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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2011 matt mooney <mfm@muteddisk.com>
* 2005-2007 Takahiro Hirofuchi
*/
#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;
}
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