1 files changed, 21 insertions, 0 deletions

diff --git a/libbb/safe_strncpy.c b/libbb/safe_strncpy.c
new file mode 100644
index 000000000..42bc16ea0
--- /dev/null
+++ b/libbb/safe_strncpy.c
@@ -0,0 +1,21 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * Utility routines.
+ *
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ */
+
+#include <string.h>
+#include "libbb.h"
+
+
+
+/* Like strncpy but make sure the resulting string is always 0 terminated. */
+char * safe_strncpy(char *dst, const char *src, size_t size)
+{
+        if (!size) return dst;
+        dst[--size] = '\0';
+        return strncpy(dst, src, size);
+}