youtubeUnblock/deps/libmnl/examples/kobject/kobject-event.c

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/* This example is placed in the public domain. */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include <libmnl/libmnl.h>
#include <linux/netlink.h>
int main(int argc, char *argv[])
{
struct mnl_socket *nl;
char buf[MNL_SOCKET_BUFFER_SIZE];
int ret;
nl = mnl_socket_open(NETLINK_KOBJECT_UEVENT);
if (nl == NULL) {
perror("mnl_socket_open");
exit(EXIT_FAILURE);
}
/* There is one single group in kobject over netlink */
if (mnl_socket_bind(nl, (1<<0), MNL_SOCKET_AUTOPID) < 0) {
perror("mnl_socket_bind");
exit(EXIT_FAILURE);
}
ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
while (ret > 0) {
int i;
/* kobject uses a string based protocol, with no initial
* netlink header.
*/
for (i=0; i<ret; i++)
printf("%c", buf[i]);
printf("\n");
ret = mnl_socket_recvfrom(nl, buf, sizeof(buf));
}
if (ret == -1) {
perror("error");
exit(EXIT_FAILURE);
}
mnl_socket_close(nl);
return 0;
}