X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=adns.git;a=blobdiff_plain;f=src%2Ftypes.c;h=9f7dbd336a6b01333432c3823ee271ed209163a2;hp=94b79d2f164a2d2b37c7325e3010546a74a83100;hb=4b707d8b1701aec2cec7431d4656f771b96a9f00;hpb=828d89bd4196ad8ef825cdf2db26afe2eb797b69

diff --git a/src/types.c b/src/types.c
index 94b79d2..9f7dbd3 100644
--- a/src/types.c
+++ b/src/types.c
@@ -27,25 +27,248 @@
 
 #include "internal.h"
 
-static int dip_inaddr(struct in_addr a, struct in_addr b) {
-  /* fixme implement sortlist */
-  return 0;
+#define R_NOMEM           return adns_s_nomemory
+#define CSP_ADDSTR(s)     if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; else;
+
+/*
+ * order of sections:
+ *
+ * _string                    (pap)
+ * _textdata, _qstring        (csp)
+ * _str                       (mf,cs)
+ * _intstr                    (mf,csp,cs)
+ * _manyistr                  (mf,cs)
+ * _txt                       (pa)
+ * _inaddr                    (pa,dip,di)
+ * _addr                      (pa,di,csp,cs)
+ * _domain                    (pap)
+ * _host_raw                  (pa)
+ * _hostaddr                  (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs)
+ * _mx_raw                    (pa,di)
+ * _mx                        (pa,di)
+ * _inthostaddr               (mf,cs)
+ * _ptr                       (pa)
+ * _strpair                   (mf,cs)
+ * _intstrpair                (mf,cs)
+ * _hinfo                     (pa)
+ * _mailbox                   (pap)
+ * _rp                        (pa)
+ * _soa                       (pa,mf,cs)
+ * _flat                      (mf)
+ *
+ * within each section:
+ *    pap_*
+ *    pa_*
+ *    dip_*
+ *    di_*
+ *    mfp_*
+ *    mf_*
+ *    csp_*
+ *    cs_*
+ */
+
+/*
+ * _string               (pap)
+ * _textdata, _qstring   (csp)
+ */
+
+static adns_status pap_string(const parseinfo *pai, int *cbyte_io, int max,
+			      int *len_r, char **str_r) {
+  /* Neither len_r nor str_r may be null.
+   * End of datagram (overrun) is indicated by returning adns_s_invaliddata;
+   */
+  const byte *dgram= pai->dgram;
+  int l, cbyte;
+  char *str;
+
+  cbyte= *cbyte_io;
+
+  if (cbyte >= max) return adns_s_invaliddata;
+  GET_B(cbyte,l);
+  if (cbyte+l > max) return adns_s_invaliddata;
+  
+  str= adns__alloc_interim(pai->qu, l+1);
+  if (!str) R_NOMEM;
+  
+  str[l]= 0;
+  memcpy(str,dgram+cbyte,l);
+
+  *len_r= l;
+  *str_r= str;
+  *cbyte_io= cbyte+l;
+  
+  return adns_s_ok;
+}
+
+static adns_status csp_textdata(vbuf *vb, const char *dp, int len) {
+  unsigned char ch;
+  char buf[10];
+  int cn;
+
+  CSP_ADDSTR("\"");
+  for (cn=0; cn<len; cn++) {
+    ch= *dp++;
+    if (ch >= 32 && ch <= 126 && ch != '"' && ch != '\\') {
+      if (!adns__vbuf_append(vb,&ch,1)) R_NOMEM;
+    } else if (ch == '\\') {
+      CSP_ADDSTR("\\\\");
+    } else {
+      sprintf(buf,"\\x%02x",ch);
+      CSP_ADDSTR(buf);
+    }
+  }
+  CSP_ADDSTR("\"");
+  
+  return adns_s_ok;
+}
+
+static adns_status csp_qstring(vbuf *vb, const char *dp) {
+  return csp_textdata(vb, dp, strlen(dp));
+}
+
+/*
+ * _str  (mf,cs)
+ */
+
+static void mf_str(adns_query qu, void *datap) {
+  char **rrp= datap;
+
+  adns__makefinal_str(qu,rrp);
+}
+
+static adns_status cs_str(vbuf *vb, const void *datap) {
+  const char *const *rrp= datap;
+
+  return csp_qstring(vb,*rrp);
+}
+
+/*
+ * _intstr  (mf,csp,cs)
+ */
+
+static void mf_intstr(adns_query qu, void *datap) {
+  adns_rr_intstr *rrp= datap;
+
+  adns__makefinal_str(qu,&rrp->str);
+}
+
+static adns_status csp_intstr(vbuf *vb, const adns_rr_intstr *rrp) {
+  char buf[10];
+
+  sprintf(buf,"%u ",rrp->i);
+  CSP_ADDSTR(buf);
+  return csp_qstring(vb,rrp->str);
+}
+
+static adns_status cs_intstr(vbuf *vb, const void *datap) {
+  const adns_rr_intstr *rrp= datap;
+  
+  return csp_intstr(vb,rrp);
+}
+
+/*
+ * _manyistr   (mf,cs)
+ */
+
+static void mf_manyistr(adns_query qu, void *datap) {
+  adns_rr_intstr **rrp= datap;
+  adns_rr_intstr *te, *table;
+  void *tablev;
+  int tc;
+
+  for (tc=0, te= *rrp; te->i >= 0; te++, tc++);
+  tablev= *rrp;
+  adns__makefinal_block(qu,&tablev,sizeof(*te)*(tc+1));
+  *rrp= table= tablev;
+  for (te= *rrp; te->i >= 0; te++)
+    adns__makefinal_str(qu,&te->str);
+}
+
+static adns_status cs_manyistr(vbuf *vb, const void *datap) {
+  const adns_rr_intstr *const *rrp= datap;
+  const adns_rr_intstr *current;
+  adns_status st;
+  int spc;
+
+  for (spc=0, current= *rrp; current->i >= 0; current++) {
+    if (spc) CSP_ADDSTR(" ");
+    st= csp_textdata(vb,current->str,current->i); if (st) return st;
+  }
+  return adns_s_ok;
+}
+
+/*
+ * _txt   (pa)
+ */
+
+static adns_status pa_txt(const parseinfo *pai, int cbyte, int max, void *datap) {
+  adns_rr_intstr **rrp= datap, *table, *te;
+  const byte *dgram= pai->dgram;
+  int ti, tc, l, startbyte;
+  adns_status st;
+
+  startbyte= cbyte;
+  if (cbyte >= max) return adns_s_invaliddata;
+  tc= 0;
+  while (cbyte < max) {
+    GET_B(cbyte,l);
+    cbyte+= l;
+    tc++;
+  }
+  if (cbyte != max) return adns_s_invaliddata;
+
+  table= adns__alloc_interim(pai->qu,sizeof(*table)*(tc+1));
+  if (!table) R_NOMEM;
+
+  for (cbyte=startbyte, ti=0, te=table; ti<tc; ti++, te++) {
+    st= pap_string(pai, &cbyte, max, &te->i, &te->str);
+    if (st) return st;
+  }
+  assert(cbyte == max);
+
+  te->i= -1;
+  te->str= 0;
+  
+  *rrp= table;
+  return adns_s_ok;
 }
 
-static adns_status pa_inaddr(adns_query qu, int serv,
-			     const byte *dgram, int dglen, int cbyte, int max,
-			     void *datap) {
+/*
+ * _inaddr   (pa,dip,di)
+ */
+
+static adns_status pa_inaddr(const parseinfo *pai, int cbyte, int max, void *datap) {
   struct in_addr *storeto= datap;
   
   if (max-cbyte != 4) return adns_s_invaliddata;
-  memcpy(storeto,dgram+cbyte,4);
+  memcpy(storeto, pai->dgram + cbyte, 4);
   return adns_s_ok;
 }
 
-static int di_inaddr(const void *datap_a, const void *datap_b) {
+static int search_sortlist(adns_state ads, struct in_addr ad) {
+  const struct sortlist *slp;
+  int i;
+  
+  for (i=0, slp=ads->sortlist;
+       i<ads->nsortlist && !((ad.s_addr & slp->mask.s_addr) == slp->base.s_addr);
+       i++, slp++);
+  return i;
+}
+
+static int dip_inaddr(adns_state ads, struct in_addr a, struct in_addr b) {
+  int ai, bi;
+  
+  if (!ads->nsortlist) return 0;
+
+  ai= search_sortlist(ads,a);
+  bi= search_sortlist(ads,b);
+  return bi<ai;
+}
+
+static int di_inaddr(adns_state ads, const void *datap_a, const void *datap_b) {
   const struct in_addr *ap= datap_a, *bp= datap_b;
 
-  return dip_inaddr(*ap,*bp);
+  return dip_inaddr(ads,*ap,*bp);
 }
 
 static adns_status cs_inaddr(vbuf *vb, const void *datap) {
@@ -53,86 +276,281 @@ static adns_status cs_inaddr(vbuf *vb, const void *datap) {
   const char *ia;
 
   ia= inet_ntoa(rr); assert(ia);
-  return adns__vbuf_appendstr(vb,ia) ? adns_s_ok : adns_s_nolocalmem;
+  CSP_ADDSTR(ia);
+  return adns_s_ok;
 }
 
-static adns_status pa_addr(adns_query qu, int serv,
-			   const byte *dgram, int dglen, int cbyte, int max,
-			   void *datap) {
-  adns_addr *storeto= datap;
-  
+/*
+ * _addr   (pa,di,csp,cs)
+ */
+
+static adns_status pa_addr(const parseinfo *pai, int cbyte, int max, void *datap) {
+  adns_rr_addr *storeto= datap;
+  const byte *dgram= pai->dgram;
+
   if (max-cbyte != 4) return adns_s_invaliddata;
   storeto->len= sizeof(storeto->addr.inet);
   memset(&storeto->addr,0,sizeof(storeto->addr.inet));
   storeto->addr.inet.sin_family= AF_INET;
-  storeto->addr.inet.sin_port= 0;
   memcpy(&storeto->addr.inet.sin_addr,dgram+cbyte,4);
   return adns_s_ok;
 }
 
-static int di_addr(const void *datap_a, const void *datap_b) {
-  const adns_addr *ap= datap_a, *bp= datap_b;
+static int di_addr(adns_state ads, const void *datap_a, const void *datap_b) {
+  const adns_rr_addr *ap= datap_a, *bp= datap_b;
 
-  return dip_inaddr(ap->addr.inet.sin_addr,bp->addr.inet.sin_addr);
+  assert(ap->addr.sa.sa_family == AF_INET);
+  return dip_inaddr(ads, ap->addr.inet.sin_addr, bp->addr.inet.sin_addr);
 }
 
-static adns_status cs_addr(vbuf *vb, const void *datap) {
-  const adns_addr *rrp= datap;
+static int div_addr(void *context, const void *datap_a, const void *datap_b) {
+  const adns_state ads= context;
+
+  return di_addr(ads, datap_a, datap_b);
+}		     
+
+static adns_status csp_addr(vbuf *vb, const adns_rr_addr *rrp) {
   const char *ia;
   static char buf[30];
 
   switch (rrp->addr.inet.sin_family) {
   case AF_INET:
-    if (!adns__vbuf_appendstr(vb,"AF_INET ")) return adns_s_nolocalmem;
+    CSP_ADDSTR("AF_INET ");
     ia= inet_ntoa(rrp->addr.inet.sin_addr); assert(ia);
-    if (!adns__vbuf_appendstr(vb,ia)) return adns_s_nolocalmem;
+    CSP_ADDSTR(ia);
     break;
   default:
     sprintf(buf,"AF=%u",rrp->addr.sa.sa_family);
-    if (!adns__vbuf_appendstr(vb,buf)) return adns_s_nolocalmem;
+    CSP_ADDSTR(buf);
     break;
   }
   return adns_s_ok;
 }
 
-static adns_status pap_domain(adns_query qu, int serv, parsedomain_flags flags,
-			       const byte *dgram, int dglen, int *cbyte_io, int max,
-			       char **domain_r) {
+static adns_status cs_addr(vbuf *vb, const void *datap) {
+  const adns_rr_addr *rrp= datap;
+
+  return csp_addr(vb,rrp);
+}
+
+/*
+ * _domain  (pap)
+ */
+
+static adns_status pap_domain(const parseinfo *pai, int *cbyte_io, int max,
+			      char **domain_r, parsedomain_flags flags) {
   adns_status st;
   char *dm;
   
-  st= adns__parse_domain(qu->ads,serv,qu,&qu->vb,flags, dgram,dglen, cbyte_io,max);
+  st= adns__parse_domain(pai->qu->ads, pai->serv, pai->qu, &pai->qu->vb, flags,
+			 pai->dgram,pai->dglen, cbyte_io, max);
   if (st) return st;
-  if (!qu->vb.used) return adns_s_invaliddata;
+  if (!pai->qu->vb.used) return adns_s_invaliddata;
 
-  dm= adns__alloc_interim(qu,qu->vb.used+1);
-  if (!dm) return adns_s_nolocalmem;
+  dm= adns__alloc_interim(pai->qu, pai->qu->vb.used+1);
+  if (!dm) R_NOMEM;
 
-  dm[qu->vb.used]= 0;
-  memcpy(dm,qu->vb.buf,qu->vb.used);
+  dm[pai->qu->vb.used]= 0;
+  memcpy(dm,pai->qu->vb.buf,pai->qu->vb.used);
   
   *domain_r= dm;
   return adns_s_ok;
 }
 
-static adns_status pa_host_raw(adns_query qu, int serv,
-			       const byte *dgram, int dglen, int cbyte, int max,
-			       void *datap) {
+/*
+ * _host_raw   (pa)
+ */
+
+static adns_status pa_host_raw(const parseinfo *pai, int cbyte, int max, void *datap) {
   char **rrp= datap;
   adns_status st;
 
-  st= pap_domain(qu,serv,
-		 qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0,
-		 dgram,dglen,&cbyte,max,rrp);
+  st= pap_domain(pai, &cbyte, max, rrp,
+		 pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
   if (st) return st;
   
   if (cbyte != max) return adns_s_invaliddata;
   return adns_s_ok;
 }
 
-static adns_status pa_mx_raw(adns_query qu, int serv,
-			     const byte *dgram, int dglen, int cbyte, int max,
-			     void *datap) {
+/*
+ * _hostaddr   (pap,pa,dip,di,mfp,mf,csp,cs +icb_hostaddr, pap_findaddrs)
+ */
+
+static adns_status pap_findaddrs(const parseinfo *pai, adns_rr_hostaddr *ha,
+				 int *cbyte_io, int count, int dmstart) {
+  int rri, naddrs;
+  int type, class, rdlen, rdstart, ownermatched;
+  adns_status st;
+  
+  for (rri=0, naddrs=-1; rri<count; rri++) {
+    st= adns__findrr_anychk(pai->qu, pai->serv, pai->dgram, pai->dglen, cbyte_io,
+			    &type, &class, &rdlen, &rdstart,
+			    pai->dgram, pai->dglen, dmstart, &ownermatched);
+    if (st) return st;
+    if (!ownermatched || class != DNS_CLASS_IN || type != adns_r_a) {
+      if (naddrs>0) break; else continue;
+    }
+    if (naddrs == -1) {
+      naddrs= 0;
+    }
+    if (!adns__vbuf_ensure(&pai->qu->vb, (naddrs+1)*sizeof(adns_rr_addr))) R_NOMEM;
+    st= pa_addr(pai, rdstart,rdstart+rdlen,
+		pai->qu->vb.buf + naddrs*sizeof(adns_rr_addr));
+    if (st) return st;
+    naddrs++;
+  }
+  if (naddrs >= 0) {
+    ha->addrs= adns__alloc_interim(pai->qu, naddrs*sizeof(adns_rr_addr));
+    if (!ha->addrs) R_NOMEM;
+    memcpy(ha->addrs, pai->qu->vb.buf, naddrs*sizeof(adns_rr_addr));
+    ha->naddrs= naddrs;
+    ha->astatus= adns_s_ok;
+
+    adns__isort(ha->addrs, naddrs, sizeof(adns_rr_addr), pai->qu->vb.buf,
+		div_addr, pai->ads);
+  }
+  return adns_s_ok;
+}
+
+static void icb_hostaddr(adns_query parent, adns_query child) {
+  adns_answer *cans= child->answer;
+  adns_rr_hostaddr *rrp= child->ctx.info.hostaddr;
+
+  rrp->astatus= cans->status;
+  rrp->naddrs= cans->nrrs;
+  rrp->addrs= cans->rrs.addr;
+  adns__transfer_interim(child, parent, rrp->addrs, rrp->naddrs*sizeof(adns_rr_addr));
+
+  if (!parent->children.head) adns__query_done(parent);
+}
+
+static adns_status pap_hostaddr(const parseinfo *pai, int *cbyte_io,
+				int max, adns_rr_hostaddr *rrp) {
+  adns_status st;
+  int dmstart, cbyte;
+  qcontext ctx;
+  int id;
+  adns_query nqu;
+  adns_queryflags nflags;
+
+  dmstart= cbyte= *cbyte_io;
+  st= pap_domain(pai, &cbyte, max, &rrp->host,
+		 pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
+  if (st) return st;
+  *cbyte_io= cbyte;
+
+  rrp->astatus= adns_s_ok;
+  rrp->naddrs= -1;
+  rrp->addrs= 0;
+
+  cbyte= pai->nsstart;
+
+  st= pap_findaddrs(pai, rrp, &cbyte, pai->nscount, dmstart);
+  if (st) return st;
+  if (rrp->naddrs != -1) return adns_s_ok;
+
+  st= pap_findaddrs(pai, rrp, &cbyte, pai->arcount, dmstart);
+  if (st) return st;
+  if (rrp->naddrs != -1) return adns_s_ok;
+
+  st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id,
+			    pai->dgram, pai->dglen, dmstart,
+			    adns_r_addr, adns_qf_quoteok_query);
+  if (st) return st;
+
+  ctx.ext= 0;
+  ctx.callback= icb_hostaddr;
+  ctx.info.hostaddr= rrp;
+  
+  nflags= adns_qf_quoteok_query;
+  if (!(pai->qu->flags & adns_qf_cname_loose)) nflags |= adns_qf_cname_forbid;
+  
+  st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr),
+			    &pai->qu->vb, id, nflags, pai->now, 0, &ctx);
+  if (st) return st;
+
+  nqu->parent= pai->qu;
+  LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.);
+
+  return adns_s_ok;
+}
+
+static adns_status pa_hostaddr(const parseinfo *pai, int cbyte, int max, void *datap) {
+  adns_rr_hostaddr *rrp= datap;
+  adns_status st;
+
+  st= pap_hostaddr(pai, &cbyte, max, rrp);
+  if (st) return st;
+  if (cbyte != max) return adns_s_invaliddata;
+
+  return adns_s_ok;
+}
+
+static int dip_hostaddr(adns_state ads, const adns_rr_hostaddr *ap, const adns_rr_hostaddr *bp) {
+  if (ap->astatus != bp->astatus) return ap->astatus;
+  if (ap->astatus) return 0;
+
+  assert(ap->addrs[0].addr.sa.sa_family == AF_INET);
+  assert(bp->addrs[0].addr.sa.sa_family == AF_INET);
+  return dip_inaddr(ads,
+		    ap->addrs[0].addr.inet.sin_addr,
+		    bp->addrs[0].addr.inet.sin_addr);
+}
+
+static int di_hostaddr(adns_state ads, const void *datap_a, const void *datap_b) {
+  const adns_rr_hostaddr *ap= datap_a, *bp= datap_b;
+
+  return dip_hostaddr(ads, ap,bp);
+}
+
+static void mfp_hostaddr(adns_query qu, adns_rr_hostaddr *rrp) {
+  void *tablev;
+
+  adns__makefinal_str(qu,&rrp->host);
+  tablev= rrp->addrs;
+  adns__makefinal_block(qu, &tablev, rrp->naddrs*sizeof(*rrp->addrs));
+  rrp->addrs= tablev;
+}
+
+static void mf_hostaddr(adns_query qu, void *datap) {
+  adns_rr_hostaddr *rrp= datap;
+
+  mfp_hostaddr(qu,rrp);
+}
+
+static adns_status csp_hostaddr(vbuf *vb, const adns_rr_hostaddr *rrp) {
+  const char *to_add;
+  adns_status st;
+  int i;
+
+  st= csp_qstring(vb,rrp->host); if (st) return st;
+
+  if (rrp->astatus) {
+    CSP_ADDSTR(" - ");
+    CSP_ADDSTR(adns_strerror(rrp->astatus));
+  } else {
+    assert(rrp->naddrs > 0);
+    for (i=0, to_add= ": "; i<rrp->naddrs; i++, to_add= ", ") {
+      CSP_ADDSTR(to_add);
+      st= csp_addr(vb,&rrp->addrs[i]);
+    }
+  }
+  return adns_s_ok;
+}
+
+static adns_status cs_hostaddr(vbuf *vb, const void *datap) {
+  const adns_rr_hostaddr *rrp= datap;
+
+  return csp_hostaddr(vb,rrp);
+}
+
+/*
+ * _mx_raw   (pa,di)
+ */
+
+static adns_status pa_mx_raw(const parseinfo *pai, int cbyte, int max, void *datap) {
+  const byte *dgram= pai->dgram;
   adns_rr_intstr *rrp= datap;
   adns_status st;
   int pref;
@@ -140,16 +558,15 @@ static adns_status pa_mx_raw(adns_query qu, int serv,
   if (cbyte+2 > max) return adns_s_invaliddata;
   GET_W(cbyte,pref);
   rrp->i= pref;
-  st= pap_domain(qu,serv,
-		 qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0,
-		 dgram,dglen,&cbyte,max,&rrp->str);
+  st= pap_domain(pai, &cbyte, max, &rrp->str,
+		 pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
   if (st) return st;
   
   if (cbyte != max) return adns_s_invaliddata;
   return adns_s_ok;
 }
 
-static int di_mx_raw(const void *datap_a, const void *datap_b) {
+static int di_mx_raw(adns_state ads, const void *datap_a, const void *datap_b) {
   const adns_rr_intstr *ap= datap_a, *bp= datap_b;
 
   if (ap->i < bp->i) return 0;
@@ -157,172 +574,336 @@ static int di_mx_raw(const void *datap_a, const void *datap_b) {
   return 0;
 }
 
-static adns_status pa_txt(adns_query qu, int serv,
-			  const byte *dgram, int dglen, int startbyte, int max,
-			  void *datap) {
-  adns_rr_intstr **rrp= datap, *table, *te;
-  int ti, tc, cbyte, l;
+/*
+ * _mx   (pa,di)
+ */
 
-  cbyte= startbyte;
-  if (cbyte >= max) return adns_s_invaliddata;
-  tc= 0;
-  while (cbyte < max) {
-    GET_B(cbyte,l);
-    cbyte+= l;
-  }
+static adns_status pa_mx(const parseinfo *pai, int cbyte, int max, void *datap) {
+  const byte *dgram= pai->dgram;
+  adns_rr_inthostaddr *rrp= datap;
+  adns_status st;
+  int pref;
+
+  if (cbyte+2 > max) return adns_s_invaliddata;
+  GET_W(cbyte,pref);
+  rrp->i= pref;
+  st= pap_hostaddr(pai, &cbyte, max, &rrp->ha);
+  if (st) return st;
+  
   if (cbyte != max) return adns_s_invaliddata;
+  return adns_s_ok;
+}
 
-  table= adns__alloc_interim(qu,sizeof(*table)*(tc+1));
-  if (!table) return adns_s_nolocalmem;
+static int di_mx(adns_state ads, const void *datap_a, const void *datap_b) {
+  const adns_rr_inthostaddr *ap= datap_a, *bp= datap_b;
 
-  for (cbyte=startbyte, ti=0, te=table; ti<tc; ti++, te++) {
-    GET_B(cbyte,l);
-    te->str= adns__alloc_interim(qu,l+1);
-    if (!te->str) return adns_s_nolocalmem;
-    te->str[l]= 0;
-    memcpy(te->str,dgram+cbyte,l);
-    te->i= l;
-  }
-  assert(cbyte == max);
+  if (ap->i < bp->i) return 0;
+  if (ap->i > bp->i) return 1;
+  return dip_hostaddr(ads, &ap->ha, &bp->ha);
+}
 
-  te->i= -1;
-  te->str= 0;
-  
-  *rrp= table;
-  return adns_s_ok;
+/*
+ * _inthostaddr  (mf,cs)
+ */
+
+static void mf_inthostaddr(adns_query qu, void *datap) {
+  adns_rr_inthostaddr *rrp= datap;
+
+  mfp_hostaddr(qu,&rrp->ha);
 }
 
-static int csp_textdata(vbuf *vb, const char *dp, int len) {
-  unsigned char ch;
+static adns_status cs_inthostaddr(vbuf *vb, const void *datap) {
+  const adns_rr_inthostaddr *rrp= datap;
   char buf[10];
-  int cn;
 
-  if (!adns__vbuf_append(vb,"\"",1)) return 0;
+  sprintf(buf,"%u ",rrp->i);
+  CSP_ADDSTR(buf);
 
-  for (cn=0; cn<len; cn++) {
-    ch= *dp++;
-    if (ch >= 32 && ch <= 126 && ch != '"' && ch != '\\') {
-      if (!adns__vbuf_append(vb,&ch,1)) return 0;
-    } else {
-      sprintf(buf,"\\%02x",ch);
-      if (!adns__vbuf_appendstr(vb,buf)) return 0;
+  return csp_hostaddr(vb,&rrp->ha);
+}
+
+/*
+ * _ptr   (pa, +icb_ptr)
+ */
+
+static void icb_ptr(adns_query parent, adns_query child) {
+  adns_answer *cans= child->answer;
+  const adns_rr_addr *queried, *found;
+  int i;
+
+  if (cans->status == adns_s_nxdomain || cans->status == adns_s_nodata) {
+    adns__query_fail(parent,adns_s_inconsistent);
+    return;
+  } else if (cans->status) {
+    adns__query_fail(parent,cans->status);
+    return;
+  }
+
+  queried= &parent->ctx.info.ptr_parent_addr;
+  for (i=0, found=cans->rrs.addr; i<cans->nrrs; i++, found++) {
+    if (queried->len == found->len &&
+	!memcmp(&queried->addr,&found->addr,queried->len)) {
+      if (!parent->children.head) adns__query_done(parent);
+      return;
     }
   }
+
+  adns__query_fail(parent,adns_s_inconsistent);
+}
+
+static adns_status pa_ptr(const parseinfo *pai, int dmstart, int max, void *datap) {
+  static const char *(expectdomain[])= { DNS_INADDR_ARPA };
   
-  if (!adns__vbuf_append(vb,"\"",1)) return 0;
-  return 1;
+  char **rrp= datap;
+  adns_status st;
+  adns_rr_addr *ap;
+  findlabel_state fls;
+  char *ep;
+  byte ipv[4];
+  char labbuf[4];
+  int cbyte, i, lablen, labstart, l, id;
+  adns_query nqu;
+  qcontext ctx;
+
+  cbyte= dmstart;
+  st= pap_domain(pai, &cbyte, max, rrp,
+		 pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
+  if (st) return st;
+  if (cbyte != max) return adns_s_invaliddata;
+
+  ap= &pai->qu->ctx.info.ptr_parent_addr;
+  if (!ap->len) {
+    adns__findlabel_start(&fls, pai->ads, -1, pai->qu,
+			  pai->qu->query_dgram, pai->qu->query_dglen,
+			  pai->qu->query_dglen, DNS_HDRSIZE, 0);
+    for (i=0; i<4; i++) {
+      st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st);
+      if (lablen<=0 || lablen>3) return adns_s_querydomainwrong;
+      memcpy(labbuf, pai->qu->query_dgram + labstart, lablen);  labbuf[lablen]= 0;
+      ipv[3-i]= strtoul(labbuf,&ep,10);  if (*ep) return adns_s_querydomainwrong;
+      if (lablen>1 && pai->qu->query_dgram[labstart]=='0')
+	return adns_s_querydomainwrong;
+    }
+    for (i=0; i<sizeof(expectdomain)/sizeof(*expectdomain); i++) {
+      st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st);
+      l= strlen(expectdomain[i]);
+      if (lablen != l || memcmp(pai->qu->query_dgram + labstart, expectdomain[i], l))
+	return adns_s_querydomainwrong;
+    }
+    st= adns__findlabel_next(&fls,&lablen,0); assert(!st);
+    if (lablen) return adns_s_querydomainwrong;
+    
+    ap->len= sizeof(struct sockaddr_in);
+    memset(&ap->addr,0,sizeof(ap->addr.inet));
+    ap->addr.inet.sin_family= AF_INET;
+    ap->addr.inet.sin_addr.s_addr=
+      htonl((ipv[0]<<24) | (ipv[1]<<16) | (ipv[2]<<8) | (ipv[3]));
+  }
+
+  st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id,
+			    pai->dgram, pai->dglen, dmstart,
+			    adns_r_addr, adns_qf_quoteok_query);
+  if (st) return st;
+
+  ctx.ext= 0;
+  ctx.callback= icb_ptr;
+  memset(&ctx.info,0,sizeof(ctx.info));
+  st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr),
+			    &pai->qu->vb, id,
+			    adns_qf_quoteok_query, pai->now, 0, &ctx);
+  if (st) return st;
+
+  nqu->parent= pai->qu;
+  LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.);
+  
+  return adns_s_ok;
 }
 
-static int csp_qstring(vbuf *vb, const char *dp) {
-  return csp_textdata(vb, dp, strlen(dp));
+/*
+ * _strpair   (mf,cs)
+ */
+
+static void mf_strpair(adns_query qu, void *datap) {
+  adns_rr_strpair *rrp= datap;
+
+  adns__makefinal_str(qu,&rrp->array[0]);
+  adns__makefinal_str(qu,&rrp->array[1]);
 }
 
-static adns_status cs_str(vbuf *vb, const void *datap) {
-  const char *const *rrp= datap;
+static adns_status cs_strpair(vbuf *vb, const void *datap) {
+  const adns_rr_strpair *rrp= datap;
+  adns_status st;
+
+  st= csp_qstring(vb,rrp->array[0]);  if (st) return st;
+  CSP_ADDSTR(" ");
+  st= csp_qstring(vb,rrp->array[1]);  if (st) return st;
 
-  return csp_qstring(vb,*rrp) ? adns_s_ok : adns_s_nolocalmem;
+  return adns_s_ok;
 }
 
-static adns_status cs_intstr(vbuf *vb, const void *datap) {
-  const adns_rr_intstr *rrp= datap;
-  char buf[10];
+/*
+ * _intstrpair   (mf,cs)
+ */
 
-  sprintf(buf,"%u ",rrp->i);
-  return (adns__vbuf_appendstr(vb,buf) &&
-	  csp_qstring(vb,rrp->str)) ? adns_s_ok : adns_s_nolocalmem;
+static void mf_intstrpair(adns_query qu, void *datap) {
+  adns_rr_intstrpair *rrp= datap;
+
+  adns__makefinal_str(qu,&rrp->array[0].str);
+  adns__makefinal_str(qu,&rrp->array[1].str);
 }
 
-static adns_status cs_manyistr(vbuf *vb, const void *datap) {
-  const adns_rr_intstr *const *rrp= datap;
-  const adns_rr_intstr *current;
-  int spc;
+static adns_status cs_intstrpair(vbuf *vb, const void *datap) {
+  const adns_rr_intstrpair *rrp= datap;
+  adns_status st;
 
-  for (spc=0, current= *rrp; current->i >= 0; current++) {
-    if (spc)
-      if (!adns__vbuf_append(vb," ",1)) goto x_nomem;
-    if (!csp_textdata(vb,current->str,current->i)) goto x_nomem;
+  st= csp_intstr(vb,&rrp->array[0]);  if (st) return st;
+  CSP_ADDSTR(" ");
+  st= csp_intstr(vb,&rrp->array[1]);  if (st) return st;
+
+  return adns_s_ok;
+}
+
+/*
+ * _hinfo   (pa)
+ */
+
+static adns_status pa_hinfo(const parseinfo *pai, int cbyte, int max, void *datap) {
+  adns_rr_intstrpair *rrp= datap;
+  adns_status st;
+  int i;
+
+  for (i=0; i<2; i++) {
+    st= pap_string(pai, &cbyte, max, &rrp->array[i].i, &rrp->array[i].str);
+    if (st) return st;
   }
+
+  if (cbyte != max) return adns_s_invaliddata;
+  
   return adns_s_ok;
+}
 
- x_nomem:
-  return adns_s_nolocalmem;
+/*
+ * _mailbox   (pap)
+ */
+
+static adns_status pap_mailbox(const parseinfo *pai, int *cbyte_io, int max,
+			       char **mb_r) {
+  return pap_domain(pai, cbyte_io, max, mb_r, pdf_quoteok);
+  /* fixme: mailbox quoting */
 }
 
-static void mf_str(adns_query qu, void *datap) {
-  char **rrp= datap;
+/*
+ * _rp   (pa)
+ */
 
-  adns__makefinal_str(qu,rrp);
+static adns_status pa_rp(const parseinfo *pai, int cbyte, int max, void *datap) {
+  adns_rr_strpair *rrp= datap;
+  adns_status st;
+
+  st= pap_mailbox(pai, &cbyte, max, &rrp->array[0]);
+  if (st) return st;
+
+  st= pap_domain(pai, &cbyte, max, &rrp->array[1], pdf_quoteok);
+  if (st) return st;
+
+  if (cbyte != max) return adns_s_invaliddata;
+  return adns_s_ok;
 }
 
-static void mf_intstr(adns_query qu, void *datap) {
-  adns_rr_intstr *rrp= datap;
+/*
+ * _soa   (pa,mf,cs)
+ */
 
-  adns__makefinal_str(qu,&rrp->str);
+static adns_status pa_soa(const parseinfo *pai, int cbyte, int max, void *datap) {
+  adns_rr_soa *rrp= datap;
+  const byte *dgram= pai->dgram;
+  adns_status st;
+  int msw, lsw, i;
+
+  st= pap_domain(pai, &cbyte, max, &rrp->mname,
+		 pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
+  if (st) return st;
+
+  st= pap_mailbox(pai, &cbyte, max, &rrp->rname);
+  if (st) return st;
+
+  if (cbyte+20 != max) return adns_s_invaliddata;
+  
+  for (i=0; i<5; i++) {
+    GET_W(cbyte,msw);
+    GET_W(cbyte,lsw);
+    (&rrp->serial)[i]= (msw<<16) | lsw;
+  }
+
+  return adns_s_ok;
 }
 
-static void mf_manyistr(adns_query qu, void *datap) {
-  adns_rr_intstr **rrp= datap;
-  adns_rr_intstr *te, *table;
-  void *tablev;
-  int tc;
+static void mf_soa(adns_query qu, void *datap) {
+  adns_rr_soa *rrp= datap;
 
-  for (tc=0, te= *rrp; te->i >= 0; te++, tc++);
-  tablev= *rrp;
-  adns__makefinal_block(qu,&tablev,sizeof(*te)*(tc+1));
-  *rrp= table= tablev;
-  for (te= *rrp; te->i >= 0; te++)
-    adns__makefinal_str(qu,&te->str);
+  adns__makefinal_str(qu,&rrp->mname);
+  adns__makefinal_str(qu,&rrp->rname);
 }
 
+static adns_status cs_soa(vbuf *vb, const void *datap) {
+  const adns_rr_soa *rrp= datap;
+  char buf[20];
+  int i;
+  adns_status st;
+  
+  st= csp_qstring(vb,rrp->mname);  if (st) return st;
+  CSP_ADDSTR(" ");
+  st= csp_qstring(vb,rrp->rname);  if (st) return st;
+
+  for (i=0; i<5; i++) {
+    sprintf(buf," %lu",(&rrp->serial)[i]);
+    CSP_ADDSTR(buf);
+  }
+
+  return adns_s_ok;
+}
+
+/*
+ * _flat   (mf)
+ */
+
 static void mf_flat(adns_query qu, void *data) { }
 
-#define TYPE_SF(size,func,cp,free) size, pa_##func, mf_##free, cs_##cp
-#define TYPE_SN(size,func,cp)      size, pa_##func, mf_flat, cs_##cp
+/*
+ * Now the table.
+ */
+
 #define TYPESZ_M(member)           (sizeof(*((adns_answer*)0)->rrs.member))
-#define TYPE_MF(memb,parse)        TYPE_SF(TYPESZ_M(memb),parse,memb,memb)
-#define TYPE_MN(memb,parse)        TYPE_SN(TYPESZ_M(memb),parse,memb)
 
 #define DEEP_MEMB(memb) TYPESZ_M(memb), mf_##memb, cs_##memb
 #define FLAT_MEMB(memb) TYPESZ_M(memb), mf_flat, cs_##memb
 
-/* TYPE_<ms><nf>
- *  ms is M  specify member name
- *     or S  specify size explicitly
- *  nf is F  full memory management, dependent on member name or specified func
- *        N  no memory management required
- */
+#define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer) \
+ { adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_##memb, cs_##memb, parser, comparer }
+#define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer) \
+ { adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_flat, cs_##memb, parser, comparer }
 
 static const typeinfo typeinfos[] = {
-  /* Must be in ascending order of rrtype ! */
-  /* rr type code   rrt     fmt      mem.mgmt  member      parser         comparer */
-  
-  { adns_r_a,       "A",     0,      FLAT_MEMB(inaddr),    pa_inaddr,     di_inaddr  },
-  { adns_r_ns_raw,  "NS",   "raw",   DEEP_MEMB(str),       pa_host_raw,   0          },
-  { adns_r_cname,   "CNAME", 0,      DEEP_MEMB(str),       pa_host_raw,   0          },
-#if 0 /*fixme*/	    	                    	       	  		   
-  { adns_r_soa_raw, "SOA",  "raw",   DEEP_MEMB(soa),       pa_soa,        0          },
-#endif
-  { adns_r_ptr_raw, "PTR",  "raw",   DEEP_MEMB(str),       pa_host_raw,   0          },
-#if 0 /*fixme*/	    	                    	       	  		   
-  { adns_r_hinfo,   "HINFO", 0,      DEEP_MEMB(strpair),   pa_hinfo,      0          },
-#endif
-  { adns_r_mx_raw,  "MX",   "raw",   DEEP_MEMB(intstr),    pa_mx_raw,     di_mx_raw  },
-  { adns_r_txt,     "TXT",   0,      DEEP_MEMB(manyistr),  pa_txt,        0          },
-#if 0 /*fixme*/	    	                    	       	  		   
-  { adns_r_rp_raw,  "RP",   "raw",   DEEP_MEMB(strpair),   pa_rp,         0          },
-#endif
-   		      	                                  		   
-  { adns_r_addr,    "A",  "addr",    FLAT_MEMB(addr),      pa_addr,       di_addr    },
-#if 0 /*fixme*/	    	                    	       	  		   
-  { adns_r_ns,      "NS", "+addr",   DEEP_MEMB(dmaddr),    pa_dmaddr,     di_dmaddr  },
-  { adns_r_ptr,     "PTR","checked", DEEP_MEMB(str),       pa_ptr,        0          },
-  { adns_r_mx,      "MX", "+addr",   DEEP_MEMB(intdmaddr), pa_mx,         di_mx      },
+/* Must be in ascending order of rrtype ! */
+/* mem-mgmt code     rrt     fmt      member       parser        comparer    */
+  							     
+  FLAT_TYPE(a,       "A",     0,      inaddr,      pa_inaddr,    di_inaddr   ),
+  DEEP_TYPE(ns_raw,  "NS",   "raw",   str,         pa_host_raw,  0           ),
+  DEEP_TYPE(cname,   "CNAME", 0,      str,         pa_host_raw,  0           ),
+  DEEP_TYPE(soa_raw, "SOA",  "raw",   soa,         pa_soa,       0           ),
+  DEEP_TYPE(ptr_raw, "PTR",  "raw",   str,         pa_host_raw,  0           ),
+  DEEP_TYPE(hinfo,   "HINFO", 0,      intstrpair,  pa_hinfo,     0           ),
+  DEEP_TYPE(mx_raw,  "MX",   "raw",   intstr,      pa_mx_raw,    di_mx_raw   ),
+  DEEP_TYPE(txt,     "TXT",   0,      manyistr,    pa_txt,       0           ),
+  DEEP_TYPE(rp_raw,  "RP",   "raw",   strpair,     pa_rp,        0           ),
+   		      	                                     		  	     
+  FLAT_TYPE(addr,    "A",  "addr",    addr,        pa_addr,      di_addr     ),
+  DEEP_TYPE(ns,      "NS", "+addr",   hostaddr,    pa_hostaddr,  di_hostaddr ),
+  DEEP_TYPE(ptr,     "PTR","checked", str,         pa_ptr,       0           ),
+  DEEP_TYPE(mx,      "MX", "+addr",   inthostaddr, pa_mx,        di_mx       ),
    		      	                                  		   
-#endif
-#if 0 /*fixme*/
-  { adns_r_soa,     "SOA",  "822",   DEEP_MEMB(soa),       pa_soa,        0          },
-  { adns_r_rp,      "RP",   "822",   DEEP_MEMB(strpair),   pa_rp,         0          },
-#endif
+  DEEP_TYPE(soa,     "SOA","822",     soa,         pa_soa,       0           ),
+  DEEP_TYPE(rp,      "RP", "822",     strpair,     pa_rp,        0           ),
 };
 
 const typeinfo *adns__findtype(adns_rrtype type) {