Any reason for no getutX() functions?

[matt <matt_(_at_)_scrapshells_(_dot_)_com>]

Hello,

I was looking for some BSD equivalents to the SVR4 getutent, and other 
like functions for reading/manipulating utmp.  I found a BSD 
implementation of them in the archives at:

http://wuarchive.wustl.edu/languages/c/unix-c/languages/c/bsdgetut.tar.Z
or I realize I code just look at the code from /usr/src/usr.bin/stuff....

but is there any particular reason such functions are not standard in BSD?
Thanks,

				-Matt-