X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Fcmd-2-4.c;h=02edb7713e54245b2c55beb6ec6ffb94ed4499e6;hp=b269bc68a2e84473e9061afcc32697105e41a81e;hb=640b9481e1805d314256361ed49d55dcc35d6172;hpb=246777db6078ff9dd8046d5701fc12cb34547402

diff --git a/src/bin/lttng-relayd/cmd-2-4.c b/src/bin/lttng-relayd/cmd-2-4.c
index b269bc68a..02edb7713 100644
--- a/src/bin/lttng-relayd/cmd-2-4.c
+++ b/src/bin/lttng-relayd/cmd-2-4.c
@@ -1,20 +1,10 @@
 /*
- * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com>
- *                      David Goulet <dgoulet@efficios.com>
- *               2015 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * 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>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License, version 2 only, as
- * published by the Free Software Foundation.
+ * SPDX-License-Identifier: GPL-2.0-only
  *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 51
- * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #define _LGPL_SOURCE
@@ -27,10 +17,10 @@
 #include <common/compat/string.h>
 #include <lttng/constant.h>
 
-#include "cmd-generic.h"
+#include "cmd-2-4.h"
 #include "lttng-relayd.h"
 
-int cmd_create_session_2_4(struct relay_connection *conn,
+int cmd_create_session_2_4(const struct lttng_buffer_view *payload,
 		char *session_name, char *hostname,
 		uint32_t *live_timer, bool *snapshot)
 {
@@ -38,20 +28,26 @@ int cmd_create_session_2_4(struct relay_connection *conn,
 	struct lttcomm_relayd_create_session_2_4 session_info;
 	size_t len;
 
-	ret = cmd_recv(conn->sock, &session_info, sizeof(session_info));
-	if (ret < 0) {
-		ERR("Unable to recv session info version 2.4");
+	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,
-			sizeof(session_info.session_name));
+	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) {
@@ -59,8 +55,8 @@ int cmd_create_session_2_4(struct relay_connection *conn,
 		ERR("Session name too long");
 		goto error;
 	}
-	strncpy(hostname, session_info.hostname,
-			sizeof(session_info.hostname));
+	strncpy(hostname, session_info.hostname, LTTNG_HOST_NAME_MAX);
+
 	*live_timer = be32toh(session_info.live_timer);
 	*snapshot = be32toh(session_info.snapshot);