legacy Directory Reference

Files
	aaa_ctx.c
	avp-legacy-bridge.c
	Projection between radcli_avp_list (radcli2.h) and VALUE_PAIR (radcli.h), split out of lib/avp.c because both directions need legacy VALUE_PAIR construction – radcli_value_pairs_to_avp_list() is called by lib/legacy/send.c's rc_send_server_ctx(); the reverse direction, radcli_avp_list_to_value_pairs(), is exercised directly by tests/avp-legacy.c. Both are internal only (declared in lib/includes.h), built entirely on radcli2.h's own public radcli_avp_list_new()/radcli_avp_add_bytes()/radcli_avp_list_free()/ iteration API plus legacy VALUE_PAIR construction – no private cross-library export needed for either.
	avpair.c
	buildreq.c
	compat.c
	One-line wrappers keeping every already-released, radcli.h-public rc_* symbol whose real implementation moved into libradcli2 physically defined in libradcli itself, under its original name.
	dict.c
	send.c