adns: Use proper variable for aftry array size calculation

[chiark-tcl.git] / adns / adns.c

diff --git a/adns/adns.c b/adns/adns.c
index 7fe27285b944d06fb4086de731a16a6c7edc3df5..d0ee2955b94e09e26c36acde087faf81212173fd 100644 (file)
--- a/adns/adns.c
+++ b/adns/adns.c
@@ -60,7 +60,7 @@
 
 /*
  * adns.c - adns binding for Tcl
- * Copyright 2006 Ian Jackson
+ * Copyright 2006-2012 Ian Jackson
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -73,9 +73,7 @@
  * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301, USA.
+ * along with this library; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #define _GNU_SOURCE
@@ -198,6 +196,14 @@ struct Resolver {
   Tcl_Obj *errstring_accum;
 };
 
+struct Query {
+  int ix; /* first! */
+  Resolver *res;
+  adns_query aqu;
+  ScriptToInvoke on_yes, on_no, on_fail;
+  Tcl_Obj *xargs;
+};
+
 /* The default resolver is recorded using Tcl_SetAssocData with key
  * ASSOC_DEFAULTRES to record the Resolver*.  If it was explicitly
  * created with `adns new-resolver' then ix will be >=0, and the
@@ -284,6 +290,7 @@ static Resolver *default_resolver(Tcl_Interp *ip) {
 
 static void destroy_resolver(Tcl_Interp *ip, Resolver *res) {
   void *query_v;
+  Query *query;
   int logstring_len;
   char *rstr;
   adns_query aqu;
@@ -305,6 +312,9 @@ static void destroy_resolver(Tcl_Interp *ip, Resolver *res) {
       adns_forallqueries_begin(res->ads);
       aqu= adns_forallqueries_next(res->ads, &query_v);
       if (!aqu) break;
+      query= query_v;
+      assert(query->aqu == aqu);
+      query->aqu= 0; /* avoid disrupting the adns query list */
       asynch_query_dispose(ip, query_v);
     }
     adns_finish(res->ads);
@@ -484,7 +494,7 @@ static int query_submit(Tcl_Interp *ip,
   
   if (op.reverseany || (op.sflags & oisf_reverse)) {
     const int *af;
-    for (af=aftry; af < af + sizeof(af)/sizeof(*af); af++) {
+    for (af=aftry; af < af + sizeof(aftry)/sizeof(*aftry); af++) {
       memset(&sa,0,sizeof(sa));
       sa.sa_family= *af;
       r= inet_pton(*af,domain,&sa);
@@ -522,6 +532,7 @@ static void make_resultstatus(Tcl_Interp *ip, adns_status status,
   results[1]= cht_ret_int(ip, status);
   results[2]= cht_ret_string(ip, adns_errabbrev(status));
   results[3]= cht_ret_string(ip, adns_strerror(status));
+  assert(RESULTSTATUS_LLEN==4);
 }
 
 static Tcl_Obj *make_resultrdata(Tcl_Interp *ip, adns_answer *answer) {
@@ -552,6 +563,7 @@ static void make_resultlist(Tcl_Interp *ip, adns_answer *answer,
   results[4]= cht_ret_string(ip, answer->owner);
   results[5]= cht_ret_string(ip, answer->cname ? answer->cname : "");
   results[6]= make_resultrdata(ip, answer);
+  assert(RESULTLIST_LLEN==7);
 }
 
 /*---------- synchronous query handling ----------*/
@@ -612,14 +624,6 @@ int cht_do_adns_synch(ClientData cd, Tcl_Interp *ip,
 
 /*---------- asynchronous query handling ----------*/
 
-struct Query {
-  int ix; /* first! */
-  Resolver *res;
-  adns_query aqu;
-  ScriptToInvoke on_yes, on_no, on_fail;
-  Tcl_Obj *xargs;
-};
-
 static void asynch_check_now(Resolver *res);
 
 static void asynch_timerhandler(void *res_v) {
@@ -807,10 +811,4 @@ const IdDataSpec cht_adnstcl_queries= {
 
 /*---------- main hooks for tcl ----------*/
 
-int cht_do_adnstoplevel_adns(ClientData cd, Tcl_Interp *ip,
-                     const Adns_SubCommand *subcmd,
-                     int objc, Tcl_Obj *const *objv) {
-  return subcmd->func(0,ip,objc,objv);
-}
-
 CHT_INIT(adns, {}, CHTI_COMMANDS(cht_adnstoplevel_entries))