unknown rr types seem to work

[adns.git] / src / adns.h

diff --git a/src/adns.h b/src/adns.h
index 9be8b68d0b327d1bc8b15c2cef0ba1864254a3ad..a29b568f33b8061de88e54b3883eb9d914f61557 100644 (file)
--- a/src/adns.h
+++ b/src/adns.h
@@ -75,7 +75,8 @@ extern "C" { /* I really dislike this - iwj. */
 typedef struct adns__state *adns_state;
 typedef struct adns__query *adns_query;
 
-typedef enum {
+typedef enum { /* In general, or together the desired flags: */
+ adns_if_none=        0x0000,/* no flags.  nicer than 0 for some compilers */
  adns_if_noenv=       0x0001,/* do not look at environment */
  adns_if_noerrprint=  0x0002,/* never print to stderr (_debug overrides) */
  adns_if_noserverwarn=0x0004,/* do not warn to stderr about duff servers etc */
@@ -88,7 +89,8 @@ typedef enum {
  adns_if_checkc_freq= 0x0300 /* consistency checks very frequently (slow!) */
 } adns_initflags;
 
-typedef enum {
+typedef enum { /* In general, or together the desired flags: */
+ adns_qf_none=           0x00000000,/* no flags */
  adns_qf_search=         0x00000001,/* use the searchlist */
  adns_qf_usevc=          0x00000002,/* use a virtual circuit (TCP conn) */
  adns_qf_owner=          0x00000004,/* fill in the owner field in the answer */
@@ -102,10 +104,28 @@ typedef enum {
 } adns_queryflags;
 
 typedef enum {
- adns__rrt_typemask=0x0ffff,
- adns__qtf_deref=   0x10000, /* dereference domains; perhaps get extra data */
- adns__qtf_mail822= 0x20000, /* return mailboxes in RFC822 rcpt field fmt   */
-                    
+ adns_rrt_typemask=  0x0ffff,
+ adns__qtf_deref=    0x10000,/* dereference domains; perhaps get extra data */
+ adns__qtf_mail822=  0x20000,/* return mailboxes in RFC822 rcpt field fmt   */
+
+ adns_r_unknown=     0x40000,
+   /* To use this, ask for records of type   <rr-type-code>|adns_r_unknown.
+    * adns will not process the RDATA - you'll get adns_rr_byteblocks,
+    * where the int is the length and the unsigned char* points to the
+    * data.  String representation of the RR data (by adns_rrinfo) is as in
+    * RFC3597.  adns_rr_info will not return the type name in *rrtname_r
+    * (due to memory management problems); *fmtname_r will be set to
+    * "unknown".
+    *
+    * Do not specify adns_r_unknown along with a known RR type which
+    * requires domain name uncompression (see RFC3597 s4); domain names
+    * will not be uncompressed and the resulting data would be useless.
+    * Asking for meta-RR types via adns_r_unknown will not work properly
+    * either and may make adns complain about server misbehaviour, so don't
+    * do that.
+    *
+    * Don't forget adns_qf_quoteok if that's what you want. */
+
  adns_r_none=             0,
                     
  adns_r_a=                1,
@@ -118,7 +138,7 @@ typedef enum {
  adns_r_soa_raw=          6,
  adns_r_soa=                 adns_r_soa_raw|adns__qtf_mail822, 
                     
- adns_r_ptr_raw=         12,
+ adns_r_ptr_raw=         12, /* do not mind PTR with wrong or missing A */
  adns_r_ptr=                 adns_r_ptr_raw|adns__qtf_deref,
                     
  adns_r_hinfo=           13,  
@@ -130,6 +150,12 @@ typedef enum {
                     
  adns_r_rp_raw=          17,
  adns_r_rp=                  adns_r_rp_raw|adns__qtf_mail822,
+
+ /* For SRV records, query domain without _qf_quoteok_query must look
+  * as expected from SRV RFC with hostname-like Name.  _With_
+  * _quoteok_query, any query domain is allowed. */
+ adns_r_srv_raw=         33,
+ adns_r_srv=                 adns_r_srv_raw|adns__qtf_deref,
                     
  adns_r_addr=                adns_r_a|adns__qtf_deref
  
@@ -299,6 +325,21 @@ typedef struct {
   unsigned long serial, refresh, retry, expire, minimum;
 } adns_rr_soa;
 
+typedef struct {
+  int priority, weight, port;
+  char *host;
+} adns_rr_srvraw;
+
+typedef struct {
+  int priority, weight, port;
+  adns_rr_hostaddr ha;
+} adns_rr_srvha;
+
+typedef struct {
+  int len;
+  unsigned char *data;
+} adns_rr_byteblock;
+
 typedef struct {
   adns_status status;
   char *cname; /* always NULL if query was for CNAME records */
@@ -319,6 +360,9 @@ typedef struct {
     adns_rr_inthostaddr *inthostaddr;/* mx */
     adns_rr_intstr *intstr;          /* mx_raw */
     adns_rr_soa *soa;                /* soa, soa_raw */
+    adns_rr_srvraw *srvraw;          /* srv_raw */
+    adns_rr_srvha *srvha;/* srv */
+    adns_rr_byteblock *byteblock;    /* ...|unknown */
   } rrs;
 } adns_answer;
 
@@ -338,7 +382,8 @@ typedef struct {
  *
  *  For _init, _init_strcfg, _submit and _synchronous, system errors
  *  (eg, failure to create sockets, malloc failure, etc.) return errno
- *  values.
+ *  values.  EINVAL from _init et al means the configuration file
+ *  is erroneous and cannot be parsed.
  * 
  *  For _wait and _check failures are reported in the answer
  *  structure, and only 0, ESRCH or (for _check) EAGAIN is