esp_http_client: Fix reset errno to 0 before call esp_transport_read

Closes #9020
espressif · Feb 29, 2024 · 2060f3a · 2060f3a
1 parent ba14fc2
commit 2060f3a
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/components/esp_http_client/esp_http_client.c b/components/esp_http_client/esp_http_client.c
@@ -1106,7 +1106,7 @@ static int esp_http_client_get_data(esp_http_client_handle_t client)
     esp_http_buffer_t *res_buffer = client->response->buffer;
 
     ESP_LOGD(TAG, "data_process=%"PRId64", content_length=%"PRId64, 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).
@@ -1345,6 +1345,7 @@ 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) {