From: Pierangelo Masarati <ando@openldap.org>
Date: Sat, 21 May 2005 14:51:37 +0000 (+0000)
Subject: add comment on slap_dummy_bv
X-Git-Tag: OPENLDAP_AC_BP~622
X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=546cba035cdac4fb7c219facbac3f3912974e5ba;p=openldap

add comment on slap_dummy_bv
---

diff --git a/servers/slapd/attr.c b/servers/slapd/attr.c
index cdfb3a2fe5..63973e03cf 100644
--- a/servers/slapd/attr.c
+++ b/servers/slapd/attr.c
@@ -46,6 +46,10 @@ attr_free( Attribute *a )
 	if ( a->a_nvals && a->a_nvals != a->a_vals ) {
 		ber_bvarray_free( a->a_nvals );
 	}
+	/* a_vals may be equal to slap_dummy_bv, a static empty berval;
+	 * this is used as a placeholder for attributes that do not carry
+	 * values, e.g. when proxying search entries with the "attrsonly"
+	 * bit set. */
 	if ( a->a_vals != &slap_dummy_bv ) {
 		ber_bvarray_free( a->a_vals );
 	}