1 /* 2 * Copyright (c) 2015 Dmitry V. Levin <ldv (at) altlinux.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifdef HAVE_CONFIG_H 29 # include "config.h" 30 #endif 31 32 #include <sys/syscall.h> 33 34 #ifdef __NR__llseek 35 36 #include <errno.h> 37 #include <stdio.h> 38 #include <unistd.h> 39 40 int 41 main(void) 42 { 43 const unsigned long high = 0xdefaced; 44 const unsigned long low = 0xdeadbeef; 45 const unsigned long long offset = 0xdefaceddeadbeef; 46 unsigned long long result; 47 int rc = syscall(__NR__llseek, -1, high, low, &result, SEEK_SET); 48 49 if (rc != -1 || EBADF != errno) 50 return 77; 51 52 printf("_llseek(-1, %llu, %p, SEEK_SET) = -1 EBADF (Bad file descriptor)\n", 53 offset, &result); 54 55 puts("+++ exited with 0 +++"); 56 return 0; 57 } 58 59 #else 60 61 int 62 main(void) 63 { 64 return 77; 65 } 66 67 #endif 68
