/**/
-#include "adns-internal.h"
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
-static adns_query allocquery(adns_state ads, const char *owner, int ol,
- int qml, int id, adns_rrtype type,
- adns_queryflags flags, void *context) {
+#include <sys/time.h>
+
+#include "internal.h"
+
+int adns__internal_submit(adns_state ads, adns_query *query_r,
+ adns_rrtype type, char *query_dgram, int query_len,
+ adns_queryflags flags, struct timeval now,
+ adns_status failstat, 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; memory for it
+ * is taken over by this routine whether it succeeds or fails.
+ *
+ * If failstat is nonzero then if we are successful in creating the query
+ * it is immediately failed with code failstat (but _submit still succeds).
+ *
+ * ctx is copied byte-for-byte into the query.
+ */
adns_query qu;
- unsigned char *qm;
-
- qu= malloc(sizeof(*qu)+ol+1+qml); if (!qu) return 0;
- qu->next= qu->back= qu->parent= 0;
- qu->children.head= qu->children.tail= 0;
+ adns_status stat;
+ int ol, id, r;
+ struct timeval now;
+ const typeinfo *typei;
+ adns_query qu;
+
+ id= ads->nextid++;
+
+ qu= malloc(sizeof(*qu)); if (!qu) goto x_nomemory;
+ qu->answer= malloc(sizeof(*qu->answer)); if (!qu->answer) goto x_freequ_nomemory;
+
+ qu->state= query_udp;
+ qu->back= qu->next= qu->parent= 0;
+ LIST_INIT(qu->children);
qu->siblings.next= qu->siblings.back= 0;
+ qu->allocations= 0;
+ qu->interim_allocd= 0;
+ qu->perm_used= 0;
+
+ qu->typei= adns__findtype(type);
+ qu->query_dgram= query_dgram;
+ qu->query_dglen= query_dglen;
+ adns__vbuf_init(&qu->vb);
+
+ qu->cname_dgram= 0;
+ qu->cname_dglen= qu->cname_begin= 0;
+
qu->id= id;
- qu->type= type;
- qu->answer= 0;
qu->flags= flags;
- qu->context= context;
qu->udpretries= 0;
- qu->sentudp= qu->senttcp= 0;
- qu->nextserver= 0;
+ qu->udpnextserver= 0;
+ qu->udpsent= qu->tcpfailed= 0;
+ timerclear(&qu->timeout);
+ memcpy(&qu->context,ctx,sizeof(qu->context));
memcpy(qu->owner,owner,ol); qu->owner[ol]= 0;
- qu->querymsg= qm= qu->owner+ol+1;
- memcpy(qm,ads->qbuf,qml);
- qu->querylen= qml;
- return qu;
-}
-static int failsubmit(adns_state ads, void *context, adns_query *query_r,
- adns_rrtype type, adns_queryflags flags,
- int id, adns_status stat) {
- adns_query qu;
+ qu->answer->status= adns_s_ok;
+ qu->answer->cname= 0;
+ qu->answer->type= type;
+ qu->answer->nrrs= 0;
+ qu->answer->rrs= 0;
- qu= allocquery(ads,0,0,0,id,type,flags,context); if (!qu) return errno;
- query_fail(ads,qu,stat);
*query_r= qu;
+
+ if (qu->typei) {
+ qu->answer->rrsz= qu->rrsz;
+ } else {
+ qu->answer->rrsz= -1;
+ failstat= adns_s_notimplemented;
+ }
+ if (failstat) {
+ adns__query_fail(ads,qu,failstat);
+ return;
+ }
+
+ adns__query_udp(ads,qu,now);
+ adns__autosys(ads,now);
+
return 0;
+
+ x_freequ_nomemory:
+ free(qu);
+ x_nomemory:
+ free(query_dgram);
+ return adns_s_nomemory;
}
int adns_submit(adns_state ads,
adns_queryflags flags,
void *context,
adns_query *query_r) {
- adns_query qu;
- adns_status stat;
- int ol, id, qml;
-
- id= ads->nextid++;
+ qcontext ctx;
+ ctx.ext= context;
r= gettimeofday(&now,0); if (r) return errno;
ol= strlen(owner);
- if (ol<=1 || ol>MAXDNAME+1)
- return failsubmit(ads,context,query_r,type,flags,id,adns_s_invaliddomain);
- if (owner[ol-1]=='.' && owner[ol-2]!='\\') { flags &= ~adns_f_search; ol--; }
-
- stat= adns__mkquery(ads,owner,ol,id,type,flags,&qml);
- if (stat) return failsubmit(ads,context,query_r,type,flags,id,stat);
+ if (ol<=1 || ol>DNS_MAXDOMAIN+1)
+ return failsubmit(ads,context,query_r,flags,id,adns_s_invaliddomain);
+ if (owner[ol-1]=='.' && owner[ol-2]!='\\') { flags &= ~adns_qf_search; ol--; }
- qu= allocquery(ads,owner,ol,qml,id,type,flags,context); if (!qu) return errno;
- adns__query_udp(ads,qu,now);
- autosys(ads,now);
-
- *query_r= qu;
- return 0;
+ stat= adns__mkquery(ads,owner,ol,id,typei,flags);
+ if (stat) return failsubmit(ads,context,query_r,flags,id,stat);
+
+ adns__internal_submit(ads,type,flags,now,query_r
}
int adns_synchronous(adns_state ads,
}
void adns_cancel(adns_state ads, adns_query query) {
- abort(); /* FIXME */
+ abort(); /* fixme */
+}
+
+void *adns__alloc_interim(adns_state ads, adns_query qu, size_t sz) {
+ allocnode *an;
+
+ sz= MEM_ROUND(sz);
+ an= malloc(MEM_ROUND(MEM_ROUND(sizeof(*an)) + sz));
+ if (!an) {
+ adns__query_fail(ads,qu,adns_s_nolocalmem);
+ return 0;
+ }
+ qu->permalloclen += sz;
+ an->next= qu->allocations;
+ qu->allocations= an;
+ return (byte*)an + MEM_ROUND(sizeof(*an));
}
~mdw / adns / blobdiff