udev/udev-builtin-kmod.c

   1 /*
   2  * load kernel modules
   3  *
   4  * Copyright (C) 2011 Kay Sievers <kay.sievers@vrfy.org>
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <stdarg.h>
  23 #include <unistd.h>
  24 #include <string.h>
  25 #include <errno.h>
  26 #include <fcntl.h>
  27 #include <sys/stat.h>
  28
  29 #include "udev.h"
  30
  31 static char *kmod;
  32
  33 static int builtin_kmod(struct udev_device *dev, int argc, char *argv[], bool test)
  34 {
  35         struct udev *udev = udev_device_get_udev(dev);
  36
  37         if (argc < 3) {
  38                 err(udev, "missing command + argument\n");
  39                 return EXIT_FAILURE;
  40         }
  41
  42         printf("soon we '%s' the module '%s' (%i) here\n", argv[1], argv[2], argc);
  43         printf("test: %s\n", kmod);
  44         return EXIT_SUCCESS;
  45 }
  46
  47 static int builtin_kmod_load(struct udev *udev)
  48 {
  49         info(udev, "load module index\n");
  50         asprintf(&kmod, "pid: %u", getpid());
  51         return 0;
  52 }
  53
  54 static int builtin_kmod_unload(struct udev *udev)
  55 {
  56         info(udev, "unload module index\n");
  57         free(kmod);
  58         return 0;
  59 }
  60
  61 const struct udev_builtin udev_builtin_kmod = {
  62         .name = "kmod",
  63         .cmd = builtin_kmod,
  64         .load = builtin_kmod_load,
  65         .unload = builtin_kmod_unload,
  66         .help = "kernel module loader",
  67         .run_once = false,
  68 };