X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Flib%2Flttng-ctl%2Flttng-ctl.c;h=1c51eedc7814ff4879a844303b280200ae2e6fe2;hb=bacc41cc41d9702241e7a52617fed046ed5f5506;hp=001abffcd925705fbcee43a613ed055e2cea50c7;hpb=f5d98ed9e6017de4d7146fd4a19dad4dab5471e3;p=lttng-tools.git

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index 001abffcd..1c51eedc7 100644
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -211,6 +211,8 @@ static int recv_data_sessiond(void *buf, size_t len)
 {
 	int ret;
 
+	assert(len > 0);
+
 	if (!connected) {
 		ret = -LTTNG_ERR_NO_SESSIOND;
 		goto end;
@@ -219,6 +221,8 @@ static int recv_data_sessiond(void *buf, size_t len)
 	ret = lttcomm_recv_unix_sock(sessiond_socket, buf, len);
 	if (ret < 0) {
 		ret = -LTTNG_ERR_FATAL;
+	} else if (ret == 0) {
+		ret = -LTTNG_ERR_NO_SESSIOND;
 	}
 
 end: