X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=adns.git;a=blobdiff_plain;f=src%2Fquery.c;h=37306d17d078e8e487f74ff822f5d4d924be318b;hp=3fab80c02f06f37cb2d897669642e52222d8c1b4;hb=fb7fbb6605c88fef770cba4ed4972dbb1212b8d7;hpb=d8c062faeda8147546f1e709171f7f0767331954

diff --git a/src/query.c b/src/query.c
index 3fab80c..37306d1 100644
--- a/src/query.c
+++ b/src/query.c
@@ -5,7 +5,12 @@
  * - query submission and cancellation (user-visible and internal)
  */
 /*
- *  This file is part of adns, which is Copyright (C) 1997-1999 Ian Jackson
+ *  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
@@ -27,7 +32,6 @@
 #include <stdlib.h>
 #include <unistd.h>
 #include <errno.h>
-#include <string.h>
 
 #include <sys/time.h>
 
@@ -64,9 +68,9 @@ static adns_query query_alloc(adns_state ads, const typeinfo *typei,
 
   qu->id= 0;
   qu->flags= flags;
-  qu->udpretries= 0;
+  qu->retries= 0;
   qu->udpnextserver= 0;
-  qu->udpsent= qu->tcpfailed= 0;
+  qu->udpsent= 0;
   timerclear(&qu->timeout);
   qu->expires= now.tv_sec + MAXTTLBELIEVE;
 
@@ -87,7 +91,7 @@ static void query_submit(adns_state ads, adns_query qu,
 			 const typeinfo *typei, vbuf *qumsg_vb, int id,
 			 adns_queryflags flags, struct timeval now) {
   /* Fills in the query message in for a previously-allocated query,
-   * and submits it.  Cannot fail.
+   * and submits it.  Cannot fail.  Takes over the memory for qumsg_vb.
    */
 
   qu->vb= *qumsg_vb;
@@ -101,7 +105,6 @@ static void query_submit(adns_state ads, adns_query qu,
   memcpy(qu->query_dgram,qu->vb.buf,qu->vb.used);
   
   adns__query_send(qu,now);
-  adns__autosys(ads,now);
 }
 
 adns_status adns__internal_submit(adns_state ads, adns_query *query_r,
@@ -128,7 +131,7 @@ static void query_simple(adns_state ads, adns_query qu,
   int id;
   adns_status stat;
 
-  adns__vbuf_init(&vb);
+  vb= qu->vb;
   
   stat= adns__mkquery(ads,&vb,&id, owner,ol, typei,flags);
   if (stat) { adns__query_fail(qu,stat); return; }
@@ -202,8 +205,10 @@ int adns_submit(adns_state ads,
   adns_query qu;
   const char *p;
 
+  adns__consistency(ads,0,cc_entex);
+
   typei= adns__findtype(type);
-  if (!typei) return adns_s_unknownrrtype;
+  if (!typei) return ENOSYS;
 
   r= gettimeofday(&now,0); if (r) goto x_errno;
   qu= query_alloc(ads,typei,flags,now); if (!qu) goto x_errno;
@@ -220,6 +225,7 @@ int adns_submit(adns_state ads,
 				 
   if (ol>=1 && owner[ol-1]=='.' && (ol<2 || owner[ol-2]!='\\')) {
     flags &= ~adns_qf_search;
+    qu->flags= flags;
     ol--;
   }
 
@@ -237,18 +243,43 @@ int adns_submit(adns_state ads,
     }
     query_simple(ads,qu, owner,ol, typei,flags, now);
   }
+  adns__autosys(ads,now);
+  adns__consistency(ads,qu,cc_entex);
   return 0;
 
  x_adnsfail:
   adns__query_fail(qu,stat);
+  adns__consistency(ads,qu,cc_entex);
   return 0;
 
  x_errno:
   r= errno;
   assert(r);
+  adns__consistency(ads,0,cc_entex);
   return r;
 }
 
+int adns_submit_reverse(adns_state ads,
+			const struct sockaddr *addr,
+			adns_rrtype type,
+			adns_queryflags flags,
+			void *context,
+			adns_query *query_r) {
+  const unsigned char *iaddr;
+  char buf[30];
+
+  if (type != adns_r_ptr && type != adns_r_ptr_raw) return EINVAL;
+  flags &= ~adns_qf_search;
+
+  if (addr->sa_family != AF_INET) return ENOSYS;
+  iaddr= (const unsigned char*) &(((const struct sockaddr_in*)addr) -> sin_addr);
+
+  sprintf(buf, "%d.%d.%d.%d.in-addr.arpa",
+	  iaddr[3], iaddr[2], iaddr[1], iaddr[0]);
+
+  return adns_submit(ads,buf,type,flags,context,query_r);
+}
+
 int adns_synchronous(adns_state ads,
 		     const char *owner,
 		     adns_rrtype type,
@@ -342,7 +373,6 @@ static void cancel_children(adns_query qu) {
     ncqu= cqu->siblings.next;
     adns_cancel(cqu);
   }
-  LIST_INIT(qu->children);
 }
 
 void adns__reset_preserved(adns_query qu) {
@@ -358,19 +388,30 @@ static void free_query_allocs(adns_query qu) {
 
   cancel_children(qu);
   for (an= qu->allocations.head; an; an= ann) { ann= an->next; free(an); }
+  LIST_INIT(qu->allocations);
   adns__vbuf_free(&qu->vb);
+  adns__vbuf_free(&qu->search_vb);
+  free(qu->query_dgram);
 }
 
 void adns_cancel(adns_query qu) {
+  adns_state ads;
+
+  ads= qu->ads;
+  adns__consistency(ads,qu,cc_entex);
+  if (qu->parent) LIST_UNLINK_PART(qu->parent->children,qu,siblings.);
   switch (qu->state) {
-  case query_tosend: case query_tcpwait: case query_tcpsent:
-    LIST_UNLINK(qu->ads->timew,qu);
+  case query_tosend:
+    LIST_UNLINK(ads->udpw,qu);
+    break;
+  case query_tcpw:
+    LIST_UNLINK(ads->tcpw,qu);
     break;
-  case query_child:
-    LIST_UNLINK(qu->ads->childw,qu);
+  case query_childw:
+    LIST_UNLINK(ads->childw,qu);
     break;
   case query_done:
-    LIST_UNLINK(qu->ads->output,qu);
+    LIST_UNLINK(ads->output,qu);
     break;
   default:
     abort();
@@ -378,6 +419,7 @@ void adns_cancel(adns_query qu) {
   free_query_allocs(qu);
   free(qu->answer);
   free(qu);
+  adns__consistency(ads,0,cc_entex);
 }
 
 void adns__update_expires(adns_query qu, unsigned long ttl, struct timeval now) {
@@ -460,10 +502,12 @@ void adns__query_done(adns_query qu) {
     LIST_UNLINK(qu->ads->childw,parent);
     qu->ctx.callback(parent,qu);
     free_query_allocs(qu);
+    free(qu->answer);
     free(qu);
   } else {
     makefinal_query(qu);
     LIST_LINK_TAIL(qu->ads->output,qu);
+    qu->state= query_done;
   }
 }