NAME
store, subyte, suibyte, suiword, sulong, suulong, suword – store data to user-space
SYNOPSIS
#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);
DESCRIPTION
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.