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vm_map_check_protection (9)
  • >> vm_map_check_protection (9) ( FreeBSD man: Ядро )

  • BSD mandoc
     

    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 Fo vm_map_check_protection Fa 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 Fa map allows the specified privilege Fa protection over the entire address range from Fa start to Fa 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_map9, vm_map_protect9  

    AUTHORS

    This manual page was written by An Bruce M Simpson Aq [email protected] .


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    IMPLEMENTATION NOTES
    RETURN VALUES
    SEE ALSO
    AUTHORS


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