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Fix typo in WebSocketClient::write buffer size clamp#202

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pennam:websocket-write-fix
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Fix typo in WebSocketClient::write buffer size clamp#202
pennam wants to merge 1 commit into
arduino-libraries:masterfrom
pennam:websocket-write-fix

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@pennam

@pennam pennam commented Jul 13, 2026

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Use sizeof(iTxBuffer) instead of sizeof(iTxSize) when computing the remaining space, preventing truncated writes and potential memcpy overflow.

Originally reported here #141

Use sizeof(iTxBuffer) instead of sizeof(iTxSize) when computing the
remaining space, preventing truncated writes and potential memcpy overflow.
@pennam pennam requested review from andreagilardoni and rhpco July 13, 2026 10:36
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Memory usage change @ af935ce

Board flash % RAM for global variables %
arduino:samd:mkr1000 0 - 0 0.0 - 0.0 0 - 0 0.0 - 0.0
Click for full report table
Board examples/BasicAuthGet
flash
% examples/BasicAuthGet
RAM for global variables
% examples/CustomHeader
flash
% examples/CustomHeader
RAM for global variables
% examples/DweetGet
flash
% examples/DweetGet
RAM for global variables
% examples/DweetPost
flash
% examples/DweetPost
RAM for global variables
% examples/HueBlink
flash
% examples/HueBlink
RAM for global variables
% examples/ParseURL
flash
% examples/ParseURL
RAM for global variables
% examples/PostWithHeaders
flash
% examples/PostWithHeaders
RAM for global variables
% examples/SimpleDelete
flash
% examples/SimpleDelete
RAM for global variables
% examples/SimpleGet
flash
% examples/SimpleGet
RAM for global variables
% examples/SimpleHttpExample
flash
% examples/SimpleHttpExample
RAM for global variables
% examples/SimplePost
flash
% examples/SimplePost
RAM for global variables
% examples/SimplePut
flash
% examples/SimplePut
RAM for global variables
% examples/SimpleWebSocket
flash
% examples/SimpleWebSocket
RAM for global variables
%
arduino:samd:mkr1000 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0 0 0.0
Click for full report CSV
Board,examples/BasicAuthGet<br>flash,%,examples/BasicAuthGet<br>RAM for global variables,%,examples/CustomHeader<br>flash,%,examples/CustomHeader<br>RAM for global variables,%,examples/DweetGet<br>flash,%,examples/DweetGet<br>RAM for global variables,%,examples/DweetPost<br>flash,%,examples/DweetPost<br>RAM for global variables,%,examples/HueBlink<br>flash,%,examples/HueBlink<br>RAM for global variables,%,examples/ParseURL<br>flash,%,examples/ParseURL<br>RAM for global variables,%,examples/PostWithHeaders<br>flash,%,examples/PostWithHeaders<br>RAM for global variables,%,examples/SimpleDelete<br>flash,%,examples/SimpleDelete<br>RAM for global variables,%,examples/SimpleGet<br>flash,%,examples/SimpleGet<br>RAM for global variables,%,examples/SimpleHttpExample<br>flash,%,examples/SimpleHttpExample<br>RAM for global variables,%,examples/SimplePost<br>flash,%,examples/SimplePost<br>RAM for global variables,%,examples/SimplePut<br>flash,%,examples/SimplePut<br>RAM for global variables,%,examples/SimpleWebSocket<br>flash,%,examples/SimpleWebSocket<br>RAM for global variables,%
arduino:samd:mkr1000,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0,0,0.0

@per1234 per1234 added type: imperfection Perceived defect in any part of project topic: code Related to content of the project itself labels Jul 13, 2026
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