* Versions.def: Add GLIBC_2.9 to libresolv.

	* include/resolv.h: Remove hidden proto declarations for __ns_*
	functions.  Add them for __dn_count_labels and __p_secstodate.
	* include/arpa/nameser.h: Add a number of hidden proto declarations.
	Define ns_msg_getflags macro here.
	* resolv/res_debug.c: Add hidden definition for __dn_count_labels
	and __p_secstodate.
	* resolv/Versions: Export functions from <arpa/nameser.h> from
	libresolv in version GLIBC_2.9.
	* resolv/ns_name.c: Integrate changes from bind 9.5.0.  Add necessary
	hidden definitions.
	* resolv/ns_netint.c: Likewise.
	* resolv/ns_parse.c: Likewise.
	* resolv/ns_print.c: Likewise.
	* resolv/ns_samedomain.c: Likewise.
	* resolv/ns_ttl.c: Likewise.
	* resolv/arpa/nameser_compat.h: Likewise.
	* resolv/arpa/nameser.h: Likewise.  Remove macros which redirect
	function calls.
	* resolv/nss_dns/dns-canon.c (_nss_dns_getcanonname_r): Use __ns_get16
	instead of ns_get16.
	* resolv/nss_dns/dns-host.c (getanswer_r): Use __ns_get16 and
	__ns_get32 instead of ns_get16 and ns_get32 respectively.
	(gaih_getanswer_slice): Likewise.
	* resolv/Makefile (libresolv-routines): Add ns_date.
	* resolv/ns_date.c: New file.

2 files changed, 216 insertions, 240 deletions

diff --git a/resolv/arpa/nameser.h b/resolv/arpa/nameser.h
index a164221df4..7979b3d4dd 100644
--- a/resolv/arpa/nameser.h
+++ b/resolv/arpa/nameser.h
@@ -28,6 +28,7 @@
  */
 
 /*
+ * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
  * Copyright (c) 1996-1999 by Internet Software Consortium.
  *
  * Permission to use, copy, modify, and distribute this software for any
@@ -51,6 +52,8 @@
 #ifndef _ARPA_NAMESER_H_
 #define _ARPA_NAMESER_H_
 
+/*! \file */
+
 #define BIND_4_COMPAT
 
 #include <sys/param.h>
@@ -61,7 +64,7 @@
 #endif
 #include <sys/cdefs.h>
 
-/*
+/*%
  * Revision information.  This is the release date in YYYYMMDD format.
  * It can change every day so the right thing to do with it is use it
  * in preprocessor commands such as "#if (__NAMESER > 19931104)".  Do not
@@ -69,42 +72,41 @@
  * contains a new enough lib/nameser/ to support the feature you need.
  */
 
-#define __NAMESER	19991006	/* New interface version stamp. */
-
+#define __NAMESER	19991006	/*%< New interface version stamp. */
 /*
  * Define constants based on RFC 883, RFC 1034, RFC 1035
  */
-#define NS_PACKETSZ	512	/* maximum packet size */
-#define NS_MAXDNAME	1025	/* maximum domain name */
-#define NS_MAXCDNAME	255	/* maximum compressed domain name */
-#define NS_MAXLABEL	63	/* maximum length of domain label */
-#define NS_HFIXEDSZ	12	/* #/bytes of fixed data in header */
-#define NS_QFIXEDSZ	4	/* #/bytes of fixed data in query */
-#define NS_RRFIXEDSZ	10	/* #/bytes of fixed data in r record */
-#define NS_INT32SZ	4	/* #/bytes of data in a u_int32_t */
-#define NS_INT16SZ	2	/* #/bytes of data in a u_int16_t */
-#define NS_INT8SZ	1	/* #/bytes of data in a u_int8_t */
-#define NS_INADDRSZ	4	/* IPv4 T_A */
-#define NS_IN6ADDRSZ	16	/* IPv6 T_AAAA */
-#define NS_CMPRSFLGS	0xc0	/* Flag bits indicating name compression. */
-#define NS_DEFAULTPORT	53	/* For both TCP and UDP. */
-
+#define NS_PACKETSZ	512	/*%< default UDP packet size */
+#define NS_MAXDNAME	1025	/*%< maximum domain name */
+#define NS_MAXMSG	65535	/*%< maximum message size */
+#define NS_MAXCDNAME	255	/*%< maximum compressed domain name */
+#define NS_MAXLABEL	63	/*%< maximum length of domain label */
+#define NS_HFIXEDSZ	12	/*%< #/bytes of fixed data in header */
+#define NS_QFIXEDSZ	4	/*%< #/bytes of fixed data in query */
+#define NS_RRFIXEDSZ	10	/*%< #/bytes of fixed data in r record */
+#define NS_INT32SZ	4	/*%< #/bytes of data in a u_int32_t */
+#define NS_INT16SZ	2	/*%< #/bytes of data in a u_int16_t */
+#define NS_INT8SZ	1	/*%< #/bytes of data in a u_int8_t */
+#define NS_INADDRSZ	4	/*%< IPv4 T_A */
+#define NS_IN6ADDRSZ	16	/*%< IPv6 T_AAAA */
+#define NS_CMPRSFLGS	0xc0	/*%< Flag bits indicating name compression. */
+#define NS_DEFAULTPORT	53	/*%< For both TCP and UDP. */
 /*
  * These can be expanded with synonyms, just keep ns_parse.c:ns_parserecord()
  * in synch with it.
  */
 typedef enum __ns_sect {
-	ns_s_qd = 0,		/* Query: Question. */
-	ns_s_zn = 0,		/* Update: Zone. */
-	ns_s_an = 1,		/* Query: Answer. */
-	ns_s_pr = 1,		/* Update: Prerequisites. */
-	ns_s_ns = 2,		/* Query: Name servers. */
-	ns_s_ud = 2,		/* Update: Update. */
-	ns_s_ar = 3,		/* Query|Update: Additional records. */
+	ns_s_qd = 0,		/*%< Query: Question. */
+	ns_s_zn = 0,		/*%< Update: Zone. */
+	ns_s_an = 1,		/*%< Query: Answer. */
+	ns_s_pr = 1,		/*%< Update: Prerequisites. */
+	ns_s_ns = 2,		/*%< Query: Name servers. */
+	ns_s_ud = 2,		/*%< Update: Update. */
+	ns_s_ar = 3,		/*%< Query|Update: Additional records. */
 	ns_s_max = 4
 } ns_sect;
 
-/*
+/*%
  * This is a message handle.  It is caller allocated and has no dynamic data.
  * This structure is intended to be opaque to all but ns_parse.c, thus the
  * leading _'s on the member names.  Use the accessor functions, not the _'s.
@@ -115,25 +117,22 @@ typedef struct __ns_msg {
 	const u_char	*_sections[ns_s_max];
 	ns_sect		_sect;
 	int		_rrnum;
-	const u_char	*_ptr;
+	const u_char	*_msg_ptr;
 } ns_msg;
 
 /* Private data structure - do not use from outside library. */
 struct _ns_flagdata {  int mask, shift;  };
-extern struct _ns_flagdata _ns_flagdata[];
+extern const struct _ns_flagdata _ns_flagdata[];
 
 /* Accessor macros - this is part of the public interface. */
-#define ns_msg_getflag(handle, flag) ( \
-			((handle)._flags & _ns_flagdata[flag].mask) \
-			 >> _ns_flagdata[flag].shift \
-			)
+
 #define ns_msg_id(handle) ((handle)._id + 0)
 #define ns_msg_base(handle) ((handle)._msg + 0)
 #define ns_msg_end(handle) ((handle)._eom + 0)
 #define ns_msg_size(handle) ((handle)._eom - (handle)._msg)
 #define ns_msg_count(handle, section) ((handle)._counts[section] + 0)
 
-/*
+/*%
  * This is a parsed record.  It is caller allocated and has no dynamic data.
  */
 typedef	struct __ns_rr {
@@ -153,56 +152,58 @@ typedef	struct __ns_rr {
 #define ns_rr_rdlen(rr)	((rr).rdlength + 0)
 #define ns_rr_rdata(rr)	((rr).rdata + 0)
 
-/*
+/*%
  * These don't have to be in the same order as in the packet flags word,
  * and they can even overlap in some cases, but they will need to be kept
  * in synch with ns_parse.c:ns_flagdata[].
  */
 typedef enum __ns_flag {
-	ns_f_qr,		/* Question/Response. */
-	ns_f_opcode,		/* Operation code. */
-	ns_f_aa,		/* Authoritative Answer. */
-	ns_f_tc,		/* Truncation occurred. */
-	ns_f_rd,		/* Recursion Desired. */
-	ns_f_ra,		/* Recursion Available. */
-	ns_f_z,			/* MBZ. */
-	ns_f_ad,		/* Authentic Data (DNSSEC). */
-	ns_f_cd,		/* Checking Disabled (DNSSEC). */
-	ns_f_rcode,		/* Response code. */
+	ns_f_qr,		/*%< Question/Response. */
+	ns_f_opcode,		/*%< Operation code. */
+	ns_f_aa,		/*%< Authoritative Answer. */
+	ns_f_tc,		/*%< Truncation occurred. */
+	ns_f_rd,		/*%< Recursion Desired. */
+	ns_f_ra,		/*%< Recursion Available. */
+	ns_f_z,			/*%< MBZ. */
+	ns_f_ad,		/*%< Authentic Data (DNSSEC). */
+	ns_f_cd,		/*%< Checking Disabled (DNSSEC). */
+	ns_f_rcode,		/*%< Response code. */
 	ns_f_max
 } ns_flag;
 
-/*
+/*%
  * Currently defined opcodes.
  */
 typedef enum __ns_opcode {
-	ns_o_query = 0,		/* Standard query. */
-	ns_o_iquery = 1,	/* Inverse query (deprecated/unsupported). */
-	ns_o_status = 2,	/* Name server status query (unsupported). */
+	ns_o_query = 0,		/*%< Standard query. */
+	ns_o_iquery = 1,	/*%< Inverse query (deprecated/unsupported). */
+	ns_o_status = 2,	/*%< Name server status query (unsupported). */
 				/* Opcode 3 is undefined/reserved. */
-	ns_o_notify = 4,	/* Zone change notification. */
-	ns_o_update = 5,	/* Zone update message. */
+	ns_o_notify = 4,	/*%< Zone change notification. */
+	ns_o_update = 5,	/*%< Zone update message. */
 	ns_o_max = 6
 } ns_opcode;
 
-/*
+/*%
  * Currently defined response codes.
  */
 typedef	enum __ns_rcode {
-	ns_r_noerror = 0,	/* No error occurred. */
-	ns_r_formerr = 1,	/* Format error. */
-	ns_r_servfail = 2,	/* Server failure. */
-	ns_r_nxdomain = 3,	/* Name error. */
-	ns_r_notimpl = 4,	/* Unimplemented. */
-	ns_r_refused = 5,	/* Operation refused. */
+	ns_r_noerror = 0,	/*%< No error occurred. */
+	ns_r_formerr = 1,	/*%< Format error. */
+	ns_r_servfail = 2,	/*%< Server failure. */
+	ns_r_nxdomain = 3,	/*%< Name error. */
+	ns_r_notimpl = 4,	/*%< Unimplemented. */
+	ns_r_refused = 5,	/*%< Operation refused. */
 	/* these are for BIND_UPDATE */
-	ns_r_yxdomain = 6,	/* Name exists */
-	ns_r_yxrrset = 7,	/* RRset exists */
-	ns_r_nxrrset = 8,	/* RRset does not exist */
-	ns_r_notauth = 9,	/* Not authoritative for zone */
-	ns_r_notzone = 10,	/* Zone of record different from zone section */
+	ns_r_yxdomain = 6,	/*%< Name exists */
+	ns_r_yxrrset = 7,	/*%< RRset exists */
+	ns_r_nxrrset = 8,	/*%< RRset does not exist */
+	ns_r_notauth = 9,	/*%< Not authoritative for zone */
+	ns_r_notzone = 10,	/*%< Zone of record different from zone section */
 	ns_r_max = 11,
-	/* The following are TSIG extended errors */
+	/* The following are EDNS extended rcodes */
+	ns_r_badvers = 16,
+	/* The following are TSIG errors */
 	ns_r_badsig = 16,
 	ns_r_badkey = 17,
 	ns_r_badtime = 18
@@ -215,7 +216,7 @@ typedef enum __ns_update_operation {
 	ns_uop_max = 2
 } ns_update_operation;
 
-/*
+/*%
  * This structure is used for TSIG authenticated messages
  */
 struct ns_tsig_key {
@@ -225,7 +226,7 @@ struct ns_tsig_key {
 };
 typedef struct ns_tsig_key ns_tsig_key;
 
-/*
+/*%
  * This structure is used for TSIG authenticated TCP messages
  */
 struct ns_tcp_tsig_state {
@@ -245,59 +246,61 @@ typedef struct ns_tcp_tsig_state ns_tcp_tsig_state;
 #define NS_TSIG_ERROR_NO_SPACE -11
 #define NS_TSIG_ERROR_FORMERR -12
 
-/*
+/*%
  * Currently defined type values for resources and queries.
  */
 typedef enum __ns_type {
-	ns_t_invalid = 0,	/* Cookie. */
-	ns_t_a = 1,		/* Host address. */
-	ns_t_ns = 2,		/* Authoritative server. */
-	ns_t_md = 3,		/* Mail destination. */
-	ns_t_mf = 4,		/* Mail forwarder. */
-	ns_t_cname = 5,		/* Canonical name. */
-	ns_t_soa = 6,		/* Start of authority zone. */
-	ns_t_mb = 7,		/* Mailbox domain name. */
-	ns_t_mg = 8,		/* Mail group member. */
-	ns_t_mr = 9,		/* Mail rename name. */
-	ns_t_null = 10,		/* Null resource record. */
-	ns_t_wks = 11,		/* Well known service. */
-	ns_t_ptr = 12,		/* Domain name pointer. */
-	ns_t_hinfo = 13,	/* Host information. */
-	ns_t_minfo = 14,	/* Mailbox information. */
-	ns_t_mx = 15,		/* Mail routing information. */
-	ns_t_txt = 16,		/* Text strings. */
-	ns_t_rp = 17,		/* Responsible person. */
-	ns_t_afsdb = 18,	/* AFS cell database. */
-	ns_t_x25 = 19,		/* X_25 calling address. */
-	ns_t_isdn = 20,		/* ISDN calling address. */
-	ns_t_rt = 21,		/* Router. */
-	ns_t_nsap = 22,		/* NSAP address. */
-	ns_t_nsap_ptr = 23,	/* Reverse NSAP lookup (deprecated). */
-	ns_t_sig = 24,		/* Security signature. */
-	ns_t_key = 25,		/* Security key. */
-	ns_t_px = 26,		/* X.400 mail mapping. */
-	ns_t_gpos = 27,		/* Geographical position (withdrawn). */
-	ns_t_aaaa = 28,		/* Ip6 Address. */
-	ns_t_loc = 29,		/* Location Information. */
-	ns_t_nxt = 30,		/* Next domain (security). */
-	ns_t_eid = 31,		/* Endpoint identifier. */
-	ns_t_nimloc = 32,	/* Nimrod Locator. */
-	ns_t_srv = 33,		/* Server Selection. */
-	ns_t_atma = 34,		/* ATM Address */
-	ns_t_naptr = 35,	/* Naming Authority PoinTeR */
-	ns_t_kx = 36,		/* Key Exchange */
-	ns_t_cert = 37,		/* Certification record */
-	ns_t_a6 = 38,		/* IPv6 address (deprecated, use ns_t_aaaa) */
-	ns_t_dname = 39,	/* Non-terminal DNAME (for IPv6) */
-	ns_t_sink = 40,		/* Kitchen sink (experimentatl) */
-	ns_t_opt = 41,		/* EDNS0 option (meta-RR) */
-	ns_t_tsig = 250,	/* Transaction signature. */
-	ns_t_ixfr = 251,	/* Incremental zone transfer. */
-	ns_t_axfr = 252,	/* Transfer zone of authority. */
-	ns_t_mailb = 253,	/* Transfer mailbox records. */
-	ns_t_maila = 254,	/* Transfer mail agent records. */
-	ns_t_any = 255,		/* Wildcard match. */
-	ns_t_zxfr = 256,	/* BIND-specific, nonstandard. */
+	ns_t_invalid = 0,	/*%< Cookie. */
+	ns_t_a = 1,		/*%< Host address. */
+	ns_t_ns = 2,		/*%< Authoritative server. */
+	ns_t_md = 3,		/*%< Mail destination. */
+	ns_t_mf = 4,		/*%< Mail forwarder. */
+	ns_t_cname = 5,		/*%< Canonical name. */
+	ns_t_soa = 6,		/*%< Start of authority zone. */
+	ns_t_mb = 7,		/*%< Mailbox domain name. */
+	ns_t_mg = 8,		/*%< Mail group member. */
+	ns_t_mr = 9,		/*%< Mail rename name. */
+	ns_t_null = 10,		/*%< Null resource record. */
+	ns_t_wks = 11,		/*%< Well known service. */
+	ns_t_ptr = 12,		/*%< Domain name pointer. */
+	ns_t_hinfo = 13,	/*%< Host information. */
+	ns_t_minfo = 14,	/*%< Mailbox information. */
+	ns_t_mx = 15,		/*%< Mail routing information. */
+	ns_t_txt = 16,		/*%< Text strings. */
+	ns_t_rp = 17,		/*%< Responsible person. */
+	ns_t_afsdb = 18,	/*%< AFS cell database. */
+	ns_t_x25 = 19,		/*%< X_25 calling address. */
+	ns_t_isdn = 20,		/*%< ISDN calling address. */
+	ns_t_rt = 21,		/*%< Router. */
+	ns_t_nsap = 22,		/*%< NSAP address. */
+	ns_t_nsap_ptr = 23,	/*%< Reverse NSAP lookup (deprecated). */
+	ns_t_sig = 24,		/*%< Security signature. */
+	ns_t_key = 25,		/*%< Security key. */
+	ns_t_px = 26,		/*%< X.400 mail mapping. */
+	ns_t_gpos = 27,		/*%< Geographical position (withdrawn). */
+	ns_t_aaaa = 28,		/*%< Ip6 Address. */
+	ns_t_loc = 29,		/*%< Location Information. */
+	ns_t_nxt = 30,		/*%< Next domain (security). */
+	ns_t_eid = 31,		/*%< Endpoint identifier. */
+	ns_t_nimloc = 32,	/*%< Nimrod Locator. */
+	ns_t_srv = 33,		/*%< Server Selection. */
+	ns_t_atma = 34,		/*%< ATM Address */
+	ns_t_naptr = 35,	/*%< Naming Authority PoinTeR */
+	ns_t_kx = 36,		/*%< Key Exchange */
+	ns_t_cert = 37,		/*%< Certification record */
+	ns_t_a6 = 38,		/*%< IPv6 address (deprecated, use ns_t_aaaa) */
+	ns_t_dname = 39,	/*%< Non-terminal DNAME (for IPv6) */
+	ns_t_sink = 40,		/*%< Kitchen sink (experimentatl) */
+	ns_t_opt = 41,		/*%< EDNS0 option (meta-RR) */
+	ns_t_apl = 42,		/*%< Address prefix list (RFC3123) */
+	ns_t_tkey = 249,	/*%< Transaction key */
+	ns_t_tsig = 250,	/*%< Transaction signature. */
+	ns_t_ixfr = 251,	/*%< Incremental zone transfer. */
+	ns_t_axfr = 252,	/*%< Transfer zone of authority. */
+	ns_t_mailb = 253,	/*%< Transfer mailbox records. */
+	ns_t_maila = 254,	/*%< Transfer mail agent records. */
+	ns_t_any = 255,		/*%< Wildcard match. */
+	ns_t_zxfr = 256,	/*%< BIND-specific, nonstandard. */
 	ns_t_max = 65536
 } ns_type;
 
@@ -312,61 +315,61 @@ typedef enum __ns_type {
 #define ns_t_xfr_p(t) ((t) == ns_t_axfr || (t) == ns_t_ixfr || \
 		       (t) == ns_t_zxfr)
 
-/*
+/*%
  * Values for class field
  */
 typedef enum __ns_class {
-	ns_c_invalid = 0,	/* Cookie. */
-	ns_c_in = 1,		/* Internet. */
-	ns_c_2 = 2,		/* unallocated/unsupported. */
-	ns_c_chaos = 3,		/* MIT Chaos-net. */
-	ns_c_hs = 4,		/* MIT Hesiod. */
+	ns_c_invalid = 0,	/*%< Cookie. */
+	ns_c_in = 1,		/*%< Internet. */
+	ns_c_2 = 2,		/*%< unallocated/unsupported. */
+	ns_c_chaos = 3,		/*%< MIT Chaos-net. */
+	ns_c_hs = 4,		/*%< MIT Hesiod. */
 	/* Query class values which do not appear in resource records */
-	ns_c_none = 254,	/* for prereq. sections in update requests */
-	ns_c_any = 255,		/* Wildcard match. */
+	ns_c_none = 254,	/*%< for prereq. sections in update requests */
+	ns_c_any = 255,		/*%< Wildcard match. */
 	ns_c_max = 65536
 } ns_class;
 
 /* DNSSEC constants. */
 
 typedef enum __ns_key_types {
-	ns_kt_rsa = 1,		/* key type RSA/MD5 */
-	ns_kt_dh  = 2,		/* Diffie Hellman */
-	ns_kt_dsa = 3,		/* Digital Signature Standard (MANDATORY) */
-	ns_kt_private = 254	/* Private key type starts with OID */
+	ns_kt_rsa = 1,		/*%< key type RSA/MD5 */
+	ns_kt_dh  = 2,		/*%< Diffie Hellman */
+	ns_kt_dsa = 3,		/*%< Digital Signature Standard (MANDATORY) */
+	ns_kt_private = 254	/*%< Private key type starts with OID */
 } ns_key_types;
 
 typedef enum __ns_cert_types {
-	cert_t_pkix = 1,	/* PKIX (X.509v3) */
-	cert_t_spki = 2,	/* SPKI */
-	cert_t_pgp  = 3,	/* PGP */
-	cert_t_url  = 253,	/* URL private type */
-	cert_t_oid  = 254	/* OID private type */
+	cert_t_pkix = 1,	/*%< PKIX (X.509v3) */
+	cert_t_spki = 2,	/*%< SPKI */
+	cert_t_pgp  = 3,	/*%< PGP */
+	cert_t_url  = 253,	/*%< URL private type */
+	cert_t_oid  = 254	/*%< OID private type */
 } ns_cert_types;
 
 /* Flags field of the KEY RR rdata. */
-#define	NS_KEY_TYPEMASK		0xC000	/* Mask for "type" bits */
-#define	NS_KEY_TYPE_AUTH_CONF	0x0000	/* Key usable for both */
-#define	NS_KEY_TYPE_CONF_ONLY	0x8000	/* Key usable for confidentiality */
-#define	NS_KEY_TYPE_AUTH_ONLY	0x4000	/* Key usable for authentication */
-#define	NS_KEY_TYPE_NO_KEY	0xC000	/* No key usable for either; no key */
+#define	NS_KEY_TYPEMASK		0xC000	/*%< Mask for "type" bits */
+#define	NS_KEY_TYPE_AUTH_CONF	0x0000	/*%< Key usable for both */
+#define	NS_KEY_TYPE_CONF_ONLY	0x8000	/*%< Key usable for confidentiality */
+#define	NS_KEY_TYPE_AUTH_ONLY	0x4000	/*%< Key usable for authentication */
+#define	NS_KEY_TYPE_NO_KEY	0xC000	/*%< No key usable for either; no key */
 /* The type bits can also be interpreted independently, as single bits: */
-#define	NS_KEY_NO_AUTH		0x8000	/* Key unusable for authentication */
-#define	NS_KEY_NO_CONF		0x4000	/* Key unusable for confidentiality */
+#define	NS_KEY_NO_AUTH		0x8000	/*%< Key unusable for authentication */
+#define	NS_KEY_NO_CONF		0x4000	/*%< Key unusable for confidentiality */
 #define	NS_KEY_RESERVED2	0x2000	/* Security is *mandatory* if bit=0 */
-#define	NS_KEY_EXTENDED_FLAGS	0x1000	/* reserved - must be zero */
-#define	NS_KEY_RESERVED4	0x0800  /* reserved - must be zero */
-#define	NS_KEY_RESERVED5	0x0400  /* reserved - must be zero */
-#define	NS_KEY_NAME_TYPE	0x0300	/* these bits determine the type */
-#define	NS_KEY_NAME_USER	0x0000	/* key is assoc. with user */
-#define	NS_KEY_NAME_ENTITY	0x0200	/* key is assoc. with entity eg host */
-#define	NS_KEY_NAME_ZONE	0x0100	/* key is zone key */
-#define	NS_KEY_NAME_RESERVED	0x0300	/* reserved meaning */
-#define	NS_KEY_RESERVED8	0x0080  /* reserved - must be zero */
-#define	NS_KEY_RESERVED9	0x0040  /* reserved - must be zero */
-#define	NS_KEY_RESERVED10	0x0020  /* reserved - must be zero */
-#define	NS_KEY_RESERVED11	0x0010  /* reserved - must be zero */
-#define	NS_KEY_SIGNATORYMASK	0x000F	/* key can sign RR's of same name */
+#define	NS_KEY_EXTENDED_FLAGS	0x1000	/*%< reserved - must be zero */
+#define	NS_KEY_RESERVED4	0x0800  /*%< reserved - must be zero */
+#define	NS_KEY_RESERVED5	0x0400  /*%< reserved - must be zero */
+#define	NS_KEY_NAME_TYPE	0x0300	/*%< these bits determine the type */
+#define	NS_KEY_NAME_USER	0x0000	/*%< key is assoc. with user */
+#define	NS_KEY_NAME_ENTITY	0x0200	/*%< key is assoc. with entity eg host */
+#define	NS_KEY_NAME_ZONE	0x0100	/*%< key is zone key */
+#define	NS_KEY_NAME_RESERVED	0x0300	/*%< reserved meaning */
+#define	NS_KEY_RESERVED8	0x0080  /*%< reserved - must be zero */
+#define	NS_KEY_RESERVED9	0x0040  /*%< reserved - must be zero */
+#define	NS_KEY_RESERVED10	0x0020  /*%< reserved - must be zero */
+#define	NS_KEY_RESERVED11	0x0010  /*%< reserved - must be zero */
+#define	NS_KEY_SIGNATORYMASK	0x000F	/*%< key can sign RR's of same name */
 #define	NS_KEY_RESERVED_BITMASK ( NS_KEY_RESERVED2 | \
 				  NS_KEY_RESERVED4 | \
 				  NS_KEY_RESERVED5 | \
@@ -374,16 +377,14 @@ typedef enum __ns_cert_types {
 				  NS_KEY_RESERVED9 | \
 				  NS_KEY_RESERVED10 | \
 				  NS_KEY_RESERVED11 )
-#define NS_KEY_RESERVED_BITMASK2 0xFFFF /* no bits defined here */
-
+#define NS_KEY_RESERVED_BITMASK2 0xFFFF /*%< no bits defined here */
 /* The Algorithm field of the KEY and SIG RR's is an integer, {1..254} */
-#define	NS_ALG_MD5RSA		1	/* MD5 with RSA */
-#define	NS_ALG_DH               2	/* Diffie Hellman KEY */
-#define	NS_ALG_DSA              3	/* DSA KEY */
+#define	NS_ALG_MD5RSA		1	/*%< MD5 with RSA */
+#define	NS_ALG_DH               2	/*%< Diffie Hellman KEY */
+#define	NS_ALG_DSA              3	/*%< DSA KEY */
 #define	NS_ALG_DSS              NS_ALG_DSA
-#define	NS_ALG_EXPIRE_ONLY	253	/* No alg, no security */
-#define	NS_ALG_PRIVATE_OID	254	/* Key begins with OID giving alg */
-
+#define	NS_ALG_EXPIRE_ONLY	253	/*%< No alg, no security */
+#define	NS_ALG_PRIVATE_OID	254	/*%< Key begins with OID giving alg */
 /* Protocol values  */
 /* value 0 is reserved */
 #define NS_KEY_PROT_TLS         1
@@ -393,8 +394,8 @@ typedef enum __ns_cert_types {
 #define NS_KEY_PROT_ANY		255
 
 /* Signatures */
-#define	NS_MD5RSA_MIN_BITS	 512	/* Size of a mod or exp in bits */
-#define	NS_MD5RSA_MAX_BITS	2552
+#define	NS_MD5RSA_MIN_BITS	 512	/*%< Size of a mod or exp in bits */
+#define	NS_MD5RSA_MAX_BITS	4096
 	/* Total of binary mod and exp */
 #define	NS_MD5RSA_MAX_BYTES	((NS_MD5RSA_MAX_BITS+7/8)*2+3)
 	/* Max length of text sig block */
@@ -407,15 +408,14 @@ typedef enum __ns_cert_types {
 #define NS_DSA_MAX_BYTES        405
 
 /* Offsets into SIG record rdata to find various values */
-#define	NS_SIG_TYPE	0	/* Type flags */
-#define	NS_SIG_ALG	2	/* Algorithm */
-#define	NS_SIG_LABELS	3	/* How many labels in name */
-#define	NS_SIG_OTTL	4	/* Original TTL */
-#define	NS_SIG_EXPIR	8	/* Expiration time */
-#define	NS_SIG_SIGNED	12	/* Signature time */
-#define	NS_SIG_FOOT	16	/* Key footprint */
-#define	NS_SIG_SIGNER	18	/* Domain name of who signed it */
-
+#define	NS_SIG_TYPE	0	/*%< Type flags */
+#define	NS_SIG_ALG	2	/*%< Algorithm */
+#define	NS_SIG_LABELS	3	/*%< How many labels in name */
+#define	NS_SIG_OTTL	4	/*%< Original TTL */
+#define	NS_SIG_EXPIR	8	/*%< Expiration time */
+#define	NS_SIG_SIGNED	12	/*%< Signature time */
+#define	NS_SIG_FOOT	16	/*%< Key footprint */
+#define	NS_SIG_SIGNER	18	/*%< Domain name of who signed it */
 /* How RR types are represented as bit-flags in NXT records */
 #define	NS_NXT_BITS 8
 #define	NS_NXT_BIT_SET(  n,p) (p[(n)/NS_NXT_BITS] |=  (0x80>>((n)%NS_NXT_BITS)))
@@ -423,16 +423,17 @@ typedef enum __ns_cert_types {
 #define	NS_NXT_BIT_ISSET(n,p) (p[(n)/NS_NXT_BITS] &   (0x80>>((n)%NS_NXT_BITS)))
 #define NS_NXT_MAX 127
 
-/*
- * EDNS0 extended flags, host order.
+/*%
+ * EDNS0 extended flags and option codes, host order.
  */
 #define NS_OPT_DNSSEC_OK        0x8000U
+#define NS_OPT_NSID		3
 
-/*
+/*%
  * Inline versions of get/put short/long.  Pointer is advanced.
  */
 #define NS_GET16(s, cp) do { \
-	register u_char *t_cp = (u_char *)(cp); \
+	register const u_char *t_cp = (const u_char *)(cp); \
 	(s) = ((u_int16_t)t_cp[0] << 8) \
 	    | ((u_int16_t)t_cp[1]) \
 	    ; \
@@ -440,7 +441,7 @@ typedef enum __ns_cert_types {
 } while (0)
 
 #define NS_GET32(l, cp) do { \
-	register u_char *t_cp = (u_char *)(cp); \
+	register const u_char *t_cp = (const u_char *)(cp); \
 	(l) = ((u_int32_t)t_cp[0] << 24) \
 	    | ((u_int32_t)t_cp[1] << 16) \
 	    | ((u_int32_t)t_cp[2] << 8) \
@@ -467,43 +468,8 @@ typedef enum __ns_cert_types {
 	(cp) += NS_INT32SZ; \
 } while (0)
 
-/*
- * ANSI C identifier hiding for bind's lib/nameser.
- */
-#define ns_get16		__ns_get16
-#define ns_get32		__ns_get32
-#define ns_put16		__ns_put16
-#define ns_put32		__ns_put32
-#define ns_initparse		__ns_initparse
-#define ns_skiprr		__ns_skiprr
-#define ns_parserr		__ns_parserr
-#define	ns_sprintrr		__ns_sprintrr
-#define	ns_sprintrrf		__ns_sprintrrf
-#define	ns_format_ttl		__ns_format_ttl
-#define	ns_parse_ttl		__ns_parse_ttl
-#define ns_datetosecs		__ns_datetosecs
-#define	ns_name_ntol		__ns_name_ntol
-#define	ns_name_ntop		__ns_name_ntop
-#define	ns_name_pton		__ns_name_pton
-#define	ns_name_unpack		__ns_name_unpack
-#define	ns_name_pack		__ns_name_pack
-#define	ns_name_compress	__ns_name_compress
-#define	ns_name_uncompress	__ns_name_uncompress
-#define	ns_name_skip		__ns_name_skip
-#define	ns_name_rollback	__ns_name_rollback
-#define	ns_sign			__ns_sign
-#define	ns_sign_tcp		__ns_sign_tcp
-#define	ns_sign_tcp_init	__ns_sign_tcp_init
-#define ns_find_tsig		__ns_find_tsig
-#define	ns_verify		__ns_verify
-#define	ns_verify_tcp		__ns_verify_tcp
-#define	ns_verify_tcp_init	__ns_verify_tcp_init
-#define	ns_samedomain		__ns_samedomain
-#define	ns_subdomain		__ns_subdomain
-#define	ns_makecanon		__ns_makecanon
-#define	ns_samename		__ns_samename
-
 __BEGIN_DECLS
+int		ns_msg_getflag (ns_msg, int) __THROW;
 u_int		ns_get16 (const u_char *) __THROW;
 u_long		ns_get32 (const u_char *) __THROW;
 void		ns_put16 (u_int, u_char *) __THROW;
@@ -538,8 +504,14 @@ void		ns_name_rollback (const u_char *, const u_char **,
 				  const u_char **) __THROW;
 int		ns_sign (u_char *, int *, int, int, void *,
 			 const u_char *, int, u_char *, int *, time_t) __THROW;
+int		ns_sign2 (u_char *, int *, int, int, void *,
+			  const u_char *, int, u_char *, int *, time_t,
+			  u_char **, u_char **) __THROW;
 int		ns_sign_tcp (u_char *, int *, int, int,
 			     ns_tcp_tsig_state *, int) __THROW;
+int		ns_sign_tcp2 (u_char *, int *, int, int,
+			      ns_tcp_tsig_state *, int,
+			      u_char **, u_char **) __THROW;
 int		ns_sign_tcp_init (void *, const u_char *, int,
 				  ns_tcp_tsig_state *) __THROW;
 u_char		*ns_find_tsig (u_char *, u_char *) __THROW;
@@ -560,3 +532,4 @@ __END_DECLS
 #endif
 
 #endif /* !_ARPA_NAMESER_H_ */
+/*! \file */
diff --git a/resolv/arpa/nameser_compat.h b/resolv/arpa/nameser_compat.h
index 8bc6e913dc..d59c9e41b3 100644
--- a/resolv/arpa/nameser_compat.h
+++ b/resolv/arpa/nameser_compat.h
@@ -26,7 +26,7 @@
  * SUCH DAMAGE.
  */
 
-/*
+/*%
  *      from nameser.h	8.1 (Berkeley) 6/2/93
  *	$BINDId: nameser_compat.h,v 8.11 1999/01/02 08:00:58 vixie Exp $
  */
@@ -34,11 +34,11 @@
 #ifndef _ARPA_NAMESER_COMPAT_
 #define	_ARPA_NAMESER_COMPAT_
 
-#define	__BIND		19950621	/* (DEAD) interface version stamp. */
+#define	__BIND		19950621	/*%< (DEAD) interface version stamp. */
 
 #include <endian.h>
 
-/*
+/*%
  * Structure for query header.  The order of the fields is machine- and
  * compiler-dependent, depending on the byte/bit order and the layout
  * of bit fields.  We use bit fields only in int variables, as this
@@ -46,40 +46,40 @@
  */
 
 typedef struct {
-	unsigned	id :16;		/* query identification number */
+	unsigned	id :16;		/*%< query identification number */
 #if BYTE_ORDER == BIG_ENDIAN
 			/* fields in third byte */
-	unsigned	qr: 1;		/* response flag */
-	unsigned	opcode: 4;	/* purpose of message */
-	unsigned	aa: 1;		/* authoritive answer */
-	unsigned	tc: 1;		/* truncated message */
-	unsigned	rd: 1;		/* recursion desired */
+	unsigned	qr: 1;		/*%< response flag */
+	unsigned	opcode: 4;	/*%< purpose of message */
+	unsigned	aa: 1;		/*%< authoritive answer */
+	unsigned	tc: 1;		/*%< truncated message */
+	unsigned	rd: 1;		/*%< recursion desired */
 			/* fields in fourth byte */
-	unsigned	ra: 1;		/* recursion available */
-	unsigned	unused :1;	/* unused bits (MBZ as of 4.9.3a3) */
-	unsigned	ad: 1;		/* authentic data from named */
-	unsigned	cd: 1;		/* checking disabled by resolver */
-	unsigned	rcode :4;	/* response code */
+	unsigned	ra: 1;		/*%< recursion available */
+	unsigned	unused :1;	/*%< unused bits (MBZ as of 4.9.3a3) */
+	unsigned	ad: 1;		/*%< authentic data from named */
+	unsigned	cd: 1;		/*%< checking disabled by resolver */
+	unsigned	rcode :4;	/*%< response code */
 #endif
 #if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN
 			/* fields in third byte */
-	unsigned	rd :1;		/* recursion desired */
-	unsigned	tc :1;		/* truncated message */
-	unsigned	aa :1;		/* authoritive answer */
-	unsigned	opcode :4;	/* purpose of message */
-	unsigned	qr :1;		/* response flag */
+	unsigned	rd :1;		/*%< recursion desired */
+	unsigned	tc :1;		/*%< truncated message */
+	unsigned	aa :1;		/*%< authoritive answer */
+	unsigned	opcode :4;	/*%< purpose of message */
+	unsigned	qr :1;		/*%< response flag */
 			/* fields in fourth byte */
-	unsigned	rcode :4;	/* response code */
-	unsigned	cd: 1;		/* checking disabled by resolver */
-	unsigned	ad: 1;		/* authentic data from named */
-	unsigned	unused :1;	/* unused bits (MBZ as of 4.9.3a3) */
-	unsigned	ra :1;		/* recursion available */
+	unsigned	rcode :4;	/*%< response code */
+	unsigned	cd: 1;		/*%< checking disabled by resolver */
+	unsigned	ad: 1;		/*%< authentic data from named */
+	unsigned	unused :1;	/*%< unused bits (MBZ as of 4.9.3a3) */
+	unsigned	ra :1;		/*%< recursion available */
 #endif
 			/* remaining bytes */
-	unsigned	qdcount :16;	/* number of question entries */
-	unsigned	ancount :16;	/* number of answer entries */
-	unsigned	nscount :16;	/* number of authority entries */
-	unsigned	arcount :16;	/* number of resource entries */
+	unsigned	qdcount :16;	/*%< number of question entries */
+	unsigned	ancount :16;	/*%< number of answer entries */
+	unsigned	nscount :16;	/*%< number of authority entries */
+	unsigned	arcount :16;	/*%< number of resource entries */
 } HEADER;
 
 #define PACKETSZ	NS_PACKETSZ
@@ -91,6 +91,7 @@ typedef struct {
 #define RRFIXEDSZ	NS_RRFIXEDSZ
 #define	INT32SZ		NS_INT32SZ
 #define	INT16SZ		NS_INT16SZ
+#define INT8SZ		NS_INT8SZ
 #define	INADDRSZ	NS_INADDRSZ
 #define	IN6ADDRSZ	NS_IN6ADDRSZ
 #define	INDIR_MASK	NS_CMPRSFLGS
@@ -161,6 +162,7 @@ typedef struct {
 #define	T_SRV		ns_t_srv
 #define T_ATMA		ns_t_atma
 #define T_NAPTR		ns_t_naptr
+#define T_A6		ns_t_a6
 #define T_DNAME		ns_t_dname
 #define	T_TSIG		ns_t_tsig
 #define	T_IXFR		ns_t_ixfr
@@ -182,3 +184,4 @@ typedef struct {
 #define	PUTLONG			NS_PUT32
 
 #endif /* _ARPA_NAMESER_COMPAT_ */
+/*! \file */