NTSTATUS delete_all_streams(connection_struct *conn, const char *fname)
{
struct stream_struct *stream_info = NULL;
int i;
unsigned int num_streams = 0;
TALLOC_CTX *frame = talloc_stackframe();
NTSTATUS status;
status = vfs_streaminfo(conn, NULL, fname, talloc_tos(),
&num_streams, &stream_info);
if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_IMPLEMENTED)) {
DEBUG(10, ("no streams around\n"));
TALLOC_FREE(frame);
return NT_STATUS_OK;
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("vfs_streaminfo failed: %s\n",
nt_errstr(status)));
goto fail;
}
DEBUG(10, ("delete_all_streams found %d streams\n",
num_streams));
if (num_streams == 0) {
TALLOC_FREE(frame);
return NT_STATUS_OK;
}
for (i=0; i<num_streams; i++) {
int res;
struct smb_filename *smb_fname_stream;
if (strequal(stream_info[i].name, "::$DATA")) {
continue;
}
smb_fname_stream = synthetic_smb_fname(
talloc_tos(), fname, stream_info[i].name, NULL);
if (smb_fname_stream == NULL) {
DEBUG(0, ("talloc_aprintf failed\n"));
status = NT_STATUS_NO_MEMORY;
goto fail;
}
res = SMB_VFS_UNLINK(conn, smb_fname_stream);
if (res == -1) {
status = map_nt_error_from_unix(errno);
DEBUG(10, ("Could not delete stream %s: %s\n",
smb_fname_str_dbg(smb_fname_stream),
strerror(errno)));
TALLOC_FREE(smb_fname_stream);
break;
}
TALLOC_FREE(smb_fname_stream);
}
fail:
TALLOC_FREE(frame);
return status;
}
static NTSTATUS build_stream_path(TALLOC_CTX *mem_ctx,
connection_struct *conn,
const char *orig_path,
struct smb_filename *smb_fname)
{
NTSTATUS status;
unsigned int i, num_streams = 0;
struct stream_struct *streams = NULL;
if (SMB_VFS_STAT(conn, smb_fname) == 0) {
DEBUG(10, ("'%s' exists\n", smb_fname_str_dbg(smb_fname)));
return NT_STATUS_OK;
}
if (errno != ENOENT) {
DEBUG(10, ("vfs_stat failed: %s\n", strerror(errno)));
status = map_nt_error_from_unix(errno);
goto fail;
}
/* Fall back to a case-insensitive scan of all streams on the file. */
status = vfs_streaminfo(conn, NULL, smb_fname->base_name, mem_ctx,
&num_streams, &streams);
if (NT_STATUS_EQUAL(status, NT_STATUS_OBJECT_NAME_NOT_FOUND)) {
SET_STAT_INVALID(smb_fname->st);
return NT_STATUS_OK;
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("vfs_streaminfo failed: %s\n", nt_errstr(status)));
goto fail;
}
for (i=0; i<num_streams; i++) {
DEBUG(10, ("comparing [%s] and [%s]: ",
smb_fname->stream_name, streams[i].name));
if (fname_equal(smb_fname->stream_name, streams[i].name,
conn->case_sensitive)) {
DEBUGADD(10, ("equal\n"));
break;
}
DEBUGADD(10, ("not equal\n"));
}
/* Couldn't find the stream. */
if (i == num_streams) {
SET_STAT_INVALID(smb_fname->st);
TALLOC_FREE(streams);
return NT_STATUS_OK;
}
DEBUG(10, ("case insensitive stream. requested: %s, actual: %s\n",
smb_fname->stream_name, streams[i].name));
TALLOC_FREE(smb_fname->stream_name);
smb_fname->stream_name = talloc_strdup(smb_fname, streams[i].name);
if (smb_fname->stream_name == NULL) {
status = NT_STATUS_NO_MEMORY;
goto fail;
}
SET_STAT_INVALID(smb_fname->st);
if (SMB_VFS_STAT(conn, smb_fname) == 0) {
DEBUG(10, ("'%s' exists\n", smb_fname_str_dbg(smb_fname)));
}
status = NT_STATUS_OK;
fail:
TALLOC_FREE(streams);
return status;
}
