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Simon McVittie authored
The temporary directory will be deleted on success, but will remain intact on failure. Signed-off-by:
Simon McVittie <smcv@collabora.com>
Simon McVittie authoredThe temporary directory will be deleted on success, but will remain intact on failure. Signed-off-by:
Simon McVittie <smcv@collabora.com>
test-libglnx-fdio.c 8.06 KiB
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2017 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "libglnx.h"
#include <glib.h>
#include <stdlib.h>
#include <gio/gio.h>
#include <err.h>
#include <string.h>
#include "libglnx-testlib.h"
static gboolean
renameat_test_setup (int *out_srcfd, int *out_destfd,
GError **error)
{
glnx_autofd int srcfd = -1;
glnx_autofd int destfd = -1;
(void) glnx_shutil_rm_rf_at (AT_FDCWD, "srcdir", NULL, NULL);
if (mkdir ("srcdir", 0755) < 0)
err (1, "mkdir");
if (!glnx_opendirat (AT_FDCWD, "srcdir", TRUE, &srcfd, error))
return FALSE;
(void) glnx_shutil_rm_rf_at (AT_FDCWD, "destdir", NULL, NULL);
if (mkdir ("destdir", 0755) < 0)
err (1, "mkdir");
if (!glnx_opendirat (AT_FDCWD, "destdir", TRUE, &destfd, error))
return FALSE;
if (!glnx_file_replace_contents_at (srcfd, "foo", (guint8*)"foo contents", strlen ("foo contents"),
GLNX_FILE_REPLACE_NODATASYNC, NULL, error))
return FALSE;
if (!glnx_file_replace_contents_at (destfd, "bar", (guint8*)"bar contents", strlen ("bar contents"),
GLNX_FILE_REPLACE_NODATASYNC, NULL, error))
return FALSE;
*out_srcfd = srcfd; srcfd = -1;
*out_destfd = destfd; destfd = -1;
return TRUE;
}
static void
test_renameat2_noreplace (void)
{
_GLNX_TEST_DECLARE_ERROR(local_error, error);
glnx_autofd int srcfd = -1;
glnx_autofd int destfd = -1;
struct stat stbuf;
if (!renameat_test_setup (&srcfd, &destfd, error))
return;
if (glnx_renameat2_noreplace (srcfd, "foo", destfd, "bar") == 0)
g_assert_not_reached ();
else
{
g_assert_cmpint (errno, ==, EEXIST);
}
if (glnx_renameat2_noreplace (srcfd, "foo", destfd, "baz") < 0)
return (void)glnx_throw_errno_prefix (error, "renameat");
if (!glnx_fstatat (destfd, "bar", &stbuf, AT_SYMLINK_NOFOLLOW, error))
return;
if (fstatat (srcfd, "foo", &stbuf, AT_SYMLINK_NOFOLLOW) == 0)
g_assert_not_reached ();
else
g_assert_cmpint (errno, ==, ENOENT);
}
static void
test_renameat2_exchange (void)
{
_GLNX_TEST_DECLARE_ERROR(local_error, error);
glnx_autofd int srcfd = -1;
glnx_autofd int destfd = -1;
if (!renameat_test_setup (&srcfd, &destfd, error))
return;
if (glnx_renameat2_exchange (AT_FDCWD, "srcdir", AT_FDCWD, "destdir") < 0)
return (void)glnx_throw_errno_prefix (error, "renameat");
/* Ensure the dir fds are the same */
struct stat stbuf;
if (!glnx_fstatat (srcfd, "foo", &stbuf, AT_SYMLINK_NOFOLLOW, error))
return;
if (!glnx_fstatat (destfd, "bar", &stbuf, AT_SYMLINK_NOFOLLOW, error))
return;
/* But the dirs should be swapped */
if (!glnx_fstatat (AT_FDCWD, "destdir/foo", &stbuf, AT_SYMLINK_NOFOLLOW, error))
return;
if (!glnx_fstatat (AT_FDCWD, "srcdir/bar", &stbuf, AT_SYMLINK_NOFOLLOW, error))
return;
}
static void
test_tmpfile (void)
{
_GLNX_TEST_DECLARE_ERROR(local_error, error);
g_auto(GLnxTmpfile) tmpf = { 0, };
if (!glnx_open_tmpfile_linkable_at (AT_FDCWD, ".", O_WRONLY|O_CLOEXEC, &tmpf, error))
return;
if (glnx_loop_write (tmpf.fd, "foo", strlen ("foo")) < 0)
return (void)glnx_throw_errno_prefix (error, "write");
if (glnx_link_tmpfile_at (&tmpf, GLNX_LINK_TMPFILE_NOREPLACE, AT_FDCWD, "foo", error))
return;
}
static void
test_stdio_file (void)
{
_GLNX_TEST_DECLARE_ERROR(local_error, error);
g_auto(GLnxTmpfile) tmpf = { 0, };
g_autoptr(FILE) f = NULL;
if (!glnx_open_anonymous_tmpfile (O_RDWR|O_CLOEXEC, &tmpf, error))
return;
f = fdopen (tmpf.fd, "w");
tmpf.fd = -1; /* Ownership was transferred via fdopen() */
if (!f)
return (void)glnx_throw_errno_prefix (error, "fdopen");
if (fwrite ("hello", 1, strlen ("hello"), f) != strlen ("hello"))
return (void)glnx_throw_errno_prefix (error, "fwrite");
if (!glnx_stdio_file_flush (f, error))
return;
}
static void
test_fstatat (void)
{
_GLNX_TEST_DECLARE_ERROR(local_error, error);
struct stat stbuf = { 0, };
if (!glnx_fstatat_allow_noent (AT_FDCWD, ".", &stbuf, 0, error))
return;
g_assert_cmpint (errno, ==, 0);
g_assert_no_error (local_error);
g_assert (S_ISDIR (stbuf.st_mode));
if (!glnx_fstatat_allow_noent (AT_FDCWD, "nosuchfile", &stbuf, 0, error))
return;
g_assert_cmpint (errno, ==, ENOENT);
g_assert_no_error (local_error);
/* test NULL parameter for stat */
if (!glnx_fstatat_allow_noent (AT_FDCWD, ".", NULL, 0, error))
return;
g_assert_cmpint (errno, ==, 0);
g_assert_no_error (local_error);
if (!glnx_fstatat_allow_noent (AT_FDCWD, "nosuchfile", NULL, 0, error))
return;
g_assert_cmpint (errno, ==, ENOENT);
g_assert_no_error (local_error);
}
static void
test_filecopy (void)
{
_GLNX_TEST_DECLARE_ERROR(local_error, error);
const char foo[] = "foo";
struct stat stbuf;
if (!glnx_ensure_dir (AT_FDCWD, "subdir", 0755, error))
return;
if (!glnx_file_replace_contents_at (AT_FDCWD, foo, (guint8*)foo, sizeof (foo),
GLNX_FILE_REPLACE_NODATASYNC, NULL, error))
return;
/* Copy it into both the same dir and a subdir */
if (!glnx_file_copy_at (AT_FDCWD, foo, NULL, AT_FDCWD, "bar",
GLNX_FILE_COPY_NOXATTRS, NULL, error))
return;
if (!glnx_file_copy_at (AT_FDCWD, foo, NULL, AT_FDCWD, "subdir/bar",
GLNX_FILE_COPY_NOXATTRS, NULL, error))
return;
if (!glnx_fstatat (AT_FDCWD, "subdir/bar", &stbuf, 0, error))
return;
if (glnx_file_copy_at (AT_FDCWD, foo, NULL, AT_FDCWD, "bar",
GLNX_FILE_COPY_NOXATTRS, NULL, error))
g_assert_not_reached ();
g_assert_error (local_error, G_IO_ERROR, G_IO_ERROR_EXISTS);
g_clear_error (&local_error);
if (!glnx_file_copy_at (AT_FDCWD, foo, NULL, AT_FDCWD, "bar",
GLNX_FILE_COPY_NOXATTRS | GLNX_FILE_COPY_OVERWRITE,
NULL, error))
return;
if (symlinkat ("nosuchtarget", AT_FDCWD, "link") < 0)
return (void) glnx_throw_errno_prefix (error, "symlinkat");
/* Shouldn't be able to overwrite a symlink without GLNX_FILE_COPY_OVERWRITE */
if (glnx_file_copy_at (AT_FDCWD, foo, NULL, AT_FDCWD, "link",
GLNX_FILE_COPY_NOXATTRS,
NULL, error))
g_assert_not_reached ();
g_assert_error (local_error, G_IO_ERROR, G_IO_ERROR_EXISTS);
g_clear_error (&local_error);
/* Test overwriting symlink */
if (!glnx_file_copy_at (AT_FDCWD, foo, NULL, AT_FDCWD, "link",
GLNX_FILE_COPY_NOXATTRS | GLNX_FILE_COPY_OVERWRITE,
NULL, error))
return;
if (!glnx_fstatat_allow_noent (AT_FDCWD, "nosuchtarget", &stbuf, AT_SYMLINK_NOFOLLOW, error))
return;
g_assert_cmpint (errno, ==, ENOENT);
g_assert_no_error (local_error);
if (!glnx_fstatat (AT_FDCWD, "link", &stbuf, AT_SYMLINK_NOFOLLOW, error))
return;
g_assert (S_ISREG (stbuf.st_mode));
}
int main (int argc, char **argv)
{
_GLNX_TEST_SCOPED_TEMP_DIR;
int ret;
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/tmpfile", test_tmpfile);
g_test_add_func ("/stdio-file", test_stdio_file);
g_test_add_func ("/filecopy", test_filecopy);
g_test_add_func ("/renameat2-noreplace", test_renameat2_noreplace);
g_test_add_func ("/renameat2-exchange", test_renameat2_exchange);
g_test_add_func ("/fstat", test_fstatat);
ret = g_test_run();
return ret;
}