drivers: esp32: Fix esp_wifi_drv strncpy warning

rruuaanng · rruuaanng · commit 24b39fd236f8 · 2024-10-21T21:02:24.000+08:00
Fixed '-Wstringop-truncation' warning thrown by
ssid when using strncpy on esp32.

Signed-off-by: James Roy &lt;rruuaanng@outlook.com&gt;
diff --git a/drivers/wifi/esp32/src/esp_wifi_drv.c b/drivers/wifi/esp32/src/esp_wifi_drv.c
@@ -734,6 +734,7 @@ static int esp32_wifi_status(const struct device *dev, struct wifi_iface_status
 	}
 
 	strncpy(status->ssid, data->status.ssid, WIFI_SSID_MAX_LEN);
+	status->ssid[WIFI_SSID_MAX_LEN] = '\0';
 	status->ssid_len = strnlen(data->status.ssid, WIFI_SSID_MAX_LEN);
 	status->band = WIFI_FREQ_BAND_2_4_GHZ;
 	status->link_mode = WIFI_LINK_MODE_UNKNOWN;

Original file line number	Diff line number	Diff line change
`@@ -734,6 +734,7 @@ static int esp32_wifi_status(const struct device *dev, struct wifi_iface_status`
`734`	`734`	`}`
`735`	`735`
`736`	`736`	`strncpy(status->ssid, data->status.ssid, WIFI_SSID_MAX_LEN);`
	`737`	`+ status->ssid[WIFI_SSID_MAX_LEN] = '\0';`
`737`	`738`	`status->ssid_len = strnlen(data->status.ssid, WIFI_SSID_MAX_LEN);`
`738`	`739`	`status->band = WIFI_FREQ_BAND_2_4_GHZ;`
`739`	`740`	`status->link_mode = WIFI_LINK_MODE_UNKNOWN;`