intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 17 insertions, 0 deletions

diff --git a/util/generic/strfcpy.h b/util/generic/strfcpy.h
new file mode 100644
index 0000000000..8a95bc3df2
--- /dev/null
+++ b/util/generic/strfcpy.h
@@ -0,0 +1,17 @@
+#pragma once
+
+/*
+ * strfcpy is a faster version of strlcpy().
+ * It returns void thus does not wastes time computing
+ * (most likely, unneeded) strlen(str)
+ *
+ * Comparison with other copying functions:
+ *   strcpy()  - buffer overflow ready
+ *   strncpy() - wastes time filling exactly n bytes with 0
+ *   strlcpy() - wastes time searching for the length of src
+ *   memcpy()  - wastes time copying exactly n bytes even if the string is shorter
+ */
+
+#include <stddef.h>
+
+void strfcpy(char* dst, const char* src, size_t n);