-int encode_header(struct resolv_header * h, unsigned char * dest, int maxlen);
-int decode_header(unsigned char * data, struct resolv_header * h);
-int encode_dotted(const char * dotted, unsigned char * dest, int maxlen);
-int decode_dotted(const unsigned char * message, int offset,
- char * dest, int maxlen);
-int length_dotted(const unsigned char * message, int offset);
-int encode_question(struct resolv_question * q,
- unsigned char * dest, int maxlen);
-int decode_question(unsigned char * message, int offset,
- struct resolv_question * q);
-int length_question(unsigned char * message, int offset);
-int encode_answer(struct resolv_answer * a,
- unsigned char * dest, int maxlen);
-int decode_answer(unsigned char * message, int offset,
- struct resolv_answer * a);
-const char * resolve_name(const char * name, int mailbox);
-
-int encode_packet(struct resolv_header * h,
- struct resolv_question ** q,
- struct resolv_answer ** an,
- struct resolv_answer ** ns,
- struct resolv_answer ** ar,
- unsigned char * dest, int maxlen);
-int decode_packet(unsigned char * data, struct resolv_header * h);
-
-int dns_lookup(const char * name, int type, int nscount, const char ** nsip,
- unsigned char ** outpacket, struct resolv_answer * a);
-
-int resolve_address(const char * address,
- int nscount, const char ** nsip,
- struct in_addr * in);
-
-int resolve_mailbox(const char * address,
- int nscount, const char ** nsip,
- struct in_addr * in);
-
-extern int open_nameservers(void);
-extern void close_nameservers(void);
-
-extern struct hostent * gethostbyname(const char * name);
-extern struct hostent * gethostbyaddr(const char * addr, int len, int type);
-
-#endif /*_RESOLV_H_*/
+/*
+ * 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)
+ * (which of these do we really implement??)
+ */
+#define RES_INIT 0x00000001 /* address initialized */
+#define RES_DEBUG 0x00000002 /* print debug messages */
+#define RES_AAONLY 0x00000004 /* authoritative answers only (!IMPL)*/
+#define RES_USEVC 0x00000008 /* use virtual circuit */
+#define RES_PRIMARY 0x00000010 /* query primary server only (!IMPL) */
+#define RES_IGNTC 0x00000020 /* ignore trucation errors */
+#define RES_RECURSE 0x00000040 /* recursion desired */
+#define RES_DEFNAMES 0x00000080 /* use default domain name */
+#define RES_STAYOPEN 0x00000100 /* Keep TCP socket open */
+#define RES_DNSRCH 0x00000200 /* search up local domain tree */
+#define RES_INSECURE1 0x00000400 /* type 1 security disabled */
+#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_BLAST 0x00020000 /* blast all recursive servers */
+#if 0
+#define RES_USEBSTRING 0x00040000 /* IPv6 reverse lookup with byte
+ strings */
+#define RES_NOIP6DOTINT 0x00080000 /* Do not use .ip6.int in IPv6
+ reverse lookup */
+
+#define RES_DEFAULT (RES_RECURSE|RES_DEFNAMES|RES_DNSRCH|RES_NOIP6DOTINT)
+#else
+#define RES_DEFAULT (RES_RECURSE|RES_DEFNAMES|RES_DNSRCH)
+#endif
+
+/*
+ * Resolver "pfcode" values. Used by dig.
+ */
+#define RES_PRF_STATS 0x00000001
+#define RES_PRF_UPDATE 0x00000002
+#define RES_PRF_CLASS 0x00000004
+#define RES_PRF_CMD 0x00000008
+#define RES_PRF_QUES 0x00000010
+#define RES_PRF_ANS 0x00000020
+#define RES_PRF_AUTH 0x00000040
+#define RES_PRF_ADD 0x00000080
+#define RES_PRF_HEAD1 0x00000100
+#define RES_PRF_HEAD2 0x00000200
+#define RES_PRF_TTLID 0x00000400
+#define RES_PRF_HEADX 0x00000800
+#define RES_PRF_QUERY 0x00001000
+#define RES_PRF_REPLY 0x00002000
+#define RES_PRF_INIT 0x00004000
+/* 0x00008000 */
+
+/* Things involving an internal (static) resolver context. */
+__BEGIN_DECLS
+extern struct __res_state *__res_state(void) __attribute__ ((__const__));
+__END_DECLS
+#define _res (*__res_state())
+
+#if 0
+#define fp_nquery __fp_nquery
+#define fp_query __fp_query
+#define hostalias __hostalias
+#define p_query __p_query
+#endif
+#define res_close __res_close
+#define res_init __res_init
+#if 0
+#define res_isourserver __res_isourserver
+#endif
+#define res_mkquery __res_mkquery
+#define res_query __res_query
+#define res_querydomain __res_querydomain
+#define res_search __res_search
+#if 0
+#define res_send __res_send
+#endif
+
+__BEGIN_DECLS
+#if 0
+void fp_nquery (const u_char *, int, FILE *) __THROW;
+void fp_query (const u_char *, FILE *) __THROW;
+const char * hostalias (const char *) __THROW;
+void p_query (const u_char *) __THROW;
+#endif
+#ifdef __UCLIBC_HAS_BSD_RES_CLOSE__
+void res_close (void) __THROW;
+#endif
+int res_init (void) __THROW;
+libc_hidden_proto(res_init)
+#if 0
+int res_isourserver (const struct sockaddr_in *) __THROW;
+#endif
+int res_mkquery (int, const char *, int, int, const u_char *,
+ int, const u_char *, u_char *, int) __THROW;
+int res_query (const char *, int, int, u_char *, int) __THROW;
+libc_hidden_proto(res_query)
+int res_querydomain (const char *, const char *, int, int,
+ u_char *, int) __THROW;
+libc_hidden_proto(res_querydomain)
+int res_search (const char *, int, int, u_char *, int) __THROW;
+#if 0
+int res_send (const u_char *, int, u_char *, int) __THROW;
+#endif
+__END_DECLS
+
+#if 0
+#define b64_ntop __b64_ntop
+#define b64_pton __b64_pton
+#define dn_count_labels __dn_count_labels
+#endif
+#define dn_comp __dn_comp
+#define dn_expand __dn_expand
+#define dn_skipname __dn_skipname
+#define res_ninit __res_ninit
+#define res_nclose __res_nclose
+#if 0
+#define fp_resstat __fp_resstat
+#define loc_aton __loc_aton
+#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_rcode __p_rcode
+#define putlong __putlong
+#define putshort __putshort
+#define res_dnok __res_dnok
+#define res_hnok __res_hnok
+#define res_hostalias __res_hostalias
+#define res_mailok __res_mailok
+#define res_nameinquery __res_nameinquery
+#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_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
+#endif
+__BEGIN_DECLS
+#if 0
+int res_hnok (const char *) __THROW;
+int res_ownok (const char *) __THROW;
+int res_mailok (const char *) __THROW;
+int res_dnok (const char *) __THROW;
+int sym_ston (const struct res_sym *, const char *, int *) __THROW;
+const char * sym_ntos (const struct res_sym *, int, int *) __THROW;
+const char * sym_ntop (const struct res_sym *, int, int *) __THROW;
+int b64_ntop (u_char const *, size_t, char *, size_t) __THROW;
+int b64_pton (char const *, u_char *, size_t) __THROW;
+int loc_aton (const char *ascii, u_char *binary) __THROW;
+const char * loc_ntoa (const u_char *binary, char *ascii) __THROW;
+void putlong (u_int32_t, u_char *) __THROW;
+void putshort (u_int16_t, u_char *) __THROW;
+const char * p_class (int) __THROW;
+const char * p_time (u_int32_t) __THROW;
+const char * p_type (int) __THROW;
+const char * p_rcode (int) __THROW;
+const u_char * p_cdnname (const u_char *, const u_char *, int, FILE *)
+ __THROW;
+const u_char * p_cdname (const u_char *, const u_char *, FILE *) __THROW;
+const u_char * p_fqnname (const u_char *cp, const u_char *msg,
+ int, char *, int) __THROW;
+const u_char * p_fqname (const u_char *, const u_char *, FILE *) __THROW;
+const char * p_option (u_long option) __THROW;
+char * p_secstodate (u_long) __THROW;
+int dn_count_labels (const char *) __THROW;
+#endif
+int dn_skipname (const u_char *, const u_char *) __THROW;
+libc_hidden_proto(dn_skipname)
+int dn_comp (const char *, u_char *, int, u_char **, u_char **)
+ __THROW;
+libc_hidden_proto(dn_comp)
+int dn_expand (const u_char *, const u_char *, const u_char *,
+ char *, int) __THROW;
+libc_hidden_proto(dn_expand)
+int res_ninit (res_state) __THROW;
+void res_nclose (res_state) __THROW;
+#if 0
+u_int res_randomid (void) __THROW;
+int res_nameinquery (const char *, int, int,
+ const u_char *, const u_char *) __THROW;
+int res_queriesmatch (const u_char *, const u_char *,
+ const u_char *, const u_char *) __THROW;
+const char * p_section (int section, int opcode) __THROW;
+/* Things involving a resolver context. */
+int res_nisourserver (const res_state,
+ const struct sockaddr_in *) __THROW;
+void fp_resstat (const res_state, FILE *) __THROW;
+void res_npquery (const res_state, const u_char *, int, FILE *)
+ __THROW;
+const char * res_hostalias (const res_state, const char *, char *, size_t)
+ __THROW;
+int res_nquery (res_state, const char *, int, int, u_char *, int)
+ __THROW;
+int res_nsearch (res_state, const char *, int, int, u_char *, int)
+ __THROW;
+int res_nquerydomain (res_state, const char *, const char *, int,
+ int, u_char *, int) __THROW;
+int res_nmkquery (res_state, int, const char *, int, int,
+ const u_char *, int, const u_char *, u_char *,
+ int) __THROW;
+int res_nsend (res_state, const u_char *, int, u_char *, int)
+ __THROW;
+#endif
+__END_DECLS
+
+# if _LIBC
+# ifdef __UCLIBC_HAS_THREADS__
+# if defined __UCLIBC_HAS_TLS__ \
+ && (!defined NOT_IN_libc || defined IS_IN_libpthread)
+# undef _res
+# ifndef NOT_IN_libc
+# define __resp __libc_resp
+# endif
+# define _res (*__resp)
+extern __thread struct __res_state *__resp attribute_tls_model_ie;
+# endif
+# else
+# undef _res
+# define _res (*__resp)
+extern struct __res_state *__resp;
+# endif /* __UCLIBC_HAS_THREADS__ */
+# endif /* _LIBC */
+
+#endif /* _RESOLV_H_ */
+
+#endif /* !_RESOLV_H_ */