From 56e5190f332651a933e4c1f51dceba4fb40b0ca2 Mon Sep 17 00:00:00 2001 From: jim Date: Wed, 18 Oct 2023 15:50:35 +0800 Subject: [PATCH] esp_http_client: Fix reset errno to 0 before call esp_transport_read Closes https://github.com/espressif/esp-idf/issues/9020 --- components/esp_http_client/esp_http_client.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/components/esp_http_client/esp_http_client.c b/components/esp_http_client/esp_http_client.c index 25454cbdcd..96d62f0cf3 100644 --- a/components/esp_http_client/esp_http_client.c +++ b/components/esp_http_client/esp_http_client.c @@ -1028,6 +1028,7 @@ static int esp_http_client_get_data(esp_http_client_handle_t client) ESP_LOGD(TAG, "data_process=%lld, content_length=%lld", client->response->data_process, client->response->content_length); + errno = 0; int rlen = esp_transport_read(client->transport, res_buffer->data, client->buffer_size_rx, client->timeout_ms); if (rlen >= 0) { // When tls error is ESP_TLS_ERR_SSL_WANT_READ (-0x6900), esp_trasnport_read returns ERR_TCP_TRANSPORT_CONNECTION_TIMEOUT (0x0). @@ -1258,6 +1259,7 @@ int64_t esp_http_client_fetch_headers(esp_http_client_handle_t client) client->response->status_code = -1; while (client->state < HTTP_STATE_RES_COMPLETE_HEADER) { + errno = 0; buffer->len = esp_transport_read(client->transport, buffer->data, client->buffer_size_rx, client->timeout_ms); if (buffer->len <= 0) { if (buffer->len == ERR_TCP_TRANSPORT_CONNECTION_TIMEOUT) {