src/udev/udevadm-test-builtin.c

   1 /*
   2  * Copyright (C) 2011 Kay Sievers <kay@vrfy.org>
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <stdlib.h>
  19 #include <stddef.h>
  20 #include <string.h>
  21 #include <stdio.h>
  22 #include <unistd.h>
  23 #include <errno.h>
  24 #include <dirent.h>
  25 #include <fcntl.h>
  26 #include <getopt.h>
  27 #include <signal.h>
  28 #include <time.h>
  29 #include <sys/inotify.h>
  30 #include <poll.h>
  31 #include <sys/stat.h>
  32 #include <sys/types.h>
  33
  34 #include "udev.h"
  35
  36 static void help(struct udev *udev) {
  37         printf("%s builtin [--help] COMMAND SYSPATH\n\n"
  38                "Test a built-in command.\n\n"
  39                "  -h --help     Print this message\n"
  40                "     --version  Print version of the program\n\n"
  41                "Commands:\n"
  42                , program_invocation_short_name);
  43
  44         udev_builtin_list(udev);
  45 }
  46
  47 static int adm_builtin(struct udev *udev, int argc, char *argv[]) {
  48         static const struct option options[] = {
  49                 { "help", no_argument, NULL, 'h' },
  50                 {}
  51         };
  52         char *command = NULL;
  53         char *syspath = NULL;
  54         char filename[UTIL_PATH_SIZE];
  55         struct udev_device *dev = NULL;
  56         enum udev_builtin_cmd cmd;
  57         int rc = EXIT_SUCCESS, c;
  58
  59         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
  60                 switch (c) {
  61                 case 'h':
  62                         help(udev);
  63                         goto out;
  64                 }
  65
  66         command = argv[optind++];
  67         if (command == NULL) {
  68                 fprintf(stderr, "command missing\n");
  69                 help(udev);
  70                 rc = 2;
  71                 goto out;
  72         }
  73
  74         syspath = argv[optind++];
  75         if (syspath == NULL) {
  76                 fprintf(stderr, "syspath missing\n");
  77                 rc = 3;
  78                 goto out;
  79         }
  80
  81         udev_builtin_init(udev);
  82
  83         cmd = udev_builtin_lookup(command);
  84         if (cmd >= UDEV_BUILTIN_MAX) {
  85                 fprintf(stderr, "unknown command '%s'\n", command);
  86                 help(udev);
  87                 rc = 5;
  88                 goto out;
  89         }
  90
  91         /* add /sys if needed */
  92         if (!startswith(syspath, "/sys"))
  93                 strscpyl(filename, sizeof(filename), "/sys", syspath, NULL);
  94         else
  95                 strscpy(filename, sizeof(filename), syspath);
  96         util_remove_trailing_chars(filename, '/');
  97
  98         dev = udev_device_new_from_syspath(udev, filename);
  99         if (dev == NULL) {
 100                 fprintf(stderr, "unable to open device '%s'\n\n", filename);
 101                 rc = 4;
 102                 goto out;
 103         }
 104
 105         rc = udev_builtin_run(dev, cmd, command, true);
 106         if (rc < 0) {
 107                 fprintf(stderr, "error executing '%s', exit code %i\n\n", command, rc);
 108                 rc = 6;
 109         }
 110 out:
 111         udev_device_unref(dev);
 112         udev_builtin_exit(udev);
 113         return rc;
 114 }
 115
 116 const struct udevadm_cmd udevadm_test_builtin = {
 117         .name = "test-builtin",
 118         .cmd = adm_builtin,
 119         .help = "Test a built-in command",
 120         .debug = true,
 121 };