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main.cpp
67 lines (57 loc) · 1.65 KB
/
main.cpp
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#include <iostream>
#include <unistd.h>
#include <cstdlib>
#include <cstdio>
#include <sys/select.h>
#include <libudev.h>
struct udev_device *dev = NULL;
struct udev_monitor *mon = NULL;
struct udev *udev = NULL;
fd_set readfds;
char* device;
const char *action = NULL;
dev_t devnum = 0;
unsigned int major = 0, minor = 0;
const char *value = NULL;
int main ()
{
udev = udev_new();
if(!udev) {
fprintf(stderr, "Can't create udev.\n");
exit(EXIT_FAILURE);
}
mon = udev_monitor_new_from_netlink(udev, "udev");
udev_monitor_filter_add_match_subsystem_devtype(mon, "block", NULL);
udev_monitor_enable_receiving(mon);
while(1)
{
if (mon != NULL)
FD_SET(udev_monitor_get_fd(mon), &readfds);
select(udev_monitor_get_fd(mon) + 1, &readfds, NULL, NULL, NULL);
if ((mon != NULL) && FD_ISSET(udev_monitor_get_fd(mon), &readfds))
{
dev = udev_monitor_receive_device(mon);
if(dev) {
device = (char *) udev_device_get_sysname(dev);
}
}
devnum = udev_device_get_devnum(dev);
major = major(devnum);
minor = minor(devnum);
action = udev_device_get_action(dev);
printf("Processing device %s %d:%d\n", action, major, minor);
struct udev_list_entry * props = udev_device_get_properties_list_entry(dev);
while(props != NULL)
{
printf("%s = %s\n", udev_list_entry_get_name(props), udev_list_entry_get_value(props));
props = udev_list_entry_get_next (props);
}
props = udev_device_get_sysattr_list_entry(dev);
while(props != NULL)
{
printf("%s = %s\n", udev_list_entry_get_name(props), udev_device_get_sysattr_value(dev, udev_list_entry_get_name(props)));
props = udev_list_entry_get_next (props);
}
}
return 0;
}