suiword9
Store data to user-space
Part of store(9).
Usage
#include <sys/types.h>
#include <sys/time.h>
#include <sys/systm.h>
#include <sys/resourcevar.h>
int
subyte(user_addr_t addr, int byte);
int
suibyte(user_addr_t addr, int byte);
int
suiword(user_addr_t addr, int word);
int
sulong(user_addr_t addr, int64_t longword);
int
suulong(user_addr_t addr, uint64_t longword);
int
suword(user_addr_t addr, int word);
Overview
The store functions are designed to copy small amounts of data to user-space.
The store routines provide the following functionality:
subyte()-
Stores a byte of data to the user-space address addr.
suibyte()-
Stores a byte of data to the user-space address addr. This function is safe to call during an interrupt context.
suiword()-
Stores a word of data to the user-space address addr. This function is safe to call during an interrupt context.
sulong()-
Stores a long word of data to the user-space address addr.
suulong()-
Stores a unsigned long word of data to the user-space address addr.
suword()-
Stores a word of data to the user-space address addr.
Return values
The store functions return 0 on success or -1 on failure.
Releases
Unchanged in 112 releases since Mac OS X 10.5.