1 /* 2 * Check decoding of timeout argument of recvmmsg syscall. 3 * 4 * Copyright (c) 2016 Dmitry V. Levin <ldv (at) altlinux.org> 5 * Copyright (c) 2016-2017 The strace developers. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include "tests.h" 32 #include <stdio.h> 33 34 #include "msghdr.h" 35 36 int 37 main(void) 38 { 39 int fds[2]; 40 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds)) 41 perror_msg_and_skip("socketpair"); 42 43 if (send(fds[1], "A", 1, 0) != 1) 44 perror_msg_and_skip("send"); 45 46 char buf; 47 struct iovec iov = { .iov_base = &buf, .iov_len = sizeof(buf) }; 48 struct mmsghdr mh = { 49 .msg_hdr = { 50 .msg_iov = &iov, 51 .msg_iovlen = 1 52 } 53 }; 54 TAIL_ALLOC_OBJECT_CONST_PTR(struct timespec, ts); 55 ts->tv_sec = 0; 56 ts->tv_nsec = 12345678; 57 58 int rc = recv_mmsg(-1, &mh, 1, 0, ts); 59 printf("recvmmsg(-1, %p, 1, 0, {tv_sec=0, tv_nsec=12345678})" 60 " = %s\n", &mh, sprintrc(rc)); 61 62 rc = recv_mmsg(fds[0], &mh, 1, 0, ts); 63 if (rc < 0) 64 perror_msg_and_skip("recvmmsg"); 65 printf("recvmmsg(%d, [{msg_hdr={msg_name=NULL, msg_namelen=0" 66 ", msg_iov=[{iov_base=\"A\", iov_len=1}], msg_iovlen=1" 67 ", msg_controllen=0, msg_flags=0}, msg_len=1}], 1, 0" 68 ", {tv_sec=0, tv_nsec=12345678}) = " 69 "%d (left {tv_sec=0, tv_nsec=%d})\n", 70 fds[0], rc, (int) ts->tv_nsec); 71 72 ts->tv_sec = 0xdeadbeefU; 73 ts->tv_nsec = 0xfacefeedU; 74 75 rc = recv_mmsg(fds[0], &mh, 1, 0, ts); 76 printf("recvmmsg(%d, %p, 1, 0, {tv_sec=%lld, tv_nsec=%llu}) = %s\n", 77 fds[0], &mh, (long long) ts->tv_sec, 78 zero_extend_signed_to_ull(ts->tv_nsec), sprintrc(rc)); 79 80 ts->tv_sec = (time_t) 0xcafef00ddeadbeefLL; 81 ts->tv_nsec = (long) 0xbadc0dedfacefeedLL; 82 83 rc = recv_mmsg(fds[0], &mh, 1, 0, ts); 84 printf("recvmmsg(%d, %p, 1, 0, {tv_sec=%lld, tv_nsec=%llu}) = %s\n", 85 fds[0], &mh, (long long) ts->tv_sec, 86 zero_extend_signed_to_ull(ts->tv_nsec), sprintrc(rc)); 87 88 puts("+++ exited with 0 +++"); 89 return 0; 90 } 91
