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https://github.com/systemd/systemd.git
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84 lines
1.5 KiB
C
84 lines
1.5 KiB
C
/*
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* udev.c
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*
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* Userspace devfs
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*
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* Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
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*
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "udev.h"
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#include "udev_version.h"
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static char *get_action(void)
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{
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char *action;
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action = getenv("ACTION");
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return action;
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}
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/* yeah this should be dynamically allocated... */
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static char device[255];
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static char *get_device(void)
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{
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char *temp;
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temp = getenv("DEVPATH");
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if (temp == NULL)
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return NULL;
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strcpy(device, SYSFS_ROOT);
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strcat(device, temp);
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return device;
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}
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int main(int argc, char *argv[])
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{
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char *subsystem;
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char *action;
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char *dev;
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if (argc != 2) {
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dbg ("unknown number of arguments");
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return 1;
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}
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subsystem = argv[1];
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action = get_action();
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if (!action) {
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dbg ("no action?");
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return 1;
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}
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dev = get_device();
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if (!dev) {
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dbg ("no device?");
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return 1;
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}
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return 0;
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}
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