Fix TLS-PSK mode not working with port 8883.

Closes #2152. Thanks to jetpax.

ChangeLog.txt

@@ -8,6 +8,7 @@ Broker:
 Clients:
 - Set `receive-maximum` to not exceed the `-C` message count in mosquitto_sub
   and mosquitto_rr, to avoid potentially lost messages. Closes #2134.
+- Fix TLS-PSK mode not working with port 8883. Closes #2152.
 
 Build:
 - A variety of minor build related fixes, like functions not having previous

client/client_shared.c

@@ -1263,6 +1263,14 @@ int client_opts_set(struct mosquitto *mosq, struct mosq_config *cfg)
 			mosquitto_lib_cleanup();
 			return 1;
 		}
+#  ifdef FINAL_WITH_TLS_PSK
+	}else if(cfg->psk){
+		if(mosquitto_tls_psk_set(mosq, cfg->psk, cfg->psk_identity, NULL)){
+			err_printf(cfg, "Error: Problem setting TLS-PSK options.\n");
+			mosquitto_lib_cleanup();
+			return 1;
+		}
+#  endif
 	}else if(cfg->port == 8883){
 		mosquitto_int_option(mosq, MOSQ_OPT_TLS_USE_OS_CERTS, 1);
 	}
@@ -1295,13 +1303,6 @@ int client_opts_set(struct mosquitto *mosq, struct mosq_config *cfg)
 		mosquitto_lib_cleanup();
 		return 1;
 	}
-#  ifdef FINAL_WITH_TLS_PSK
-	if(cfg->psk && mosquitto_tls_psk_set(mosq, cfg->psk, cfg->psk_identity, NULL)){
-		err_printf(cfg, "Error: Problem setting TLS-PSK options.\n");
-		mosquitto_lib_cleanup();
-		return 1;
-	}
-#  endif
 	if((cfg->tls_version || cfg->ciphers) && mosquitto_tls_opts_set(mosq, 1, cfg->tls_version, cfg->ciphers)){
 		err_printf(cfg, "Error: Problem setting TLS options, check the options are valid.\n");
 		mosquitto_lib_cleanup();