1 /* 2 * This file is part of splice strace test. 3 * 4 * Copyright (c) 2016 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 #if defined __NR_splice 34 35 # include <stdio.h> 36 # include <unistd.h> 37 38 int 39 main(void) 40 { 41 const long int fd_in = (long int) 0xdeadbeefffffffffULL; 42 const long int fd_out = (long int) 0xdeadbeeffffffffeULL; 43 long long int *const off_in = tail_alloc(sizeof(*off_in)); 44 long long int *const off_out = tail_alloc(sizeof(*off_out)); 45 *off_in = 0xdeadbef1facefed1ULL; 46 *off_out = 0xdeadbef2facefed2ULL; 47 const size_t len = (size_t) 0xdeadbef3facefed3ULL; 48 const unsigned int flags = 15; 49 50 long rc = syscall(__NR_splice, 51 fd_in, off_in, fd_out, off_out, len, flags); 52 printf("splice(%d, [%lld], %d, [%lld], %zu, %s) = %ld %s (%m)\n", 53 (int) fd_in, *off_in, (int) fd_out, *off_out, len, 54 "SPLICE_F_MOVE|SPLICE_F_NONBLOCK|SPLICE_F_MORE|SPLICE_F_GIFT", 55 rc, errno2name()); 56 57 puts("+++ exited with 0 +++"); 58 return 0; 59 } 60 61 #else 62 63 SKIP_MAIN_UNDEFINED("__NR_splice") 64 65 #endif 66
