1 files changed, 150 insertions, 0 deletions
diff --git a/libraries/liblutil/testavl.c b/libraries/liblutil/testavl.c
new file mode 100644
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+++ b/libraries/liblutil/testavl.c
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+/* testavl.c - Test Tim Howes AVL code */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2021 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) 1993 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.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was originally developed by the University of Michigan
+ * (as part of U-MICH LDAP).
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/stdlib.h>
+#include <ac/string.h>
+
+#define AVL_INTERNAL
+#define AVL_NONREENTRANT 
+#include "avl.h"
+
+static void ravl_print LDAP_P(( Avlnode *root, int depth ));
+static void myprint LDAP_P(( Avlnode *root ));
+static int avl_strcmp LDAP_P(( const void *s, const void *t ));
+
+int
+main( int argc, char **argv )
+{
+	Avlnode	*tree = NULL;
+	char	command[ 10 ];
+	char	name[ 80 ];
+	char	*p;
+
+	printf( "> " );
+	while ( fgets( command, sizeof( command ), stdin ) != NULL ) {
+		switch( *command ) {
+		case 'n':	/* new tree */
+			( void ) avl_free( tree, free );
+			tree = NULL;
+			break;
+		case 'p':	/* print */
+			( void ) myprint( tree );
+			break;
+		case 't':	/* traverse with first, next */
+#ifdef AVL_NONREENTRANT
+			printf( "***\n" );
+			for ( p = (char * ) avl_getfirst( tree );
+			    p != NULL;
+				p = (char *) avl_getnext())
+				printf( "%s\n", p );
+			printf( "***\n" );
+#else
+			printf( "*** reentrant interface not implemented ***" );
+#endif
+			break;
+		case 'f':	/* find */
+			printf( "data? " );
+			if ( fgets( name, sizeof( name ), stdin ) == NULL )
+				exit( EXIT_SUCCESS );
+			name[ strlen( name ) - 1 ] = '\0';
+			if ( (p = (char *) avl_find( tree, name, avl_strcmp ))
+			    == NULL )
+				printf( "Not found.\n\n" );
+			else
+				printf( "%s\n\n", p );
+			break;
+		case 'i':	/* insert */
+			printf( "data? " );
+			if ( fgets( name, sizeof( name ), stdin ) == NULL )
+				exit( EXIT_SUCCESS );
+			name[ strlen( name ) - 1 ] = '\0';
+			if ( avl_insert( &tree, strdup( name ), avl_strcmp, 
+			    avl_dup_error ) != 0 )
+				printf( "\nNot inserted!\n" );
+			break;
+		case 'd':	/* delete */
+			printf( "data? " );
+			if ( fgets( name, sizeof( name ), stdin ) == NULL )
+				exit( EXIT_SUCCESS );
+			name[ strlen( name ) - 1 ] = '\0';
+			if ( avl_delete( &tree, name, avl_strcmp ) == NULL )
+				printf( "\nNot found!\n" );
+			break;
+		case 'q':	/* quit */
+			exit( EXIT_SUCCESS );
+			break;
+		case '\n':
+			break;
+		default:
+			printf("Commands: insert, delete, print, new, quit\n");
+		}
+
+		printf( "> " );
+	}
+
+	return( 0 );
+}
+
+static void ravl_print( Avlnode *root, int depth )
+{
+	int	i;
+
+	if ( root == 0 )
+		return;
+
+	ravl_print( root->avl_right, depth+1 );
+
+	for ( i = 0; i < depth; i++ )
+		printf( "   " );
+	printf( "%s %d\n", (char *) root->avl_data, root->avl_bf );
+
+	ravl_print( root->avl_left, depth+1 );
+}
+
+static void myprint( Avlnode *root )
+{
+	printf( "********\n" );
+
+	if ( root == 0 )
+		printf( "\tNULL\n" );
+	else
+		ravl_print( root, 0 );
+
+	printf( "********\n" );
+}
+
+static int avl_strcmp( const void *s, const void *t )
+{
+	return strcmp( s, t );
+}