mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
73f8e854f6
Apparently the XFS attr_list_by_handle ioctl has never actually copied the cursor contents back to user space, which means that iteration has never worked. Add a test case for this and see "xfs: in _attrlist_by_handle, copy the cursor back to userspace". Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
119 lines
2.8 KiB
C
119 lines
2.8 KiB
C
/*
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* Copyright (C) 2016 Oracle. All Rights Reserved.
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*
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* Author: Darrick J. Wong <darrick.wong@oracle.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <attr/attributes.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdio.h>
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#include <asm/types.h>
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#include <xfs/xfs.h>
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#include <xfs/handle.h>
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#define ATTRBUFSZ 1024
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#define BSTATBUF_NR 32
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/* Read all the extended attributes of a file handle. */
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void
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read_handle_xattrs(
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struct xfs_handle *handle)
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{
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struct attrlist_cursor cur;
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char attrbuf[ATTRBUFSZ];
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char *firstname = NULL;
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struct attrlist *attrlist = (struct attrlist *)attrbuf;
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struct attrlist_ent *ent;
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int i;
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int flags = 0;
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int error;
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memset(&cur, 0, sizeof(cur));
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while ((error = attr_list_by_handle(handle, sizeof(*handle),
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attrbuf, ATTRBUFSZ, flags,
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&cur)) == 0) {
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for (i = 0; i < attrlist->al_count; i++) {
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ent = ATTR_ENTRY(attrlist, i);
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if (i != 0)
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continue;
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if (firstname == NULL) {
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firstname = malloc(ent->a_valuelen);
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memcpy(firstname, ent->a_name, ent->a_valuelen);
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} else {
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if (memcmp(firstname, ent->a_name,
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ent->a_valuelen) == 0)
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fprintf(stderr,
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"Saw duplicate xattr \"%s\", buggy XFS?\n",
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ent->a_name);
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else
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fprintf(stderr,
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"Test passes.\n");
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goto out;
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}
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}
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if (!attrlist->al_more)
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break;
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}
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out:
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if (firstname)
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free(firstname);
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if (error)
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perror("attr_list_by_handle");
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return;
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}
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int main(
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int argc,
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char *argv[])
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{
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struct xfs_handle *fshandle;
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size_t fshandle_len;
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struct xfs_handle *handle;
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size_t handle_len;
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int error;
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if (argc != 2) {
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fprintf(stderr, "Usage: %s filename\n", argv[0]);
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return 1;
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}
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error = path_to_fshandle(argv[1], (void **)&fshandle, &fshandle_len);
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if (error) {
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perror("getting fshandle");
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return 2;
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}
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error = path_to_handle(argv[1], (void **)&handle, &handle_len);
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if (error) {
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perror("getting handle");
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return 3;
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}
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read_handle_xattrs(handle);
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free_handle(handle, handle_len);
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free_handle(fshandle, fshandle_len);
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return 0;
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}
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