Fix: allow empty URL for live session creation

[lttng-tools.git] / src / lib / lttng-ctl / lttng-ctl.c

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index 3f6635e8f759c751d11f3d5402452ca9f7d37aeb..a11215d750124d61ba708f9f5ef543d4725d9af5 100644 (file)
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -520,6 +520,7 @@ int lttng_register_consumer(struct lttng_handle *handle,
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_REGISTER_CONSUMER;
        lttng_ctl_copy_string(lsm.session.name, handle->session_name,
                        sizeof(lsm.session.name));
@@ -542,6 +543,7 @@ int lttng_start_tracing(const char *session_name)
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_START_TRACE;
 
        lttng_ctl_copy_string(lsm.session.name, session_name,
@@ -562,6 +564,7 @@ static int _lttng_stop_tracing(const char *session_name, int wait)
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_STOP_TRACE;
 
        lttng_ctl_copy_string(lsm.session.name, session_name,
@@ -1004,6 +1007,7 @@ int lttng_list_tracepoints(struct lttng_handle *handle,
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_LIST_TRACEPOINTS;
        lttng_ctl_copy_lttng_domain(&lsm.domain, &handle->domain);
 
@@ -1031,6 +1035,7 @@ int lttng_list_tracepoint_fields(struct lttng_handle *handle,
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_LIST_TRACEPOINT_FIELDS;
        lttng_ctl_copy_lttng_domain(&lsm.domain, &handle->domain);
 
@@ -1099,6 +1104,7 @@ int lttng_destroy_session(const char *session_name)
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_DESTROY_SESSION;
 
        lttng_ctl_copy_string(lsm.session.name, session_name,
@@ -1118,6 +1124,7 @@ int lttng_list_sessions(struct lttng_session **sessions)
        int ret;
        struct lttcomm_session_msg lsm;
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_LIST_SESSIONS;
        ret = lttng_ctl_ask_sessiond(&lsm, (void**) sessions);
        if (ret < 0) {
@@ -1143,6 +1150,7 @@ int lttng_list_domains(const char *session_name,
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_LIST_DOMAINS;
 
        lttng_ctl_copy_string(lsm.session.name, session_name,
@@ -1172,6 +1180,7 @@ int lttng_list_channels(struct lttng_handle *handle,
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_LIST_CHANNELS;
        lttng_ctl_copy_string(lsm.session.name, handle->session_name,
                        sizeof(lsm.session.name));
@@ -1203,6 +1212,7 @@ int lttng_list_events(struct lttng_handle *handle,
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_LIST_EVENTS;
        lttng_ctl_copy_string(lsm.session.name, handle->session_name,
                        sizeof(lsm.session.name));
@@ -1250,6 +1260,7 @@ int lttng_calibrate(struct lttng_handle *handle,
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_CALIBRATE;
        lttng_ctl_copy_lttng_domain(&lsm.domain, &handle->domain);
 
@@ -1480,6 +1491,7 @@ int lttng_data_pending(const char *session_name)
                return -LTTNG_ERR_INVALID;
        }
 
+       memset(&lsm, 0, sizeof(lsm));
        lsm.cmd_type = LTTNG_DATA_PENDING;
 
        lttng_ctl_copy_string(lsm.session.name, session_name,
@@ -1557,16 +1569,20 @@ int lttng_create_session_live(const char *name, const char *url,
        lsm.cmd_type = LTTNG_CREATE_SESSION_LIVE;
        lttng_ctl_copy_string(lsm.session.name, name, sizeof(lsm.session.name));
 
-       size = uri_parse_str_urls(url, NULL, &uris);
-       if (size < 0) {
-               ret = -LTTNG_ERR_INVALID;
-               goto end;
-       }
+       if (url) {
+               size = uri_parse_str_urls(url, NULL, &uris);
+               if (size <= 0) {
+                       ret = -LTTNG_ERR_INVALID;
+                       goto end;
+               }
 
-       /* file:// is not accepted for live session. */
-       if (uris[0].dtype == LTTNG_DST_PATH) {
-               ret = -LTTNG_ERR_INVALID;
-               goto end;
+               /* file:// is not accepted for live session. */
+               if (uris[0].dtype == LTTNG_DST_PATH) {
+                       ret = -LTTNG_ERR_INVALID;
+                       goto end;
+               }
+       } else {
+               size = 0;
        }
 
        lsm.u.session_live.nb_uri = size;