void TLUserData::write(TLFrame& dest, size_t& wp) const
{
#if 1
// First write TP-User-Data-Length
dest.writeField(wp,mLength,8);
// Then write TP-User-Data
// This tail() works because UD is always the last field in the PDU.
BitVector ud_dest = dest.tail(wp);
mRawData.copyTo(ud_dest);
ud_dest.LSB8MSB();
#else
// Stuff we don't support...
assert(!mUDHI);
assert(mDCS==0);
unsigned numChar = strlen(mData);
dest.writeField(wp,numChar,8);
// This tail() works because UD is always the last field in the PDU.
BitVector chars = dest.tail(wp);
chars.zero();
for (unsigned i=0; i<numChar; i++) {
char gsm = encodeGSMChar(mData[i]);
dest.writeFieldReversed(wp,gsm,7);
}
chars.LSB8MSB();
#endif
}
void TLAddress::write(TLFrame& dest, size_t& wp) const
{
dest.writeField(wp,mDigits.size(),8);
dest.writeField(wp, 0x01, 1);
dest.writeField(wp, mType, 3);
dest.writeField(wp, mPlan, 4);
mDigits.write(dest,wp);
}
void TLDeliver::writeBody(TLFrame& dest, size_t& wp) const
{
writeMMS(dest);
writeRP(dest);
writeUDHI(dest, mUD.UDHI());
writeSRI(dest);
mOA.write(dest,wp);
dest.writeField(wp,mPID,8);
dest.writeField(wp,mUD.DCS(),8);
mSCTS.write(dest,wp);
writeUnused(dest);
mUD.write(dest,wp);
}
// (pat) See 3GPP 3.40 9.2.2
void TLDeliver::writeBody(TLFrame& dest, size_t& wp) const
{
writeMMS(dest); // more messages to send bit.
writeRP(dest); // reply path bit.
writeUDHI(dest, mUD.UDHI()); // User-data-header-indicator bit
writeSRI(dest); // status-report-indication bit
mOA.write(dest,wp); // originating address
dest.writeField(wp,mPID,8); // protocol id
dest.writeField(wp,mUD.DCS(),8); // Data-coding-scheme
mSCTS.write(dest,wp); // service-centre-time-stamp
writeUnused(dest); // user-data-length. (pat) Why empty?
mUD.write(dest,wp); // user data.
}
void TLValidityPeriod::write(TLFrame& dest, size_t& wp) const
{
if (mVPF==0) return;
// We only support VPF==1.
assert(mVPF==1);
int seconds = mExpiration.seconds() - time(NULL);
int minutes = seconds/60;
if (minutes<1) minutes=1;
unsigned vp;
if (minutes<=720) vp = (minutes-1)/5;
else if (minutes<1440) vp = 143 + (minutes-720)/30;
else if (minutes<43200) vp = 166 + minutes/(24*60);
else vp = 192 + minutes/(7*24*60);
if (vp>255) vp=255;
dest.writeField(wp,vp,8);
}
void TLUserData::write(TLFrame& dest, size_t& wp) const
{
// Stuff we don't support...
assert(!mUDHI);
assert(mDCS==0);
unsigned numChar = strlen(mData);
dest.writeField(wp,numChar,8);
// This tail() works because UD is always the last field in the PDU.
BitVector chars = dest.tail(wp);
chars.zero();
for (unsigned i=0; i<numChar; i++) {
char gsm = encodeGSMChar(mData[i]);
dest.writeFieldReversed(wp,gsm,7);
}
chars.LSB8MSB();
}
