2 * Check decoding and dumping of sendto and recvfrom syscalls.
4 * Copyright (c) 2015-2016 Dmitry V. Levin <ldv@altlinux.org>
5 * Copyright (c) 2016-2017 The strace developers.
8 * SPDX-License-Identifier: GPL-2.0-or-later
15 #include <sys/socket.h>
19 transpose(char *str, int len)
23 for (i = 0; i < len / 2; ++i) {
25 str[i] = str[len - 1 - i];
31 main(int ac, char **av)
34 const int len = strlen(av[1]);
41 if (socketpair(AF_UNIX, SOCK_STREAM, 0, sv))
42 perror_msg_and_skip("socketpair");
46 perror_msg_and_fail("fork");
49 assert(close(1) == 0);
50 transpose(av[1], len);
51 assert(sendto(0, av[1], len, MSG_DONTROUTE, NULL, 0) == len);
52 assert(recvfrom(0, av[1], len, MSG_WAITALL, NULL, NULL) == len);
53 assert(close(0) == 0);
56 assert(waitpid(pid, &status, 0) == pid);
59 assert(close(0) == 0);
60 assert(recvfrom(1, av[1], len, MSG_WAITALL, NULL, NULL) == len);
61 transpose(av[1], len);
62 assert(sendto(1, av[1], len, MSG_DONTROUTE, NULL, 0) == len);
63 assert(recvfrom(1, av[1], len, MSG_WAITALL, NULL, NULL) == 0);
64 assert(close(1) == 0);