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
13 #include <common/common.h>
14 #include <common/sessiond-comm/relayd.h>
16 #include <common/compat/endian.h>
17 #include <common/compat/string.h>
18 #include <lttng/constant.h>
25 * cmd_recv_stream_2_2 allocates path_name and channel_name.
27 int cmd_recv_stream_2_2(const struct lttng_buffer_view
*payload
,
28 char **ret_path_name
, char **ret_channel_name
,
29 uint64_t *tracefile_size
, uint64_t *tracefile_count
)
32 struct lttcomm_relayd_add_stream_2_2 stream_info
;
33 char *path_name
= NULL
;
34 char *channel_name
= NULL
;
37 if (payload
->size
< sizeof(stream_info
)) {
38 ERR("Unexpected payload size in \"cmd_recv_stream_2_2\": expected >= %zu bytes, got %zu bytes",
39 sizeof(stream_info
), payload
->size
);
43 memcpy(&stream_info
, payload
->data
, sizeof(stream_info
));
45 len
= lttng_strnlen(stream_info
.pathname
, sizeof(stream_info
.pathname
));
46 /* Ensure that NULL-terminated and fits in local filename length. */
47 if (len
== sizeof(stream_info
.pathname
) || len
>= LTTNG_NAME_MAX
) {
49 ERR("Path name too long");
52 path_name
= strdup(stream_info
.pathname
);
54 PERROR("Path name allocation");
58 len
= lttng_strnlen(stream_info
.channel_name
, sizeof(stream_info
.channel_name
));
59 if (len
== sizeof(stream_info
.channel_name
) || len
>= DEFAULT_STREAM_NAME_LEN
) {
61 ERR("Channel name too long");
64 channel_name
= strdup(stream_info
.channel_name
);
67 PERROR("Channel name allocation");
71 *tracefile_size
= be64toh(stream_info
.tracefile_size
);
72 *tracefile_count
= be64toh(stream_info
.tracefile_count
);
73 *ret_path_name
= path_name
;
74 *ret_channel_name
= channel_name
;