dns: moving name_equal func into common

This function is duplicated in the BIND9 and RPC DNS servers.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=10812

Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

6 files changed, 22 insertions, 39 deletions

diff --git a/source4/dns_server/dlz_bind9.c b/source4/dns_server/dlz_bind9.c
index 0463c6e47a6..e55d73ba50f 100644
--- a/source4/dns_server/dlz_bind9.c
+++ b/source4/dns_server/dlz_bind9.c
@@ -38,7 +38,7 @@
 #include <popt.h>
 #include "lib/util/dlinklist.h"
 #include "dlz_minimal.h"
-#include "dns_server/dnsserver_common.h"
+#include "dnsserver_common.h"
 
 struct b9_options {
 	const char *url;
@@ -1482,25 +1482,6 @@ _PUBLIC_ isc_boolean_t dlz_ssumatch(const char *signer, const char *name, const
 }
 
 /*
-  see if two DNS names are the same
- */
-static bool dns_name_equal(const char *name1, const char *name2)
-{
-	size_t len1 = strlen(name1);
-	size_t len2 = strlen(name2);
-	if (name1[len1 - 1] == '.') {
-		len1--;
-	}
-	if (name2[len2 - 1] == '.') {
-		len2--;
-	}
-	if (len1 != len2) {
-		return false;
-	}
-	return strncasecmp_m(name1, name2, len1) == 0;
-}
-
-/*
   see if two dns records match
  */
 static bool b9_record_match(struct dlz_bind9_data *state,
diff --git a/source4/dns_server/dns_server.h b/source4/dns_server/dns_server.h
index 05ef302680f..48dd5ff8185 100644
--- a/source4/dns_server/dns_server.h
+++ b/source4/dns_server/dns_server.h
@@ -82,7 +82,6 @@ WERROR dns_server_process_update(struct dns_server *dns,
 				 struct dns_res_rec **updates,    uint16_t *update_count,
 				 struct dns_res_rec **additional, uint16_t *arcount);
 
-bool dns_name_equal(const char *name1, const char *name2);
 bool dns_records_match(struct dnsp_DnssrvRpcRecord *rec1,
 		       struct dnsp_DnssrvRpcRecord *rec2);
 bool dns_authoritative_for_zone(struct dns_server *dns,
diff --git a/source4/dns_server/dnsserver_common.c b/source4/dns_server/dnsserver_common.c
index 6c7ab802575..20eaf125ada 100644
--- a/source4/dns_server/dnsserver_common.c
+++ b/source4/dns_server/dnsserver_common.c
@@ -1047,3 +1047,23 @@ NTSTATUS dns_common_zones(struct ldb_context *samdb,
 	TALLOC_FREE(frame);
 	return NT_STATUS_OK;
 }
+
+/*
+  see if two DNS names are the same
+ */
+bool dns_name_equal(const char *name1, const char *name2)
+{
+	size_t len1 = strlen(name1);
+	size_t len2 = strlen(name2);
+
+	if (len1 > 0 && name1[len1 - 1] == '.') {
+		len1--;
+	}
+	if (len2 > 0 && name2[len2 - 1] == '.') {
+		len2--;
+	}
+	if (len1 != len2) {
+		return false;
+	}
+	return strncasecmp(name1, name2, len1) == 0;
+}
diff --git a/source4/dns_server/dnsserver_common.h b/source4/dns_server/dnsserver_common.h
index f2be44ff0d6..e37c7b8f9ab 100644
--- a/source4/dns_server/dnsserver_common.h
+++ b/source4/dns_server/dnsserver_common.h
@@ -68,6 +68,7 @@ WERROR dns_common_name2dn(struct ldb_context *samdb,
 			  TALLOC_CTX *mem_ctx,
 			  const char *name,
 			  struct ldb_dn **_dn);
+bool dns_name_equal(const char *name1, const char *name2);
 
 /*
  * For this routine, base_dn is generally NULL.  The exception comes
diff --git a/source4/rpc_server/dnsserver/dnsdata.c b/source4/rpc_server/dnsserver/dnsdata.c
index 6889cc306ce..59e29f029a6 100644
--- a/source4/rpc_server/dnsserver/dnsdata.c
+++ b/source4/rpc_server/dnsserver/dnsdata.c
@@ -1119,23 +1119,6 @@ int dns_name_compare(const struct ldb_message **m1, const struct ldb_message **m
 	return strcasecmp(ptr1, ptr2);
 }
 
-bool dns_name_equal(const char *name1, const char *name2)
-{
-	size_t len1 = strlen(name1);
-	size_t len2 = strlen(name2);
-
-	if (len1 > 0 && name1[len1 - 1] == '.') {
-		len1--;
-	}
-	if (len2 > 0 && name2[len2 - 1] == '.') {
-		len2--;
-	}
-	if (len1 != len2) {
-		return false;
-	}
-	return strncasecmp(name1, name2, len1) == 0;
-}
-
 bool dns_record_match(struct dnsp_DnssrvRpcRecord *rec1, struct dnsp_DnssrvRpcRecord *rec2)
 {
 	bool status;
diff --git a/source4/rpc_server/dnsserver/dnsserver.h b/source4/rpc_server/dnsserver/dnsserver.h
index 6948fb5d42d..93f1d72f2ef 100644
--- a/source4/rpc_server/dnsserver/dnsserver.h
+++ b/source4/rpc_server/dnsserver/dnsserver.h
@@ -190,7 +190,6 @@ char *dns_split_node_name(TALLOC_CTX *mem_ctx, const char *node_name, const char
 
 int dns_name_compare(const struct ldb_message **m1, const struct ldb_message **m2,
 			char *search_name);
-bool dns_name_equal(const char *name1, const char *name2);
 bool dns_record_match(struct dnsp_DnssrvRpcRecord *rec1, struct dnsp_DnssrvRpcRecord *rec2);
 
 void dnsp_to_dns_copy(TALLOC_CTX *mem_ctx, struct dnsp_DnssrvRpcRecord *dnsp,