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enforce size

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This commit is contained in:
J. Nick Koston
2026-05-01 09:09:23 -05:00
parent 54ac510a25
commit 28e1b32259
2 changed files with 3 additions and 1 deletions
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esphome/components/esphome/ota/ota_esphome.cpp
+1
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@@ -212,6 +212,7 @@ void ESPHomeOTAComponent::handle_handshake_() {
// legacy response.
this->extended_proto_ = (this->ota_features_ & CLIENT_FEATURE_SUPPORTS_EXTENDED_PROTOCOL) != 0;
if (this->extended_proto_) {
static_assert(HANDSHAKE_BUF_SIZE >= 2, "handshake_buf_ must hold the 2-byte extended-protocol feature ack");
this->handshake_buf_[0] = ota::OTA_RESPONSE_FEATURE_FLAGS;
this->handshake_buf_[1] = (supports_compression ? SERVER_FEATURE_SUPPORTS_COMPRESSION : 0);
} else {
esphome/components/esphome/ota/ota_esphome.h
+2 -1
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@@ -97,8 +97,9 @@ class ESPHomeOTAComponent final : public ota::OTAComponent {
ota::OTABackendPtr backend_;
uint32_t client_connect_time_{0};
static constexpr size_t HANDSHAKE_BUF_SIZE = 5;
uint16_t port_;
uint8_t handshake_buf_[5];
uint8_t handshake_buf_[HANDSHAKE_BUF_SIZE];
OTAState ota_state_{OTAState::IDLE};
uint8_t handshake_buf_pos_{0};
uint8_t ota_features_{0};