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