X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Fcmd-2-4.c;h=e20a838da932051572ebd2db984bf3b9eddaa408;hp=6d927a05341a2ed503ec473cd75c4a463828c9eb;hb=da4f23eeb6dd852ec59bcc679312669876616281;hpb=f263b7fd113e51d0737554e8232b8669e142a260

diff --git a/src/bin/lttng-relayd/cmd-2-4.c b/src/bin/lttng-relayd/cmd-2-4.c
index 6d927a053..e20a838da 100644
--- a/src/bin/lttng-relayd/cmd-2-4.c
+++ b/src/bin/lttng-relayd/cmd-2-4.c
@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2013 - Julien Desfossez <jdesfossez@efficios.com>
  *                      David Goulet <dgoulet@efficios.com>
+ *               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
@@ -16,39 +17,54 @@
  * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#define _GNU_SOURCE
+#define _LGPL_SOURCE
 #include <assert.h>
-#include <string.h>
 
 #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-generic.h"
+#include "cmd-2-4.h"
 #include "lttng-relayd.h"
 
-int cmd_create_session_2_4(struct relay_connection *conn,
-		struct relay_session *session)
+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;
 
-	assert(conn);
-	assert(session);
+	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;
+	}
+	strncpy(session_name, session_info.session_name, LTTNG_NAME_MAX);
 
-	ret = cmd_recv(conn->sock, &session_info, sizeof(session_info));
-	if (ret < 0) {
-		ERR("Unable to recv session info version 2.4");
+	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);
 
-	strncpy(session->session_name, session_info.session_name,
-			sizeof(session->session_name));
-	strncpy(session->hostname, session_info.hostname,
-			sizeof(session->hostname));
-	session->live_timer = be32toh(session_info.live_timer);
-	session->snapshot = be32toh(session_info.snapshot);
+	*live_timer = be32toh(session_info.live_timer);
+	*snapshot = be32toh(session_info.snapshot);
 
 	ret = 0;