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fix(WiFi): Fix strncpy missing NULL terminator [-Werror=stringop-truncation] (#7668)

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Rodrigo Martín 2024-10-29 04:56:50 +01:00 committed by GitHub
parent aa0e155e22
commit abbd7faa64
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4 changed files with 12 additions and 12 deletions
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4
esphome/components/wifi/wifi_component.cpp
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@ -297,8 +297,8 @@ void WiFiComponent::set_sta(const WiFiAP &ap) {
void WiFiComponent::clear_sta() { this->sta_.clear(); }
void WiFiComponent::save_wifi_sta(const std::string &ssid, const std::string &password) {
SavedWifiSettings save{};
strncpy(save.ssid, ssid.c_str(), sizeof(save.ssid));
strncpy(save.password, password.c_str(), sizeof(save.password));
snprintf(save.ssid, sizeof(save.ssid), "%s", ssid.c_str());
snprintf(save.password, sizeof(save.password), "%s", password.c_str());
this->pref_.save(&save);
// ensure it's written immediately
global_preferences->sync();

8
esphome/components/wifi/wifi_component_esp32_arduino.cpp
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@ -137,8 +137,8 @@ bool WiFiComponent::wifi_sta_connect_(const WiFiAP &ap) {
// https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/network/esp_wifi.html#_CPPv417wifi_sta_config_t
wifi_config_t conf;
memset(&conf, 0, sizeof(conf));
strncpy(reinterpret_cast<char *>(conf.sta.ssid), ap.get_ssid().c_str(), sizeof(conf.sta.ssid));
strncpy(reinterpret_cast<char *>(conf.sta.password), ap.get_password().c_str(), sizeof(conf.sta.password));
snprintf(reinterpret_cast<char *>(conf.sta.ssid), sizeof(conf.sta.ssid), "%s", ap.get_ssid().c_str());
snprintf(reinterpret_cast<char *>(conf.sta.password), sizeof(conf.sta.password), "%s", ap.get_password().c_str());
// The weakest authmode to accept in the fast scan mode
if (ap.get_password().empty()) {
@ -746,7 +746,7 @@ bool WiFiComponent::wifi_start_ap_(const WiFiAP &ap) {
wifi_config_t conf;
memset(&conf, 0, sizeof(conf));
strncpy(reinterpret_cast<char *>(conf.ap.ssid), ap.get_ssid().c_str(), sizeof(conf.ap.ssid));
snprintf(reinterpret_cast<char *>(conf.ap.ssid), sizeof(conf.ap.ssid), "%s", ap.get_ssid().c_str());
conf.ap.channel = ap.get_channel().value_or(1);
conf.ap.ssid_hidden = ap.get_ssid().size();
conf.ap.max_connection = 5;
@ -757,7 +757,7 @@ bool WiFiComponent::wifi_start_ap_(const WiFiAP &ap) {
*conf.ap.password = 0;
} else {
conf.ap.authmode = WIFI_AUTH_WPA2_PSK;
strncpy(reinterpret_cast<char *>(conf.ap.password), ap.get_password().c_str(), sizeof(conf.ap.password));
snprintf(reinterpret_cast<char *>(conf.ap.password), sizeof(conf.ap.password), "%s", ap.get_password().c_str());
}
// pairwise cipher of SoftAP, group cipher will be derived using this.

8
esphome/components/wifi/wifi_component_esp8266.cpp
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@ -236,8 +236,8 @@ bool WiFiComponent::wifi_sta_connect_(const WiFiAP &ap) {
struct station_config conf {};
memset(&conf, 0, sizeof(conf));
strncpy(reinterpret_cast<char *>(conf.ssid), ap.get_ssid().c_str(), sizeof(conf.ssid));
strncpy(reinterpret_cast<char *>(conf.password), ap.get_password().c_str(), sizeof(conf.password));
snprintf(reinterpret_cast<char *>(conf.ssid), sizeof(conf.ssid), "%s", ap.get_ssid().c_str());
snprintf(reinterpret_cast<char *>(conf.password), sizeof(conf.password), "%s", ap.get_password().c_str());
if (ap.get_bssid().has_value()) {
conf.bssid_set = 1;
@ -775,7 +775,7 @@ bool WiFiComponent::wifi_start_ap_(const WiFiAP &ap) {
return false;
struct softap_config conf {};
strncpy(reinterpret_cast<char *>(conf.ssid), ap.get_ssid().c_str(), sizeof(conf.ssid));
snprintf(reinterpret_cast<char *>(conf.ssid), sizeof(conf.ssid), "%s", ap.get_ssid().c_str());
conf.ssid_len = static_cast<uint8>(ap.get_ssid().size());
conf.channel = ap.get_channel().value_or(1);
conf.ssid_hidden = ap.get_hidden();
@ -787,7 +787,7 @@ bool WiFiComponent::wifi_start_ap_(const WiFiAP &ap) {
*conf.password = 0;
} else {
conf.authmode = AUTH_WPA2_PSK;
strncpy(reinterpret_cast<char *>(conf.password), ap.get_password().c_str(), sizeof(conf.password));
snprintf(reinterpret_cast<char *>(conf.password), sizeof(conf.password), "%s", ap.get_password().c_str());
}
ETS_UART_INTR_DISABLE();

4
esphome/components/wifi/wifi_component_esp_idf.cpp
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@ -289,8 +289,8 @@ bool WiFiComponent::wifi_sta_connect_(const WiFiAP &ap) {
// https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/network/esp_wifi.html#_CPPv417wifi_sta_config_t
wifi_config_t conf;
memset(&conf, 0, sizeof(conf));
strncpy(reinterpret_cast<char *>(conf.sta.ssid), ap.get_ssid().c_str(), sizeof(conf.sta.ssid));
strncpy(reinterpret_cast<char *>(conf.sta.password), ap.get_password().c_str(), sizeof(conf.sta.password));
snprintf(reinterpret_cast<char *>(conf.sta.ssid), sizeof(conf.sta.ssid), "%s", ap.get_ssid().c_str());
snprintf(reinterpret_cast<char *>(conf.sta.password), sizeof(conf.sta.password), "%s", ap.get_password().c_str());
// The weakest authmode to accept in the fast scan mode
if (ap.get_password().empty()) {