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_ftruncate 35 36 #include <errno.h> 37 #include <stdio.h> 38 #include <unistd.h> 39 40 #include "kernel_types.h" 41 42 int 43 main(void) 44 { 45 const kernel_ulong_t len = (kernel_ulong_t) 0xdefaced0badc0deULL; 46 int rc; 47 48 if (sizeof(len) > sizeof(long)) 49 rc = ftruncate(-1, len); 50 else 51 rc = syscall(__NR_ftruncate, -1L, len); 52 53 if (rc != -1 || EBADF != errno) 54 return 77; 55 56 printf("ftruncate(-1, %llu) = -1 EBADF (Bad file descriptor)\n", 57 (unsigned long long) len); 58 59 puts("+++ exited with 0 +++"); 60 return 0; 61 } 62 63 #else 64 65 int 66 main(void) 67 { 68 return 77; 69 } 70 71 #endif 72
