1 /* 2 * Check decoding of pipe2 syscall. 3 * 4 * Copyright (c) 2015-2017 Dmitry V. Levin <ldv (at) 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 39 int 40 main(void) 41 { 42 int *const fds = tail_alloc(sizeof(*fds) * 2); 43 int *const efault = fds + 1; 44 long rc; 45 46 rc = syscall(__NR_pipe2, fds, F8ILL_KULONG_MASK | O_NONBLOCK); 47 if (rc) 48 perror_msg_and_skip("pipe2"); 49 printf("pipe2([%d, %d], O_NONBLOCK) = 0\n", fds[0], fds[1]); 50 51 rc = syscall(__NR_pipe2, efault, F8ILL_KULONG_MASK); 52 printf("pipe2(%p, 0) = %s\n", efault, sprintrc(rc)); 53 54 if (F8ILL_KULONG_SUPPORTED) { 55 const kernel_ulong_t ill = f8ill_ptr_to_kulong(fds); 56 rc = syscall(__NR_pipe2, ill, 0); 57 printf("pipe2(%#llx, 0) = %s\n", 58 (unsigned long long) ill, sprintrc(rc)); 59 } 60 61 puts("+++ exited with 0 +++"); 62 return 0; 63 } 64 65 #else 66 67 SKIP_MAIN_UNDEFINED("__NR_pipe2") 68 69 #endif 70
