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/*
* Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
* Copyright (C) 2004-2006 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 version 2 of the License.
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <stddef.h>
#include <unistd.h>
#include <errno.h>
#include <ctype.h>
#include <signal.h>
#include <syslog.h>
#include "udev.h"
#include "udev_rules.h"
#ifdef USE_LOG
void log_message (int priority, const char *format, ...)
{
va_list args;
if (priority > udev_log_priority)
return;
va_start(args, format);
vprintf(format, args);
va_end(args);
if (format[strlen(format)-1] != '\n')
printf("\n");
}
#endif
int main(int argc, char *argv[], char *envp[])
{
struct udev_rules rules = {};
char *devpath = NULL;
struct udevice *udev;
struct sysfs_device *dev;
int i;
int retval;
int rc = 0;
info("version %s", UDEV_VERSION);
udev_config_init();
if (udev_log_priority < LOG_INFO)
udev_log_priority = LOG_INFO;
for (i = 1 ; i < argc; i++) {
char *arg = argv[i];
if (strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
printf("Usage: udevtest [--help] <devpath>\n");
goto exit;
} else
devpath = arg;
}
if (devpath == NULL) {
fprintf(stderr, "devpath parameter missing\n");
rc = 1;
goto exit;
}
sysfs_init();
udev_rules_init(&rules, 0);
/* remove /sys if given */
if (strncmp(devpath, sysfs_path, strlen(sysfs_path)) == 0)
devpath = &devpath[strlen(sysfs_path)];
dev = sysfs_device_get(devpath);
if (dev == NULL) {
fprintf(stderr, "unable to open device '%s'\n", devpath);
rc = 2;
goto exit;
}
udev = udev_device_init();
if (udev == NULL) {
fprintf(stderr, "error initializing device\n");
rc = 3;
goto exit;
}
/* override built-in sysfs device */
udev->dev = dev;
strcpy(udev->action, "add");
udev->devt = udev_device_get_devt(udev);
/* simulate node creation with test flag */
udev->test_run = 1;
setenv("DEVPATH", udev->dev->devpath, 1);
setenv("SUBSYSTEM", udev->dev->subsystem, 1);
setenv("ACTION", "add", 1);
printf("This program is for debugging only, it does not create any node,\n"
"or run any program specified by a RUN key. It may show incorrect results,\n"
"if rules match against subsystem specfic kernel event variables.\n"
"\n");
info("looking at device '%s' from subsystem '%s'", udev->dev->devpath, udev->dev->subsystem);
retval = udev_device_event(&rules, udev);
if (retval == 0 && !udev->ignore_device && udev_run) {
struct name_entry *name_loop;
list_for_each_entry(name_loop, &udev->run_list, node) {
char program[PATH_SIZE];
strlcpy(program, name_loop->name, sizeof(program));
udev_rules_apply_format(udev, program, sizeof(program));
info("run: '%s'", program);
}
}
exit:
udev_rules_cleanup(&rules);
sysfs_cleanup();
return rc;
}
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