1 /* 2 * Check decoding of timeout argument of recvmmsg syscall. 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 <stdio.h> 32 33 #include "msghdr.h" 34 35 int 36 main(void) 37 { 38 int fds[2]; 39 if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds)) 40 perror_msg_and_skip("socketpair"); 41 42 if (send(fds[1], "A", 1, 0) != 1) 43 perror_msg_and_skip("send"); 44 45 char buf; 46 struct iovec iov = { .iov_base = &buf, .iov_len = sizeof(buf) }; 47 struct mmsghdr mh = { 48 .msg_hdr = { 49 .msg_iov = &iov, 50 .msg_iovlen = 1 51 } 52 }; 53 struct timespec t = { .tv_sec = 0, .tv_nsec = 12345678 }; 54 55 int rc = recv_mmsg(-1, &mh, 1, 0, &t); 56 printf("recvmmsg(-1, %p, 1, 0, {tv_sec=0, tv_nsec=12345678})" 57 " = %d %s (%m)\n", &mh, rc, errno2name()); 58 59 rc = recv_mmsg(fds[0], &mh, 1, 0, &t); 60 if (rc < 0) 61 perror_msg_and_skip("recvmmsg"); 62 printf("recvmmsg(%d, [{msg_hdr={msg_name=NULL, msg_namelen=0" 63 ", msg_iov=[{iov_base=\"A\", iov_len=1}], msg_iovlen=1" 64 ", msg_controllen=0, msg_flags=0}, msg_len=1}], 1, 0" 65 ", {tv_sec=0, tv_nsec=12345678}) = " 66 "%d (left {tv_sec=0, tv_nsec=%d})\n", 67 fds[0], rc, (int) t.tv_nsec); 68 69 puts("+++ exited with 0 +++"); 70 return 0; 71 } 72
