X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=libraries%2Flibldap%2Fsort.c;h=c62961b7731f6cc9367d45d88f949a6d33f4e273;hb=91e24173d0fa168bdd3e585af2d56f3299a20c00;hp=6738fba022c48b576fccddff005b9e2f0c544fdb;hpb=0024cf2f4b10b0b61c57450aeb27adaea376d259;p=openldap

diff --git a/libraries/libldap/sort.c b/libraries/libldap/sort.c
index 6738fba022..c62961b773 100644
--- a/libraries/libldap/sort.c
+++ b/libraries/libldap/sort.c
@@ -1,4 +1,9 @@
+/* $OpenLDAP$ */
 /*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
+/* Portions
  * Copyright (c) 1994 Regents of the University of Michigan.
  * All rights reserved.
  *
@@ -15,7 +20,7 @@
 #include "portable.h"
 
 #include <stdio.h>
-#include <stdlib.h>
+#include <ac/stdlib.h>
 
 #include <ac/ctype.h>
 #include <ac/string.h>
@@ -76,8 +81,8 @@ int
 ldap_sort_entries(
     LDAP	*ld,
     LDAPMessage	**chain,
-    char	*attr,		/* NULL => sort by DN */
-    int		(*cmp) (const char *, const char *)
+    LDAP_CONST char	*attr,		/* NULL => sort by DN */
+    int		(*cmp) (LDAP_CONST  char *, LDAP_CONST char *)
 )
 {
 	int			i, count;
@@ -87,7 +92,19 @@ ldap_sort_entries(
 
 	count = ldap_count_entries( ld, *chain );
 
-	if ( (et = (struct entrything *) malloc( count *
+
+	if ( count < 0 ) {
+		if( ld != NULL ) {
+			ld->ld_errno = LDAP_PARAM_ERROR;
+		}
+		return -1;
+
+	} else if ( count < 2 ) {
+		/* zero or one entries -- already sorted! */
+		return 0;
+	}
+
+	if ( (et = (struct entrything *) LDAP_MALLOC( count *
 	    sizeof(struct entrything) )) == NULL ) {
 		ld->ld_errno = LDAP_NO_MEMORY;
 		return( -1 );
@@ -102,7 +119,7 @@ ldap_sort_entries(
 
 			dn = ldap_get_dn( ld, e );
 			et[i].et_vals = ldap_explode_dn( dn, 1 );
-			free( dn );
+			LDAP_FREE( dn );
 		} else {
 			et[i].et_vals = ldap_get_values( ld, e, attr );
 		}
@@ -121,7 +138,7 @@ ldap_sort_entries(
 		ldap_value_free( et[i].et_vals );
 	}
 	*ep = last;
-	free( (char *) et );
+	LDAP_FREE( (char *) et );
 
 	return( 0 );
 }