138a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin/* 238a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org> 338a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * All rights reserved. 438a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * 538a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * Redistribution and use in source and binary forms, with or without 638a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * modification, are permitted provided that the following conditions 738a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * are met: 838a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * 1. Redistributions of source code must retain the above copyright 938a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * notice, this list of conditions and the following disclaimer. 1038a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * 2. Redistributions in binary form must reproduce the above copyright 1138a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * notice, this list of conditions and the following disclaimer in the 1238a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * documentation and/or other materials provided with the distribution. 1338a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * 3. The name of the author may not be used to endorse or promote products 1438a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * derived from this software without specific prior written permission. 1538a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * 1638a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 1738a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1838a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1938a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 2038a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2138a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2238a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2338a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2438a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2538a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2638a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin */ 2738a34c9349267c99ce1ddbd0b6e985147415d355Dmitry V. Levin 2808a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#include <errno.h> 2908a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#include <stdio.h> 3008a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#include <unistd.h> 3108a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#include <sys/stat.h> 3208a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#include <sys/mount.h> 3308a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#include <sys/syscall.h> 3408a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin 3508a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#ifdef __NR_oldumount 3608a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin# define TEST_SYSCALL_STR "oldumount" 3708a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#else 3808a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin# if defined __NR_umount && defined __NR_umount2 3908a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin# define __NR_oldumount __NR_umount 4008a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin# define TEST_SYSCALL_STR "umount" 4108a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin# endif 4208a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#endif 4308a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin 4408a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levinint 4508a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levinmain(void) 4608a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin{ 4708a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#ifdef __NR_oldumount 4808a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin static const char sample[] = "umount.sample"; 4908a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin if (mkdir(sample, 0700)) { 5008a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin perror(sample); 5108a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin return 77; 5208a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin } 5308a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin (void) syscall(__NR_oldumount, sample); 5408a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin printf("%s(\"%s\") = -1 ", TEST_SYSCALL_STR, sample); 5508a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin switch (errno) { 5608a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin case ENOSYS: 5708a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin printf("ENOSYS (%m)\n"); 5808a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin break; 5908a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin case EPERM: 6008a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin printf("EPERM (%m)\n"); 6108a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin break; 6208a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin default: 6308a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin printf("EINVAL (%m)\n"); 6408a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin } 6508a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin (void) rmdir(sample); 6608a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin puts("+++ exited with 0 +++"); 6708a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin return 0; 6808a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#else 6908a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin return 77; 7008a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin#endif 7108a178366aeb7befba2fcd173aad9e4cc38ab0c5Dmitry V. Levin} 72