NAME vm_map_check_protection - check memory protection for a vm_map CONTENTS Synopsis Description Implementation Notes Return Values See Also Authors SYNOPSIS .In sys/param.h .In vm/vm.h .In vm/vm_map.h boolean_t .Fo vm_map_check_protection "vm_map_t map" "vm_offset_t start" "vm_offset_t end" "vm_prot_t protection" .Fc DESCRIPTION The vm_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 munmap(2), vm_map(9), vm_map_protect(9) AUTHORS
