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Check for NULL before strcmp.

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This commit is contained in:
Roger A. Light 2021-10-24 14:23:57 +01:00
parent 7b614b3b59
commit 9e5b850181
1 changed files with 1 additions and 1 deletions
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2
src/database.c
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@ -453,7 +453,7 @@ int db__message_insert(struct mosquitto *context, uint16_t mid, enum mosquitto_m
&& dir == mosq_md_out && retain == false && stored->dest_ids){
for(i=0; i<stored->dest_id_count; i++){
if(!strcmp(stored->dest_ids[i], context->id)){
if(stored->dest_ids[i] && !strcmp(stored->dest_ids[i], context->id)){
/* We have already sent this message to this client. */
mosquitto_property_free_all(&properties);
return MOSQ_ERR_SUCCESS;