From 0009def716810b2f67f729cedf75942b5d3384c7 Mon Sep 17 00:00:00 2001
From: Pierangelo Masarati <ando@openldap.org>
Date: Mon, 8 Sep 2008 00:10:18 +0000
Subject: [PATCH] implement X-SUBST substitute syntax extension (ITS#5663)

---
 servers/slapd/schemaparse.c |  2 ++
 servers/slapd/slap.h        |  2 ++
 servers/slapd/syntax.c      | 41 +++++++++++++++++++++++++++++++++++++
 3 files changed, 45 insertions(+)

diff --git a/servers/slapd/schemaparse.c b/servers/slapd/schemaparse.c
index c02fdea215..fa9cb2ee07 100644
--- a/servers/slapd/schemaparse.c
+++ b/servers/slapd/schemaparse.c
@@ -50,6 +50,8 @@ static char *const err2text[] = {
 	"Syntax not found",
 	"Duplicate ldapSyntax",
 	"Superior syntax not found",
+	"Substitute syntax not specified",
+	"Substitute syntax not found",
 	"OID or name required",
 	"Qualifier not supported",
 	"Invalid NAME",
diff --git a/servers/slapd/slap.h b/servers/slapd/slap.h
index 95c4e898ac..4b5e84dfd7 100644
--- a/servers/slapd/slap.h
+++ b/servers/slapd/slap.h
@@ -300,6 +300,8 @@ enum {
 	SLAP_SCHERR_SYN_NOT_FOUND,
 	SLAP_SCHERR_SYN_DUP,
 	SLAP_SCHERR_SYN_SUP_NOT_FOUND,
+	SLAP_SCHERR_SYN_SUBST_NOT_SPECIFIED,
+	SLAP_SCHERR_SYN_SUBST_NOT_FOUND,
 	SLAP_SCHERR_NO_NAME,
 	SLAP_SCHERR_NOT_SUPPORTED,
 	SLAP_SCHERR_BAD_DESCR,
diff --git a/servers/slapd/syntax.c b/servers/slapd/syntax.c
index 85025683ec..c7089acc45 100644
--- a/servers/slapd/syntax.c
+++ b/servers/slapd/syntax.c
@@ -190,6 +190,47 @@ syn_add(
 	ssyn->ssyn_str2ber = def->sd_str2ber;
 #endif
 
+	if ( def->sd_validate == NULL && def->sd_pretty == NULL && syn->syn_extensions != NULL ) {
+		LDAPSchemaExtensionItem **lsei;
+		Syntax *subst = NULL;
+
+		for ( lsei = syn->syn_extensions; *lsei != NULL; lsei++) {
+			if ( strcmp( (*lsei)->lsei_name, "X-SUBST" ) != 0 ) {
+				continue;
+			}
+
+			assert( (*lsei)->lsei_values != NULL );
+			if ( (*lsei)->lsei_values[0] == '\0'
+				|| (*lsei)->lsei_values[1] != '\0' )
+			{
+				Debug( LDAP_DEBUG_ANY, "syn_add(%s): exactly one substitute syntax must be present\n",
+					ssyn->ssyn_syn.syn_oid, 0, 0 );
+				return SLAP_SCHERR_SYN_SUBST_NOT_SPECIFIED;
+			}
+
+			subst = syn_find( (*lsei)->lsei_values[0] );
+			if ( subst == NULL ) {
+				Debug( LDAP_DEBUG_ANY, "syn_add(%s): substitute syntax %s not found\n",
+					ssyn->ssyn_syn.syn_oid, (*lsei)->lsei_values[0], 0 );
+				return SLAP_SCHERR_SYN_SUBST_NOT_FOUND;
+			}
+			break;
+		}
+
+		if ( subst != NULL ) {
+			ssyn->ssyn_flags = subst->ssyn_flags;
+			ssyn->ssyn_validate = subst->ssyn_validate;
+			ssyn->ssyn_pretty = subst->ssyn_pretty;
+
+			ssyn->ssyn_sups = NULL;
+
+#ifdef SLAPD_BINARY_CONVERSION
+			ssyn->ssyn_ber2str = subst->ssyn_ber2str;
+			ssyn->ssyn_str2ber = subst->ssyn_str2ber;
+#endif
+		}
+	}
+
 	if ( def->sd_sups != NULL ) {
 		int	cnt;
 
-- 
2.39.5