We don't use ADNS anymore so get rid of the tree.

1 files changed, 0 insertions, 705 deletions

diff --git a/adns-0.6/src/internal.h b/adns-0.6/src/internal.h
deleted file mode 100644
index 9e442fe..0000000
--- a/adns-0.6/src/internal.h
+++ /dev/null
@@ -1,705 +0,0 @@
-/*
- * internal.h
- * - declarations of private objects with external linkage (adns__*)
- * - definitons of internal macros
- * - comments regarding library data structures
- */
-/*
- *  This file is
- *    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
- *
- *  It is part of adns, which is
- *    Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
- *    Copyright (C) 1999 Tony Finch <dot@dotat.at>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software Foundation,
- *  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
-
-#ifndef ADNS_INTERNAL_H_INCLUDED
-#define ADNS_INTERNAL_H_INCLUDED
-
-#include "config.h"
-typedef unsigned char byte;
-
-#include <stdarg.h>
-#include <assert.h>
-#include <unistd.h>
-#include <signal.h>
-#include <errno.h>
-#include <string.h>
-
-#include <sys/time.h>
-
-#include "adns.h"
-#include "dlist.h"
-
-/* Configuration and constants */
-
-#define MAXSERVERS 5
-#define MAXSORTLIST 15
-#define UDPMAXRETRIES 15
-#define UDPRETRYMS 2000
-#define TCPWAITMS 30000
-#define TCPCONNMS 14000
-#define TCPIDLEMS 30000
-#define MAXTTLBELIEVE (7*86400) /* any TTL > 7 days is capped */
-
-#define DNS_PORT 53
-#define DNS_MAXUDP 512
-#define DNS_MAXDOMAIN 255
-#define DNS_HDRSIZE 12
-#define DNS_IDOFFSET 0
-#define DNS_CLASS_IN 1
-
-#define DNS_INADDR_ARPA "in-addr", "arpa"
-
-#define MAX_POLLFDS  ADNS_POLLFDS_RECOMMENDED
-
-typedef enum {
-  cc_user,
-  cc_entex,
-  cc_freq
-} consistency_checks;
-
-typedef enum {
-  rcode_noerror,
-  rcode_formaterror,
-  rcode_servfail,
-  rcode_nxdomain,
-  rcode_notimp,
-  rcode_refused
-} dns_rcode;
-
-/* Shared data structures */
-
-typedef union {
-  adns_status status;
-  char *cp;
-  adns_rrtype type;
-  int i;
-  struct in_addr ia;
-  unsigned long ul;
-} rr_align;
-
-typedef struct {
-  int used, avail;
-  byte *buf;
-} vbuf;
-
-typedef struct {
-  adns_state ads;
-  adns_query qu;
-  int serv;
-  const byte *dgram;
-  int dglen, nsstart, nscount, arcount;
-  struct timeval now;
-} parseinfo;
-
-typedef struct {
-  adns_rrtype type;
-  const char *rrtname;
-  const char *fmtname;
-  int rrsz;
-
-  void (*makefinal)(adns_query qu, void *data);
-  /* Change memory management of *data.
-   * Previously, used alloc_interim, now use alloc_final.
-   */
-
-  adns_status (*convstring)(vbuf *vb, const void *data);
-  /* Converts the RR data to a string representation in vbuf.
-   * vbuf will be appended to (it must have been initialised),
-   * and will not be null-terminated by convstring.
-   */
-
-  adns_status (*parse)(const parseinfo *pai, int cbyte, int max, void *store_r);
-  /* Parse one RR, in dgram of length dglen, starting at cbyte and
-   * extending until at most max.
-   *
-   * The RR should be stored at *store_r, of length qu->typei->rrsz.
-   *
-   * If there is an overrun which might indicate truncation, it should set
-   * *rdstart to -1; otherwise it may set it to anything else positive.
-   *
-   * nsstart is the offset of the authority section.
-   */
-
-  int (*diff_needswap)(adns_state ads, const void *datap_a, const void *datap_b);
-  /* Returns !0 if RR a should be strictly after RR b in the sort order,
-   * 0 otherwise.  Must not fail.
-   */
-} typeinfo;
-
-typedef struct allocnode {
-  struct allocnode *next, *back;
-} allocnode;
-
-union maxalign {
-  byte d[1];
-  struct in_addr ia;
-  long l;
-  void *p;
-  void (*fp)(void);
-  union maxalign *up;
-} data;
-
-typedef struct {
-  void *ext;
-  void (*callback)(adns_query parent, adns_query child);
-  union {
-    adns_rr_addr ptr_parent_addr;
-    adns_rr_hostaddr *hostaddr;
-  } info;
-} qcontext;
-
-struct adns__query {
-  adns_state ads;
-  enum { query_tosend, query_tcpw, query_childw, query_done } state;
-  adns_query back, next, parent;
-  struct { adns_query head, tail; } children;
-  struct { adns_query back, next; } siblings;
-  struct { allocnode *head, *tail; } allocations;
-  int interim_allocd, preserved_allocd;
-  void *final_allocspace;
-
-  const typeinfo *typei;
-  byte *query_dgram;
-  int query_dglen;
-
-  vbuf vb;
-  /* General-purpose messing-about buffer.
-   * Wherever a `big' interface is crossed, this may be corrupted/changed
-   * unless otherwise specified.
-   */
-
-  adns_answer *answer;
-  /* This is allocated when a query is submitted, to avoid being unable
-   * to relate errors to queries if we run out of memory.  During
-   * query processing status, rrs is 0.  cname is set if
-   * we found a cname (this corresponds to cname_dgram in the query
-   * structure).  type is set from the word go.  nrrs and rrs
-   * are set together, when we find how many rrs there are.
-   * owner is set during querying unless we're doing searchlist,
-   * in which case it is set only when we find an answer.
-   */
-
-  byte *cname_dgram;
-  int cname_dglen, cname_begin;
-  /* If non-0, has been allocated using . */
-
-  vbuf search_vb;
-  int search_origlen, search_pos, search_doneabs;
-  /* Used by the searching algorithm.  The query domain in textual form
-   * is copied into the vbuf, and _origlen set to its length.  Then
-   * we walk the searchlist, if we want to.  _pos says where we are
-   * (next entry to try), and _doneabs says whether we've done the
-   * absolute query yet (0=not yet, 1=done, -1=must do straight away,
-   * but not done yet).  If flags doesn't have adns_qf_search then
-   * the vbuf is initialised but empty and everything else is zero.
-   */
-
-  int id, flags, retries;
-  int udpnextserver;
-  unsigned long udpsent; /* bitmap indexed by server */
-  struct timeval timeout;
-  time_t expires; /* Earliest expiry time of any record we used. */
-
-  qcontext ctx;
-
-  /* Possible states:
-   *
-   *  state   Queue   child  id   nextudpserver  udpsent     tcpfailed
-   *
-   *  tosend  NONE    null   >=0  0              zero        zero
-   *  tosend  udpw    null   >=0  any            nonzero     zero
-   *  tosend  NONE    null   >=0  any            nonzero     zero
-   *
-   *  tcpw    tcpw    null   >=0  irrelevant     any         any
-   *
-   *  child   childw  set    >=0  irrelevant     irrelevant  irrelevant
-   *  child   NONE    null   >=0  irrelevant     irrelevant  irrelevant
-   *  done    output  null   -1   irrelevant     irrelevant  irrelevant
-   *
-   * Queries are only not on a queue when they are actually being processed.
-   * Queries in state tcpw/tcpw have been sent (or are in the to-send buffer)
-   * iff the tcp connection is in state server_ok.
-   *
-   *			      +------------------------+
-   *             START -----> |      tosend/NONE       |
-   *			      +------------------------+
-   *                         /                       |\  \
-   *        too big for UDP /             UDP timeout  \  \ send via UDP
-   *        send via TCP   /              more retries  \  \
-   *        when conn'd   /                  desired     \  \
-   *                     |     	       	       	       	  |  |
-   *                     v				  |  v
-   *              +-----------+         	    	+-------------+
-   *              | tcpw/tcpw | ________                | tosend/udpw |
-   *              +-----------+         \	    	+-------------+
-   *                 |    |              |     UDP timeout | |
-   *                 |    |              |      no more    | |
-   *                 |    |              |      retries    | |
-   *                  \   | TCP died     |      desired    | |
-   *                   \   \ no more     |                 | |
-   *                    \   \ servers    | TCP            /  |
-   *                     \   \ to try    | timeout       /   |
-   *                  got \   \          v             |_    | got
-   *                 reply \   _| +------------------+      / reply
-   *   	       	       	    \  	  | done/output FAIL |     /
-   *                         \    +------------------+    /
-   *                          \                          /
-   *                           _|                      |_
-   *                             (..... got reply ....)
-   *                              /                   \
-   *        need child query/ies /                     \ no child query
-   *                            /                       \
-   *                          |_                         _|
-   *		   +---------------+		       +----------------+
-   *               | childw/childw | ----------------> | done/output OK |
-   *               +---------------+  children done    +----------------+
-   */
-};
-
-struct query_queue { adns_query head, tail; };
-
-struct adns__state {
-  adns_initflags iflags;
-  FILE *diagfile;
-  int configerrno;
-  struct query_queue udpw, tcpw, childw, output;
-  adns_query forallnext;
-  int nextid, udpsocket, tcpsocket;
-  vbuf tcpsend, tcprecv;
-  int nservers, nsortlist, nsearchlist, searchndots, tcpserver, tcprecv_skip;
-  enum adns__tcpstate {
-    server_disconnected, server_connecting,
-    server_ok, server_broken
-  } tcpstate;
-  struct timeval tcptimeout;
-  /* This will have tv_sec==0 if it is not valid.
-   * It will always be valid if tcpstate _connecting.
-   * When _ok, it will be nonzero if we are idle
-   * (ie, tcpw queue is empty) and counting down.
-   */
-  struct sigaction stdsigpipe;
-  sigset_t stdsigmask;
-  struct pollfd pollfds_buf[MAX_POLLFDS];
-  struct server {
-    struct in_addr addr;
-  } servers[MAXSERVERS];
-  struct sortlist {
-    struct in_addr base, mask;
-  } sortlist[MAXSORTLIST];
-  char **searchlist;
-};
-
-/* From setup.c: */
-
-int adns__setnonblock(adns_state ads, int fd); /* => errno value */
-
-/* From general.c: */
-
-void adns__vdiag(adns_state ads, const char *pfx, adns_initflags prevent,
-		 int serv, adns_query qu, const char *fmt, va_list al);
-
-void adns__debug(adns_state ads, int serv, adns_query qu,
-		 const char *fmt, ...) PRINTFFORMAT(4,5);
-void adns__warn(adns_state ads, int serv, adns_query qu,
-		const char *fmt, ...) PRINTFFORMAT(4,5);
-void adns__diag(adns_state ads, int serv, adns_query qu,
-		const char *fmt, ...) PRINTFFORMAT(4,5);
-
-int adns__vbuf_ensure(vbuf *vb, int want);
-int adns__vbuf_appendstr(vbuf *vb, const char *data); /* does not include nul */
-int adns__vbuf_append(vbuf *vb, const byte *data, int len);
-/* 1=>success, 0=>realloc failed */
-void adns__vbuf_appendq(vbuf *vb, const byte *data, int len);
-void adns__vbuf_init(vbuf *vb);
-void adns__vbuf_free(vbuf *vb);
-
-const char *adns__diag_domain(adns_state ads, int serv, adns_query qu,
-			      vbuf *vb, const byte *dgram, int dglen, int cbyte);
-/* Unpicks a domain in a datagram and returns a string suitable for
- * printing it as.  Never fails - if an error occurs, it will
- * return some kind of string describing the error.
- *
- * serv may be -1 and qu may be 0.  vb must have been initialised,
- * and will be left in an arbitrary consistent state.
- *
- * Returns either vb->buf, or a pointer to a string literal.  Do not modify
- * vb before using the return value.
- */
-
-void adns__isort(void *array, int nobjs, int sz, void *tempbuf,
-		 int (*needswap)(void *context, const void *a, const void *b),
-		 void *context);
-/* Does an insertion sort of array which must contain nobjs objects
- * each sz bytes long.  tempbuf must point to a buffer at least
- * sz bytes long.  needswap should return !0 if a>b (strictly, ie
- * wrong order) 0 if a<=b (ie, order is fine).
- */
-
-void adns__sigpipe_protect(adns_state);
-void adns__sigpipe_unprotect(adns_state);
-/* If SIGPIPE protection is not disabled, will block all signals except
- * SIGPIPE, and set SIGPIPE's disposition to SIG_IGN.  (And then restore.)
- * Each call to _protect must be followed by a call to _unprotect before
- * any significant amount of code gets to run, since the old signal mask
- * is stored in the adns structure.
- */
-
-/* From transmit.c: */
-
-adns_status adns__mkquery(adns_state ads, vbuf *vb, int *id_r,
-			  const char *owner, int ol,
-			  const typeinfo *typei, adns_queryflags flags);
-/* Assembles a query packet in vb.  A new id is allocated and returned.
- */
-
-adns_status adns__mkquery_frdgram(adns_state ads, vbuf *vb, int *id_r,
-				  const byte *qd_dgram, int qd_dglen, int qd_begin,
-				  adns_rrtype type, adns_queryflags flags);
-/* Same as adns__mkquery, but takes the owner domain from an existing datagram.
- * That domain must be correct and untruncated.
- */
-
-void adns__querysend_tcp(adns_query qu, struct timeval now);
-/* Query must be in state tcpw/tcpw; it will be sent if possible and
- * no further processing can be done on it for now.  The connection
- * might be broken, but no reconnect will be attempted.
- */
-
-void adns__query_send(adns_query qu, struct timeval now);
-/* Query must be in state tosend/NONE; it will be moved to a new state,
- * and no further processing can be done on it for now.
- * (Resulting state is one of udp/timew, tcpwait/timew (if server not connected),
- *  tcpsent/timew, child/childw or done/output.)
- * __query_send may decide to use either UDP or TCP depending whether
- * _qf_usevc is set (or has become set) and whether the query is too
- * large.
- */
-
-/* From query.c: */
-
-adns_status adns__internal_submit(adns_state ads, adns_query *query_r,
-				  const typeinfo *typei, vbuf *qumsg_vb, int id,
-				  adns_queryflags flags, struct timeval now,
-				  const qcontext *ctx);
-/* Submits a query (for internal use, called during external submits).
- *
- * The new query is returned in *query_r, or we return adns_s_nomemory.
- *
- * The query datagram should already have been assembled in qumsg_vb;
- * the memory for it is _taken over_ by this routine whether it
- * succeeds or fails (if it succeeds, the vbuf is reused for qu->vb).
- *
- * *ctx is copied byte-for-byte into the query.
- *
- * When the child query is done, ctx->callback will be called.  The
- * child will already have been taken off both the global list of
- * queries in ads and the list of children in the parent.  The child
- * will be freed when the callback returns.  The parent will have been
- * taken off the global childw queue.
- *
- * The callback should either call adns__query_done, if it is
- * complete, or adns__query_fail, if an error has occurred, in which
- * case the other children (if any) will be cancelled.  If the parent
- * has more unfinished children (or has just submitted more) then the
- * callback may choose to wait for them - it must then put the parent
- * back on the childw queue.
- */
-
-void adns__search_next(adns_state ads, adns_query qu, struct timeval now);
-/* Walks down the searchlist for a query with adns_qf_search.
- * The query should have just had a negative response, or not had
- * any queries sent yet, and should not be on any queue.
- * The query_dgram if any will be freed and forgotten and a new
- * one constructed from the search_* members of the query.
- *
- * Cannot fail (in case of error, calls adns__query_fail).
- */
-
-void *adns__alloc_interim(adns_query qu, size_t sz);
-void *adns__alloc_preserved(adns_query qu, size_t sz);
-/* Allocates some memory, and records which query it came from
- * and how much there was.
- *
- * If an error occurs in the query, all the memory from _interim is
- * simply freed.  If the query succeeds, one large buffer will be made
- * which is big enough for all these allocations, and then
- * adns__alloc_final will get memory from this buffer.
- *
- * _alloc_interim can fail (and return 0).
- * The caller must ensure that the query is failed.
- *
- * The memory from _preserved is is kept and transferred into the
- * larger buffer - unless we run out of memory, in which case it too
- * is freed.  When you use _preserved you have to add code to the
- * x_nomem error exit case in adns__makefinal_query to clear out the
- * pointers you made to those allocations, because that's when they're
- * thrown away; you should also make a note in the declaration of
- * those pointer variables, to note that they are _preserved rather
- * than _interim.  If they're in the answer, note it here:
- *  answer->cname and answer->owner are _preserved.
- */
-
-void adns__transfer_interim(adns_query from, adns_query to, void *block, size_t sz);
-/* Transfers an interim allocation from one query to another, so that
- * the `to' query will have room for the data when we get to makefinal
- * and so that the free will happen when the `to' query is freed
- * rather than the `from' query.
- *
- * It is legal to call adns__transfer_interim with a null pointer; this
- * has no effect.
- *
- * _transfer_interim also ensures that the expiry time of the `to' query
- * is no later than that of the `from' query, so that child queries'
- * TTLs get inherited by their parents.
- */
-
-void *adns__alloc_mine(adns_query qu, size_t sz);
-/* Like _interim, but does not record the length for later
- * copying into the answer.  This just ensures that the memory
- * will be freed when we're done with the query.
- */
-
-void *adns__alloc_final(adns_query qu, size_t sz);
-/* Cannot fail, and cannot return 0.
- */
-
-void adns__makefinal_block(adns_query qu, void **blpp, size_t sz);
-void adns__makefinal_str(adns_query qu, char **strp);
-
-void adns__reset_preserved(adns_query qu);
-/* Resets all of the memory management stuff etc. to take account of
- * only the _preserved stuff from _alloc_preserved.  Used when we find
- * an error somewhere and want to just report the error (with perhaps
- * CNAME, owner, etc. info), and also when we're halfway through RRs
- * in a datagram and discover that we need to retry the query.
- */
-
-void adns__query_done(adns_query qu);
-void adns__query_fail(adns_query qu, adns_status stat);
-
-/* From reply.c: */
-
-void adns__procdgram(adns_state ads, const byte *dgram, int len,
-		     int serv, int viatcp, struct timeval now);
-/* This function is allowed to cause new datagrams to be constructed
- * and sent, or even new queries to be started.  However,
- * query-sending functions are not allowed to call any general event
- * loop functions in case they accidentally call this.
- *
- * Ie, receiving functions may call sending functions.
- * Sending functions may NOT call receiving functions.
- */
-
-/* From types.c: */
-
-const typeinfo *adns__findtype(adns_rrtype type);
-
-/* From parse.c: */
-
-typedef struct {
-  adns_state ads;
-  adns_query qu;
-  int serv;
-  const byte *dgram;
-  int dglen, max, cbyte, namelen;
-  int *dmend_r;
-} findlabel_state;
-
-void adns__findlabel_start(findlabel_state *fls, adns_state ads,
-			   int serv, adns_query qu,
-			   const byte *dgram, int dglen, int max,
-			   int dmbegin, int *dmend_rlater);
-/* Finds labels in a domain in a datagram.
- *
- * Call this routine first.
- * dmend_rlater may be null.  ads (and of course fls) may not be.
- * serv may be -1, qu may be null - they are for error reporting.
- */
-
-adns_status adns__findlabel_next(findlabel_state *fls, int *lablen_r, int *labstart_r);
-/* Then, call this one repeatedly.
- *
- * It will return adns_s_ok if all is well, and tell you the length
- * and start of successive labels.  labstart_r may be null, but
- * lablen_r must not be.
- *
- * After the last label, it will return with *lablen_r zero.
- * Do not then call it again; instead, just throw away the findlabel_state.
- *
- * *dmend_rlater will have been set to point to the next part of
- * the datagram after the label (or after the uncompressed part,
- * if compression was used).  *namelen_rlater will have been set
- * to the length of the domain name (total length of labels plus
- * 1 for each intervening dot).
- *
- * If the datagram appears to be truncated, *lablen_r will be -1.
- * *dmend_rlater, *labstart_r and *namelen_r may contain garbage.
- * Do not call _next again.
- *
- * There may also be errors, in which case *dmend_rlater,
- * *namelen_rlater, *lablen_r and *labstart_r may contain garbage.
- * Do not then call findlabel_next again.
- */
-
-typedef enum {
-  pdf_quoteok= 0x001
-} parsedomain_flags;
-
-adns_status adns__parse_domain(adns_state ads, int serv, adns_query qu,
-			       vbuf *vb, parsedomain_flags flags,
-			       const byte *dgram, int dglen, int *cbyte_io, int max);
-/* vb must already have been initialised; it will be reset if necessary.
- * If there is truncation, vb->used will be set to 0; otherwise
- * (if there is no error) vb will be null-terminated.
- * If there is an error vb and *cbyte_io may be left indeterminate.
- *
- * serv may be -1 and qu may be 0 - they are used for error reporting only.
- */
-
-adns_status adns__parse_domain_more(findlabel_state *fls, adns_state ads,
-				    adns_query qu, vbuf *vb, parsedomain_flags flags,
-				    const byte *dgram);
-/* Like adns__parse_domain, but you pass it a pre-initialised findlabel_state,
- * for continuing an existing domain or some such of some kind.  Also, unlike
- * _parse_domain, the domain data will be appended to vb, rather than replacing
- * the existing contents.
- */
-
-adns_status adns__findrr(adns_query qu, int serv,
-			 const byte *dgram, int dglen, int *cbyte_io,
-			 int *type_r, int *class_r, unsigned long *ttl_r,
-			 int *rdlen_r, int *rdstart_r,
-			 int *ownermatchedquery_r);
-/* Finds the extent and some of the contents of an RR in a datagram
- * and does some checks.  The datagram is *dgram, length dglen, and
- * the RR starts at *cbyte_io (which is updated afterwards to point
- * to the end of the RR).
- *
- * The type, class, TTL and RRdata length and start are returned iff
- * the corresponding pointer variables are not null.  type_r, class_r
- * and ttl_r may not be null.  The TTL will be capped.
- *
- * If ownermatchedquery_r != 0 then the owner domain of this
- * RR will be compared with that in the query (or, if the query
- * has gone to a CNAME lookup, with the canonical name).
- * In this case, *ownermatchedquery_r will be set to 0 or 1.
- * The query datagram (or CNAME datagram) MUST be valid and not truncated.
- *
- * If there is truncation then *type_r will be set to -1 and
- * *cbyte_io, *class_r, *rdlen_r, *rdstart_r and *eo_matched_r will be
- * undefined.
- *
- * qu must obviously be non-null.
- *
- * If an error is returned then *type_r will be undefined too.
- */
-
-adns_status adns__findrr_anychk(adns_query qu, int serv,
-				const byte *dgram, int dglen, int *cbyte_io,
-				int *type_r, int *class_r, unsigned long *ttl_r,
-				int *rdlen_r, int *rdstart_r,
-				const byte *eo_dgram, int eo_dglen, int eo_cbyte,
-				int *eo_matched_r);
-/* Like adns__findrr_checked, except that the datagram and
- * owner to compare with can be specified explicitly.
- *
- * If the caller thinks they know what the owner of the RR ought to
- * be they can pass in details in eo_*: this is another (or perhaps
- * the same datagram), and a pointer to where the putative owner
- * starts in that datagram.  In this case *eo_matched_r will be set
- * to 1 if the datagram matched or 0 if it did not.  Either
- * both eo_dgram and eo_matched_r must both be non-null, or they
- * must both be null (in which case eo_dglen and eo_cbyte will be ignored).
- * The eo datagram and contained owner domain MUST be valid and
- * untruncated.
- */
-
-void adns__update_expires(adns_query qu, unsigned long ttl, struct timeval now);
-/* Updates the `expires' field in the query, so that it doesn't exceed
- * now + ttl.
- */
-
-int vbuf__append_quoted1035(vbuf *vb, const byte *buf, int len);
-
-/* From event.c: */
-
-void adns__tcp_broken(adns_state ads, const char *what, const char *why);
-/* what and why may be both 0, or both non-0. */
-
-void adns__tcp_tryconnect(adns_state ads, struct timeval now);
-
-void adns__autosys(adns_state ads, struct timeval now);
-/* Make all the system calls we want to if the application wants us to.
- * Must not be called from within adns internal processing functions,
- * lest we end up in recursive descent !
- */
-
-void adns__must_gettimeofday(adns_state ads, const struct timeval **now_io,
-			     struct timeval *tv_buf);
-
-int adns__pollfds(adns_state ads, struct pollfd pollfds_buf[MAX_POLLFDS]);
-void adns__fdevents(adns_state ads,
-		    const struct pollfd *pollfds, int npollfds,
-		    int maxfd, const fd_set *readfds,
-		    const fd_set *writefds, const fd_set *exceptfds,
-		    struct timeval now, int *r_r);
-int adns__internal_check(adns_state ads,
-			 adns_query *query_io,
-			 adns_answer **answer,
-			 void **context_r);
-
-void adns__timeouts(adns_state ads, int act,
-		    struct timeval **tv_io, struct timeval *tvbuf,
-		    struct timeval now);
-/* If act is !0, then this will also deal with the TCP connection
- * if previous events broke it or require it to be connected.
- */
-
-/* From check.c: */
-
-void adns__consistency(adns_state ads, adns_query qu, consistency_checks cc);
-
-/* Useful static inline functions: */
-
-static inline int ctype_whitespace(int c) { return c==' ' || c=='\n' || c=='\t'; }
-static inline int ctype_digit(int c) { return c>='0' && c<='9'; }
-static inline int ctype_alpha(int c) {
-  return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z');
-}
-static inline int ctype_822special(int c) { return strchr("()<>@,;:\\\".[]",c) != 0; }
-
-static inline int errno_resources(int e) { return e==ENOMEM || e==ENOBUFS; }
-
-/* Useful macros */
-
-#define MEM_ROUND(sz) \
-  (( ((sz)+sizeof(union maxalign)-1) / sizeof(union maxalign) ) \
-   * sizeof(union maxalign) )
-
-#define GETIL_B(cb) (((dgram)[(cb)++]) & 0x0ff)
-#define GET_B(cb,tv) ((tv)= GETIL_B((cb)))
-#define GET_W(cb,tv) ((tv)=0, (tv)|=(GETIL_B((cb))<<8), (tv)|=GETIL_B(cb), (tv))
-#define GET_L(cb,tv) ( (tv)=0, \
-		       (tv)|=(GETIL_B((cb))<<24), \
-		       (tv)|=(GETIL_B((cb))<<16), \
-		       (tv)|=(GETIL_B((cb))<<8), \
-		       (tv)|=GETIL_B(cb), \
-		       (tv) )
-
-#endif