2 * Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
3 * Copyright (C) 2004-2006 Kay Sievers <kay.sievers@vrfy.org>
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation version 2 of the License.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
33 #include "udev_rules.h"
37 void log_message (int priority, const char *format, ...)
41 if (priority > udev_log_priority)
44 va_start(args, format);
45 vprintf(format, args);
51 static int import_uevent_var(const char *devpath)
54 static char value[4096]; /* must stay, used with putenv */
61 /* read uevent file */
62 strlcpy(path, sysfs_path, sizeof(path));
63 strlcat(path, devpath, sizeof(path));
64 strlcat(path, "/uevent", sizeof(path));
65 fd = open(path, O_RDONLY);
68 size = read(fd, value, sizeof(value));
74 /* import keys into environment */
76 while (key[0] != '\0') {
77 next = strchr(key, '\n');
81 info("import into environment: '%s'", key);
90 int main(int argc, char *argv[], char *envp[])
93 const char *action = "add";
94 const char *subsystem = NULL;
95 const char *devpath = NULL;
97 struct sysfs_device *dev;
98 struct udev_rules rules = {};
102 static const struct option options[] = {
103 { "action", 1, NULL, 'a' },
104 { "subsystem", 1, NULL, 's' },
105 { "force", 0, NULL, 'f' },
106 { "help", 0, NULL, 'h' },
110 info("version %s", UDEV_VERSION);
112 if (udev_log_priority < LOG_INFO) {
115 udev_log_priority = LOG_INFO;
116 sprintf(priority, "%i", udev_log_priority);
117 setenv("UDEV_LOG", priority, 1);
123 option = getopt_long(argc, argv, "a:s:fh", options, NULL);
127 dbg("option '%c'", option);
139 printf("Usage: udevtest OPTIONS <devpath>\n"
140 " --action=<string> set action string\n"
141 " --subsystem=<string> set subsystem string\n"
142 " --force don't skip node/link creation\n"
143 " --help print this help text\n\n");
149 devpath = argv[optind];
151 if (devpath == NULL) {
152 fprintf(stderr, "devpath parameter missing\n");
157 printf("This program is for debugging only, it does not run any program,\n"
158 "specified by a RUN key. It may show incorrect results, because\n"
159 "some values may be different, or not available at a simulation run.\n"
163 udev_rules_init(&rules, 0);
165 /* remove /sys if given */
166 if (strncmp(devpath, sysfs_path, strlen(sysfs_path)) == 0)
167 devpath = &devpath[strlen(sysfs_path)];
169 dev = sysfs_device_get(devpath);
171 fprintf(stderr, "unable to open device '%s'\n", devpath);
176 udev = udev_device_init(NULL);
178 fprintf(stderr, "error initializing device\n");
183 if (subsystem != NULL)
184 strlcpy(dev->subsystem, subsystem, sizeof(dev->subsystem));
186 /* override built-in sysfs device */
188 strlcpy(udev->action, action, sizeof(udev->action));
189 udev->devt = udev_device_get_devt(udev);
191 /* simulate node creation with test flag */
195 setenv("DEVPATH", udev->dev->devpath, 1);
196 setenv("SUBSYSTEM", udev->dev->subsystem, 1);
197 setenv("ACTION", udev->action, 1);
198 import_uevent_var(udev->dev->devpath);
200 info("looking at device '%s' from subsystem '%s'", udev->dev->devpath, udev->dev->subsystem);
201 retval = udev_device_event(&rules, udev);
202 if (retval == 0 && !udev->ignore_device && udev_run) {
203 struct name_entry *name_loop;
205 list_for_each_entry(name_loop, &udev->run_list, node) {
206 char program[PATH_SIZE];
208 strlcpy(program, name_loop->name, sizeof(program));
209 udev_rules_apply_format(udev, program, sizeof(program));
210 info("run: '%s'", program);
213 udev_device_cleanup(udev);
216 udev_rules_cleanup(&rules);