"
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ASSERT_SYS(0, 0, mkdir(NAME, 0755));
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ASSERT_SYS(0, 0, mkdir(abs(NAME "/" NAME), 0755));
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ASSERT_SYS(0, 3, creat(abs(NAME "//" NAME "/./norm"), 0644));
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ASSERT_TRUE(fileexists(abs(NAME "//" NAME "/norm")));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(open, longNormDotDot) {
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if (IsWindows())
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return; // todo: why won't long paths work on windows
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#define NAME \
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"funfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfunfu" \
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"nfunfunfunfunfunfunnfunfunfunfunfunfunnfunfunfunfunfunfununfunfunfunfunfun"
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ASSERT_SYS(0, 0, mkdir(NAME, 0755));
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ASSERT_SYS(0, 0, mkdir(abs(NAME "/" NAME), 0755));
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ASSERT_SYS(0, 0, mkdir(abs(NAME "/" NAME "/" NAME), 0755));
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ASSERT_SYS(0, 3, creat(abs(NAME "//" NAME "//" NAME "/../norm"), 0644));
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ASSERT_TRUE(fileexists(abs(NAME "//" NAME "/norm")));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(open, creat_directory) {
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ASSERT_SYS(ENOENT, -1, open("fun", O_WRONLY | O_DIRECTORY));
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ASSERT_FALSE(fileexists("fun"));
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if (1)
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return; // linux 5.15.122-0-lts creates file and returns error D:
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ASSERT_SYS(ENOTDIR, -1, open("fun", O_CREAT | O_WRONLY | O_DIRECTORY, 0644));
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ASSERT_TRUE(fileexists("fun"));
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}
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TEST(open, O_DIRECTORY_preventsOpeningRegularFiles) {
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ASSERT_SYS(0, 0, touch("file", 0644));
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ASSERT_SYS(ENOTDIR, -1, open("file", O_WRONLY | O_DIRECTORY));
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}
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TEST(open, O_DIRECTORY_isNotARequirementToOpenDirectory) {
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ASSERT_SYS(0, 0, mkdir("dir", 0755));
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ASSERT_SYS(0, 3, open("dir", O_RDONLY));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(open, openExistingDirectoryForWriting_raisesError) {
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ASSERT_SYS(0, 0, mkdir("dir", 0755));
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ASSERT_SYS(EISDIR, -1, open("dir", O_WRONLY));
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}
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TEST(open, nameWithControlCode) {
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if (IsWindows()) {
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ASSERT_SYS(EINVAL, -1, touch("hi\1there", 0755));
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} else {
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ASSERT_SYS(0, 0, touch("hi\1there", 0755));
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}
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}
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TEST(open, nameWithOverlongNul_doesntCreateTruncatedName) {
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if (IsXnu() || IsWindows()) {
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// XNU is the only one that thought to restrict this. XNU chose
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// EILSEQ which makes the most sense. Linux says it'll raise EINVAL
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// if invalid characters are detected. Not sure yet which characters
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// those are. POSIX says nothing about invalid charaters in open.
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ASSERT_SYS(EILSEQ, -1, touch("hi\300\200there", 0755));
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} else {
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ASSERT_SYS(0, 0, touch("hi\300\200there", 0755));
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ASSERT_TRUE(fileexists("hi\300\200there"));
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ASSERT_FALSE(fileexists("hi"));
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}
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}
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int CountFds(void) {
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int i, count;
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for (count = i = 0; i < g_fds.n; ++i) {
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if (g_fds.p[i].kind) {
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++count;
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}
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}
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return count;
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}
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TEST(open, lotsOfFds) {
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if (!IsWindows())
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return;
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int i, n = 200;
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ASSERT_SYS(0, 0, xbarf("hello.txt", "hello", -1));
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for (i = 3; i < n; ++i) {
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EXPECT_EQ(i, CountFds());
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EXPECT_SYS(0, i, open("hello.txt", O_RDONLY));
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}
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for (i = 3; i < n; ++i) {
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EXPECT_SYS(0, 0, close(i));
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}
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}
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static int64_t GetInode(const char *path) {
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struct stat st;
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ASSERT_SYS(0, 0, stat(path, &st));
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return st.st_ino;
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}
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TEST(open, drive) {
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if (!IsWindows())
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return;
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ASSERT_NE(GetInode("/"), GetInode("."));
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ASSERT_EQ(GetInode("/"), GetInode("/c")); // sorry you have to run on c:/
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ASSERT_EQ(GetInode("/"), GetInode("/c/"));
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ASSERT_SYS(0, 3, open("/", O_RDONLY));
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ASSERT_SYS(0, 0, close(3));
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}
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TEST(open, readOnlyCreatMode) {
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char buf[8];
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struct stat st;
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ASSERT_SYS(0, 3, open("x", O_RDWR | O_CREAT | O_TRUNC, 0500));
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ASSERT_SYS(0, 2, pwrite(3, "MZ", 2, 0));
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ASSERT_SYS(0, 2, pread(3, buf, 8, 0));
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ASSERT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 0, stat("x", &st));
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ASSERT_EQ(0100500, st.st_mode);
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if (getuid()) {
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ASSERT_SYS(EACCES, -1, open("x", O_RDWR));
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ASSERT_SYS(EACCES, -1, open("x", O_RDWR | O_CREAT));
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} else {
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// root is invulnerable to eacces
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ASSERT_SYS(0, 3, open("x", O_RDWR));
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ASSERT_SYS(0, 0, close(3));
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ASSERT_SYS(0, 3, open("x", O_RDWR | O_CREAT));
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ASSERT_SYS(0, 0, close(3));
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SPAWN(fork);
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setuid(1000);
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setgid(1000);
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ASSERT_SYS(EACCES, -1, open("x", O_RDWR));
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ASSERT_SYS(EACCES, -1, open("x", O_RDWR | O_CREAT));
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EXITS(0);
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}
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}
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TEST(open, parentSymlink) {
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struct stat st;
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ASSERT_SYS(0, 0, mkdir("parent", 0755));
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// create directory symlink
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ASSERT_SYS(0, 0, symlink("parent", "parent-link"));
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// test the symlink we just made is a symlink
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ASSERT_SYS(0, 0, lstat("parent-link", &st));
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ASSERT_TRUE(S_ISLNK(st.st_mode));
|
|
// create regular file when parent component is symlink dir
|
|
ASSERT_SYS(0, 0, touch("parent-link/regular", 0644));
|
|
// test stat works
|
|
ASSERT_SYS(0, 0, stat("parent-link/regular", &st));
|
|
ASSERT_TRUE(S_ISREG(st.st_mode));
|
|
// test open works
|
|
ASSERT_SYS(0, 3, open("parent-link/regular", O_RDONLY));
|
|
ASSERT_SYS(0, 0, fstat(3, &st));
|
|
ASSERT_TRUE(S_ISREG(st.st_mode));
|
|
ASSERT_SYS(0, 0, close(3));
|
|
// test O_NOFOLLOW doesn't apply to parent components
|
|
ASSERT_SYS(0, 3, open("parent-link/regular", O_RDONLY | O_NOFOLLOW));
|
|
ASSERT_SYS(0, 0, fstat(3, &st));
|
|
ASSERT_TRUE(S_ISREG(st.st_mode));
|
|
ASSERT_SYS(0, 0, close(3));
|
|
// create regular symlink
|
|
ASSERT_SYS(0, 0, symlink("regular", "parent-link/regular-link"));
|
|
// test stat works
|
|
ASSERT_SYS(0, 0, stat("parent-link/regular-link", &st));
|
|
ASSERT_TRUE(S_ISREG(st.st_mode));
|
|
ASSERT_SYS(0, 0, lstat("parent-link/regular-link", &st));
|
|
ASSERT_TRUE(S_ISLNK(st.st_mode));
|
|
// test open works
|
|
ASSERT_SYS(0, 3, open("parent-link/regular-link", O_RDONLY));
|
|
ASSERT_SYS(0, 0, fstat(3, &st));
|
|
ASSERT_TRUE(S_ISREG(st.st_mode));
|
|
ASSERT_SYS(0, 0, close(3));
|
|
// test O_NOFOLLOW applies to last component
|
|
ASSERT_SYS(ELOOP, -1,
|
|
open("parent-link/regular-link", O_RDONLY | O_NOFOLLOW));
|
|
}
|
|
|
|
TEST(open, readonlyCreateMode_dontChangeStatusIfExists) {
|
|
char buf[8];
|
|
struct stat st;
|
|
ASSERT_SYS(0, 3, creat("wut", 0700));
|
|
ASSERT_SYS(0, 2, pwrite(3, "MZ", 2, 0));
|
|
ASSERT_SYS(0, 0, close(3));
|
|
// since the file already exists, unix doesn't change read-only
|
|
ASSERT_SYS(0, 3, open("wut", O_CREAT | O_TRUNC | O_RDWR, 0500));
|
|
ASSERT_SYS(0, 0, pread(3, buf, 8, 0));
|
|
ASSERT_SYS(0, 0, fstat(3, &st));
|
|
ASSERT_EQ(0100600, st.st_mode & 0700666);
|
|
ASSERT_SYS(0, 0, close(3));
|
|
}
|
|
|
|
TEST(open, creatRdonly) {
|
|
char buf[8];
|
|
ASSERT_SYS(EINVAL, -1, open("foo", O_CREAT | O_TRUNC | O_RDONLY, 0700));
|
|
ASSERT_SYS(0, 3, open("foo", O_CREAT | O_RDONLY, 0700));
|
|
ASSERT_SYS(EBADF, -1, pwrite(3, "MZ", 2, 0));
|
|
ASSERT_SYS(0, 0, pread(3, buf, 8, 0));
|
|
ASSERT_SYS(0, 0, close(3));
|
|
}
|
|
|
|
TEST(open, sequentialRandom_EINVAL) {
|
|
if (!IsWindows())
|
|
return;
|
|
ASSERT_SYS(
|
|
EINVAL, -1,
|
|
open("foo", O_CREAT | O_TRUNC | O_RDWR | O_SEQUENTIAL | O_RANDOM, 0700));
|
|
}
|
|
|
|
// "If O_CREAT is set and the file did not previously exist, upon
|
|
// successful completion, open() shall mark for update the last data
|
|
// access, last data modification, and last file status change
|
|
// timestamps of the file and the last data modification and last
|
|
// file status change timestamps of the parent directory." -POSIX
|
|
TEST(open, creatFile_touchesDirectory) {
|
|
if (1)
|
|
return; // TODO(jart): explain the rare flakes
|
|
struct stat st;
|
|
struct timespec birth;
|
|
ASSERT_SYS(0, 0, mkdir("dir", 0755));
|
|
ASSERT_SYS(0, 0, stat("dir", &st));
|
|
birth = st.st_ctim;
|
|
// check we can read time without changing it
|
|
sleep(2);
|
|
ASSERT_SYS(0, 0, stat("dir", &st));
|
|
EXPECT_EQ(0, timespec_cmp(st.st_ctim, birth));
|
|
EXPECT_EQ(0, timespec_cmp(st.st_mtim, birth));
|
|
EXPECT_EQ(0, timespec_cmp(st.st_atim, birth));
|
|
// check that the directory time changes when file is made
|
|
sleep(2);
|
|
ASSERT_SYS(0, 0, touch("dir/file", 0644));
|
|
ASSERT_SYS(0, 0, stat("dir", &st));
|
|
EXPECT_EQ(1, timespec_cmp(st.st_ctim, birth));
|
|
EXPECT_EQ(1, timespec_cmp(st.st_mtim, birth));
|
|
// TODO: Maybe statfs() for noatime / relative?
|
|
// EXPECT_EQ(1, timespec_cmp(st.st_atim, birth));
|
|
}
|
|
|
|
// "If O_TRUNC is set and the file did previously exist, upon successful
|
|
// completion, open() shall mark for update the last data modification
|
|
// and last file status change timestamps of the file." -POSIX
|
|
TEST(open, trunc_touchesMtimCtim) {
|
|
struct stat st;
|
|
struct timespec birth;
|
|
ASSERT_SYS(0, 0, touch("regular", 0755));
|
|
ASSERT_SYS(0, 0, stat("regular", &st));
|
|
birth = st.st_ctim;
|
|
sleep(2);
|
|
ASSERT_SYS(0, 3, open("regular", O_RDWR | O_TRUNC));
|
|
ASSERT_SYS(0, 0, fstat(3, &st));
|
|
EXPECT_EQ(1, timespec_cmp(st.st_ctim, birth));
|
|
EXPECT_EQ(1, timespec_cmp(st.st_mtim, birth));
|
|
ASSERT_SYS(0, 0, close(3));
|
|
}
|
|
|
|
TEST(open, mereOpen_doesntTouch) {
|
|
struct stat st;
|
|
struct timespec birth;
|
|
ASSERT_SYS(0, 0, touch("regular", 0755));
|
|
ASSERT_SYS(0, 0, stat("regular", &st));
|
|
birth = st.st_ctim;
|
|
sleep(2);
|
|
ASSERT_SYS(0, 3, open("regular", O_RDWR));
|
|
ASSERT_SYS(0, 0, close(3));
|
|
ASSERT_SYS(0, 0, stat("regular", &st));
|
|
EXPECT_EQ(0, timespec_cmp(st.st_ctim, birth));
|
|
EXPECT_EQ(0, timespec_cmp(st.st_mtim, birth));
|
|
EXPECT_EQ(0, timespec_cmp(st.st_atim, birth));
|
|
}
|
|
|
|
TEST(open, canTruncateExistingFile) {
|
|
struct stat st;
|
|
ASSERT_SYS(0, 0, xbarf("foo", "hello", -1));
|
|
ASSERT_SYS(0, 0, stat("foo", &st));
|
|
ASSERT_EQ(5, st.st_size);
|
|
ASSERT_SYS(0, 3, open("foo", O_RDWR | O_TRUNC));
|
|
ASSERT_SYS(0, 0, fstat(3, &st));
|
|
ASSERT_EQ(0, st.st_size);
|
|
ASSERT_SYS(0, 0, close(3));
|
|
ASSERT_SYS(0, 0, stat("foo", &st));
|
|
ASSERT_EQ(0, st.st_size);
|
|
}
|