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authorUlrich Drepper <drepper@redhat.com>2000-07-19 22:03:58 +0000
committerUlrich Drepper <drepper@redhat.com>2000-07-19 22:03:58 +0000
commite685e07dfa9de08cd0b671e293b94efe116349fa (patch)
tree3c283589ea027f9b4ef9062366e9729e87efd46a /resolv/resolv.h
parent80ec4993cc416058f6f8e98ce32bd729e9be1150 (diff)
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Update.
2000-07-18 Mark Kettenis <kettenis@gnu.org> Update resolver code to BIND 8.2.3-T5B. * resolv/Versions [GLIBC_2.2] (libc): Add __res_init and __res_nclose. [GLIBC_2.2] (libresolv): Add __dn_expand, __ns_samename, __res_mkquery, __res_nsend, __res_query, __res_querydomain and __res_search. * resolv/Banner: BIND-8.2.3-T5B. * resolv/base64.c: Update from BIND 8.2.3-T5B. * resolv/herror.c: Likewise. * resolv/inet_addr.c: Likewise. * resolv/inet_net_ntop.c: Likewise. * resolv/inet_net_pton.c: Likewise. * resolv/inet_neta.c: Likewise. * resolv/inet_ntop.c: Likewise. * resolv/nsap_addr.c: Likewise. * resolv/inet_pton.c: Likewise. Reject a few more more invalid IPv6 addresses (ISC bug #520). * resolv/ns_name.c: Avoid emitting RCS ID in object file. * resolv/ns_parse.c: Likewise. * resolv/ns_netint.c: Likewise. * resolv/ns_samedomain.c: Likewise. * resolv/ns_ttl.c: Likewise. * resolv/ns_print.c: Update from BIND 8.2.3-T5B. Avoid emitting RCS ID in object file. * resolv/res_debug.c: Update from BIND 8.2.3-T5B. * resolv/res_mkquery.c: Likewise. * resolv/res_query.c: Likewise. * resolv/res_init.c: Likewise. (res_setoptions): Mark internal. * resolv/res_send.c: Likewise. [_LIBC]: Fully reinstate the code that avoids the FD_SETSIZE limit by using poll instead. * resolv/res_comp.c: Likewise. [SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make dn_expand a weak alias for __dn_expand. * resolv/res_data.c: Likewise. (res_close) [_LIBC]: Don't call res_nclose if RES_INIT isn't set in _res.options. Avoids a potential security risk by avoiding a close (0). [SHLIB_COMPAT (libresolv, GLIBC_2_0, GLIBC_2_2)]: Make res_mkquery, res_query, res_querydomain adn res_search weak aliases for __res_mkquery, __res_query, __res_querydomain and __res_search. * resolv/res_libc.c: (_res): Don't initialize. Fix res_close instead to avoid close(0). (res_init): Always use the static resolver context. [SHLIB_COMPAT (libc, GLIBC_2.0, GLIBC_2_2)]: Make res_init a weak alias for __res_init. * resolv/resolv.h: Update from BIND 8.2.3-T5B. Move definition of RES_SET_H_ERRNO and accompanying comment to... * include/resolv.h: ... here. * resolv/arpa/namser.h: Update from BIND 8.2.3-T5B. * resolv/arpa/nameser_compat.h: Likewise.
Diffstat (limited to 'resolv/resolv.h')
-rw-r--r--resolv/resolv.h273
1 files changed, 119 insertions, 154 deletions
diff --git a/resolv/resolv.h b/resolv/resolv.h
index 426ac7a..058c631 100644
--- a/resolv/resolv.h
+++ b/resolv/resolv.h
@@ -1,9 +1,7 @@
/*
- * ++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
* modification, are permitted provided that the following conditions
* are met:
@@ -15,7 +13,7 @@
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
- *
+ *
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -27,26 +25,6 @@
* 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--
*/
/*
@@ -68,13 +46,11 @@
/*
* @(#)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/param.h>
#if (!defined(BSD)) || (BSD < 199306)
@@ -82,8 +58,11 @@
#else
# include <sys/types.h>
#endif
+#include <sys/cdefs.h>
#include <stdio.h>
+
#include <netinet/in.h>
+#include <arpa/nameser.h>
/*
* Revision information. This is the release date in YYYYMMDD format.
@@ -96,37 +75,9 @@
#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.
+ * inital name server(s) to query and the domain search list.
*/
#ifndef _PATH_RESCONF
@@ -136,19 +87,19 @@ struct __res_state; /* forward */
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_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) (const struct sockaddr_in *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 */
@@ -170,9 +121,10 @@ struct res_sym {
#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. */
struct __res_state {
- int retrans; /* retransmission time interval */
+ int retrans; /* retransmition time interval */
int retry; /* number of times to retransmit */
u_long options; /* option flags - see below. */
int nscount; /* number of name servers */
@@ -193,9 +145,17 @@ struct __res_state {
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 */
+ int _vcsock; /* PRIVATE: for res_send VC i/o */
u_int _flags; /* PRIVATE: see below */
- char pad[52]; /* On an i386 this means 512b total. */
+ union {
+ char pad[52]; /* On an i386 this means 512b total. */
+ struct {
+ u_int16_t nscount;
+ u_int16_t nstimes[MAXNS]; /* ms. */
+ int nssocks[MAXNS];
+ struct sockaddr_in nsaddrs[MAXNS];
+ } _ext;
+ } _u;
};
typedef struct __res_state *res_state;
@@ -229,6 +189,7 @@ typedef struct __res_state *res_state;
#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 */
#define RES_DEFAULT (RES_RECURSE | RES_DEFNAMES | RES_DNSRCH)
@@ -237,7 +198,7 @@ typedef struct __res_state *res_state;
*/
#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
@@ -253,46 +214,51 @@ typedef struct __res_state *res_state;
/* 0x00008000 */
/* Things involving an internal (static) resolver context. */
-#if defined _REENTRANT || defined _LIBC_REENTRANT
+#if !defined _LIBC || defined _LIBC_REENTRANT
extern struct __res_state *__res_state(void) __attribute__ ((__const__));
-# if defined __RES_PTHREAD_INTERNAL
-extern struct __res_state _res;
-# else
-# define _res (*__res_state())
-# endif
+#define _res (*__res_state())
#else
+#ifndef __BIND_NOSTATIC
extern struct __res_state _res;
#endif
+#endif
+#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
__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 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_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;
+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));
__END_DECLS
+#endif
-#if !defined(SHARED_LIBBIND) || defined(_LIBC)
+#if !defined(SHARED_LIBBIND) || defined(LIB)
/*
* If libbind is a shared object (well, DLL anyway)
- * these externs break the linker when resolv.h is
+ * 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
*
@@ -308,6 +274,7 @@ extern const struct res_sym __p_rcode_syms[];
#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
@@ -326,7 +293,6 @@ extern const struct res_sym __p_rcode_syms[];
#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
@@ -347,63 +313,62 @@ extern const struct res_sym __p_rcode_syms[];
#define sym_ntos __sym_ntos
#define sym_ston __sym_ston
__BEGIN_DECLS
-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;
-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 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;
+int res_hnok __P((const char *));
+int res_ownok __P((const char *));
+int res_mailok __P((const char *));
+int res_dnok __P((const char *));
+int sym_ston __P((const struct res_sym *, const char *, int *));
+const char * sym_ntos __P((const struct res_sym *, int, int *));
+const char * sym_ntop __P((const struct res_sym *, int, int *));
+int b64_ntop __P((u_char const *, size_t, char *, size_t));
+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 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));
+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,
+ int, char *, int));
+const u_char * p_fqname __P((const u_char *, const u_char *, FILE *));
+const char * p_option __P((u_long option));
+char * p_secstodate __P((u_long));
+int dn_count_labels __P((const char *));
+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));
+u_int res_randomid __P((void));
+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 *));
+const char * p_section __P((int section, int opcode));
/* 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 res_nclose (res_state) __THROW;
+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));
+void res_nclose __P((res_state));
__END_DECLS
#endif /* !_RESOLV_H_ */