1 files changed, 11 insertions, 4 deletions
diff --git a/dnsname.c b/dnsname.c
index 0e5eb26..ff9166d 100644
--- a/dnsname.c
+++ b/dnsname.c
@@ -2,6 +2,7 @@
 #include "exit.h"
 #include "strerr.h"
 #include "ip4.h"
+#include "ip6.h"
 #include "dns.h"
 
 #define FATAL "dnsname: fatal: "
@@ -9,6 +10,7 @@
 static char seed[128];
 
 char ip[4];
+char ip6[16];
 static stralloc out;
 
 int main(int argc,char **argv)
@@ -18,10 +20,15 @@ int main(int argc,char **argv)
   if (*argv) ++argv;
 
   while (*argv) {
-    if (!ip4_scan(*argv,ip))
-      strerr_die3x(111,FATAL,"unable to parse IP address ",*argv);
-    if (dns_name4(&out,ip) == -1)
-      strerr_die4sys(111,FATAL,"unable to find host name for ",*argv,": ");
+    if (ip6_scan(*argv,ip6)) {
+      if (dns_name6(&out,ip6) == -1)
+	strerr_die4sys(111,FATAL,"unable to find host name for ",*argv,": ");
+    } else {
+      if (!ip4_scan(*argv,ip))
+	strerr_die3x(111,FATAL,"unable to parse IP address ",*argv);
+      if (dns_name4(&out,ip) == -1)
+	strerr_die4sys(111,FATAL,"unable to find host name for ",*argv,": ");
+    }
 
     buffer_put(buffer_1,out.s,out.len);
     buffer_puts(buffer_1,"\n");