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node.c
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node.c
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/*
* 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.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* Copyright (C) 2020 embedd.ch
* Copyright (C) 2020 Felix Fietkau <nbd@nbd.name>
* Copyright (C) 2020 John Crispin <john@phrozen.org>
*/
#include "usteer.h"
void usteer_node_set_blob(struct blob_attr **dest, struct blob_attr *val)
{
int new_len;
int len;
if (!val) {
free(*dest);
*dest = NULL;
return;
}
len = *dest ? blob_pad_len(*dest) : 0;
new_len = blob_pad_len(val);
if (new_len != len)
*dest = realloc(*dest, new_len);
memcpy(*dest, val, new_len);
}