| /* |
| * 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 |
| */ |
| |
| /* |
| * Copyright 2007 Sun Microsystems, Inc. All rights reserved. |
| * Use is subject to license terms. |
| */ |
| |
| /* |
| * Copyright (c) 2013 by Delphix. All rights reserved. |
| */ |
| |
| #include <stdio.h> |
| #include <sys/stat.h> |
| #include <fcntl.h> |
| #include <sys/types.h> |
| #include <sys/mman.h> |
| #include <errno.h> |
| |
| int |
| main(int argc, char *argv[]) |
| { |
| int error, fd; |
| struct stat statbuf; |
| |
| if (argc != 2) { |
| (void) printf("Error: missing binary name.\n"); |
| (void) printf("Usage:\n\t%s <binary name>\n", |
| argv[0]); |
| return (1); |
| } |
| |
| errno = 0; |
| |
| if ((fd = open(argv[1], O_RDONLY)) < 0) { |
| error = errno; |
| perror("open"); |
| return (error); |
| } |
| if (fstat(fd, &statbuf) < 0) { |
| error = errno; |
| perror("fstat"); |
| return (error); |
| } |
| |
| if (mmap(0, statbuf.st_size, |
| PROT_EXEC, MAP_SHARED, fd, 0) == MAP_FAILED) { |
| error = errno; |
| perror("mmap"); |
| return (error); |
| } |
| |
| return (0); |
| } |