Fix messages to $ prefixed topics being rejected.

Closes #2111. Thanks to yellowgg2.
eclipse · Mar 6, 2021 · f89a3c3 · f89a3c3
1 parent 7baca42
commit f89a3c3
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diff --git a/ChangeLog.txt b/ChangeLog.txt
@@ -4,6 +4,7 @@
 Broker:
 - Fix `tls_version` behaviour not matching documentation. It was setting the
  exact TLS version to use, not the minimium TLS version to use. Closes #2110.
+- Fix messages to `$` prefixed topics being rejected. Closes #2111.
 
 
 2.0.8 - 2021-02-25

diff --git a/src/retain.c b/src/retain.c
@@ -83,7 +83,10 @@ int retain__store(const char *topic, struct mosquitto_msg_store *stored, char **
  assert(split_topics);
 
  HASH_FIND(hh, db.retains, split_topics[0], strlen(split_topics[0]), retainhier);
- if(retainhier == NULL) return MOSQ_ERR_NOT_FOUND;
+ if(retainhier == NULL){
+ retainhier = retain__add_hier_entry(NULL, &db.retains, split_topics[0], (uint16_t)strlen(split_topics[0]));
+ if(!retainhier) return MOSQ_ERR_NOMEM;
+ }
 
  for(i=0; split_topics[i] != NULL; i++){
  slen = strlen(split_topics[i]);