mlock2.c revision 38a34c9349267c99ce1ddbd0b6e985147415d355
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 280d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin#ifdef HAVE_CONFIG_H 290d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin# include "config.h" 300d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin#endif 310d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin 320d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin#include <errno.h> 330d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin#include <stdio.h> 340d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin#include <unistd.h> 350d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin#include <sys/syscall.h> 360d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin 370d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levinint 380d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levinmain(void) 390d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin{ 400d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin#ifdef __NR_mlock2 410d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin if (syscall(__NR_mlock2, 0xdeadbeef, 0xdefaced, 0xffff) != -1) 420d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin return 77; 430d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin printf("mlock2(0xdeadbeef, 233811181, MLOCK_ONFAULT|0xfffe) = -1 %s\n", 440d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin errno == ENOSYS ? 450d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin "ENOSYS (Function not implemented)" : 460d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin "EINVAL (Invalid argument)"); 470d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin puts("+++ exited with 0 +++"); 480d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin return 0; 490d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin#else 500d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin return 77; 510d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin#endif 520d0a50aa2511f7fd0b32af41e6b18e34e37e6345Dmitry V. Levin} 53