153 lines
3.8 KiB
C
153 lines
3.8 KiB
C
/*
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* Copyright (C) 2009 Mamadou Diop.
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*
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* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* DOUBANGO is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file tsms_address.c
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* @brief SMS address encoder/decoder.
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*
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* @author Mamadou Diop <diopmamadou(at)doubango.org>
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*
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* @date Created: Sat Nov 8 16:54:58 2009 mdiop
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*/
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#include "tinySMS/tsms_address.h"
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#include "tsk_string.h"
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#include "tsk_memory.h"
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#include <string.h>
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/** swaps the address from 'abcd' to 'badc'
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*/
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char* tsms_address_swap(const char* in)
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{
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size_t i, in_len;
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char* ret = tsk_null;
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if(tsk_strnullORempty(in)){
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goto bail;
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}
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in_len = strlen(in);
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ret = tsk_calloc(in_len + 2/*\0 and trainling F*/, sizeof(uint8_t));
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if(in_len>=2){
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for(i=0; i<in_len; i+=2){
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ret[i] = in[i+1];
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ret[i+1] = in[i];
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}
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}
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if(in_len & 0x01){ /* odd number? */
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ret[i-2] = 'F';
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ret[i-1] = in[i-2];
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}
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bail:
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return ret;
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}
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/** Serialize the address as per 3GPP TS 23.040 v910 section 9.1.2.5. */
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int tsms_address_serialize(const tsms_address_t* address, tsk_buffer_t* output)
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{
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char* number = tsk_null;
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size_t len = 0;
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uint8_t type_of_address;
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if(!address ||!output){
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return -1;
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}
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/* For more information see 3GPP TS 23.040 v910 section 9.1.2.5
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1 - Address-Length
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2 - Type-of-Address
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+----+----+----+----+----+----+----+----+
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| 1 | TON | NPI |
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+----+----+----+----+----+----+----+----+
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3 - Phone number in semi octets
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*/
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number = tsms_address_swap(address->digits);
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if(number){
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len = (address->type == tsms_addr_smsc) ?
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((strlen(number)/2) + 1) /* Number of octets plus 1. */
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: strlen(number); /* Number of BCD digits */
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}
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/* 1 - Address-Length */
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tsk_buffer_append(output, &len, 1);
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/* 2 - Type-of-Address */
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type_of_address = (address->npi | (((address->ton << 4) | 0x80)));
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tsk_buffer_append(output, &type_of_address, 1);
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/* 3 - Phone number in semi octets */
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tsk_buffer_append(output, number, len);
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TSK_FREE(number);
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return 0;
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}
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//=================================================================================================
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// SMS Address object definition
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//
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static tsk_object_t* tsms_address_create(tsk_object_t * self, va_list * app)
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{
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tsms_address_t *address = self;
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if(address){
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const char* digits = va_arg(*app, const char*);
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address->type = va_arg(*app, tsms_address_type_t);
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if(!tsk_strnullORempty(digits)){
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if(*digits == '+'){
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address->npi = tsms_addr_npi_isdn;
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address->ton = tsms_addr_ton_international;
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address->digits = tsk_strdup((digits+1));
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}
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else{
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address->npi = tsms_addr_npi_national;
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address->ton = tsms_addr_ton_national;
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address->digits = tsk_strdup((digits));
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}
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}
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else{
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address->npi = tsms_addr_npi_unknown;
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address->ton = tsms_addr_ton_unknown;
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}
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}
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return self;
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}
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static tsk_object_t* tsms_address_destroy(tsk_object_t * self)
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{
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tsms_address_t *address = self;
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if(address){
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TSK_FREE(address->digits);
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}
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return self;
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}
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static const tsk_object_def_t tsms_address_def_s =
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{
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sizeof(tsms_address_t),
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tsms_address_create,
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tsms_address_destroy,
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tsk_null,
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};
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const tsk_object_def_t *tsms_address_def_t = &tsms_address_def_s;
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