--- /dev/null
+/*
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * Copyright (C) 2009 Pierre-Marc Fournier
+ */
+
+#ifndef UST_SNPRINTF
+#define UST_SNPRINTF
+
+#include <stdarg.h>
+#include <stddef.h>
+
+extern int ust_safe_vsnprintf(char *str, size_t n, const char *fmt, va_list ap);
+extern int ust_safe_snprintf(char *str, size_t n, const char *fmt, ...);
+
+#endif /* UST_SNPRINTF */