Abortive TXT handling.

[adns] / src / query.c

diff --git a/src/query.c b/src/query.c
index f8feef7dae6c82171edd0d332ed6b93747459837..27eb2218cade44430e8d5e2695da2313b5b244f0 100644 (file)
--- a/src/query.c
+++ b/src/query.c
@@ -73,12 +73,17 @@ int adns__internal_submit(adns_state ads, adns_query *query_r,
   
   *query_r= qu;
 
   
   *query_r= qu;
 

-  qu->query_dgram= malloc(qumsg_vb->used);
-  if (!qu->query_dgram) {
-    adns__query_fail(qu,adns_s_nolocalmem);
-    return adns_s_ok;
+  qu->query_dglen= qumsg_vb->used;
+  if (qumsg_vb->used) {
+    qu->query_dgram= malloc(qumsg_vb->used);
+    if (!qu->query_dgram) {
+      adns__query_fail(qu,adns_s_nolocalmem);
+      return adns_s_ok;
+    }
+    memcpy(qu->query_dgram,qumsg_vb->buf,qumsg_vb->used);
+  } else {
+    qu->query_dgram= 0;

   }
   }

-  memcpy(qu->query_dgram,qumsg_vb->buf,qumsg_vb->used);

   qu->vb= *qumsg_vb;
   adns__vbuf_init(qumsg_vb);
   
   qu->vb= *qumsg_vb;
   adns__vbuf_init(qumsg_vb);
   


@@ -121,7 +126,7 @@ int adns_submit(adns_state ads,
   adns__vbuf_init(&vb);
 
   ol= strlen(owner);
   adns__vbuf_init(&vb);
 
   ol= strlen(owner);

-  if (ol<=1 || ol>DNS_MAXDOMAIN+1) { stat= adns_s_invaliddomain; goto xit; }
+  if (ol<=1 || ol>DNS_MAXDOMAIN+1) { stat= adns_s_domaintoolong; goto xit; }

                                 
   if (owner[ol-1]=='.' && owner[ol-2]!='\\') { flags &= ~adns_qf_search; ol--; }
 
                                 
   if (owner[ol-1]=='.' && owner[ol-2]!='\\') { flags &= ~adns_qf_search; ol--; }
 


@@ -153,22 +158,31 @@ void adns_cancel(adns_query query) {
   abort(); /* fixme */
 }
 
   abort(); /* fixme */
 }
 

-void *adns__alloc_interim(adns_query qu, size_t sz) {
+static void *alloc_common(adns_query qu, size_t sz) {

   allocnode *an;
 
   allocnode *an;
 

+  if (!sz) return qu; /* Any old pointer will do */

   assert(!qu->final_allocspace);
   assert(!qu->final_allocspace);

-  sz= MEM_ROUND(sz);

   an= malloc(MEM_ROUND(MEM_ROUND(sizeof(*an)) + sz));
   if (!an) {
     adns__query_fail(qu,adns_s_nolocalmem);
     return 0;
   }
   an= malloc(MEM_ROUND(MEM_ROUND(sizeof(*an)) + sz));
   if (!an) {
     adns__query_fail(qu,adns_s_nolocalmem);
     return 0;
   }

-  qu->interim_allocd += sz;

   an->next= qu->allocations;
   qu->allocations= an;
   return (byte*)an + MEM_ROUND(sizeof(*an));
 }
 
   an->next= qu->allocations;
   qu->allocations= an;
   return (byte*)an + MEM_ROUND(sizeof(*an));
 }
 

+void *adns__alloc_interim(adns_query qu, size_t sz) {
+  sz= MEM_ROUND(sz);
+  qu->interim_allocd += sz;
+  return alloc_common(qu,sz);
+}
+
+void *adns__alloc_mine(adns_query qu, size_t sz) {
+  return alloc_common(qu,MEM_ROUND(sz));
+}
+

 void *adns__alloc_final(adns_query qu, size_t sz) {
   /* When we're in the _final stage, we _subtract_ from interim_alloc'd
    * each allocation, and use final_allocspace to point to the next free
 void *adns__alloc_final(adns_query qu, size_t sz) {
   /* When we're in the _final stage, we _subtract_ from interim_alloc'd
    * each allocation, and use final_allocspace to point to the next free


@@ -186,7 +200,7 @@ void *adns__alloc_final(adns_query qu, size_t sz) {
 }
 
 void adns__reset_cnameonly(adns_query qu) {
 }
 
 void adns__reset_cnameonly(adns_query qu) {

-  assert(qu->final_allocspace);
+  assert(!qu->final_allocspace);

   qu->answer->nrrs= 0;
   qu->answer->rrs= 0;
   qu->interim_allocd= qu->answer->cname ? MEM_ROUND(strlen(qu->answer->cname)+1) : 0;
   qu->answer->nrrs= 0;
   qu->answer->rrs= 0;
   qu->interim_allocd= qu->answer->cname ? MEM_ROUND(strlen(qu->answer->cname)+1) : 0;


@@ -228,6 +242,7 @@ void adns__makefinal_str(adns_query qu, char **strp) {
   char *before, *after;
 
   before= *strp;
   char *before, *after;
 
   before= *strp;

+  if (!before) return;

   l= strlen(before)+1;
   after= adns__alloc_final(qu,l);
   memcpy(after,before,l);
   l= strlen(before)+1;
   after= adns__alloc_final(qu,l);
   memcpy(after,before,l);


@@ -235,10 +250,12 @@ void adns__makefinal_str(adns_query qu, char **strp) {
 }
 
 void adns__makefinal_block(adns_query qu, void **blpp, size_t sz) {
 }
 
 void adns__makefinal_block(adns_query qu, void **blpp, size_t sz) {

-  void *after;
+  void *before, *after;

 
 

+  before= *blpp;
+  if (!before) return;

   after= adns__alloc_final(qu,sz);
   after= adns__alloc_final(qu,sz);

-  memcpy(after,*blpp,sz);
+  memcpy(after,before,sz);

   *blpp= after;
 }
 
   *blpp= after;
 }