1 files changed, 186 insertions, 92 deletions

diff --git a/contrib/bind/include/resolv.h b/contrib/bind/include/resolv.h
index 3bfd6bb638f5..30653134985c 100644
--- a/contrib/bind/include/resolv.h
+++ b/contrib/bind/include/resolv.h
@@ -32,7 +32,7 @@
  */
 
 /*
- * Portions Copyright (c) 1996 by Internet Software Consortium.
+ * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -50,7 +50,7 @@
 
 /*
  *	@(#)resolv.h	8.1 (Berkeley) 6/2/93
- *	$Id: resolv.h,v 8.12 1998/04/28 19:36:46 halley Exp $
+ *	$Id: resolv.h,v 8.29 1999/10/07 08:24:14 vixie Exp $
  */
 
 #ifndef _RESOLV_H_
@@ -73,16 +73,30 @@
  * is new enough to contain a certain feature.
  */
 
-#define	__RES	19960801
+#define	__RES	19991006
 
 /*
- * This used to be defined in res_query.c, now it's in herror.c.  It was
- * never extern'd by any *.h file before it was placed here.  herror.c is
- * part of libresolv.a even though it might make more sense in libnetdb.a
- * or even libnet.a.
+ * This used to be defined in res_query.c, now it's in herror.c.
+ * [XXX no it's not.  It's in irs/irs_data.c]
+ * It was
+ * never extern'd by any *.h file before it was placed here.  For thread
+ * aware programs, the last h_errno value set is stored in res->h_errno.
+ *
+ * XXX:	There doesn't seem to be a good reason for exposing RES_SET_H_ERRNO
+ *	(and __h_errno_set) to the public via <resolv.h>.
+ * XXX:	__h_errno_set is really part of IRS, not part of the resolver.
+ *	If somebody wants to build and use a resolver that doesn't use IRS,
+ *	what do they do?  Perhaps something like
+ *		#ifdef WANT_IRS
+ *		# define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x)
+ *		#else
+ *		# define RES_SET_H_ERRNO(r,x) (h_errno = (r)->res_h_errno = (x))
+ *		#endif
  */
 
-extern int h_errno;
+#define RES_SET_H_ERRNO(r,x) __h_errno_set(r,x)
+struct __res_state; /* forward */
+void __h_errno_set(struct __res_state *res, int err);
 
 /*
  * Resolver configuration file.
@@ -94,6 +108,29 @@ extern int h_errno;
 #define _PATH_RESCONF        "/etc/resolv.conf"
 #endif
 
+typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error }
+	res_sendhookact;
+
+typedef res_sendhookact (*res_send_qhook)__P((struct sockaddr_in * const *ns,
+					      const u_char **query,
+					      int *querylen,
+					      u_char *ans,
+					      int anssiz,
+					      int *resplen));
+
+typedef res_sendhookact (*res_send_rhook)__P((const struct sockaddr_in *ns,
+					      const u_char *query,
+					      int querylen,
+					      u_char *ans,
+					      int anssiz,
+					      int *resplen));
+
+struct res_sym {
+	int	number;		/* Identifying number, like T_MX */
+	char *	name;		/* Its symbolic name, like "MX" */
+	char *	humanname;	/* Its fun name, like "mail exchanger" */
+};
+
 /*
  * Global defines and variables for resolver stub.
  */
@@ -105,6 +142,9 @@ extern int h_errno;
 #define	RES_TIMEOUT		5	/* min. seconds between retries */
 #define	MAXRESOLVSORT		10	/* number of net to sort on */
 #define	RES_MAXNDOTS		15	/* should reflect bit field size */
+#define	RES_MAXRETRANS		30	/* only for resolv.conf/RES_OPTIONS */
+#define	RES_MAXRETRY		5	/* only for resolv.conf/RES_OPTIONS */
+#define	RES_DFLRETRY		2	/* Default #/tries. */
 
 struct __res_state {
 	int	retrans;	 	/* retransmition time interval */
@@ -125,9 +165,25 @@ struct __res_state {
 		struct in_addr	addr;
 		u_int32_t	mask;
 	} sort_list[MAXRESOLVSORT];
-	char	pad[72];		/* On an i386 this means 512b total. */
+	res_send_qhook qhook;		/* query hook */
+	res_send_rhook rhook;		/* response hook */
+	int	res_h_errno;		/* last one set for this context */
+	int	_sock;			/* PRIVATE: for res_send i/o */
+	u_int	_flags;			/* PRIVATE: see below */
+	char	pad[52];		/* On an i386 this means 512b total. */
 };
 
+typedef struct __res_state *res_state;
+
+/*
+ * Resolver flags (used to be discrete per-module statics ints).
+ */
+#define	RES_F_VC	0x00000001	/* socket is TCP */
+#define	RES_F_CONN	0x00000002	/* socket is connected */
+
+/* res_findzonecut() options */
+#define	RES_EXHAUSTIVE	0x00000001	/* always do all queries */
+
 /*
  * Resolver options (keep these in synch with res_debug.c, please)
  */
@@ -145,6 +201,9 @@ struct __res_state {
 #define	RES_INSECURE2	0x00000800	/* type 2 security disabled */
 #define	RES_NOALIASES	0x00001000	/* shuts off HOSTALIASES feature */
 #define	RES_USE_INET6	0x00002000	/* use/map IPv6 in gethostbyname() */
+#define RES_ROTATE	0x00004000	/* rotate ns list after each query */
+#define	RES_NOCHECKNAME	0x00008000	/* do not check names for sanity. */
+#define	RES_KEEPTSIG	0x00010000	/* do not strip TSIG records */
 
 #define RES_DEFAULT	(RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)
 
@@ -168,81 +227,110 @@ struct __res_state {
 #define RES_PRF_INIT	0x00004000
 /*			0x00008000	*/
 
-typedef enum { res_goahead, res_nextns, res_modified, res_done, res_error }
-	res_sendhookact;
-
-typedef res_sendhookact (*res_send_qhook)__P((struct sockaddr_in * const *ns,
-					      const u_char **query,
-					      int *querylen,
-					      u_char *ans,
-					      int anssiz,
-					      int *resplen));
+/* Things involving an internal (static) resolver context. */
+#ifdef _REENTRANT
+extern struct __res_state *__res_state(void);
+#define _res (*__res_state())
+#else
+#ifndef __BIND_NOSTATIC
+extern struct __res_state _res;
+#endif
+#endif
 
-typedef res_sendhookact (*res_send_rhook)__P((const struct sockaddr_in *ns,
-					      const u_char *query,
-					      int querylen,
-					      u_char *ans,
-					      int anssiz,
-					      int *resplen));
+#ifndef __BIND_NOSTATIC
+#define fp_nquery		__fp_nquery
+#define fp_query		__fp_query
+#define hostalias		__hostalias
+#define p_query			__p_query
+#define res_close		__res_close
+#define res_init		__res_init
+#define res_isourserver		__res_isourserver
+#define res_mkquery		__res_mkquery
+#define res_query		__res_query
+#define res_querydomain		__res_querydomain
+#define res_search		__res_search
+#define res_send		__res_send
+#define res_sendsigned		__res_sendsigned
 
-struct res_sym {
-	int	number;		/* Identifying number, like T_MX */
-	char *	name;		/* Its symbolic name, like "MX" */
-	char *	humanname;	/* Its fun name, like "mail exchanger" */
-};
+__BEGIN_DECLS
+void		fp_nquery __P((const u_char *, int, FILE *));
+void		fp_query __P((const u_char *, FILE *));
+const char *	hostalias __P((const char *));
+void		p_query __P((const u_char *));
+void		res_close __P((void));
+int		res_init __P((void));
+int		res_isourserver __P((const struct sockaddr_in *));
+int		res_mkquery __P((int, const char *, int, int, const u_char *,
+				 int, const u_char *, u_char *, int));
+int		res_query __P((const char *, int, int, u_char *, int));
+int		res_querydomain __P((const char *, const char *, int, int,
+				     u_char *, int));
+int		res_search __P((const char *, int, int, u_char *, int));
+int		res_send __P((const u_char *, int, u_char *, int));
+int		res_sendsigned __P((const u_char *, int, ns_tsig_key *,
+				    u_char *, int));
+__END_DECLS
+#endif
 
-extern struct __res_state _res;
+#if !defined(SHARED_LIBBIND) || defined(LIB)
+/*
+ * If libbind is a shared object (well, DLL anyway)
+ * these externs break the linker when resolv.h is 
+ * included by a lib client (like named)
+ * Make them go away if a client is including this
+ *
+ */
+extern const struct res_sym __p_key_syms[];
+extern const struct res_sym __p_cert_syms[];
 extern const struct res_sym __p_class_syms[];
 extern const struct res_sym __p_type_syms[];
+extern const struct res_sym __p_rcode_syms[];
+#endif /* SHARED_LIBBIND */
 
-#define res_hnok		__res_hnok
-#define res_ownok		__res_ownok
-#define res_mailok		__res_mailok
-#define res_dnok		__res_dnok
-#define	sym_ston		__sym_ston
-#define	sym_ntos		__sym_ntos
-#define	sym_ntop		__sym_ntop
 #define b64_ntop		__b64_ntop
-#define	b64_pton		__b64_pton
-#define loc_ntoa		__loc_ntoa
+#define b64_pton		__b64_pton
+#define dn_comp			__dn_comp
+#define dn_count_labels		__dn_count_labels
+#define dn_expand		__dn_expand
+#define dn_skipname		__dn_skipname
+#define fp_resstat		__fp_resstat
 #define loc_aton		__loc_aton
-#define	fp_resstat		__fp_resstat
-#define p_query			__p_query
-#define	dn_skipname		__dn_skipname
-#define	fp_resstat		__fp_resstat
-#define	fp_query		__fp_query
-#define	fp_nquery		__fp_nquery
-#define	hostalias		__hostalias
-#define	putlong			__putlong
-#define	putshort		__putshort
+#define loc_ntoa		__loc_ntoa
+#define p_cdname		__p_cdname
+#define p_cdnname		__p_cdnname
 #define p_class			__p_class
+#define p_fqname		__p_fqname
+#define p_fqnname		__p_fqnname
+#define p_option		__p_option
+#define p_secstodate		__p_secstodate
+#define p_section		__p_section
 #define p_time			__p_time
 #define p_type			__p_type
-#define p_query			__p_query
-#define	p_cdnname		__p_cdnname
-#define	p_section		__p_section
-#define	p_cdname		__p_cdname
-#define	p_fqnname		__p_fqnname
-#define	p_fqname		__p_fqname
-#define	p_option		__p_option
-#define	p_secstodate		__p_secstodate
-#define	dn_count_labels		__dn_count_labels
-#define	dn_comp			__dn_comp
-#define	dn_expand		__dn_expand
-#define	res_init		__res_init
-#define	res_randomid		__res_randomid
-#define	res_query		__res_query
-#define	res_search		__res_search
-#define	res_querydomain		__res_querydomain
-#define	res_mkquery		__res_mkquery
-#define	res_send		__res_send
-#define	res_isourserver		__res_isourserver
-#define	res_nameinquery		__res_nameinquery
-#define	res_queriesmatch	__res_queriesmatch
-#define res_close		__res_close
-#define res_mkupdate		__res_mkupdate
-#define res_mkupdrec		__res_mkupdrec
-#define res_freeupdrec		__res_freeupdrec
+#define p_rcode			__p_rcode
+#define putlong			__putlong
+#define putshort		__putshort
+#define res_dnok		__res_dnok
+#define res_findzonecut		__res_findzonecut
+#define res_hnok		__res_hnok
+#define res_hostalias		__res_hostalias
+#define res_mailok		__res_mailok
+#define res_nameinquery		__res_nameinquery
+#define res_nclose		__res_nclose
+#define res_ninit		__res_ninit
+#define res_nmkquery		__res_nmkquery
+#define res_npquery		__res_npquery
+#define res_nquery		__res_nquery
+#define res_nquerydomain	__res_nquerydomain
+#define res_nsearch		__res_nsearch
+#define res_nsend		__res_nsend
+#define res_nsendsigned		__res_nsendsigned
+#define res_nisourserver	__res_nisourserver
+#define res_ownok		__res_ownok
+#define res_queriesmatch	__res_queriesmatch
+#define res_randomid		__res_randomid
+#define sym_ntop		__sym_ntop
+#define sym_ntos		__sym_ntos
+#define sym_ston		__sym_ston
 __BEGIN_DECLS
 int		res_hnok __P((const char *));
 int		res_ownok __P((const char *));
@@ -256,16 +344,12 @@ int		b64_pton __P((char const *, u_char *, size_t));
 int		loc_aton __P((const char *ascii, u_char *binary));
 const char *	loc_ntoa __P((const u_char *binary, char *ascii));
 int		dn_skipname __P((const u_char *, const u_char *));
-void		fp_resstat __P((struct __res_state *, FILE *));
-void		fp_query __P((const u_char *, FILE *));
-void		fp_nquery __P((const u_char *, int, FILE *));
-const char *	hostalias __P((const char *));
 void		putlong __P((u_int32_t, u_char *));
 void		putshort __P((u_int16_t, u_char *));
 const char *	p_class __P((int));
 const char *	p_time __P((u_int32_t));
 const char *	p_type __P((int));
-void		p_query __P((const u_char *));
+const char *	p_rcode __P((int));
 const u_char *	p_cdnname __P((const u_char *, const u_char *, int, FILE *));
 const u_char *	p_cdname __P((const u_char *, const u_char *, FILE *));
 const u_char *	p_fqnname __P((const u_char *cp, const u_char *msg,
@@ -278,26 +362,36 @@ int		dn_comp __P((const char *, u_char *, int,
 			     u_char **, u_char **));
 int		dn_expand __P((const u_char *, const u_char *, const u_char *,
 			       char *, int));
-int		res_init __P((void));
 u_int		res_randomid __P((void));
-int		res_query __P((const char *, int, int, u_char *, int));
-int		res_search __P((const char *, int, int, u_char *, int));
-int		res_querydomain __P((const char *, const char *, int, int,
-				     u_char *, int));
-int		res_mkquery __P((int, const char *, int, int, const u_char *,
-				 int, const u_char *, u_char *, int));
-int		res_send __P((const u_char *, int, u_char *, int));
-int		res_isourserver __P((const struct sockaddr_in *));
 int		res_nameinquery __P((const char *, int, int,
 				     const u_char *, const u_char *));
 int		res_queriesmatch __P((const u_char *, const u_char *,
 				      const u_char *, const u_char *));
-void		res_close __P((void));
 const char *	p_section __P((int section, int opcode));
-int		res_update __P((ns_updrec *));
-int		res_mkupdate __P((ns_updrec *, u_char *, int));
-ns_updrec *	res_mkupdrec __P((int, const char *, u_int, u_int, u_long));
-void		res_freeupdrec __P((ns_updrec *));
+/* Things involving a resolver context. */
+int		res_ninit __P((res_state));
+int		res_nisourserver __P((const res_state,
+				      const struct sockaddr_in *));
+void		fp_resstat __P((const res_state, FILE *));
+void		res_npquery __P((const res_state, const u_char *, int, FILE *));
+const char *	res_hostalias __P((const res_state, const char *,
+				   char *, size_t));
+int		res_nquery __P((res_state,
+				const char *, int, int, u_char *, int));
+int		res_nsearch __P((res_state, const char *, int,
+				 int, u_char *, int));
+int		res_nquerydomain __P((res_state,
+				      const char *, const char *, int, int,
+				      u_char *, int));
+int		res_nmkquery __P((res_state,
+				  int, const char *, int, int, const u_char *,
+				  int, const u_char *, u_char *, int));
+int		res_nsend __P((res_state, const u_char *, int, u_char *, int));
+int		res_nsendsigned __P((res_state, const u_char *, int,
+				     ns_tsig_key *, u_char *, int));
+int		res_findzonecut __P((res_state, const char *, ns_class, int,
+				     char *, size_t, struct in_addr *, int));
+void		res_nclose __P((res_state));
 __END_DECLS
 
 #endif /* !_RESOLV_H_ */