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/*
* (C) 2010 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2010 by On-Waves
* All Rights Reserved
*
* 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, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include <isup_types.h>
#include <cellmgr_debug.h>
/* this message contains the range */
int isup_parse_grs(const uint8_t *data, uint8_t in_length)
{
uint8_t ptr;
uint8_t length;
if (in_length > 3) {
LOGP(DISUP, LOGL_ERROR, "This needs three bytes.\n");
return -1;
}
ptr = data[0];
if (1 + ptr > in_length) {
LOGP(DISUP, LOGL_ERROR, "Pointing outside the packet.\n");
return -1;
}
length = data[0 + ptr];
if (1 + ptr + 1 > in_length) {
LOGP(DISUP, LOGL_ERROR, "No space for the data.\n");
return -1;
}
return data[0 + ptr + 1];
}
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