ggeettuubbdd() -- Memory-Manipulation Routine

cchhaarr
ggeettuubbdd(_u)
cchhaarr *_u;

ggeettuubbdd() reads  a byte  from offset  _u in the  current process's  user data
space.  If an address fault occurs, ggeettuubbdd() sets uu.uu_eerrrroorr to EEFFAAUULLTT.

_S_e_e _A_l_s_o
mmeemmoorryy-mmaanniippuullaattiioonn rroouuttiinneess
