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tests/mmsg-silent.c
44 строки
1014 B
Dmitry V. Levin
Update copyright headers
01 сен 2023, 11:00
01 сен 2023, 11:00
1441768
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/* * Check silent decoding of sendmmsg and recvmmsg syscalls. * * Copyright (c) 2016-2021 Dmitry V. Levin <ldv@strace.io> * Copyright (c) 2016-2023 The strace developers. * All rights reserved. * * SPDX-License-Identifier: GPL-2.0-or-later */ #include "tests.h" #include <stdio.h> #include "msghdr.h" int main(void) { int fds[2]; if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds)) perror_msg_and_skip("socketpair"); char buf = 'A'; struct iovec iov = { .iov_base = &buf, .iov_len = sizeof(buf) }; struct mmsghdr mh = { .msg_hdr = { .msg_iov = &iov, .msg_iovlen = 1 } }; int rc = send_mmsg(fds[1], &mh, 1, MSG_DONTWAIT); if (rc < 0) perror_msg_and_skip("sendmmsg"); printf("sendmmsg(%d, %p, 1, MSG_DONTWAIT) = %d\n", fds[1], &mh, rc); kernel_old_timespec_t t = { .tv_sec = 0, .tv_nsec = 12345678 }; rc = recv_mmsg(fds[0], &mh, 1, MSG_DONTWAIT, &t); printf("recvmmsg(%d, %p, 1, MSG_DONTWAIT, %p) = %d\n", fds[0], &mh, &t, rc); puts("+++ exited with 0 +++"); return 0; }