From: Miek Gieben <miekg@NLnetLabs.nl>
Date: Tue, 1 Mar 2005 12:13:44 +0000 (+0000)
Subject: tolower function
X-Git-Tag: release-0.50~335
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bbd0be919ce425418f1fb89b13be31f1d20f50e2;p=thirdparty%2Fldns.git

tolower function
---

diff --git a/dname.c b/dname.c
index d9490656..7c8e997c 100644
--- a/dname.c
+++ b/dname.c
@@ -112,3 +112,27 @@ ldns_dname_new_frm_str(const char *str)
 	return 
 		ldns_rdf_new_frm_str(str, LDNS_RDF_TYPE_DNAME);
 }
+
+/**
+ * Put a dname into canonical fmt - ie. lowercase it
+ * \param[in] rdf the dname to lowercase
+ * \return the lowercased dname
+ */
+ldns_rdf *
+ldns_dname2canonical(const ldns_rdf *rd)
+{
+	ldns_rdf *new;
+	uint8_t *rdd;
+	uint16_t i;
+
+	if (ldns_rdf_get_type(rd) != LDNS_RDF_TYPE_DNAME) {
+		return NULL;
+	}
+
+	new = ldns_rdf_clone(rd);
+	rdd = (uint8_t*)ldns_rdf_data(rd);
+	for (i = 0; i < ldns_rdf_size(rd); i++, rdd++) {
+		DNAME_NORMALIZE(*rdd);
+	}
+	return new;
+}
diff --git a/ldns/dname.h b/ldns/dname.h
index ea052510..06fd00d5 100644
--- a/ldns/dname.h
+++ b/ldns/dname.h
@@ -16,10 +16,12 @@
 
 #include <ldns/common.h>
 
+#define DNAME_NORMALIZE        tolower
 
 /* prototypes */
 uint8_t         ldns_rdf_dname_label_count(ldns_rdf *);
 ldns_rdf	*ldns_dname_new_frm_str(const char *);
 ldns_rdf 	*ldns_dname_cat(ldns_rdf *, ldns_rdf *);
+ldns_rdf	*ldns_dname_canonical(ldns_rdf *);
 
 #endif	/* !_LDNS_DNAME_H */