2 * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com>
3 * David Goulet <dgoulet@efficios.com>
4 * 2015 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License, version 2 only, as
8 * published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along with
16 * this program; if not, write to the Free Software Foundation, Inc., 51
17 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
23 #include <common/common.h>
24 #include <common/sessiond-comm/relayd.h>
26 #include <common/compat/endian.h>
27 #include <common/compat/string.h>
28 #include <lttng/constant.h>
34 * cmd_recv_stream_2_2 allocates path_name and channel_name.
36 int cmd_recv_stream_2_2(const struct lttng_buffer_view
*payload
,
37 char **ret_path_name
, char **ret_channel_name
,
38 uint64_t *tracefile_size
, uint64_t *tracefile_count
)
41 struct lttcomm_relayd_add_stream_2_2 stream_info
;
42 char *path_name
= NULL
;
43 char *channel_name
= NULL
;
46 if (payload
->size
< sizeof(stream_info
)) {
47 ERR("Unexpected payload size in \"cmd_recv_stream_2_2\": expected >= %zu bytes, got %zu bytes",
48 sizeof(stream_info
), payload
->size
);
52 memcpy(&stream_info
, payload
->data
, sizeof(stream_info
));
54 len
= lttng_strnlen(stream_info
.pathname
, sizeof(stream_info
.pathname
));
55 /* Ensure that NULL-terminated and fits in local filename length. */
56 if (len
== sizeof(stream_info
.pathname
) || len
>= LTTNG_NAME_MAX
) {
58 ERR("Path name too long");
61 path_name
= strdup(stream_info
.pathname
);
63 PERROR("Path name allocation");
67 len
= lttng_strnlen(stream_info
.channel_name
, sizeof(stream_info
.channel_name
));
68 if (len
== sizeof(stream_info
.channel_name
) || len
>= DEFAULT_STREAM_NAME_LEN
) {
70 ERR("Channel name too long");
73 channel_name
= strdup(stream_info
.channel_name
);
76 PERROR("Channel name allocation");
80 *tracefile_size
= be64toh(stream_info
.tracefile_size
);
81 *tracefile_count
= be64toh(stream_info
.tracefile_count
);
82 *ret_path_name
= path_name
;
83 *ret_channel_name
= channel_name
;