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FETCH(9)		 BSD Kernel Developer's	Manual		      FETCH(9)

NAME
     fetch, fubyte, fuswintr, fuword, fuword16,	fuword32, fuword64 -- fetch
     data from user-space

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

     int
     fubyte(const void *base);

     long
     fuword(const void *base);

     int
     fuword16(void *base);

     int32_t
     fuword32(const void *base);

     int64_t
     fuword64(const void *base);

     #include <sys/resourcevar.h>

     int
     fuswintr(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.

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

     fuword16()	 Fetches 16 bits of data from the user-space address base.

     fuword32()	 Fetches 32 bits of data from the user-space address base.

     fuword64()	 Fetches 64 bits 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.

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

SEE ALSO
     copy(9), store(9)

BSD				October	5, 2009				   BSD
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO

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