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only during data

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This commit is contained in:
J. Nick Koston
2026-02-21 19:20:24 -06:00
parent 46c123ec61
commit 66a2a0d62e
1 changed files with 7 additions and 4 deletions
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11
esphome/components/api/api_frame_helper_noise.cpp
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@@ -201,10 +201,13 @@ APIError APINoiseFrameHelper::try_read_frame_() {
return (state_ == State::DATA) ? APIError::BAD_DATA_PACKET : APIError::BAD_HANDSHAKE_PACKET_LEN;
}
// Reserve space for body (+1 for null terminator so protobuf StringRef fields
// can be safely null-terminated in-place after decode)
if (this->rx_buf_.size() != msg_size + 1) {
this->rx_buf_.resize(msg_size + 1);
// Reserve space for body (+1 for null terminator in DATA state so protobuf
// StringRef fields can be safely null-terminated in-place after decode.
// During handshake, rx_buf_.size() is used in prologue construction, so
// the buffer must be exactly msg_size to avoid prologue mismatch.)
uint16_t alloc_size = msg_size + (state_ == State::DATA ? 1 : 0);
if (this->rx_buf_.size() != alloc_size) {
this->rx_buf_.resize(alloc_size);
}
if (rx_buf_len_ < msg_size) {