Generate device name

esp32_device/main/dev_name.c

@@ -0,0 +1,40 @@
+#include "stddef.h"
+#include "dev_name.h"
+#include "storage.h"
+#include "stdio.h"
+#include "random.h"
+#include "constants.h"
+#include "string.h"
+
+#define DEV_PREFIX "ESP32 "
+
+bool dev_generate_name_if_required()
+{
+    // Check if a device name has already been defined
+    if (storage_get_dev_name(NULL) > 0)
+        return false;
+
+    // Generate random device name
+    char name[DEV_NAME_LEN];
+    rand_str(DEV_NAME_LEN - 1, name);
+    storage_set_dev_name(name);
+
+    return true;
+}
+
+char *dev_name()
+{
+    size_t len = storage_get_dev_name(NULL);
+
+    char *dev = malloc(len + strlen(DEV_PREFIX) + 1);
+    if (dev == NULL)
+    {
+        printf("Failed to allocate memory to store dev name!\n");
+        return NULL;
+    }
+
+    strcpy(dev, DEV_PREFIX);
+    storage_get_dev_name(dev + strlen(DEV_PREFIX));
+
+    return dev;
+}