flag Xer_DecodeBoolean(ByteStream* pByteStrm, const char* elementTag, flag* value, int *pErrCode)
{
char tmp[256];
flag hasExtTag = (elementTag != NULL && (strlen(elementTag)>0));
memset(tmp, 0x0, sizeof(tmp));
if (hasExtTag)
if (!Xer_DecodeComplexElementStart(pByteStrm, elementTag, NULL, pErrCode))
return FALSE;
if (!Xer_LA_NextElementTag(pByteStrm, tmp))
return FALSE;
if (strcmp(tmp,"true")==0) {
*value = TRUE;
if (!Xer_DecodePrimitiveElement(pByteStrm,"true", tmp, pErrCode))
return FALSE;
} else {
*value = FALSE;
if (!Xer_DecodePrimitiveElement(pByteStrm,"false", tmp, pErrCode))
return FALSE;
}
if (hasExtTag)
if (!Xer_DecodeComplexElementEnd(pByteStrm, elementTag, pErrCode))
return FALSE;
return TRUE;
}
flag Xer_DecodeOctetString(ByteStream* pByteStrm, const char* elementTag, byte value[], long* nCount, int *pErrCode)
{
char tmp[1024];
int len=0;
int i;
int j=0;
memset(tmp,0x0, sizeof(tmp));
if (!Xer_DecodePrimitiveElement(pByteStrm, elementTag, tmp, pErrCode))
return FALSE;
len = strlen(tmp);
for(i=0; i<len; i++) {
if (isspace(tmp[i]))
continue;
tmp[j++] = tmp[i];
}
len = j;
for(i=0; i<len; i++) {
byte nibble;
if (!CharToNibble(tmp[i], &nibble))
return FALSE;
if (i%2 ==0) {
value[i/2] = nibble<<4;
} else {
value[i/2] |= nibble;
}
}
if (nCount != NULL)
*nCount = len/2 + len%2;
return TRUE;
}
flag Xer_DecodeReal(ByteStream* pByteStrm, const char* elementTag, double* value, int *pErrCode)
{
char tmp[256];
memset(tmp,0x0, sizeof(tmp));
if (!Xer_DecodePrimitiveElement(pByteStrm, elementTag, tmp, pErrCode))
return FALSE;
*value = atof(tmp);
return TRUE;
}
flag Xer_DecodePosInteger(ByteStream* pByteStrm, const char* elementTag, asn1SccUint* value, int *pErrCode)
{
char tmp[256];
memset(tmp, 0x0, sizeof(tmp));
if (!Xer_DecodePrimitiveElement(pByteStrm, elementTag, tmp, pErrCode))
return FALSE;
*value = strtoull(tmp, NULL, 10);
return TRUE;
}
flag Xer_DecodeEnumerated(ByteStream* pByteStrm, const char* elementTag, char* value, int *pErrCode)
{
char tmp[256];
flag hasExtTag = (elementTag != NULL && (strlen(elementTag)>0));
memset(tmp, 0x0, sizeof(tmp));
if (hasExtTag)
if (!Xer_DecodeComplexElementStart(pByteStrm, elementTag, NULL, pErrCode))
return FALSE;
if (!Xer_LA_NextElementTag(pByteStrm, value))
return FALSE;
if (!Xer_DecodePrimitiveElement(pByteStrm, value, tmp, pErrCode))
return FALSE;
if (hasExtTag)
if (!Xer_DecodeComplexElementEnd(pByteStrm, elementTag, pErrCode))
return FALSE;
return TRUE;
}
flag Xer_DecodeBitString(ByteStream* pByteStrm, const char* elementTag, byte value[], long* nCount, int *pErrCode)
{
char tmp[2048];
int len=0;
int i;
int bytes;
int j=0;
memset(tmp,0x0, sizeof(tmp));
if (!Xer_DecodePrimitiveElement(pByteStrm, elementTag, tmp, pErrCode))
return FALSE;
len = strlen(tmp);
for(i=0; i<len; i++) {
if (isspace(tmp[i]))
continue;
tmp[j++] = tmp[i];
}
len = j;
bytes = len/8;
if (len % 8)
bytes++;
memset(value, 0x0, bytes);
for(i=0; i<len; i++) {
byte curVal = tmp[i] - '0';
int curBit = 7 - i%8;
value[i/8] |= curVal<<curBit;
}
if (nCount != NULL)
*nCount = len;
return TRUE;
}
flag Xer_DecodeString(ByteStream* pByteStrm, const char* elementTag, char* value, int *pErrCode)
{
return Xer_DecodePrimitiveElement(pByteStrm, elementTag, value, pErrCode);
}
