projects/smsdaemon/SmsPdu.cpp

/* using http://sourceforge.net/projects/libserial/
 */


#include "SmsPdu.h"

#include <string>
#include <sstream>

#include <time.h>
#include <stdlib.h> 


#include "util.h"


using namespace std;


namespace SmsPdu
{


vector<unsigned char> BcdEncode(string input)
{
        char buf[2] = " ";
        vector<unsigned char> result;

        unsigned char current;
        for (unsigned int i=0; i<input.length(); ++i)
        {
                buf[0] = input.at(i);
                unsigned char tmp = atoi(buf);

                if ( (i%2) == 0)
                {
                        current = tmp;
                }
                else
                {
                        current |= (tmp<<4);
                        result.push_back(current);
                }
        }

        if ((input.length() % 2) == 1)
        {
                current |= 0xF0;
                result.push_back(current);
        }

        return result;
}

string HexformatVector(vector<unsigned char> vec)
{
        ostringstream os;

        for (unsigned int i=0; i<vec.size(); ++i)
        {
                os.width(2);
                os.fill('0');
                os << hex << uppercase << static_cast<unsigned int>(vec.at(i));
        }


        return os.str();
}

std::string Encode8to7bit(vector<unsigned char> vec)
{
        string result;

        return result;
}

vector<unsigned char> Encode7to8bit(std::string str)
{
        vector<unsigned char> buf;

        int shift = 0;
        for (unsigned int i=0; i<str.size(); ++i)
        {
                unsigned char current = str.at(i) & 0x7F;
                unsigned char next = ( (i+1)<str.size()) ? str.at(i+1) : 0;
                next &= 0x7F;

                current >>= shift;
                next <<= (7-shift);

                unsigned char byte = current | next;
                buf.push_back(byte);

                if (shift == 6)
                        i++;

                shift = (shift+1) % 7;

        }

        return buf;
}

vector<PduInfo> CreateSmsPdu(string to, string message, bool allowMultipart)
{
        bool multipart = allowMultipart && message.length() > 160;

        const unsigned char UDHI = multipart ? 0x40 : 0;

        srand(time(0));
        unsigned char csms_ref = rand() % 128;

        int part_count;

        const int PDU_LEN = 153;

        if (multipart)
        {
                part_count = message.length() / PDU_LEN;
                if (message.length() % PDU_LEN)
                        part_count++;
        }
        else
        {
                part_count = 1;
        }

        vector<PduInfo> result;
        for (int partnr = 0; partnr < part_count; ++partnr)
        {
                vector<unsigned char> pdu;

                pdu.push_back(0x00); // use SMSC from phone
                pdu.push_back( 0x01|UDHI ); // first octet -- no timeout
                pdu.push_back(0x00); // TP-MR message reference
                pdu.push_back(to.length() ); //length of phone nr
                pdu.push_back(0x91); // type of address (international nr  + ISDN/telephone range) - else try 0x81

                vector<unsigned char> phone = BcdEncode(to);
                pdu.insert( pdu.end(), phone.begin(), phone.end());

                pdu.push_back(0x00); // Protocol identifier
                pdu.push_back(0x00); // Data coding scheme 

                string message_part;
                if (multipart)
                {
                        message_part = message.substr(0, PDU_LEN);
                        message.erase(0, PDU_LEN);

                        pdu.push_back( message_part.length()+ 7 );  //UserDataLength
                        pdu.push_back( 0x06 ); // UDH Len
                        pdu.push_back( 0x00 ); // UDH Element Identifier
                        pdu.push_back( 0x03 ); // UDH element length
                        pdu.push_back( csms_ref ); // csms_ref reference
                        pdu.push_back( part_count );
                        pdu.push_back( partnr+1 );
                        pdu.push_back( 0x00);

                }
                else
                {
                        message_part = message.substr(0,160); //truncate to 160

                        pdu.push_back( message_part.length() ); //UserDataLength
                }

                vector<unsigned char> userData = Encode7to8bit(message_part);

                pdu.insert( pdu.end(), userData.begin(), userData.end());

                PduInfo info;
                info.len = pdu.size()-1;
                info.pdu = HexformatVector(pdu);
                result.push_back(info);

        }
        return result;
}

}
1	torben	59	/* using http://sourceforge.net/projects/libserial/
2			*/
3
4
5	torben	60	#include "SmsPdu.h"
6
7	torben	59	#include <string>
8			#include <sstream>
9
10	torben	60	#include <time.h>
11			#include <stdlib.h>
12	torben	59
13
14			#include "util.h"
15
16
17			using namespace std;
18
19
20			namespace SmsPdu
21			{
22
23
24			vector<unsigned char> BcdEncode(string input)
25			{
26			char buf[2] = " ";
27			vector<unsigned char> result;
28
29			unsigned char current;
30			for (unsigned int i=0; i<input.length(); ++i)
31			{
32			buf[0] = input.at(i);
33			unsigned char tmp = atoi(buf);
34
35			if ( (i%2) == 0)
36			{
37			current = tmp;
38			}
39			else
40			{
41			current \|= (tmp<<4);
42			result.push_back(current);
43			}
44			}
45
46	torben	61	if ((input.length() % 2) == 1)
47			{
48			current \|= 0xF0;
49			result.push_back(current);
50			}
51
52	torben	59	return result;
53			}
54
55			string HexformatVector(vector<unsigned char> vec)
56			{
57			ostringstream os;
58
59			for (unsigned int i=0; i<vec.size(); ++i)
60			{
61			os.width(2);
62			os.fill('0');
63			os << hex << uppercase << static_cast<unsigned int>(vec.at(i));
64			}
65
66
67			return os.str();
68			}
69
70	torben	61	std::string Encode8to7bit(vector<unsigned char> vec)
71			{
72			string result;
73
74			return result;
75			}
76
77	torben	59	vector<unsigned char> Encode7to8bit(std::string str)
78			{
79			vector<unsigned char> buf;
80
81			int shift = 0;
82			for (unsigned int i=0; i<str.size(); ++i)
83			{
84			unsigned char current = str.at(i) & 0x7F;
85			unsigned char next = ( (i+1)<str.size()) ? str.at(i+1) : 0;
86			next &= 0x7F;
87
88			current >>= shift;
89			next <<= (7-shift);
90
91			unsigned char byte = current \| next;
92			buf.push_back(byte);
93
94			if (shift == 6)
95			i++;
96
97			shift = (shift+1) % 7;
98
99			}
100
101			return buf;
102			}
103
104	torben	60	vector<PduInfo> CreateSmsPdu(string to, string message, bool allowMultipart)
105	torben	59	{
106	torben	60	bool multipart = allowMultipart && message.length() > 160;
107	torben	59
108	torben	61	const unsigned char UDHI = multipart ? 0x40 : 0;
109	torben	59
110	torben	60	srand(time(0));
111	torben	61	unsigned char csms_ref = rand() % 128;
112	torben	59
113	torben	60	int part_count;
114	torben	61
115			const int PDU_LEN = 153;
116
117	torben	60	if (multipart)
118			{
119	torben	61	part_count = message.length() / PDU_LEN;
120			if (message.length() % PDU_LEN)
121	torben	60	part_count++;
122			}
123			else
124			{
125			part_count = 1;
126			}
127	torben	59
128	torben	60	vector<PduInfo> result;
129			for (int partnr = 0; partnr < part_count; ++partnr)
130			{
131			vector<unsigned char> pdu;
132	torben	59
133	torben	60	pdu.push_back(0x00); // use SMSC from phone
134	torben	61	pdu.push_back( 0x01\|UDHI ); // first octet -- no timeout
135	torben	60	pdu.push_back(0x00); // TP-MR message reference
136			pdu.push_back(to.length() ); //length of phone nr
137			pdu.push_back(0x91); // type of address (international nr + ISDN/telephone range) - else try 0x81
138	torben	59
139	torben	60	vector<unsigned char> phone = BcdEncode(to);
140			pdu.insert( pdu.end(), phone.begin(), phone.end());
141
142			pdu.push_back(0x00); // Protocol identifier
143	torben	61	pdu.push_back(0x00); // Data coding scheme
144	torben	60
145			string message_part;
146			if (multipart)
147			{
148	torben	61	message_part = message.substr(0, PDU_LEN);
149			message.erase(0, PDU_LEN);
150	torben	60
151	torben	62	pdu.push_back( message_part.length()+ 7 ); //UserDataLength
152			pdu.push_back( 0x06 ); // UDH Len
153	torben	61	pdu.push_back( 0x00 ); // UDH Element Identifier
154			pdu.push_back( 0x03 ); // UDH element length
155			pdu.push_back( csms_ref ); // csms_ref reference
156	torben	60	pdu.push_back( part_count );
157	torben	61	pdu.push_back( partnr+1 );
158	torben	62	pdu.push_back( 0x00);
159	torben	60
160			}
161			else
162			{
163			message_part = message.substr(0,160); //truncate to 160
164
165			pdu.push_back( message_part.length() ); //UserDataLength
166			}
167
168			vector<unsigned char> userData = Encode7to8bit(message_part);
169
170			pdu.insert( pdu.end(), userData.begin(), userData.end());
171
172			PduInfo info;
173			info.len = pdu.size()-1;
174			info.pdu = HexformatVector(pdu);
175			result.push_back(info);
176
177			}
178			return result;
179	torben	59	}
180
181			}