/*
- * ++Copyright++ 1983, 1987, 1989, 1993
- * -
- * Copyright (c) 1983, 1987, 1989, 1993
+ * Copyright (c) 1983, 1987, 1989
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
- * -
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
- * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
- * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
- * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
- * SOFTWARE.
- * -
- * --Copyright--
*/
/*
/*
* @(#)resolv.h 8.1 (Berkeley) 6/2/93
- * $Id$
+ * $BINDId: resolv.h,v 8.31 2000/03/30 20:16:50 vixie Exp $
*/
-#ifndef _RESOLV_H
-#define _RESOLV_H 1
-
-#include <features.h>
+#ifndef _RESOLV_H_
+#define _RESOLV_H_
+#include <sys/cdefs.h>
#include <sys/param.h>
-#if (!defined(BSD)) || (BSD < 199306)
-# include <sys/bitypes.h>
-#else
-# include <sys/types.h>
-#endif
+#include <sys/types.h>
#include <stdio.h>
#include <netinet/in.h>
+#include <arpa/nameser.h>
+#include <bits/types/res_state.h>
+
+/*
+ * Global defines and variables for resolver stub.
+ */
+#define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */
+
+#define RES_TIMEOUT 5 /* min. seconds between retries */
+#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. */
+#define RES_MAXTIME 65535 /* Infinity, in milliseconds. */
+
+#define nsaddr nsaddr_list[0] /* for backward compatibility */
/*
* Revision information. This is the release date in YYYYMMDD format.
#define __RES 19991006
/*
- * 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
- */
-#define RES_SET_H_ERRNO(r,x) \
- do \
- { \
- (r)->res_h_errno = x; \
- __set_h_errno(x); \
- } \
- while (0)
-
-struct __res_state; /* forward */
-
-/*
* Resolver configuration file.
* Normally not present, but may contain the address of the
* initial name server(s) to query and the domain search list.
#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) (struct sockaddr_in * const *ns,
- const u_char **query,
- int *querylen,
- u_char *ans,
- int anssiz,
- int *resplen);
-
-typedef res_sendhookact (*res_send_rhook) (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" */
};
/*
- * Global defines and variables for resolver stub.
- */
-#define MAXNS 3 /* max # name servers we'll track */
-#define MAXDFLSRCH 3 /* # default domain levels to try */
-#define MAXDNSRCH 6 /* max # domains in search path */
-#define LOCALDOMAINPARTS 2 /* min levels in name that is "local" */
-
-#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; /* retransmission time interval */
- int retry; /* number of times to retransmit */
- u_long options; /* option flags - see below. */
- int nscount; /* number of name servers */
- struct sockaddr_in
- nsaddr_list[MAXNS]; /* address of name server */
-#define nsaddr nsaddr_list[0] /* for backward compatibility */
- u_short id; /* current message id */
- char *dnsrch[MAXDNSRCH+1]; /* components of domain to search */
- char defdname[256]; /* default domain (deprecated) */
- u_long pfcode; /* RES_PRF_ flags - see below. */
- unsigned ndots:4; /* threshold for initial abs. query */
- unsigned nsort:4; /* number of elements in sort_list[] */
- char unused[3];
- struct {
- struct in_addr addr;
- u_int32_t mask;
- } sort_list[MAXRESOLVSORT];
- 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)
*/
#define RES_INIT 0x00000001 /* address initialized */
#define RES_DEBUG 0x00000002 /* print debug messages */
-#define RES_AAONLY 0x00000004 /* authoritative answers only (!IMPL)*/
+#define RES_AAONLY \
+ __glibc_macro_warning ("RES_AAONLY is deprecated") 0x00000004
#define RES_USEVC 0x00000008 /* use virtual circuit */
-#define RES_PRIMARY 0x00000010 /* query primary server only (!IMPL) */
+#define RES_PRIMARY \
+ __glibc_macro_warning ("RES_PRIMARY is deprecated") 0x00000010
#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_NOCHECKNAME \
+ __glibc_macro_warning ("RES_NOCHECKNAME is deprecated") 0x00008000
+#define RES_KEEPTSIG \
+ __glibc_macro_warning ("RES_KEEPTSIG is deprecated") 0x00010000
+#define RES_BLAST \
+ __glibc_macro_warning ("RES_BLAST is deprecated") 0x00020000
+#define RES_USE_EDNS0 0x00100000 /* Use EDNS0. */
+#define RES_SNGLKUP 0x00200000 /* one outstanding request at a time */
+#define RES_SNGLKUPREOP 0x00400000 /* -"-, but open new socket for each
+ request */
+#define RES_USE_DNSSEC 0x00800000 /* use DNSSEC using OK bit in OPT */
+#define RES_NOTLDQUERY 0x01000000 /* Do not look up unqualified name
+ as a TLD. */
+#define RES_NORELOAD 0x02000000 /* No automatic configuration reload. */
+#define RES_TRUSTAD 0x04000000 /* Request AD bit, keep it in responses. */
+#define RES_NOAAAA 0x08000000 /* Suppress AAAA queries. */
-#define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)
+#define RES_DEFAULT (RES_RECURSE|RES_DEFNAMES|RES_DNSRCH)
/*
* Resolver "pfcode" values. Used by dig.
*/
#define RES_PRF_STATS 0x00000001
#define RES_PRF_UPDATE 0x00000002
-#define RES_PRF_CLASS 0x00000004
+#define RES_PRF_CLASS 0x00000004
#define RES_PRF_CMD 0x00000008
#define RES_PRF_QUES 0x00000010
#define RES_PRF_ANS 0x00000020
/* 0x00008000 */
/* Things involving an internal (static) resolver context. */
-#if defined _REENTRANT || defined _LIBC_REENTRANT
-extern struct __res_state *__res_state(void);
+__BEGIN_DECLS
+extern struct __res_state *__res_state(void) __attribute__ ((__const__));
+__END_DECLS
#define _res (*__res_state())
-#else
-extern struct __res_state _res;
-#endif
#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_send __res_send
+
+#ifdef _LIBC
+# define __RESOLV_DEPRECATED
+# define __RESOLV_DEPRECATED_MSG(msg)
+#else
+# define __RESOLV_DEPRECATED __attribute_deprecated__
+# define __RESOLV_DEPRECATED_MSG(msg) __attribute_deprecated_msg__ (msg)
+#endif
__BEGIN_DECLS
-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;
+void fp_nquery (const unsigned char *, int, FILE *) __THROW
+ __RESOLV_DEPRECATED;
+void fp_query (const unsigned char *, FILE *) __THROW
+ __RESOLV_DEPRECATED;
+const char * hostalias (const char *) __THROW
+ __RESOLV_DEPRECATED_MSG ("use getaddrinfo instead");
+void p_query (const unsigned char *) __THROW
+ __RESOLV_DEPRECATED;
void res_close (void) __THROW;
int res_init (void) __THROW;
-int res_isourserver (const struct sockaddr_in *) __THROW;
-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;
+int res_isourserver (const struct sockaddr_in *) __THROW
+ __RESOLV_DEPRECATED;
+int res_mkquery (int, const char *, int, int,
+ const unsigned char *, int, const unsigned char *,
+ unsigned char *, int) __THROW;
+int res_query (const char *, int, int, unsigned char *, int)
+ __THROW;
int res_querydomain (const char *, const char *, int, int,
- u_char *, int) __THROW;
-int res_search (const char *, int, int, u_char *, int) __THROW;
-int res_send (const u_char *, int, u_char *, int) __THROW;
+ unsigned char *, int) __THROW;
+int res_search (const char *, int, int, unsigned char *, int)
+ __THROW;
+int res_send (const unsigned char *, int, unsigned char *, int)
+ __THROW;
__END_DECLS
-#if !defined(SHARED_LIBBIND) || defined(_LIBC)
-/*
- * 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 b64_ntop __b64_ntop
#define b64_pton __b64_pton
-#define dn_comp __dn_comp
#define dn_count_labels __dn_count_labels
-#define dn_skipname __dn_skipname
#define fp_resstat __fp_resstat
#define loc_aton __loc_aton
#define loc_ntoa __loc_ntoa
#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_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_nisourserver __res_nisourserver
-#define res_ownok __res_ownok
#define res_queriesmatch __res_queriesmatch
#define res_randomid __res_randomid
#define sym_ntop __sym_ntop
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;
-int dn_skipname (const u_char *, const u_char *) __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;
-int dn_comp (const char *, u_char *, int,
- u_char **, u_char **) __THROW;
-int dn_expand (const u_char *, const u_char *, const u_char *,
- char *, int) __THROW;
-u_int res_randomid (void) __THROW;
+int sym_ston (const struct res_sym *, const char *, int *) __THROW
+ __RESOLV_DEPRECATED;
+const char * sym_ntos (const struct res_sym *, int, int *) __THROW
+ __RESOLV_DEPRECATED;
+const char * sym_ntop (const struct res_sym *, int, int *) __THROW
+ __RESOLV_DEPRECATED;
+int b64_ntop (const unsigned char *, size_t, char *, size_t)
+ __THROW;
+int b64_pton (char const *, unsigned char *, size_t) __THROW;
+int loc_aton (const char *__ascii, unsigned char *__binary) __THROW
+ __RESOLV_DEPRECATED;
+const char * loc_ntoa (const unsigned char *__binary, char *__ascii) __THROW
+ __RESOLV_DEPRECATED;
+int dn_skipname (const unsigned char *, const unsigned char *)
+ __THROW;
+void putlong (uint32_t, unsigned char *) __THROW
+ __RESOLV_DEPRECATED_MSG ("use NS_PUT16 instead");
+void putshort (uint16_t, unsigned char *) __THROW
+ __RESOLV_DEPRECATED_MSG ("use NS_PUT32 instead");
+const char * p_class (int) __THROW __RESOLV_DEPRECATED;
+const char * p_time (uint32_t) __THROW __RESOLV_DEPRECATED;
+const char * p_type (int) __THROW __RESOLV_DEPRECATED;
+const char * p_rcode (int) __THROW __RESOLV_DEPRECATED;
+const unsigned char * p_cdnname (const unsigned char *, const unsigned char *,
+ int, FILE *) __THROW __RESOLV_DEPRECATED;
+const unsigned char * p_cdname (const unsigned char *, const unsigned char *,
+ FILE *) __THROW __RESOLV_DEPRECATED;
+const unsigned char * p_fqnname (const unsigned char *__cp,
+ const unsigned char *__msg,
+ int, char *, int) __THROW __RESOLV_DEPRECATED;
+const unsigned char * p_fqname (const unsigned char *, const unsigned char *,
+ FILE *) __THROW __RESOLV_DEPRECATED;
+const char * p_option (unsigned long __option) __THROW __RESOLV_DEPRECATED;
+int dn_count_labels (const char *) __THROW __RESOLV_DEPRECATED;
+int dn_comp (const char *, unsigned char *, int, unsigned char **,
+ unsigned char **) __THROW;
+int dn_expand (const unsigned char *, const unsigned char *,
+ const unsigned char *, char *, int) __THROW;
+unsigned int res_randomid (void) __THROW
+ __RESOLV_DEPRECATED_MSG ("use getentropy instead");
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;
+ const unsigned char *,
+ const unsigned char *) __THROW
+ __RESOLV_DEPRECATED;
+int res_queriesmatch (const unsigned char *,
+ const unsigned char *,
+ const unsigned char *,
+ const unsigned char *) __THROW
+ __RESOLV_DEPRECATED;
/* Things involving a resolver context. */
int res_ninit (res_state) __THROW;
-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;
+void fp_resstat (const res_state, FILE *) __THROW
+ __RESOLV_DEPRECATED;
+const char * res_hostalias (const res_state, const char *, char *, size_t)
+ __THROW __RESOLV_DEPRECATED_MSG ("use getaddrinfo instead");
+int res_nquery (res_state, const char *, int, int,
+ unsigned char *, int) __THROW;
+int res_nsearch (res_state, const char *, int, int,
+ unsigned char *, int) __THROW;
+int res_nquerydomain (res_state, const char *, const char *, int,
+ int, unsigned char *, int) __THROW;
+int res_nmkquery (res_state, int, const char *, int, int,
+ const unsigned char *, int,
+ const unsigned char *, unsigned char *, int)
+ __THROW;
+int res_nsend (res_state, const unsigned char *, int,
+ unsigned char *, int) __THROW;
void res_nclose (res_state) __THROW;
+
__END_DECLS
#endif /* !_RESOLV_H_ */
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