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/*
* 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);
}
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