Thanks! And nice const-correctness :-) There are a couple of missing const
qualifiers - see below.

Tony.
-- 
f.anthony.n.finch  <dot@dotat.at>  http://dotat.at/  -  I xn--zr8h punycode
Humber, Thames, Dover: West 4 or 5, becoming variable 3 or 4 later. Slight,
occasionally moderate at first in Humber. Fair. Good, occasionally moderate
later.


diff --git a/bin/tools/nsec3hash.c b/bin/tools/nsec3hash.c
index 93bfbab..a1c40f5 100644
--- a/bin/tools/nsec3hash.c
+++ b/bin/tools/nsec3hash.c
@@ -70,7 +70,7 @@ typedef void nsec3printer(unsigned algo, unsigned flags, unsigned iters,
 			  const char *digest);

 static void
-nsec3hash(nsec3printer *nsec3print, char *algostr, char *flagstr,
+nsec3hash(nsec3printer *nsec3print, const char *algostr, const char *flagstr,
 	  const char *iterstr, const char *saltstr, const char *domain)
 {
 	dns_fixedname_t fixed;