bin: compile lttng-relayd as a C++

[lttng-tools.git] / src / bin / lttng-relayd / cmd-2-4.cpp

diff --git a/src/bin/lttng-relayd/cmd-2-4.cpp b/src/bin/lttng-relayd/cmd-2-4.cpp
new file mode 100644 (file)
index 0000000..7abc371
--- /dev/null
+++ b/src/bin/lttng-relayd/cmd-2-4.cpp
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2013 Julien Desfossez <jdesfossez@efficios.com>
+ * Copyright (C) 2013 David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2015 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ */
+
+#define _LGPL_SOURCE
+
+#include <common/common.h>
+#include <common/sessiond-comm/relayd.h>
+
+#include <common/compat/endian.h>
+#include <common/compat/string.h>
+#include <lttng/constant.h>
+
+#include "cmd-2-4.h"
+#include "lttng-relayd.h"
+
+int cmd_create_session_2_4(const struct lttng_buffer_view *payload,
+               char *session_name, char *hostname,
+               uint32_t *live_timer, bool *snapshot)
+{
+       int ret;
+       struct lttcomm_relayd_create_session_2_4 session_info;
+       size_t len;
+
+       if (payload->size < sizeof(session_info)) {
+               ERR("Unexpected payload size in \"cmd_create_session_2_4\": expected >= %zu bytes, got %zu bytes",
+                               sizeof(session_info), payload->size);
+               ret = -1;
+               goto error;
+       }
+       memcpy(&session_info, payload->data, sizeof(session_info));
+
+       len = lttng_strnlen(session_info.session_name, sizeof(session_info.session_name));
+       /* Ensure that NULL-terminated and fits in local filename length. */
+       if (len == sizeof(session_info.session_name) || len >= LTTNG_NAME_MAX) {
+               ret = -ENAMETOOLONG;
+               ERR("Session name too long");
+               goto error;
+       } else if (len == 0) {
+               ret = -EINVAL;
+               ERR("Session name can't be of length 0");
+               goto error;
+       }
+       strncpy(session_name, session_info.session_name, LTTNG_NAME_MAX);
+
+       len = lttng_strnlen(session_info.hostname, sizeof(session_info.hostname));
+       if (len == sizeof(session_info.hostname) || len >= LTTNG_HOST_NAME_MAX) {
+               ret = -ENAMETOOLONG;
+               ERR("Session name too long");
+               goto error;
+       }
+       strncpy(hostname, session_info.hostname, LTTNG_HOST_NAME_MAX);
+
+       *live_timer = be32toh(session_info.live_timer);
+       *snapshot = be32toh(session_info.snapshot);
+
+       ret = 0;
+
+error:
+       return ret;
+}