diff options
Diffstat (limited to 'tests/zfs-tests/cmd/mmap_exec/mmap_exec.c')
-rw-r--r-- | tests/zfs-tests/cmd/mmap_exec/mmap_exec.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/tests/zfs-tests/cmd/mmap_exec/mmap_exec.c b/tests/zfs-tests/cmd/mmap_exec/mmap_exec.c new file mode 100644 index 000000000..6a48a9c04 --- /dev/null +++ b/tests/zfs-tests/cmd/mmap_exec/mmap_exec.c @@ -0,0 +1,69 @@ +/* + * 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 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) { + perror("open"); + return (errno); + } + if (fstat(fd, &statbuf) < 0) { + perror("fstat"); + return (errno); + } + + if (mmap(0, statbuf.st_size, + PROT_EXEC, MAP_SHARED, fd, 0) == MAP_FAILED) { + perror("mmap"); + return (errno); + } + + return (0); +} |