AsnLen AsnString::EncodeWithSizeConstraint(AsnBufBits &b)const
{
FUNC("AsnString::EncodeWithSizeConstraint");
AsnLen len = 0;
int B = numBits();
int B2 = findB2(B);
int numSizeConstraints;
const SizeConstraint* sizeConstraints = SizeConstraints(numSizeConstraints);
int iSCLowerBound = sizeConstraints[0].lowerBound;
int iSCUpperBound = iSCLowerBound;
int minBitsNeeded = 0;
int minBytesNeeded = 0;
long Range = FindSizeConstraintBounds(iSCLowerBound, iSCUpperBound);
long tempRange = Range - 1;
long size = length();
long count = 0;
unsigned char* pStr = new unsigned char[1];
while(tempRange > 0)
{
tempRange -= (long)(1 << minBitsNeeded);
minBitsNeeded += 1;
}
if(size < iSCLowerBound || size > iSCUpperBound)
{
delete [] pStr;
throw EXCEPT("String size not withing restricted bounds", RESTRICTED_TYPE_ERROR);
}
if(Range > 1)
{
if( ((iSCUpperBound * B2) > 16) && b.IsAligned())
{
len += b.OctetAlignWrite();
}
minBytesNeeded = minBitsNeeded / 8;
minBitsNeeded = minBitsNeeded % 8;
size -= iSCLowerBound;
if(minBytesNeeded > 0)
{
pStr[0] = (unsigned char)(size >> minBitsNeeded);
len += b.PutBits(pStr, 8);
}
pStr[0] = (unsigned char)size;
pStr[0] <<= 8 - minBitsNeeded;
len += b.PutBits(pStr, minBitsNeeded);
}
AsnLen AsnBits::EncodeWithSizeConstraint (AsnBufBits &b)const
{
AsnLen len = 0;
int numSizeConstraints;
const SizeConstraint* sizeConstraints = SizeConstraints(numSizeConstraints);
int iSCLowerBound = sizeConstraints[0].lowerBound;
int iSCUpperBound = iSCLowerBound;
int minBitsNeeded = 0;
int minBytesNeeded = 0;
long Range = FindSizeConstraintBounds(iSCLowerBound, iSCUpperBound);
long tempRange = Range - 1;
long size = bitLen;
unsigned char* temp = NULL;
long tempLength = 0;
unsigned char* pStr = new unsigned char[1];
while(tempRange > 0)
{
tempRange -= (long)(1 << minBitsNeeded);
minBitsNeeded += 1;
}
if(Range > 1)
{
if( (iSCUpperBound > 16) && b.IsAligned())
{
len += b.OctetAlignWrite();
}
if(size > iSCUpperBound)
{
size = iSCUpperBound;
}
if(size < iSCLowerBound)
{
size = iSCLowerBound;
}
minBytesNeeded = minBitsNeeded / 8;
minBitsNeeded = minBitsNeeded % 8;
size -= iSCLowerBound;
if(minBytesNeeded > 0)
{
pStr[0] = (unsigned char)(size >> minBitsNeeded);
len += b.PutBits(pStr, 8);
}
pStr[0] = (unsigned char)size;
pStr[0] <<= 8 - minBitsNeeded;
len += b.PutBits(pStr, minBitsNeeded);
}
void AsnAny::PDec(AsnBufBits &b, AsnLen &bitsDecoded)
{
AsnBufBits tmpBufBits;
AsnOcts tmpAnyLoadOcts;
AsnLen tmpBitsDecoded=0;
FUNC("AsnAny::PDec");
// ai will be NULL if this is an ANY (not an ANY DEFINED BY)
if (ai != NULL)
{
// the type is already known clone it and use it's BDec to decode the
// ASN.1
//
value = ai->typeToClone->Clone();
if (value == NULL)
{
throw SnaccException(STACK_ENTRY, "typeToClone->Clone() failed", INVALID_ANY);
} // IF value == NULL
else
{
tmpAnyLoadOcts.PDec(b, bitsDecoded); // OUTER OctetString
// OUTER "bitsDecoded" returned to caller.
if (tmpAnyLoadOcts.length())
{
tmpBufBits.PutBits((unsigned char *)tmpAnyLoadOcts.c_ustr(),
tmpAnyLoadOcts.length()*8);
value->PDec(tmpBufBits, tmpBitsDecoded);
// DECODE actual known value.
} // END IF tmpBitsDecoded
} // END IF value == NULL
} // IF ai != NULL
else // JUST load BLOB of data in "anyBuf"
{
tmpAnyLoadOcts.PDec(b, bitsDecoded); // OUTER OctetString
// OUTER "bitsDecoded" returned to caller.
if (tmpAnyLoadOcts.length())
{
if(this->anyBuf)
delete this->anyBuf;
this->anyBuf = new AsnBuf((char *)tmpAnyLoadOcts.c_str(),
tmpAnyLoadOcts.length());
} // END IF any data in ANY.
} // END IF ai != NULL
} // END AsnAny::PDec(...)
void AsnBits::DecodeGeneral(AsnBufBits &b, AsnLen &bitsDecoded)
{
unsigned char* seg;
unsigned long templen = 0;
long offset = 0;
clear();
bitsDecoded += b.OctetAlignRead();
seg = (unsigned char*)b.GetBits(8);
bitsDecoded += 8;
while((seg[0] & 0xC0) == 0xC0)
{
seg[0] &= 0x3F;
templen = (unsigned long)seg[0];
templen *= l_16k;
b.OctetAlignRead();
Allocate(templen);
delete [] seg;
seg = b.GetBits(templen);
memcpy(&bits[offset / 8], seg, ((templen + 7) / 8));
bitsDecoded += templen;
bitsDecoded += b.OctetAlignRead();
offset += templen;
delete [] seg;
seg = (unsigned char*)b.GetBits(8);
bitsDecoded += 8;
}
if((seg[0] & 0xC0) == 0x80)
{
seg[0] &= 0x3F;
templen = (unsigned long)seg[0];
templen <<= 8;
delete [] seg;
seg = (unsigned char*)b.GetBits(8);
bitsDecoded += 8;
templen |= (unsigned long)seg[0];
bitsDecoded += b.OctetAlignRead();
Allocate(templen);
delete [] seg;
seg = b.GetBits(templen);
memcpy(&bits[offset / 8], seg, ((templen + 7) / 8));
bitsDecoded += templen;
offset += templen;
}
else if((seg[0] & 0x80) == 0x00)
{
seg[0] &= 0x7F;
templen = (unsigned long)seg[0];
bitsDecoded += b.OctetAlignRead();
Allocate(templen);
delete [] seg;
seg = b.GetBits(templen);
memcpy(&bits[offset / 8], seg, ((templen + 7) / 8));
bitsDecoded += templen;
offset += templen;
}
delete [] seg;
}
AsnLen AsnBits::EncodeGeneral(AsnBufBits &b)const
{
AsnLen len = 0;
unsigned long l_64kFrag = l_16k * 4;
unsigned long count = 0;
unsigned long x = 0;
unsigned long tempLen = encLen();
unsigned char ch = 0x00;
unsigned char *c = NULL;
long offset = 0;
if(tempLen >= l_16k)
{
/*there is more than 16k bits of data*/
count = (tempLen / l_64kFrag);
for(x=0; x < count; x++)
{
len += b.OctetAlignWrite();
len += PEncLen_16kFragment(b, 4);
len += b.OctetAlignWrite();
len += b.PutBits((unsigned char*)&bits[offset / 8], l_64kFrag);
offset += l_64kFrag;
}
tempLen -= count * l_64kFrag;
count = tempLen / l_16k;
if(count != 0)
{
len += b.OctetAlignWrite();
len += PEncLen_16kFragment(b, count);
len += b.OctetAlignWrite();
len += b.PutBits((unsigned char*)&bits[offset / 8], (count * l_16k) );
offset += (count * l_16k);
}
tempLen -= (l_16k * count);
if(tempLen == 0)
{
ch = 0x00;
c = &ch;
len += b.OctetAlignWrite();
len += b.PutBits(c, 8);
return len;
}
}
/*if there are less than 128 bits of data*/
if(tempLen < 128)
{
len += b.OctetAlignWrite();
len += PEncDefLenTo127(b, tempLen);
len += b.OctetAlignWrite();
len += b.PutBits((unsigned char*)&bits[offset / 8], tempLen);
offset += tempLen;
}
else if(tempLen >= 128 && tempLen < l_16k)
{
len += b.OctetAlignWrite();
/*if there is less than 16k bits of data*/
/*and more than 127 bits of data*/
len += PEncLen_1to16k(b, tempLen);
len += b.OctetAlignWrite();
len += b.PutBits((unsigned char*)&bits[offset / 8], tempLen);
offset += tempLen;
}
return len;
}
void PERGeneral::DecodeGeneral(AsnBufBits &b, AsnLen &bitsDecoded)
{
unsigned char* seg;
unsigned long templen = 0;
long offset = 0;
Clear();
bitsDecoded += b.OctetAlignRead();
seg = (unsigned char*)b.GetBits(8);
bitsDecoded += 8;
while((seg[0] & 0xC0) == 0xC0)
{
seg[0] &= 0x3F;
templen = (unsigned long)seg[0];
templen *= l_16k;
Allocate(templen);
bitsDecoded += b.OctetAlignRead();
while(templen)
{
Deterpret(b, bitsDecoded, offset);
offset++;
templen--;
}
bitsDecoded += b.OctetAlignRead();
free(seg);
seg = (unsigned char*)b.GetBits(8);
bitsDecoded += 8;
}
if((seg[0] & 0xC0) == 0x80)
{
seg[0] &= 0x3F;
templen = (unsigned long)seg[0];
templen <<= 8;
free(seg);
seg = (unsigned char*)b.GetBits(8);
bitsDecoded += 8;
templen |= (unsigned long)seg[0];
Allocate(templen);
bitsDecoded += b.OctetAlignRead();
while(templen)
{
Deterpret(b, bitsDecoded, offset);
offset++;
templen--;
}
}
else if((seg[0] & 0x80) == 0x00)
{
seg[0] &= 0x7F;
templen = (unsigned long)seg[0];
Allocate(templen);
bitsDecoded += b.OctetAlignRead();
while(templen)
{
Deterpret(b, bitsDecoded, offset);
offset++;
templen--;
}
}
free(seg);
}
_BEGIN_SNACC_NAMESPACE
AsnLen PERGeneral::EncodeGeneral(AsnBufBits &b)const
{
AsnLen len = 0;
unsigned long l_64kFrag = l_16k * 4;
unsigned long count = 0;
unsigned long x = 0;
unsigned long y = 0;
unsigned long tempLen = lEncLen();
unsigned char ch = 0x00;
unsigned char *c = NULL;
long offset = 0;
if(tempLen >= l_16k)
{
/*there is more than 16k bytes of data*/
count = (tempLen / l_64kFrag);
for(x=0; x < count; x++)
{
len += b.OctetAlignWrite();
len += PEncLen_16kFragment(b, 4);
len += b.OctetAlignWrite();
for(y = 0; y < l_64kFrag; y++)
{
len += Interpret(b, offset);
offset++;
}
}
tempLen -= count * l_64kFrag;
count = tempLen / l_16k;
if(count != 0)
{
len += b.OctetAlignWrite();
len += PEncLen_16kFragment(b, count);
len += b.OctetAlignWrite();
for(y = 0; y < (l_16k * count); y++)
{
len += Interpret(b, offset);
offset++;
}
}
tempLen -= (l_16k * count);
if(tempLen == 0)
{
ch = 0x00;
c = &ch;
len += b.OctetAlignWrite();
len += b.PutBits(c, 8);
return len;
}
}
/*if there are less than 128 bytes of data*/
if(tempLen < 128)
{
len += b.OctetAlignWrite();
len += PEncDefLenTo127(b, tempLen);
len += b.OctetAlignWrite();
for(y = 0; y < tempLen; y++)
{
len += Interpret(b, offset);
offset++;
}
}
else if(tempLen >= 128 && tempLen < l_16k)
{
len += b.OctetAlignWrite();
/*if there is less than 16k bytes of data*/
/*and more than 127 bytes of data*/
len += PEncLen_1to16k(b, tempLen);
len += b.OctetAlignWrite();
for(y = 0; y < tempLen; y++)
{
len += Interpret(b, offset);
offset++;
}
}
return len;
}
