fubyte(9r) fubyte(9r)
NAME
fubyte - General: Returns a byte from user address space
SYNOPSIS
int fubyte(
char *user_src );
ARGUMENTS
Specifies the address in user space from which to read the byte.
DESCRIPTION
The fubyte routine returns 1 byte from the unprotected user address space to the calling program.
NOTES
If the size of the return value is larger than 1 byte, the byte actually used for the return value is implementation defined.
RETURN VALUES
Upon successful completion, fubyte returns a value greater than 0 (zero). Otherwise, it returns -1, indicating that the user address speci-
fied in user_src cannot be accessed.
SEE ALSO
Routines: copyinstr(9r), fuword(9r), subyte(9r), suword(9r)
fubyte(9r)
