Merge branch 'master' of ephedra:usr/src/qmail into e_master

1 files changed, 17 insertions, 2 deletions

diff --git a/ucspi-tcp-0.88/dns_name.c b/ucspi-tcp-0.88/dns_name.c
index dcb10c7..1f03186 100644
--- a/ucspi-tcp-0.88/dns_name.c
+++ b/ucspi-tcp-0.88/dns_name.c
@@ -2,10 +2,11 @@
 #include "uint16.h"
 #include "byte.h"
 #include "dns.h"
+#include "ip6.h"
 
 static char *q = 0;
 
-int dns_name_packet(stralloc *out,char *buf,unsigned int len)
+int dns_name_packet(stralloc *out,const char *buf,unsigned int len)
 {
   unsigned int pos;
   char header[12];
@@ -35,7 +36,7 @@ int dns_name_packet(stralloc *out,char *buf,unsigned int len)
   return 0;
 }
 
-int dns_name4(stralloc *out,char ip[4])
+int dns_name4(stralloc *out,const char ip[4])
 {
   char name[DNS_NAME4_DOMAIN];
 
@@ -46,3 +47,17 @@ int dns_name4(stralloc *out,char ip[4])
   dns_domain_free(&q);
   return 0;
 }
+
+int dns_name6(stralloc *out,char ip[16])
+{
+  char name[DNS_NAME6_DOMAIN];
+
+  if (ip6_isv4mapped(ip))
+    return dns_name4(out,ip+12);
+  dns_name6_domain(name,ip);
+  if (dns_resolve(name,DNS_T_PTR) == -1) return -1;
+  if (dns_name_packet(out,dns_resolve_tx.packet,dns_resolve_tx.packetlen) == -1) return -1;
+  dns_transmit_free(&dns_resolve_tx);
+  dns_domain_free(&q);
+  return 0;
+}