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Diffstat (limited to 'src/protocol/survey0/survey.c')
-rw-r--r--src/protocol/survey0/survey.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/protocol/survey0/survey.c b/src/protocol/survey0/survey.c
index 51bce0c8..24a35003 100644
--- a/src/protocol/survey0/survey.c
+++ b/src/protocol/survey0/survey.c
@@ -338,6 +338,10 @@ surv0_pipe_start(void *arg)
surv0_pipe *p = arg;
surv0_sock *s = p->sock;
+ if (nni_pipe_peer(p->npipe) != NNI_PROTO_RESPONDENT_V0) {
+ return (NNG_EPROTO);
+ }
+
nni_mtx_lock(&s->mtx);
nni_list_append(&s->pipes, p);
nni_mtx_unlock(&s->mtx);