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Code Issues Releases Wiki Activity

[wifi] Optimize WiFi MAC formatting to eliminate sprintf dependency

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This commit is contained in:
J. Nick Koston
2025-09-14 14:29:25 -05:00
parent 16b7714990
commit 35060416ba
2 changed files with 4 additions and 3 deletions
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2
esphome/components/wifi/wifi_component.cpp
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@@ -593,7 +593,7 @@ void WiFiComponent::check_scanning_finished() {
for (auto &res : this->scan_result_) { for (auto &res : this->scan_result_) {
char bssid_s[18]; char bssid_s[18];
auto bssid = res.get_bssid(); auto bssid = res.get_bssid();
sprintf(bssid_s, "%02X:%02X:%02X:%02X:%02X:%02X", bssid[0], bssid[1], bssid[2], bssid[3], bssid[4], bssid[5]); format_mac_addr_upper(bssid, bssid_s);
if (res.get_matches()) { if (res.get_matches()) {
ESP_LOGI(TAG, "- '%s' %s" LOG_SECRET("(%s) ") "%s", res.get_ssid().c_str(), ESP_LOGI(TAG, "- '%s' %s" LOG_SECRET("(%s) ") "%s", res.get_ssid().c_str(),

5
esphome/components/wifi_info/wifi_info_text_sensor.h
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@@ -1,6 +1,7 @@
#pragma once #pragma once
#include "esphome/core/component.h" #include "esphome/core/component.h"
#include "esphome/core/helpers.h"
#include "esphome/components/text_sensor/text_sensor.h" #include "esphome/components/text_sensor/text_sensor.h"
#include "esphome/components/wifi/wifi_component.h" #include "esphome/components/wifi/wifi_component.h"
#ifdef USE_WIFI #ifdef USE_WIFI
@@ -106,8 +107,8 @@ class BSSIDWiFiInfo : public PollingComponent, public text_sensor::TextSensor {
wifi::bssid_t bssid = wifi::global_wifi_component->wifi_bssid(); wifi::bssid_t bssid = wifi::global_wifi_component->wifi_bssid();
if (memcmp(bssid.data(), last_bssid_.data(), 6) != 0) { if (memcmp(bssid.data(), last_bssid_.data(), 6) != 0) {
std::copy(bssid.begin(), bssid.end(), last_bssid_.begin()); std::copy(bssid.begin(), bssid.end(), last_bssid_.begin());
char buf[30]; char buf[18];
sprintf(buf, "%02X:%02X:%02X:%02X:%02X:%02X", bssid[0], bssid[1], bssid[2], bssid[3], bssid[4], bssid[5]); format_mac_addr_upper(bssid.data(), buf);
this->publish_state(buf); this->publish_state(buf);
} }
} }