mirror of https://gerrit.osmocom.org/libosmocore
92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/*
|
|
* (C) 2010 by Holger Hans Peter Freyther
|
|
* (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 <osmocore/gsm0480.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
static const uint8_t ussd_request[] = {
|
|
0x0b, 0x7b, 0x1c, 0x15, 0xa1, 0x13, 0x02, 0x01,
|
|
0x03, 0x02, 0x01, 0x3b, 0x30, 0x0b, 0x04, 0x01,
|
|
0x0f, 0x04, 0x06, 0x2a, 0xd5, 0x4c, 0x16, 0x1b,
|
|
0x01, 0x7f, 0x01, 0x00
|
|
};
|
|
|
|
static int parse_ussd(const uint8_t *_data, int len)
|
|
{
|
|
uint8_t *data;
|
|
int rc;
|
|
struct ussd_request req;
|
|
struct gsm48_hdr *hdr;
|
|
|
|
data = malloc(len);
|
|
memcpy(data, _data, len);
|
|
hdr = (struct gsm48_hdr *) &data[0];
|
|
rc = gsm0480_decode_ussd_request(hdr, len, &req);
|
|
free(data);
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int parse_mangle_ussd(const uint8_t *_data, int len)
|
|
{
|
|
uint8_t *data;
|
|
int rc;
|
|
struct ussd_request req;
|
|
struct gsm48_hdr *hdr;
|
|
|
|
data = malloc(len);
|
|
memcpy(data, _data, len);
|
|
hdr = (struct gsm48_hdr *) &data[0];
|
|
hdr->data[1] = len - sizeof(*hdr) - 2;
|
|
rc = gsm0480_decode_ussd_request(hdr, len, &req);
|
|
free(data);
|
|
|
|
return rc;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
struct ussd_request req;
|
|
const int size = sizeof(ussd_request);
|
|
int i;
|
|
|
|
gsm0480_decode_ussd_request((struct gsm48_hdr *) ussd_request, size, &req);
|
|
printf("Tested if it still works. Text was: %s\n", req.text);
|
|
|
|
|
|
printf("Testing parsing a USSD request and truncated versions\n");
|
|
|
|
for (i = size; i > sizeof(struct gsm48_hdr); --i) {
|
|
int rc = parse_ussd(&ussd_request[0], i);
|
|
printf("Result for %d is %d\n", rc, i);
|
|
}
|
|
|
|
printf("Mangling the container now\n");
|
|
for (i = size; i > sizeof(struct gsm48_hdr) + 2; --i) {
|
|
int rc = parse_mangle_ussd(&ussd_request[0], i);
|
|
printf("Result for %d is %d\n", rc, i);
|
|
}
|
|
|
|
return 0;
|
|
}
|