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FETCH (9) | Kernel routines | Unix Manual Pages | :man▋
NAME
fetch, fubyte, fusword, fuswintr, fuword - fetch data from user-space
CONTENTS
Synopsis
Description
Return Values
See Also
SYNOPSIS
.In sys/types.h
.In sys/time.h
.In sys/systm.h
.In sys/resourcevar.h int fubyte "const void *base" int fusword "void *base" int fuswintr "void *base" long fuword "const 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 context. | | fuword | Fetches a word of data from the user-space address base. | |
RETURN VALUES
The fetch functions return the data fetched or -1 on failure.
SEE ALSO
copy(9), store(9)
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