mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-25 06:20:06 +00:00
6f3f6c506c
This is the same bug as bug 12165, but for readdir_r. The regression test covers both bug 12165 and bug 32126. Reviewed-by: DJ Delorie <dj@redhat.com>
135 lines
4.0 KiB
C
135 lines
4.0 KiB
C
/* Test that readdir does not skip entries with d_ino == 0 (bug 12165).
|
|
Copyright (C) 2024 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C 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 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C 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 the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdlib.h>
|
|
#include <support/check.h>
|
|
#include <support/fuse.h>
|
|
#include <support/readdir.h>
|
|
#include <support/xdirent.h>
|
|
|
|
/* Add the directory entry at OFFSET to the stream D. */
|
|
static uint64_t
|
|
add_directory_entry (struct support_fuse_dirstream *d, uint64_t offset)
|
|
{
|
|
bool added = false;
|
|
++offset;
|
|
switch (offset - 1)
|
|
{
|
|
case 0:
|
|
added = support_fuse_dirstream_add (d, 1, offset, DT_DIR, ".");
|
|
break;
|
|
case 1:
|
|
added = support_fuse_dirstream_add (d, 1, offset, DT_DIR, "..");
|
|
break;
|
|
case 2:
|
|
added = support_fuse_dirstream_add (d, 2, offset, DT_REG, "before");
|
|
break;
|
|
case 3:
|
|
added = support_fuse_dirstream_add (d, 0, offset, DT_REG, "zero");
|
|
break;
|
|
case 4:
|
|
added = support_fuse_dirstream_add (d, 3, offset, DT_REG, "after");
|
|
break;
|
|
}
|
|
if (added)
|
|
return offset;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/* Set to true if getdents64 should produce only one entry. */
|
|
static bool one_entry_per_getdents64;
|
|
|
|
static void
|
|
fuse_thread (struct support_fuse *f, void *closure)
|
|
{
|
|
struct fuse_in_header *inh;
|
|
while ((inh = support_fuse_next (f)) != NULL)
|
|
{
|
|
if (support_fuse_handle_mountpoint (f)
|
|
|| (inh->nodeid == 1 && support_fuse_handle_directory (f)))
|
|
continue;
|
|
switch (inh->opcode)
|
|
{
|
|
case FUSE_READDIR:
|
|
if (inh->nodeid == 1)
|
|
{
|
|
uint64_t offset = support_fuse_cast (READ, inh)->offset;
|
|
struct support_fuse_dirstream *d
|
|
= support_fuse_prepare_readdir (f);
|
|
while (true)
|
|
{
|
|
offset = add_directory_entry (d, offset);
|
|
if (offset == 0 || one_entry_per_getdents64)
|
|
break;
|
|
}
|
|
support_fuse_reply_prepared (f);
|
|
}
|
|
else
|
|
support_fuse_reply_error (f, EIO);
|
|
break;
|
|
default:
|
|
FAIL ("unexpected event %s", support_fuse_opcode (inh->opcode));
|
|
support_fuse_reply_error (f, EIO);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
support_fuse_init ();
|
|
|
|
for (enum support_readdir_op op = 0; op <= support_readdir_op_last (); ++op)
|
|
{
|
|
struct support_fuse *f = support_fuse_mount (fuse_thread, NULL);
|
|
DIR *dir = xopendir (support_fuse_mountpoint (f));
|
|
struct support_dirent e = { 0, };
|
|
|
|
TEST_VERIFY (support_readdir (dir, op, &e));
|
|
TEST_COMPARE_STRING (e.d_name, ".");
|
|
TEST_COMPARE (e.d_ino, 1);
|
|
|
|
TEST_VERIFY (support_readdir (dir, op, &e));
|
|
TEST_COMPARE_STRING (e.d_name, "..");
|
|
TEST_COMPARE (e.d_ino, 1);
|
|
|
|
TEST_VERIFY (support_readdir (dir, op, &e));
|
|
TEST_COMPARE_STRING (e.d_name, "before");
|
|
TEST_COMPARE (e.d_ino, 2);
|
|
|
|
TEST_VERIFY (support_readdir (dir, op, &e));
|
|
TEST_COMPARE_STRING (e.d_name, "zero");
|
|
TEST_COMPARE (e.d_ino, 0);
|
|
|
|
TEST_VERIFY (support_readdir (dir, op, &e));
|
|
TEST_COMPARE_STRING (e.d_name, "after");
|
|
TEST_COMPARE (e.d_ino, 3);
|
|
|
|
TEST_VERIFY (!support_readdir (dir, op, &e));
|
|
|
|
free (e.d_name);
|
|
xclosedir (dir);
|
|
support_fuse_unmount (f);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|