Adding upstream version 2.4.47+dfsg.upstream/2.4.47+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 183 insertions, 0 deletions

diff --git a/libraries/libldap/sort.c b/libraries/libldap/sort.c
new file mode 100644
index 0000000..9c4a74e
--- /dev/null
+++ b/libraries/libldap/sort.c
@@ -0,0 +1,183 @@
+/* sort.c -- LDAP library entry and value sort routines */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2018 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Portions Copyright (c) 1994 Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of Michigan at Ann Arbor. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific prior written permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/stdlib.h>
+
+#include <ac/ctype.h>
+#include <ac/string.h>
+#include <ac/time.h>
+
+
+#include "ldap-int.h"
+
+struct entrything {
+	char		**et_vals;
+	LDAPMessage	*et_msg;
+	int 		(*et_cmp_fn) LDAP_P((const char *a, const char *b));
+};
+
+static int	et_cmp LDAP_P(( const void *aa, const void *bb));
+
+
+int
+ldap_sort_strcasecmp(
+	LDAP_CONST void	*a,
+	LDAP_CONST void	*b
+)
+{
+	return( strcasecmp( *(char *const *)a, *(char *const *)b ) );
+}
+
+static int
+et_cmp(
+	const void	*aa,
+	const void	*bb
+)
+{
+	int			i, rc;
+	const struct entrything	*a = (const struct entrything *)aa;
+	const struct entrything	*b = (const struct entrything *)bb;
+
+	if ( a->et_vals == NULL && b->et_vals == NULL )
+		return( 0 );
+	if ( a->et_vals == NULL )
+		return( -1 );
+	if ( b->et_vals == NULL )
+		return( 1 );
+
+	for ( i = 0; a->et_vals[i] && b->et_vals[i]; i++ ) {
+		if ( (rc = a->et_cmp_fn( a->et_vals[i], b->et_vals[i] )) != 0 ) {
+			return( rc );
+		}
+	}
+
+	if ( a->et_vals[i] == NULL && b->et_vals[i] == NULL )
+		return( 0 );
+	if ( a->et_vals[i] == NULL )
+		return( -1 );
+	return( 1 );
+}
+
+int
+ldap_sort_entries(
+    LDAP	*ld,
+    LDAPMessage	**chain,
+    LDAP_CONST char	*attr,		/* NULL => sort by DN */
+    int		(*cmp) (LDAP_CONST  char *, LDAP_CONST char *)
+)
+{
+	int			i, count = 0;
+	struct entrything	*et;
+	LDAPMessage		*e, *ehead = NULL, *etail = NULL;
+	LDAPMessage		*ohead = NULL, *otail = NULL;
+	LDAPMessage		**ep;
+
+	assert( ld != NULL );
+
+	/* Separate entries from non-entries */
+	for ( e = *chain; e; e=e->lm_chain ) {
+		if ( e->lm_msgtype == LDAP_RES_SEARCH_ENTRY ) {
+			count++;
+			if ( !ehead ) ehead = e;
+			if ( etail ) etail->lm_chain = e;
+			etail = e;
+		} else {
+			if ( !ohead ) ohead = e;
+			if ( otail ) otail->lm_chain = e;
+			otail = e;
+		}
+	}
+
+	if ( count < 2 ) {
+		/* zero or one entries -- already sorted! */
+		if ( ehead ) {
+			etail->lm_chain = ohead;
+			*chain = ehead;
+		} else {
+			*chain = ohead;
+		}
+		return 0;
+	}
+
+	if ( (et = (struct entrything *) LDAP_MALLOC( count *
+	    sizeof(struct entrything) )) == NULL ) {
+		ld->ld_errno = LDAP_NO_MEMORY;
+		return( -1 );
+	}
+
+	e = ehead;
+	for ( i = 0; i < count; i++ ) {
+		et[i].et_cmp_fn = cmp;
+		et[i].et_msg = e;
+		if ( attr == NULL ) {
+			char	*dn;
+
+			dn = ldap_get_dn( ld, e );
+			et[i].et_vals = ldap_explode_dn( dn, 1 );
+			LDAP_FREE( dn );
+		} else {
+			et[i].et_vals = ldap_get_values( ld, e, attr );
+		}
+
+		e = e->lm_chain;
+	}
+
+	qsort( et, count, sizeof(struct entrything), et_cmp );
+
+	ep = chain;
+	for ( i = 0; i < count; i++ ) {
+		*ep = et[i].et_msg;
+		ep = &(*ep)->lm_chain;
+
+		LDAP_VFREE( et[i].et_vals );
+	}
+	*ep = ohead;
+	(*chain)->lm_chain_tail = otail ? otail : etail;
+
+	LDAP_FREE( (char *) et );
+
+	return( 0 );
+}
+
+int
+ldap_sort_values(
+    LDAP	*ld,
+    char	**vals,
+    int		(*cmp) (LDAP_CONST void *, LDAP_CONST void *)
+)
+{
+	int	nel;
+
+	for ( nel = 0; vals[nel] != NULL; nel++ )
+		;	/* NULL */
+
+	qsort( vals, nel, sizeof(char *), cmp );
+
+	return( 0 );
+}