int ASNDerWriteElement( unsigned char* pbData, unsigned char ucElementSequence,
unsigned char ucType, unsigned char* pbTokenValue, long nLength )
{
// First get the length
long nInternalLength = 0L;
long nElementLength = ASNDerCalcElementLength( nLength, &nInternalLength );
long nTempLength = 0L;
// Write out the sequence byte and the length of the type and data
nTempLength = ASNDerWriteToken( pbData, ucElementSequence, NULL, nInternalLength );
// Adjust the data pointer
pbData += nTempLength;
// Now write the type and the data.
nTempLength = ASNDerWriteToken( pbData, ucType, pbTokenValue, nLength );
return nElementLength;
}
int spnegoCreateNegTokenHint( SPNEGO_MECH_OID *pMechTypeList, int MechTypeCnt,
unsigned char *pbPrincipal, SPNEGO_TOKEN_HANDLE* phSpnegoToken )
{
int nReturn;
long nTokenLength = 0L;
long nInternalTokenLength = 0L;
unsigned long ulPrincipalLen;
unsigned char* pbMechListMIC;
unsigned long ulMechListMICLen;
unsigned char* pbTokenData = NULL;
SPNEGO_TOKEN** ppSpnegoToken = (SPNEGO_TOKEN**) phSpnegoToken;
if ( NULL == ppSpnegoToken || NULL == pbPrincipal )
return (SPNEGO_E_INVALID_PARAMETER);
/*
* Get the actual token size
*/
ulPrincipalLen = strlen((char *)pbPrincipal);
ulMechListMICLen = ASNDerCalcElementLength( ulPrincipalLen, NULL );
nReturn = CalculateMinSpnegoInitTokenSize(
0, /* ulMechTokenLen */
ulMechListMICLen,
pMechTypeList,
MechTypeCnt,
0, /* nReqFlagsAvailable */
&nTokenLength,
&nInternalTokenLength );
if ( nReturn != SPNEGO_E_SUCCESS )
return (nReturn);
// Allocate a buffer to hold the data.
pbTokenData = calloc( 1, nTokenLength );
if ( NULL == pbTokenData )
return ( SPNEGO_E_OUT_OF_MEMORY );
/*
* Construct the MechListMIC
*/
pbMechListMIC = pbTokenData + (nTokenLength - ulMechListMICLen);
(void) ASNDerWriteElement( pbMechListMIC, SPNEGO_NEGINIT_ELEMENT_MECHTYPES,
GENERALSTR, pbPrincipal, ulPrincipalLen );
// Now write the token
nReturn = CreateSpnegoInitToken(
pMechTypeList,
MechTypeCnt,
0, /* ContextFlags */
NULL, 0, /* MechToken, len */
pbMechListMIC,
ulMechListMICLen,
pbTokenData,
nTokenLength,
nInternalTokenLength );
if ( nReturn != SPNEGO_E_SUCCESS ) {
free( pbTokenData );
return (nReturn);
}
// This will copy our allocated pointer, and ensure that the sructure cleans
// up the data later
nReturn = InitTokenFromBinary( SPNEGO_TOKEN_INTERNAL_COPYPTR,
SPNEGO_TOKEN_INTERNAL_FLAGS_FREEDATA,
pbTokenData, nTokenLength, ppSpnegoToken );
// Cleanup on failure
if ( nReturn != SPNEGO_E_SUCCESS ) {
free( pbTokenData );
return (nReturn);
}
return (SPNEGO_E_SUCCESS);
}
