2 * Copyright (C) 2013 Julien Desfossez <jdesfossez@efficios.com>
3 * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
4 * Copyright (C) 2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 * SPDX-License-Identifier: GPL-2.0-only
12 #include "cmd-2-1.hpp"
15 #include <common/common.hpp>
16 #include <common/compat/string.hpp>
17 #include <common/sessiond-comm/relayd.hpp>
19 #include <lttng/constant.h>
22 * cmd_recv_stream_2_1 allocates path_name and channel_name.
24 int cmd_recv_stream_2_1(const struct lttng_buffer_view
*payload
,
26 char **ret_channel_name
)
29 struct lttcomm_relayd_add_stream stream_info
;
30 char *path_name
= nullptr;
31 char *channel_name
= nullptr;
34 if (payload
->size
< sizeof(stream_info
)) {
35 ERR("Unexpected payload size in \"cmd_recv_stream_2_1\": expected >= %zu bytes, got %zu bytes",
41 memcpy(&stream_info
, payload
->data
, sizeof(stream_info
));
43 len
= lttng_strnlen(stream_info
.pathname
, sizeof(stream_info
.pathname
));
44 /* Ensure that NULL-terminated and fits in local filename length. */
45 if (len
== sizeof(stream_info
.pathname
) || len
>= LTTNG_NAME_MAX
) {
47 ERR("Path name too long");
50 path_name
= strdup(stream_info
.pathname
);
52 PERROR("Path name allocation");
56 len
= lttng_strnlen(stream_info
.channel_name
, sizeof(stream_info
.channel_name
));
57 if (len
== sizeof(stream_info
.channel_name
) || len
>= DEFAULT_STREAM_NAME_LEN
) {
59 ERR("Channel name too long");
62 channel_name
= strdup(stream_info
.channel_name
);
65 PERROR("Channel name allocation");
69 *ret_path_name
= path_name
;
70 *ret_channel_name
= channel_name
;