/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END * $FreeBSD$ */ /* * Copyright 2007 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #pragma ident "@(#)rename_dir.c 1.1 07/05/25 SMI" /* * Assertion: * Create two directory trees in zfs filesystem, and rename * directory across the directory structure. ZFS can handle * the race situation. */ /* * Need to create the following directory structures before * running this program: * * mkdir -p 1/2/3/4/5 a/b/c/d/e */ #include <stdlib.h> #include <unistd.h> #include <stdio.h> #include <string.h> int main() { int i = 1; char buf[256]; char *msg = "rename() fails to handle race situation\n"; switch (fork()) { case -1: perror("fork"); exit(1); break; case 0: while (i > 0) { int c_count = 0; if (rename("a/b/c", "1/2/3/c") == 0) c_count++; if (rename("1/2/3/c", "a/b/c") == 0) c_count++; if (c_count) { (void) strlcat(buf, "c_count: %d,", 256); (void) strlcat(buf, msg, 256); (void) fprintf(stderr, buf, c_count); } } break; default: while (i > 0) { int p_count = 0; if (rename("1", "a/b/c/d/e/1") == 0) p_count++; if (rename("a/b/c/d/e/1", "1") == 0) p_count++; if (p_count) { (void) strlcat(buf, "p_count: %d,", 256); (void) strlcat(buf, msg, 256); (void) fprintf(stderr, buf, p_count); } } break; } return (0); }