NAME
vm_map_check_protection —
check memory protection for a
vm_map
SYNOPSIS
#include
<sys/param.h>
#include <vm/vm.h>
#include <vm/vm_map.h>
boolean_t
vm_map_check_protection(vm_map_t
map, vm_offset_t start,
vm_offset_t end, vm_prot_t
protection);
DESCRIPTION
Thevm_map_check_protection()
function asserts that the target map allows the
specified privilege protection over the entire address
range from start to end. The
region MUST be contiguous; no holes are allowed.
IMPLEMENTATION NOTES
This code does not and SHOULD not check whether the contents of the region are accessible. For example, a small file may be mapped into an address space which is significantly larger in size.
RETURN VALUES
The vm_map_check_protection() function
returns TRUE if the privilege is allowed; if it is not allowed, or if any
other error occurred, the value FALSE is returned.
SEE ALSO
AUTHORS
This manual page was written by Bruce M Simpson <bms@spc.org>.