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FETCH(9)                     OpenBSD Kernel Manual                    FETCH(9)

NAME
     fetch - fetch data from user-space

SYNOPSIS
     #include <sys/types.h>
     #include <sys/systm.h>

     int
     fubyte(void *base);

     int
     fusword(void *base);

     int
     fuswintr(void *base);

     int
     fuword(void *base);

DESCRIPTION
     The fetch functions are designed to copy small amounts of data from user-
     space.

     The fetch routines provide the following functionality:

     fubyte()    Fetches a byte of data from the user-space address base.

     fusword()   Fetches a short word of data from the user-space address
                 base.

     fuswintr()  Fetches a short word of data from the user-space address
                 base. This function is safe to call during an interrupt con-
                 text.

     fuword()    Fetches a word of data from the user-space address base.

NOTE
     The fetch routines are deprecated.  All new code should use copyin().

RETURN VALUES
     The fetch functions return the data fetched or -1 on failure.

SEE ALSO
     copy(9), store(9)

OpenBSD 3.2                     January 7, 1996                              1