From 29b1e1f0babf07875ecb75a56cc6050ef4c82897 Mon Sep 17 00:00:00 2001
From: Kurt Zeilenga <kurt@openldap.org>
Date: Sat, 23 Jan 1999 19:34:02 +0000
Subject: [PATCH] dn_parent(" ") should be NULL.

---
 servers/slapd/dn.c | 31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/servers/slapd/dn.c b/servers/slapd/dn.c
index ec57f75ec7..54e53bfc35 100644
--- a/servers/slapd/dn.c
+++ b/servers/slapd/dn.c
@@ -157,7 +157,19 @@ dn_parent(
 	char	*s;
 	int	inquote, gotesc;
 
-	if ( dn == NULL || *dn == '\0' || be_issuffix( be, dn ) ) {
+	if( dn == NULL ) {
+		return NULL;
+	}
+
+	while(*dn && SPACE(*dn)) {
+		dn++;
+	}
+
+	if( *dn == '\0' ) {
+		return( NULL );
+	}
+
+	if ( be_issuffix( be, dn ) ) {
 		return( NULL );
 	}
 
@@ -175,7 +187,7 @@ dn_parent(
 		if ( *(s + 1) == '\0' ) {
 			return( NULL );
 		} else {
-			return( ch_strdup( s + 1 ) );
+			return( ch_strdup( &s[1] ) );
 		}
 	}
 
@@ -187,22 +199,25 @@ dn_parent(
 	inquote = 0;
 	for ( s = dn; *s; s++ ) {
 		if ( *s == '\\' ) {
-			if ( *(s + 1) )
+			if ( *(s + 1) ) {
 				s++;
+			}
 			continue;
 		}
 		if ( inquote ) {
-			if ( *s == '"' )
+			if ( *s == '"' ) {
 				inquote = 0;
+			}
 		} else {
-			if ( *s == '"' )
+			if ( *s == '"' ) {
 				inquote = 1;
-			else if ( DNSEPARATOR( *s ) )
-				return( ch_strdup( s + 1 ) );
+			} else if ( DNSEPARATOR( *s ) ) {
+				return( ch_strdup( &s[1] ) );
+			}
 		}
 	}
 
-	return( ch_strdup("") );
+	return( ch_strdup( "" ) );
 }
 
 /*
-- 
2.39.5