1/* 2 * Check decoding of pipe2 syscall. 3 * 4 * Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30#include "tests.h" 31#include <asm/unistd.h> 32 33#ifdef __NR_pipe2 34 35# include <fcntl.h> 36# include <stdio.h> 37# include <unistd.h> 38 39int 40main(void) 41{ 42 static const kernel_ulong_t bogus_zero = 43 (kernel_ulong_t) 0xffffffff00000000ULL; 44 int *const fds = tail_alloc(sizeof(*fds) * 2); 45 int *const efault = fds + 1; 46 long rc; 47 48 rc = syscall(__NR_pipe2, fds, bogus_zero | O_NONBLOCK); 49 if (rc) 50 perror_msg_and_skip("pipe2"); 51 printf("pipe2([%d, %d], O_NONBLOCK) = 0\n", fds[0], fds[1]); 52 53 rc = syscall(__NR_pipe2, efault, bogus_zero); 54 printf("pipe2(%p, 0) = %s\n", efault, sprintrc(rc)); 55 56 if (F8ILL_KULONG_SUPPORTED) { 57 const kernel_ulong_t ill = f8ill_ptr_to_kulong(fds); 58 rc = syscall(__NR_pipe2, ill, 0); 59 printf("pipe2(%#llx, 0) = %s\n", 60 (unsigned long long) ill, sprintrc(rc)); 61 } 62 63 puts("+++ exited with 0 +++"); 64 return 0; 65} 66 67#else 68 69SKIP_MAIN_UNDEFINED("__NR_pipe2") 70 71#endif 72