Can get addresses from Additional and Authority sections, and return

[adns] / src / general.c

diff --git a/src/general.c b/src/general.c
index efad8134c9539f54215f4e55b74b0eded26ce87f..211b6d20586a520aef2c672d4421912c17708d5c 100644 (file)
--- a/src/general.c
+++ b/src/general.c
@@ -22,6 +22,7 @@
  */
 
 #include <stdlib.h>
+#include <string.h>
 
 #include <arpa/inet.h>
 
@@ -46,9 +47,11 @@ void adns__vdiag(adns_state ads, const char *pfx, adns_initflags prevent,
     adns__vbuf_init(&vb);
     fprintf(stderr,"%sQNAME=%s, QTYPE=%s",
            bef,
-           adns__diag_domain(qu->ads,-1,0, &vb,qu->flags,
+           adns__diag_domain(qu->ads,-1,0, &vb,
                              qu->query_dgram,qu->query_dglen,DNS_HDRSIZE),
-           qu->typei ? qu->typei->name : "<unknown>");
+           qu->typei ? qu->typei->rrtname : "<unknown>");
+    if (qu->typei && qu->typei->fmtname)
+      fprintf(stderr,"(%s)",qu->typei->fmtname);
     bef=", "; aft=")\n";
   }
   
@@ -136,11 +139,11 @@ void adns__vbuf_free(vbuf *vb) {
 
 /* Additional diagnostic functions */
 
-const char *adns__diag_domain(adns_state ads, int serv, adns_query qu, vbuf *vb,
-                             int flags, const byte *dgram, int dglen, int cbyte) {
+const char *adns__diag_domain(adns_state ads, int serv, adns_query qu,
+                             vbuf *vb, const byte *dgram, int dglen, int cbyte) {
   adns_status st;
 
-  st= adns__parse_domain(ads,serv,qu,vb, flags,dgram,dglen,&cbyte,dglen);
+  st= adns__parse_domain(ads,serv,qu,vb, pdf_quoteok, dgram,dglen,&cbyte,dglen);
   if (st == adns_s_nolocalmem) {
     return "<cannot report domain... out of memory>";
   }
@@ -159,9 +162,96 @@ const char *adns__diag_domain(adns_state ads, int serv, adns_query qu, vbuf *vb,
   }
   return vb->buf;
 }
-    
+
+adns_status adns_rr_info(adns_rrtype type,
+                        const char **rrtname_r, const char **fmtname_r,
+                        int *len_r,
+                        const void *datap, char **data_r) {
+  const typeinfo *typei;
+  vbuf vb;
+  adns_status st;
+
+  typei= adns__findtype(type);
+  if (!typei) return adns_s_notimplemented;
+
+  if (rrtname_r) *rrtname_r= typei->rrtname;
+  if (fmtname_r) *fmtname_r= typei->fmtname;
+  if (len_r) *len_r= typei->rrsz;
+
+  if (!datap) return adns_s_ok;
+  
+  adns__vbuf_init(&vb);
+  st= typei->convstring(&vb,datap);
+  if (st) goto x_freevb;
+  if (!adns__vbuf_append(&vb,"",1)) { st= adns_s_nolocalmem; goto x_freevb; }
+  assert(strlen(vb.buf) == vb.used-1);
+  *data_r= realloc(vb.buf,vb.used);
+  if (!*data_r) *data_r= vb.buf;
+  return adns_s_ok;
+
+ x_freevb:
+  adns__vbuf_free(&vb);
+  return st;
+}
+
+#define SINFO(n,s) { adns_s_##n, s }
+
+static const struct sinfo {
+  adns_status st;
+  const char *string;
+} sinfos[]= {
+  SINFO(  ok,                  "OK"                                    ),
+  SINFO(  timeout,             "Timed out"                             ),
+  SINFO(  nolocalmem,          "Out of memory"                         ),
+  SINFO(  allservfail,         "No working nameservers"                ),
+  SINFO(  servfail,            "Nameserver failure"                    ),
+  SINFO(  notimplemented,      "Query not implemented"                 ),
+  SINFO(  refused,             "Refused by nameserver"                 ),
+  SINFO(  reasonunknown,       "Reason unknown"                        ),
+  SINFO(  norecurse,           "Recursion denied by nameserver"        ),
+  SINFO(  serverfaulty,        "Nameserver sent bad data"              ),
+  SINFO(  unknownreply,        "Reply from nameserver not understood"  ),
+  SINFO(  invaliddata,         "Invalid data"                          ),
+  SINFO(  inconsistent,        "Inconsistent data"                     ),
+  SINFO(  cname,               "RR refers to an alias"                 ),
+  SINFO(  invalidanswerdomain, "Received syntactically invalid domain" ),
+  SINFO(  nxdomain,            "No such domain"                        ),
+  SINFO(  nodata,              "No such data"                          ),
+  SINFO(  invalidquerydomain,  "Domain syntactically invalid"          ),
+  SINFO(  domaintoolong,       "Domain name too long"                  )
+};
+
+static int si_compar(const void *key, const void *elem) {
+  const adns_status *st= key;
+  const struct sinfo *si= elem;
+
+  return *st < si->st ? -1 : *st > si->st ? 1 : 0;
+}
+
 const char *adns_strerror(adns_status st) {
   static char buf[100];
+
+  const struct sinfo *si;
+
+  si= bsearch(&st,sinfos,sizeof(sinfos)/sizeof(*si),sizeof(*si),si_compar);
+  if (si) return si->string;
+  
   snprintf(buf,sizeof(buf),"code %d",st);
   return buf;
 }
+
+void adns__isort(void *array, int nobjs, int sz, void *tempbuf,
+                int (*needswap)(const void *a, const void *b)) {
+  byte *data= array;
+  int i, place;
+
+  for (i=0; i<nobjs; i++) {
+    for (place= i; place>0 && needswap(data + (place-1)*sz, data + i*sz); place--);
+
+    if (place != i) {
+      memcpy(tempbuf, data + i*sz, sz);
+      memmove(data + (place+1)*sz, data + place*sz, (i-place)*sz);
+      memcpy(data + place*sz, tempbuf, sz);
+    }
+  }
+}