In Tag version ESP-MQTT_FOR_IDF_3.1,I encounter a problem.This seems to be an issue with buffer overflow (IDFGH-14060)

[cortex-m4]

Checklist

• [X] Checked the issue tracker for similar issues to ensure this is not a duplicate.
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Issue or Suggestion Description

When I complier ESP8266 RTOS project ↓

esp-mqtt/lib/transport_ws.c:100:53: error: '258EAFA5-E914-47DA-95CA-C5AB...' directive writing 36 bytes into a region of size between 33 and 64 [-Werror=format-overflow=] int key_len = sprintf((char)client_key_b64, "%s258EAFA5-E914-47DA-95CA-C5AB0DC85B11", (char)client_key); esp-mqtt/lib/transport_ws.c:100:19: note: 'sprintf' output between 37 and 68 bytes into a destination of size 64 int key_len = sprintf((char)client_key_b64, "%s258EAFA5-E914-47DA-95CA-C5AB0DC85B11", (char)client_key);

cc1: some warnings being treated as errors

[cortex-m4]

Use version ESP-MQTT_FOR_IDF_4.x instead of ESP-MQTT_FOR_IDF_3.1 can solve this question.

[euripedesrocha]

@cortex-m4 I assume that you solved your issue. Feel free to reopen If I misunderstood.