diff options
Diffstat (limited to 'resolv/resolv.h')
| -rw-r--r-- | resolv/resolv.h | 273 |
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_ */ |