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s3:streams_depot: add support for stream renames

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metze
This commit is contained in:
Stefan Metzmacher 2008-12-01 14:10:04 -08:00 committed by Jeremy Allison
parent ce310f666d
commit 549c2cb7a8
1 changed files with 74 additions and 0 deletions
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74
source3/modules/vfs_streams_depot.c
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@ -498,6 +498,78 @@ static int streams_depot_unlink(vfs_handle_struct *handle, const char *fname)
return SMB_VFS_NEXT_UNLINK(handle, fname);
}
static int streams_depot_rename(vfs_handle_struct *handle,
const char *oldname,
const char *newname)
{
TALLOC_CTX *frame = NULL;
int ret = -1;
bool old_is_stream;
bool new_is_stream;
char *obase = NULL;
char *osname = NULL;
char *nbase = NULL;
char *nsname = NULL;
char *ostream_fname = NULL;
char *nstream_fname = NULL;
DEBUG(10, ("streams_depot_rename called for %s => %s\n",
oldname, newname));
old_is_stream = is_ntfs_stream_name(oldname);
new_is_stream = is_ntfs_stream_name(newname);
if (!old_is_stream && !new_is_stream) {
return SMB_VFS_NEXT_RENAME(handle, oldname, newname);
}
if (!(old_is_stream && new_is_stream)) {
errno = ENOSYS;
return -1;
}
frame = talloc_stackframe();
if (!NT_STATUS_IS_OK(split_ntfs_stream_name(talloc_tos(), oldname,
&obase, &osname))) {
errno = ENOMEM;
goto done;
}
if (!NT_STATUS_IS_OK(split_ntfs_stream_name(talloc_tos(), oldname,
&nbase, &nsname))) {
errno = ENOMEM;
goto done;
}
/* for now don't allow renames from or to the default stream */
if (!osname || !nsname) {
errno = ENOSYS;
goto done;
}
if (StrCaseCmp(obase, nbase) != 0) {
errno = ENOSYS;
goto done;
}
ostream_fname = stream_name(handle, oldname, false);
if (ostream_fname == NULL) {
return -1;
}
nstream_fname = stream_name(handle, newname, false);
if (nstream_fname == NULL) {
return -1;
}
ret = SMB_VFS_NEXT_RENAME(handle, ostream_fname, nstream_fname);
done:
TALLOC_FREE(frame);
return ret;
}
static bool add_one_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
struct stream_struct **streams,
const char *name, SMB_OFF_T size,
@ -648,6 +720,8 @@ static vfs_op_tuple streams_depot_ops[] = {
SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(streams_depot_unlink), SMB_VFS_OP_UNLINK,
SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(streams_depot_rename), SMB_VFS_OP_RENAME,
SMB_VFS_LAYER_TRANSPARENT},
{SMB_VFS_OP(streams_depot_streaminfo), SMB_VFS_OP_STREAMINFO,
SMB_VFS_LAYER_OPAQUE},
{SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP}