Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Unless you have a valid reason to accept truncation you must check whether
truncation has occurred, treat it as an error, and handle the error
appropriately.
+
+#### Use `strlcat()` instead of `strncat()`
+
+When concatenating strings always use `strlcat()` instead of `strncat()`. The
+advantage of `strlcat()` is that it will always append a `\0` byte to the
+string.
+
+Unless you have a valid reason to accept truncation you must check whether
+truncation has occurred, treat it as an error, and handle the error
+appropriately.