strncpy have the danger of not putting a null character at the end of the destination , if source is longer than num. > Copies the first num characters of sour

strncpy have the danger of not putting a null character at the end of the destination , if source is longer than num. > Copies the first num characters of source to destination. If the end of the source C string (which is signaled by a null-character) is found before num characters have been copied, destination is padded with zeros until a total of num characters have been written to it. No null-character is implicitly appended at the end of destination if source is longer than num. Thus, in this case, destination shall not be considered a null terminated C string (reading it as such would overflow).