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Simplify rcu locking in viewer_list_sessions
[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 1327e42e4ddfa8efdd5a550179000a8f77f34150..21422a57deb7c674295f37545ccfba35d1ed2f64 100644
(file)
--- a/
src/bin/lttng-sessiond/cmd.c
+++ b/
src/bin/lttng-sessiond/cmd.c
@@
-277,7
+277,10
@@
static void list_lttng_channels(enum lttng_domain_type domain,
&iter.iter, uchan, node.node) {
uint64_t discarded_events = 0, lost_packets = 0;
&iter.iter, uchan, node.node) {
uint64_t discarded_events = 0, lost_packets = 0;
- 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;
@@
-3356,10
+3359,18
@@
ssize_t cmd_snapshot_list_outputs(struct ltt_session *session,
assert(output->consumer);
list[idx].id = output->id;
list[idx].max_size = output->max_size;
assert(output->consumer);
list[idx].id = output->id;
list[idx].max_size = output->max_size;
- strncpy(list[idx].name, output->name, sizeof(list[idx].name));
+ if (lttng_strncpy(list[idx].name, output->name,
+ sizeof(list[idx].name))) {
+ ret = -LTTNG_ERR_INVALID;
+ goto error;
+ }
if (output->consumer->type == CONSUMER_DST_LOCAL) {
if (output->consumer->type == CONSUMER_DST_LOCAL) {
- strncpy(list[idx].ctrl_url, output->consumer->dst.trace_path,
- sizeof(list[idx].ctrl_url));
+ if (lttng_strncpy(list[idx].ctrl_url,
+ output->consumer->dst.trace_path,
+ sizeof(list[idx].ctrl_url))) {
+ ret = -LTTNG_ERR_INVALID;
+ goto error;
+ }
} else {
/* Control URI. */
ret = uri_to_str_url(&output->consumer->dst.net.control,
} else {
/* Control URI. */
ret = uri_to_str_url(&output->consumer->dst.net.control,
@@
-3895,8
+3906,12
@@
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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