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make: do not delete autotools generated file with distclean
[elogind.git] / udev / udevadm-test.c
1 /*
2  * Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
3  * Copyright (C) 2004-2008 Kay Sievers <kay.sievers@vrfy.org>
4  *
5  * This program is free software: you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation, either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
17  */
18
19 #include <stdlib.h>
20 #include <string.h>
21 #include <stdio.h>
22 #include <stddef.h>
23 #include <unistd.h>
24 #include <errno.h>
25 #include <ctype.h>
26 #include <fcntl.h>
27 #include <signal.h>
28 #include <syslog.h>
29 #include <getopt.h>
30
31 #include "udev.h"
32
33 int udevadm_test(struct udev *udev, int argc, char *argv[])
34 {
35         char filename[UTIL_PATH_SIZE];
36         int force = 0;
37         const char *action = "add";
38         const char *syspath = NULL;
39         struct udev_event *event;
40         struct udev_device *dev;
41         struct udev_rules *rules = NULL;
42         int err;
43         int rc = 0;
44
45         static const struct option options[] = {
46                 { "action", required_argument, NULL, 'a' },
47                 { "force", no_argument, NULL, 'f' },
48                 { "help", no_argument, NULL, 'h' },
49                 {}
50         };
51
52         info(udev, "version %s\n", VERSION);
53
54         while (1) {
55                 int option;
56
57                 option = getopt_long(argc, argv, "a:s:fh", options, NULL);
58                 if (option == -1)
59                         break;
60
61                 dbg(udev, "option '%c'\n", option);
62                 switch (option) {
63                 case 'a':
64                         action = optarg;
65                         break;
66                 case 'f':
67                         force = 1;
68                         break;
69                 case 'h':
70                         printf("Usage: udevadm test OPTIONS <syspath>\n"
71                                "  --action=<string>     set action string\n"
72                                "  --force               don't skip node/link creation\n"
73                                "  --help                print this help text\n\n");
74                         exit(0);
75                 default:
76                         exit(1);
77                 }
78         }
79         syspath = argv[optind];
80
81         if (syspath == NULL) {
82                 fprintf(stderr, "syspath parameter missing\n");
83                 rc = 1;
84                 goto exit;
85         }
86
87         printf("This program is for debugging only, it does not run any program,\n"
88                "specified by a RUN key. It may show incorrect results, because\n"
89                "some values may be different, or not available at a simulation run.\n"
90                "\n");
91
92         rules = udev_rules_new(udev, 1);
93         if (rules == NULL) {
94                 fprintf(stderr, "error reading rules\n");
95                 rc = 1;
96                 goto exit;
97         }
98
99         /* add /sys if needed */
100         if (strncmp(syspath, udev_get_sys_path(udev), strlen(udev_get_sys_path(udev))) != 0) {
101                 util_strlcpy(filename, udev_get_sys_path(udev), sizeof(filename));
102                 util_strlcat(filename, syspath, sizeof(filename));
103                 syspath = filename;
104         }
105
106         dev = udev_device_new_from_syspath(udev, syspath);
107         if (dev == NULL) {
108                 fprintf(stderr, "unable to open device '%s'\n", syspath);
109                 rc = 2;
110                 goto exit;
111         }
112
113         /* skip reading of db, but read kernel parameters */
114         udev_device_set_info_loaded(dev);
115         udev_device_read_uevent_file(dev);
116
117         udev_device_set_action(dev, action);
118         event = udev_event_new(dev);
119
120         /* simulate node creation with test flag */
121         if (!force)
122                 event->test = 1;
123
124         err = udev_event_execute_rules(event, rules);
125
126         if (udev_device_get_event_timeout(dev) >= 0)
127                 info(udev, "custom event timeout: %i\n", udev_device_get_event_timeout(dev));
128
129         if (err == 0 && !event->ignore_device && udev_get_run(udev)) {
130                 struct udev_list_entry *entry;
131
132                 udev_list_entry_foreach(entry, udev_list_get_entry(&event->run_list)) {
133                         char program[UTIL_PATH_SIZE];
134
135                         util_strlcpy(program, udev_list_entry_get_name(entry), sizeof(program));
136                         udev_event_apply_format(event, program, sizeof(program));
137                         info(udev, "run: '%s'\n", program);
138                 }
139         }
140         udev_event_unref(event);
141         udev_device_unref(dev);
142 exit:
143         udev_rules_unref(rules);
144         return rc;
145 }