Update mqtt.c

fix mqtt not working with empty user/pass - ported from openshwprojects/OpenBK7231T@2c3af1f
openshwprojects · Sep 22, 2022 · e3cae31 · e3cae31
1 parent 633a7ef
commit e3cae31
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/components/network/lwip/src/apps/mqtt/mqtt.c b/components/network/lwip/src/apps/mqtt/mqtt.c
@@ -1327,7 +1327,7 @@ mqtt_client_connect(mqtt_client_t *client, const ip_addr_t *ip_addr, u16_t port,
     LWIP_ERROR("mqtt_client_connect: remaining_length overflow", len <= 0xFFFF, return ERR_VAL);
     remaining_length = (u16_t)len;
   }
-  if (client_info->client_user != NULL) {
+  if (client_info->client_user != NULL && client_info->client_user[0] != NULL) {
     flags |= MQTT_CONNECT_FLAG_USERNAME;
     len = strlen(client_info->client_user);
     LWIP_ERROR("mqtt_client_connect: client_info->client_user length overflow", len <= 0xFFFF, return ERR_VAL);
@@ -1337,7 +1337,7 @@ mqtt_client_connect(mqtt_client_t *client, const ip_addr_t *ip_addr, u16_t port,
     LWIP_ERROR("mqtt_client_connect: remaining_length overflow", len <= 0xFFFF, return ERR_VAL);
     remaining_length = (u16_t)len;
   }
-  if (client_info->client_pass != NULL) {
+  if (client_info->client_pass != NULL && client_info->client_pass[0] != NULL) {
     flags |= MQTT_CONNECT_FLAG_PASSWORD;
     len = strlen(client_info->client_pass);
     LWIP_ERROR("mqtt_client_connect: client_info->client_pass length overflow", len <= 0xFFFF, return ERR_VAL);