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/*
* (C) 2014 by Harald Welte <laforge@gnumonks.org>
* 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 <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <osmocom/gsm/protocol/gsm_03_41.h>
#include <osmocom/gsm/gsm0341.h>
#include <osmocom/gsm/gsm_utils.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/msgb.h>
struct gsm341_ms_message *gen_msg_from_text(uint16_t msg_id, const char *text)
{
struct gsm341_ms_message *cbmsg;
int text_len = strlen(text);
/* assuming default GSM alphabet, the encoded payload cannot be
* longer than the input text */
uint8_t payload[text_len];
int payload_octets;
srand(time(NULL));
gsm_7bit_encode_n(payload, sizeof(payload), text, &payload_octets);
//cbmsg = gsm0341_build_msg(NULL, 0, rand(), 0, msg_id, 0x0f, 1, 1, payload, payload_octets);
cbmsg = gsm0341_build_msg(NULL, 0, rand(), 0, msg_id, 0x00, 1, 1, payload, payload_octets);
printf("%s\n", osmo_hexdump_nospc((uint8_t *)cbmsg, sizeof(*cbmsg)+payload_octets));
return cbmsg;
}
int main(int argc, char **argv)
{
uint16_t msg_id = GSM341_MSGID_ETWS_CMAS_MONTHLY_TEST;
char *text = "Mahlzeit!";
char tbuf[GSM341_MAX_CHARS+1];
if (argc > 1)
msg_id = atoi(argv[1]);
if (argc > 2)
text = argv[2];
strncpy(tbuf, text, GSM341_MAX_CHARS);
if (strlen(text) < GSM341_MAX_CHARS)
memset(tbuf+strlen(text), GSM341_7BIT_PADDING,
sizeof(tbuf)-strlen(text));
tbuf[GSM341_MAX_CHARS] = 0;
gen_msg_from_text(msg_id, tbuf);
return EXIT_SUCCESS;
}
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