CVS log for src/common/include/prop/prop_data.h

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Improvements to the problib(3) API:

==> Provide a much more complete set of setters and getters for different
    value types in the prop_array_util(3) and prop_dictionary_util(3)
    functions.

==> Overhaul the prop_data(3), prop_number(3), and prop_string(3) APIs
    to be easier to use and less awkwardly named,  Deprecate the old
    awkward names, and produce link-time warnings when they are referenced.

==> Deprecate mutable prop_data(3) and prop_string(3) objects.  The old
    APIs that support them still exist, but will now produce link-time
    warnings when used.

==> When the new prop_string(3) API is used, strings are internally
    de-duplicated as a memory footprint optimization.

==> Provide a rich set of bounds-checked gettter functions in and a
    corresponding set of convenience setters in the prop_number(3) API.

==> Add a new prop_bool_value(3) function that is equivalent to
    prop_bool_true(3), but aligned with the new "value" routines in
    prop_data(3), prop_string(3), and prop_number(3).

Ooops, restore accidently removed files from merge mishap

Sync with HEAD

sync with head.

Remove clause 3 and 4 from TNF licenses

Catch up on netbsd-4 as of a few days ago.

Pull up following revision(s) (requested by joerg in ticket #904):
	sbin/veriexecctl/veriexecctl.c: revision 1.29 (via patch)
	common/lib/libprop/prop_string.c: revision 1.9 (via patch)
	distrib/sets/lists/comp/mi: revision 1.1063 (via patch)
	common/lib/libprop/prop_kern.c: revision 1.8 (via patch)
	common/include/prop/prop_string.h: revision 1.2 (via patch)
	common/include/prop/prop_ingest.h: revision 1.2 (via patch)
	usr.sbin/btdevctl/btdevctl.c: revision 1.5 (via patch)
	common/lib/libprop/prop_object_impl.h: revision 1.14 (via patch)
	common/lib/libprop/prop_rb.c: revision 1.7 (via patch)
	common/include/prop/prop_array.h: revision 1.5 (via patch)
	common/lib/libprop/prop_stack.h: revision 1.1 (via patch)
	common/lib/libprop/prop_object_impl.h: revision 1.16 (via patch)
	common/lib/libprop/prop_number.3: revision 1.7 (via patch)
	common/lib/libprop/prop_stack.h: revision 1.2 (via patch)
	common/lib/libprop/prop_stack.c: revision 1.1 (via patch)
	common/lib/libprop/prop_object_impl.h: revision 1.17 (via patch)
	common/lib/libprop/prop_dictionary_util.c: revision 1.2 (via patch)
	common/lib/libprop/prop_dictionary_util.3: revision 1.2 (via patch)
	common/lib/libprop/prop_dictionary.c: revision 1.18 (via patch)
	common/lib/libprop/prop_stack.c: revision 1.2 (via patch)
	common/lib/libprop/prop_object_impl.h: revision 1.18 (via patch)
	common/lib/libprop/prop_dictionary.c: revision 1.19 (via patch)
	common/include/prop/prop_bool.h: revision 1.3 (via patch)
	common/include/prop/prop_dictionary.h: revision 1.7 (via patch)
	common/include/prop/prop_data.h: revision 1.2 (via patch)
	sys/sys/dkio.h: revision 1.14 (via patch)
	usr.sbin/btdevctl/sdp.c: revision 1.4 (via patch)
	common/include/prop/Makefile: revision 1.3 (via patch)
	common/include/prop/prop_number.h: revision 1.5 (via patch)
	common/lib/libprop/prop_object.c: revision 1.14 (via patch)
	common/lib/libprop/prop_object.c: revision 1.15 (via patch)
	common/lib/libprop/prop_object.c: revision 1.16 (via patch)
	common/lib/libprop/prop_bool.3: revision 1.3 (via patch)
	common/lib/libprop/prop_data.3: revision 1.4 (via patch)
	common/lib/libprop/prop_object.3: revision 1.6 (via patch)
	common/lib/libprop/prop_data.c: revision 1.7 (via patch)
	common/lib/libprop/prop_data.c: revision 1.8 (via patch)
	common/lib/libprop/prop_data.c: revision 1.9 (via patch)
	common/lib/libprop/prop_dictionary.c: revision 1.20 (via patch)
	usr.sbin/btdevctl/print.c: revision 1.9 (via patch)
	sbin/veriexecctl/veriexecctl_parse.y: revision 1.22 (via patch)
	common/lib/libprop/prop_number.c: revision 1.12 (via patch)
	common/include/prop/proplib.h: revision 1.5 (via patch)
	common/lib/libprop/prop_number.c: revision 1.13 (via patch)
	common/lib/libprop/prop_number.c: revision 1.14 (via patch)
	common/include/prop/prop_object.h: revision 1.5 (via patch)
	common/lib/libprop/prop_array.3: revision 1.5 (via patch)
	common/include/prop/prop_object.h: revision 1.6 (via patch)
	common/lib/libprop/prop_string.3: revision 1.4 (via patch)
	common/lib/libprop/prop_bool.c: revision 1.10 (via patch)
	common/lib/libprop/Makefile.inc: revision 1.6 (via patch)
	common/lib/libprop/prop_ingest.c: revision 1.2 (via patch)
	common/lib/libprop/prop_bool.c: revision 1.11 (via patch)
	common/lib/libprop/prop_array.c: revision 1.10 (via patch)
	common/lib/libprop/prop_ingest.3: revision 1.3 (via patch)
	common/lib/libprop/prop_bool.c: revision 1.12 (via patch)
	common/lib/libprop/prop_array.c: revision 1.11 (via patch)
	common/lib/libprop/prop_string.c: revision 1.7 (via patch)
	common/lib/libprop/prop_dictionary.3: revision 1.8 (via patch)
	common/lib/libprop/prop_array.c: revision 1.9 (via patch)
	usr.sbin/btdevctl/db.c: revision 1.4 (via patch)
	common/lib/libprop/prop_string.c: revision 1.8 (via patch)
	common/include/prop/plistref.h: revision 1.1 (via patch)
Consider '\r' to be white space. Discussed with and also kept as local
change by freza. With this change, DOS style line endings work.

boolean_t -> bool
TRUE -> true
FALSE -> false

libprop is currently using a recursive parser. While this is fine for
userland, deeply nested arrays and dictionaries can easily overflow
the kernel stack and thereby force a panic.

Fix the internalizer and prop_object_release to use a separate call
stack and alter the dictionary and array handling to not recurse on
the C stack. The default stack has an inline depth of 16 elements,
which should keep the overhead reasonable.

This issue was found by Pavel Cahyna and Jachym Holecek.

Additionally add a limit for prop_object_copyin_ioctl to prevent user
programs from temporary allocating unbound amount of kernel memory.

Allow malloc to fail so that tight loops of userland processes can't
force panics by exhausting the kernel map.

Tested with the sample exploit of Jachym, his test suite and reviewed
by himself (initial patch), Christos Zoulas and Jason Thorpe.
struct plistref does not reference other proplib data types, so split it
in its own header file to be included by dkio.h. Fixes breakage due to
pollution from proplib.h in programs which include ioctl.h. Tested and OK
by dogcow@.

Attempt at fixing build failures after proplib was converted to bool:
FALSE -> false, TRUE -> true, boolean_t -> bool, int -> bool when
appropriate, include stdbool.h . proplib.h no longer provides boolean_t,
so it is necessary to change to bool.
From Tom Spindler (dogcow@).

Avoid using unbound amount of stack frames in prop_object_equal
by using a dynamic stack as well. Reorder arguments for the internalizer
as the iteration is always present and should go before possibly
NULL arguments.
Reviewed by mjf@ and adrianp@

boolean_t -> bool
TRUE -> true
FALSE -> false

Initial commit of proplib, a library for manipulating property lists and
converting to/from an XML external representation (based on Apple XML
property lists).  Works in the kernel and user space.