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Add some sanity check to avoid buffer overflow

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Luc 2024-02-05 15:13:49 +08:00
parent d8f84b94d9
commit cc7c2cfc73
1 changed files with 4 additions and 0 deletions
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4
esp3d/src/modules/websocket/websocket_server.cpp
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@ -268,6 +268,10 @@ size_t WebSocket_Server::writeBytes(const uint8_t *buffer, size_t size) {
} }
// need periodic check to force to flush in case of no end // need periodic check to force to flush in case of no end
for (uint i = 0; i < size; i++) { for (uint i = 0; i < size; i++) {
//add a sanity check to avoid buffer overflow
if (_TXbufferSize >= TXBUFFERSIZE) {
flushTXbuffer();
}
_TXbuffer[_TXbufferSize] = buffer[i]; _TXbuffer[_TXbufferSize] = buffer[i];
_TXbufferSize++; _TXbufferSize++;
} }