char * strncpy

char * strncpy(char *, const char *, size_t)

The strncpy() function is similar to strcpy(), except that not more than n bytes of src are copied. Thus, if there is no null byte among the first n bytes of src, the result will not be null-terminated.

In the case where the length of src is less than that of n, the remainder of dest will be padded with nulls.