Ashish Sharma 8c181842f1 feat(esp_http_client): detect oversized headers in tx buffer while sending request ...

When CONFIG_ESP_HTTP_CLIENT_STRICT_HEADER_BUFFER is enabled,
esp_http_client_request_send() fails fast when a single request header is
larger than buffer_size_tx, instead of silently emitting a truncated request.

The condition is reported with a dedicated ESP_ERR_HTTP_HEADER_TOO_LONG error
code rather than overloading ESP_ERR_HTTP_WRITE_DATA, so callers can tell a
permanent header-sizing failure apart from a transient write error. errno is
cleared on this path so the async caller (which maps errno == EAGAIN to "retry
later") does not spin retrying a request that can never succeed.

Closes https://github.com/espressif/esp-idf/issues/18639

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-06-25 18:24:42 +08:00

..

esp_http_client.h

feat(esp_http_client): detect oversized headers in tx buffer while sending request

2026-06-25 18:24:42 +08:00