suword - General: Writes a word into user address space
int word );
Specifies the address in user space to write the word.
Specifies the word to be written.
The suword routine copies one word from the protected kernel
address space to the unprotected user address space.
Upon successful completion, suword returns the value 0
(zero). Otherwise, it returns a -1, indicating that the
user address specified in user_dest could not be accessed.
Routines: copyout(9r), copyoutstr(9r), fubyte(9r),
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