blob: 3d7b42e7729941b1ca8f35fb7f6d10d4151a1a2f [file] [log] [blame]
/*
* Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
* 2005-2007 Takahiro Hirofuchi
*
* 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, either version 2 of the License, or
* (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include "usbip_common.h"
#include "utils.h"
#include "sysfs_utils.h"
int modify_match_busid(char *busid, int add)
{
char attr_name[] = "match_busid";
char command[SYSFS_BUS_ID_SIZE + 4];
char match_busid_attr_path[SYSFS_PATH_MAX];
int rc;
int cmd_size;
snprintf(match_busid_attr_path, sizeof(match_busid_attr_path),
"%s/%s/%s/%s/%s/%s", SYSFS_MNT_PATH, SYSFS_BUS_NAME,
SYSFS_BUS_TYPE, SYSFS_DRIVERS_NAME, USBIP_HOST_DRV_NAME,
attr_name);
if (add)
cmd_size = snprintf(command, SYSFS_BUS_ID_SIZE + 4, "add %s",
busid);
else
cmd_size = snprintf(command, SYSFS_BUS_ID_SIZE + 4, "del %s",
busid);
rc = write_sysfs_attribute(match_busid_attr_path, command,
cmd_size);
if (rc < 0) {
dbg("failed to write match_busid: %s", strerror(errno));
return -1;
}
return 0;
}