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VM_MAP_CHECK_PROTEC... FreeBSD Kernel Developer's ManualVM_MAP_CHECK_PROTEC...

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
     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
     This manual page was written by Bruce M Simpson <bms@spc.org>.

FreeBSD	10.1			 July 19, 2003			  FreeBSD 10.1

NAME | SYNOPSIS | DESCRIPTION | IMPLEMENTATION NOTES | RETURN VALUES | SEE ALSO | AUTHORS

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