1 /* 2 * Check decoding of fallocate syscall. 3 * 4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr (at) gmail.com> 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 32 #include <asm/unistd.h> 33 34 #if defined(__NR_fallocate) && defined(HAVE_FALLOCATE) && HAVE_FALLOCATE 35 36 # include <errno.h> 37 # include <fcntl.h> 38 # include <stdio.h> 39 40 # include "xlat.h" 41 # include "xlat/falloc_flags.h" 42 43 int 44 main(void) 45 { 46 static const int bogus_fd = 0xbeefface; 47 static const int bogus_mode = 0xdeadca75; 48 static const off_t bogus_offset = (off_t) 0xbadc0dedda7a1057LLU; 49 static const off_t bogus_len = (off_t) 0xbadfaceca7b0d1e5LLU; 50 51 long rc = fallocate(bogus_fd, bogus_mode, bogus_offset, bogus_len); 52 /* 53 * Workaround a bug fixed by commit glibc-2.11-346-gde240a0. 54 */ 55 if (rc > 0) { 56 errno = rc; 57 rc = -1; 58 } 59 const char *errstr = sprintrc(rc); 60 61 printf("fallocate(%d, ", bogus_fd); 62 printflags(falloc_flags, (unsigned) bogus_mode, "FALLOC_FL_???"); 63 printf(", %lld, %lld) = %s\n", 64 (long long) bogus_offset, (long long) bogus_len, errstr); 65 66 puts("+++ exited with 0 +++"); 67 68 return 0; 69 } 70 71 #else 72 73 SKIP_MAIN_UNDEFINED("__NR_fallocate && HAVE_FALLOCATE"); 74 75 #endif 76
