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Code Issues Releases Wiki Activity

[improv_serial] Use stack buffer for RSSI formatting

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This commit is contained in:
J. Nick Koston
2025-12-20 10:55:16 -10:00
parent 6c2d255230
commit c0ab783ba2
1 changed files with 4 additions and 2 deletions
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6
esphome/components/improv_serial/improv_serial_component.cpp
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@@ -263,8 +263,10 @@ bool ImprovSerialComponent::parse_improv_payload_(improv::ImprovCommand &command
if (std::find(networks.begin(), networks.end(), ssid) != networks.end())
continue;
// Send each ssid separately to avoid overflowing the buffer
std::vector<uint8_t> data = improv::build_rpc_response(
improv::GET_WIFI_NETWORKS, {ssid, str_sprintf("%d", scan.get_rssi()), YESNO(scan.get_with_auth())}, false);
char rssi_buf[8]; // RSSI range: -127 to 0
snprintf(rssi_buf, sizeof(rssi_buf), "%d", scan.get_rssi());
std::vector<uint8_t> data =
improv::build_rpc_response(improv::GET_WIFI_NETWORKS, {ssid, rssi_buf, YESNO(scan.get_with_auth())}, false);
this->send_response_(data);
networks.push_back(ssid);
}