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/*
* udev.c
*
* Userspace devfs
*
* Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include <ctype.h>
#include <signal.h>
#include "libsysfs/sysfs/libsysfs.h"
#include "udev.h"
#include "udev_lib.h"
#include "udev_version.h"
#include "logging.h"
#include "namedev.h"
/* global variables */
char **main_argv;
char **main_envp;
#ifdef LOG
unsigned char logname[LOGNAME_SIZE];
void log_message (int level, const char *format, ...)
{
va_list args;
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 sysfs_class_device *class_dev;
char *devpath;
char path[SYSFS_PATH_MAX];
char temp[NAME_SIZE];
char *subsystem = "";
struct udevice udev;
main_argv = argv;
main_envp = envp;
info("version %s", UDEV_VERSION);
if (argv[1] == NULL) {
info("udevinfo expects the DEVPATH of the sysfs device as a argument");
return 1;
}
/* remove sysfs_path if given */
if (strncmp(argv[1], sysfs_path, strlen(sysfs_path)) == 0)
devpath = argv[1] + strlen(sysfs_path);
else
if (argv[1][0] != '/') {
/* prepend '/' if missing */
strfieldcpy(temp, "/");
strfieldcat(temp, argv[1]);
devpath = temp;
} else {
devpath = argv[1];
}
info("looking at '%s'", devpath);
/* we only care about class devices and block stuff */
if (!strstr(devpath, "class") && !strstr(devpath, "block")) {
dbg("not a block or class device");
return 2;
}
/* initialize our configuration */
udev_init_config();
/* initialize the naming deamon */
namedev_init();
if (argv[2] != NULL)
subsystem = argv[2];
/* fill in values and test_run flag*/
udev_set_values(&udev, devpath, subsystem);
/* open the device */
snprintf(path, SYSFS_PATH_MAX, "%s%s", sysfs_path, udev.devpath);
class_dev = sysfs_open_class_device_path(path);
if (class_dev == NULL)
dbg ("sysfs_open_class_device_path failed");
else
dbg("opened class_dev->name='%s'", class_dev->name);
/* simulate node creation with test flag */
udev.test_run = 1;
udev_add_device(&udev, class_dev);
sysfs_close_class_device(class_dev);
return 0;
}
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