linux自启动后，有一个USB进程启来了又被杀掉了是什么原因呢？

[fengmi131]

是一个USB的进程，监听是否插U盘。


监听的代码如下
static int init_hotplug_sock(void)
{
struct sockaddr_nl snl;
const int buffersize = 16 * 1024 * 1024;
int retval;

memset(&snl, 0x00, sizeof(struct sockaddr_nl));
snl.nl_family = AF_NETLINK;
snl.nl_pid = getpid();
snl.nl_groups = 1;

int hotplug_sock = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT);
if (hotplug_sock == -1) {
printf("error getting socket: %s", strerror(errno));
return -1;
}

/* set receive buffersize */
setsockopt(hotplug_sock, SOL_SOCKET, SO_RCVBUFFORCE, &buffersize, sizeof(buffersize));

retval = bind(hotplug_sock, (struct sockaddr *) &snl, sizeof(struct sockaddr_nl));
if (retval < 0) {
printf("bind failed: %s", strerror(errno));
// close(hotplug_sock);
hotplug_sock = -1;
return -1;
}

return hotplug_sock;
}

int main(int argc, char* argv[])
{
if ((hotplug_sock = init_hotplug_sock()) < 0)
{
perror("bind");
}
while(1)
{
if (recv(hotplug_sock, &buf, sizeof(buf), 0) < 0)
{
return -1;
}
}
}



是不是自启动的时候会杀掉socket的进程呢？