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Fix: Error reported if no domain is provided for start/stop
[lttng-tools.git]
/
src
/
bin
/
lttng-sessiond
/
cmd.c
diff --git
a/src/bin/lttng-sessiond/cmd.c
b/src/bin/lttng-sessiond/cmd.c
index 7c58601531376d7a5879d21896685fc6e986433a..5511575ec20630156c313084d1e923c42b4a0d74 100644
(file)
--- a/
src/bin/lttng-sessiond/cmd.c
+++ b/
src/bin/lttng-sessiond/cmd.c
@@
-170,7
+170,10
@@
static void list_lttng_channels(int domain, struct ltt_session *session,
rcu_read_lock();
cds_lfht_for_each_entry(session->ust_session->domain_global.channels->ht,
&iter.iter, uchan, node.node) {
rcu_read_lock();
cds_lfht_for_each_entry(session->ust_session->domain_global.channels->ht,
&iter.iter, uchan, node.node) {
- strncpy(channels[i].name, uchan->name, LTTNG_SYMBOL_NAME_LEN);
+ if (lttng_strncpy(channels[i].name, uchan->name,
+ LTTNG_SYMBOL_NAME_LEN)) {
+ break;
+ }
channels[i].attr.overwrite = uchan->attr.overwrite;
channels[i].attr.subbuf_size = uchan->attr.subbuf_size;
channels[i].attr.num_subbuf = uchan->attr.num_subbuf;
channels[i].attr.overwrite = uchan->attr.overwrite;
channels[i].attr.subbuf_size = uchan->attr.subbuf_size;
channels[i].attr.num_subbuf = uchan->attr.num_subbuf;
@@
-2141,7
+2144,15
@@
int cmd_stop_trace(struct ltt_session *session)
if (ksession && ksession->active) {
DBG("Stop kernel tracing");
if (ksession && ksession->active) {
DBG("Stop kernel tracing");
- /* Flush metadata if exist */
+ ret = kernel_stop_session(ksession);
+ if (ret < 0) {
+ ret = LTTNG_ERR_KERN_STOP_FAIL;
+ goto error;
+ }
+
+ kernel_wait_quiescent(kernel_tracer_fd);
+
+ /* Flush metadata after stopping (if exists) */
if (ksession->metadata_stream_fd >= 0) {
ret = kernel_metadata_flush_buffer(ksession->metadata_stream_fd);
if (ret < 0) {
if (ksession->metadata_stream_fd >= 0) {
ret = kernel_metadata_flush_buffer(ksession->metadata_stream_fd);
if (ret < 0) {
@@
-2149,7
+2160,7
@@
int cmd_stop_trace(struct ltt_session *session)
}
}
}
}
- /* Flush all buffers
before
stopping */
+ /* Flush all buffers
after
stopping */
cds_list_for_each_entry(kchan, &ksession->channel_list.head, list) {
ret = kernel_flush_buffer(kchan);
if (ret < 0) {
cds_list_for_each_entry(kchan, &ksession->channel_list.head, list) {
ret = kernel_flush_buffer(kchan);
if (ret < 0) {
@@
-2157,14
+2168,6
@@
int cmd_stop_trace(struct ltt_session *session)
}
}
}
}
- ret = kernel_stop_session(ksession);
- if (ret < 0) {
- ret = LTTNG_ERR_KERN_STOP_FAIL;
- goto error;
- }
-
- kernel_wait_quiescent(kernel_tracer_fd);
-
ksession->active = 0;
}
ksession->active = 0;
}
@@
-3437,8
+3440,12
@@
int cmd_snapshot_record(struct ltt_session *session,
/* Use temporary name. */
if (*output->name != '\0') {
/* Use temporary name. */
if (*output->name != '\0') {
- strncpy(tmp_output.name, output->name,
- sizeof(tmp_output.name));
+ if (lttng_strncpy(tmp_output.name, output->name,
+ sizeof(tmp_output.name))) {
+ ret = LTTNG_ERR_INVALID;
+ rcu_read_unlock();
+ goto error;
+ }
}
tmp_output.nb_snapshot = session->snapshot.nb_snapshot;
}
tmp_output.nb_snapshot = session->snapshot.nb_snapshot;
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