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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 0213 9 , USA .
*
*/
# include <stdlib.h>
# include <string.h>
# include <stdio.h>
# include <errno.h>
# include <ctype.h>
# include <signal.h>
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# include "libsysfs/sysfs/libsysfs.h"
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# include "udev.h"
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# include "udev_lib.h"
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# include "udev_version.h"
# include "logging.h"
# include "namedev.h"
/* global variables */
char * * main_argv ;
char * * main_envp ;
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# ifdef LOG
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unsigned char logname [ LOGNAME_SIZE ] ;
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void log_message ( int level , const char * format , . . . )
{
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va_list args ;
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va_start ( args , format ) ;
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vprintf ( format , args ) ;
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va_end ( args ) ;
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if ( format [ strlen ( format ) - 1 ] ! = ' \n ' )
printf ( " \n " ) ;
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}
# endif
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int main ( int argc , char * argv [ ] , char * envp [ ] )
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{
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struct sysfs_class_device * class_dev ;
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char * devpath ;
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char path [ SYSFS_PATH_MAX ] ;
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char temp [ NAME_SIZE ] ;
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char * subsystem = " " ;
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struct udevice udev ;
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main_argv = argv ;
main_envp = envp ;
info ( " version %s " , UDEV_VERSION ) ;
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if ( argv [ 1 ] = = NULL ) {
info ( " udevinfo expects the DEVPATH of the sysfs device as a argument " ) ;
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goto exit ;
}
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/* initialize our configuration */
udev_init_config ( ) ;
/* 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 ) ;
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/* we only care about class devices and block stuff */
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if ( ! strstr ( devpath , " class " ) & & ! strstr ( devpath , " block " ) ) {
dbg ( " not a block or class device " ) ;
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goto exit ;
}
/* initialize the naming deamon */
namedev_init ( ) ;
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if ( argv [ 2 ] ! = NULL )
subsystem = argv [ 2 ] ;
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/* fill in values and test_run flag*/
udev_set_values ( & udev , devpath , subsystem ) ;
udev . test_run = 1 ;
/* 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 ) ;
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/* simulate node creation with fake flag */
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udev_add_device ( & udev , class_dev ) ;
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exit :
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return 0 ;
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}