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Merge pull request #65 from zjs81/fix/message-length-safety-margin

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fix: add safety margin to text message overhead calculations
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zjs81 2026-01-20 21:51:53 -07:00 • committed by GitHub
commit cc43f4d198
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1 changed files with 2 additions and 2 deletions
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lib/connector/meshcore_protocol.dart
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@ -195,8 +195,8 @@ const int maxFrameSize = 172;
const int appProtocolVersion = 3;
// Matches firmware MAX_TEXT_LEN (10 * CIPHER_BLOCK_SIZE).
const int maxTextPayloadBytes = 160;
const int _sendTextMsgOverheadBytes = 1 + 1 + 1 + 4 + 6 + 1;
const int _sendChannelTextMsgOverheadBytes = 1 + 1 + 1 + 4 + 1;
const int _sendTextMsgOverheadBytes = 1 + 1 + 1 + 4 + 6 + 1 + 2; // +2 safety margin
const int _sendChannelTextMsgOverheadBytes = 1 + 1 + 1 + 4 + 1 + 2; // +2 safety margin
int maxContactMessageBytes() {
final byFrame = maxFrameSize - _sendTextMsgOverheadBytes;