62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/*
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* Copyright (c) 2017-2018 The strace developers.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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/* This test case is based on netlink_selinux.c */
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#include "tests.h"
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include "netlink.h"
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#include <linux/genetlink.h>
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static void
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test_nlmsg_type(const int fd)
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{
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/*
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* Though GENL_ID_CTRL number is statically fixed in this test case,
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* strace does not have a builtin knowledge that the corresponding
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* string is "nlctrl".
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*/
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long rc;
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struct {
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const struct nlmsghdr nlh;
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struct genlmsghdr gnlh;
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} req = {
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.nlh = {
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.nlmsg_len = sizeof(req),
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.nlmsg_type = GENL_ID_CTRL,
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.nlmsg_flags = NLM_F_DUMP | NLM_F_REQUEST
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},
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.gnlh = {
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.cmd = CTRL_CMD_GETFAMILY
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}
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};
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rc = sendto(fd, &req, sizeof(req), MSG_DONTWAIT, NULL, 0);
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printf("sendto(%d, {{len=%u, type=nlctrl"
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", flags=NLM_F_REQUEST|0x300, seq=0, pid=0}"
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", \"\\x03\\x00\\x00\\x00\"}, %u"
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", MSG_DONTWAIT, NULL, 0) = %s\n",
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fd, req.nlh.nlmsg_len,
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(unsigned int) sizeof(req), sprintrc(rc));
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}
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int main(void)
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{
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skip_if_unavailable("/proc/self/fd/");
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int fd = create_nl_socket(NETLINK_GENERIC);
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test_nlmsg_type(fd);
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printf("+++ exited with 0 +++\n");
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return 0;
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}
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