copy string until character
*dst, const void
*src, int c,
function copies bytes from string src to string
dst. If the character c (as
converted to an unsigned char) occurs in the string
src, the copy stops and a pointer to the byte after
the copy of c in the string dst
is returned. Otherwise, len bytes are copied, and a
null pointer is returned.
If the src and dst strings overlap, the behavior is undefined.
bcopy(3), memcpy(3), memmove(3), strcpy(3), strlcpy(3)
memccpy() function first appeared in
AT&T System V UNIX and was reimplemented