+++ /dev/null
-/*
- * Copyright (C) 2004-2008 Kay Sievers <kay.sievers@vrfy.org>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-#include <signal.h>
-#include <getopt.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <sys/select.h>
-#include <linux/types.h>
-#include <linux/netlink.h>
-
-#include "udev.h"
-
-static int udev_exit;
-
-static void asmlinkage sig_handler(int signum)
-{
- if (signum == SIGINT || signum == SIGTERM)
- udev_exit = 1;
-}
-
-static void print_device(struct udev_device *device, const char *source, int env)
-{
- struct timeval tv;
- struct timezone tz;
-
- gettimeofday(&tv, &tz);
- printf("%-6s[%llu.%06u] %-8s %s (%s)\n",
- source,
- (unsigned long long) tv.tv_sec, (unsigned int) tv.tv_usec,
- udev_device_get_action(device),
- udev_device_get_devpath(device),
- udev_device_get_subsystem(device));
- if (env) {
- struct udev_list_entry *list_entry;
-
- udev_list_entry_foreach(list_entry, udev_device_get_properties_list_entry(device))
- printf("%s=%s\n",
- udev_list_entry_get_name(list_entry),
- udev_list_entry_get_value(list_entry));
- printf("\n");
- }
-}
-
-int udevadm_monitor(struct udev *udev, int argc, char *argv[])
-{
- struct sigaction act;
- int option;
- int env = 0;
- int print_kernel = 0;
- int print_udev = 0;
- struct udev_monitor *udev_monitor = NULL;
- struct udev_monitor *kernel_monitor = NULL;
- fd_set readfds;
- int rc = 0;
-
- static const struct option options[] = {
- { "environment", no_argument, NULL, 'e' },
- { "kernel", no_argument, NULL, 'k' },
- { "udev", no_argument, NULL, 'u' },
- { "help", no_argument, NULL, 'h' },
- {}
- };
-
- while (1) {
- option = getopt_long(argc, argv, "ekuh", options, NULL);
- if (option == -1)
- break;
-
- switch (option) {
- case 'e':
- env = 1;
- break;
- case 'k':
- print_kernel = 1;
- break;
- case 'u':
- print_udev = 1;
- break;
- case 'h':
- printf("Usage: udevadm monitor [--environment] [--kernel] [--udev] [--help]\n"
- " --env print the whole event environment\n"
- " --kernel print kernel uevents\n"
- " --udev print udev events\n"
- " --help\n\n");
- default:
- goto out;
- }
- }
-
- if (!print_kernel && !print_udev) {
- print_kernel = 1;
- print_udev =1;
- }
-
- /* set signal handlers */
- memset(&act, 0x00, sizeof(struct sigaction));
- act.sa_handler = (void (*)(int)) sig_handler;
- sigemptyset(&act.sa_mask);
- act.sa_flags = SA_RESTART;
- sigaction(SIGINT, &act, NULL);
- sigaction(SIGTERM, &act, NULL);
-
- printf("monitor will print the received events for:\n");
- if (print_udev) {
- udev_monitor = udev_monitor_new_from_netlink(udev, "udev");
- if (udev_monitor == NULL) {
- rc = 1;
- goto out;
- }
- if (udev_monitor_enable_receiving(udev_monitor) < 0) {
- rc = 2;
- goto out;
- }
- printf("UDEV - the event which udev sends out after rule processing\n");
- }
- if (print_kernel) {
- kernel_monitor = udev_monitor_new_from_netlink(udev, "kernel");
- if (kernel_monitor == NULL) {
- fprintf(stderr, "unable to subscribe to kernel events\n");
- rc = 3;
- goto out;
- }
- if (udev_monitor_enable_receiving(kernel_monitor) < 0) {
- rc = 4;
- goto out;
- }
- printf("KERNEL - the kernel uevent\n");
- }
- printf("\n");
-
- while (!udev_exit) {
- int fdcount;
-
- FD_ZERO(&readfds);
- if (kernel_monitor != NULL)
- FD_SET(udev_monitor_get_fd(kernel_monitor), &readfds);
- if (udev_monitor != NULL)
- FD_SET(udev_monitor_get_fd(udev_monitor), &readfds);
-
- fdcount = select(UDEV_MAX(udev_monitor_get_fd(kernel_monitor), udev_monitor_get_fd(udev_monitor))+1,
- &readfds, NULL, NULL, NULL);
- if (fdcount < 0) {
- if (errno != EINTR)
- fprintf(stderr, "error receiving uevent message: %m\n");
- continue;
- }
-
- if ((kernel_monitor != NULL) && FD_ISSET(udev_monitor_get_fd(kernel_monitor), &readfds)) {
- struct udev_device *device;
-
- device = udev_monitor_receive_device(kernel_monitor);
- if (device == NULL)
- continue;
- print_device(device, "KERNEL", env);
- udev_device_unref(device);
- }
-
- if ((udev_monitor != NULL) && FD_ISSET(udev_monitor_get_fd(udev_monitor), &readfds)) {
- struct udev_device *device;
-
- device = udev_monitor_receive_device(udev_monitor);
- if (device == NULL)
- continue;
- print_device(device, "UDEV", env);
- udev_device_unref(device);
- }
- }
-
-out:
- udev_monitor_unref(udev_monitor);
- udev_monitor_unref(kernel_monitor);
- return rc;
-}