printrecord.c: Support TXT RR.

printrecord.c

@@ -82,6 +82,28 @@ unsigned int printrecord_cat(stralloc *out,const char *buf,unsigned int len,unsi
       if (!stralloc_catulong0(out,ch,0)) return 0;
     }
   }
+  else if (byte_equal(misc,2,DNS_T_TXT)) {
+    if (!stralloc_cats(out," TXT ")) return 0;
+    while (datalen) {
+      pos = dns_packet_copy(buf,len,pos,misc,1); if (!pos) return 0;
+      datalen--;
+      for (i = (int) misc[0]; i > 0; i--) {
+        pos = dns_packet_copy(buf,len,pos,misc,1); if (!pos) return 0;
+        if ((misc[0] >= 32) && (misc[0] <= 126) && (misc[0] != '\\')) {
+          if (!stralloc_catb(out,misc,1)) return 0;
+        }
+        else {
+          ch = misc[0];
+          misc[3] = '0' + (7 & ch); ch >>= 3;
+          misc[2] = '0' + (7 & ch); ch >>= 3;
+          misc[1] = '0' + (7 & ch);
+          misc[0] = '\\';
+          if (!stralloc_catb(out,misc,4)) return 0;
+        }
+        datalen--;
+      }
+    }
+  }
   else {
     if (!stralloc_cats(out," ")) return 0;
     uint16_unpack_big(misc,&u16);