Implemented the creation of backing disks

src/backing.c

@@ -9,6 +9,8 @@
 #include <unistd.h>
 #include <dirent.h>
 #include <errno.h>
+#include <time.h>
+#include <stdio.h>
 #include <sys/stat.h>
 
 char* get_backings_path(void) {
@@ -182,3 +184,44 @@ char* find_latest_backing(void) {
 
 	return latest_backing;
 }
+
+bool create_backing(const char* disk, const char* description) {
+	// Create the backing disk name
+	uint64_t timestamp = (uint64_t)time(NULL);
+	char* backing_name = NULL;
+
+	if (description == NULL || strlen(description) == 0)
+		backing_name = format("%lu", timestamp);
+	else
+		backing_name = format("%lu-%s", timestamp, description);
+
+	if (backing_name == NULL) {
+		log_msg(LOG_ERROR, "Failed to create the backing disk name.");
+		return false;
+	}
+
+	// Create the backing disk path
+	char* backings_path = get_backings_path();
+	if (backings_path == NULL) {
+		free(backing_name);
+		return false;
+	}
+
+	char* backing_path = format("%s/%s", backings_path, backing_name);
+	free(backing_name);
+	free(backings_path);
+
+	if (backing_path == NULL)
+		return false;
+
+	// Copy the disk to the backing disk
+	if (!copy_file(disk, backing_path, 0755, 0, 0)) {
+		free(backing_path);
+		return false;
+	}
+
+	// Free the backing disk path
+	free(backing_path);
+
+	return true;
+}