openssl asn.1使用

unsigned int unTempLen = 0;
unsigned char szBuffer[8] = {0};
unsigned char szOut[1024] = {0};
ASN1_INTEGER asn1Int;
asn1Int.length = 8;
asn1Int.type = V_ASN1_INTEGER;
asn1Int.data = szBuffer;
ASN1_INTEGER_set(&asn1Int, 365);
unsigned char* pOut = szOut;
int nRetLen = i2d_ASN1_INTEGER(&asn1Int, &pOut);
unTempLen += nRetLen;

asn1Int.length = 8;
asn1Int.type = V_ASN1_INTEGER;
asn1Int.data = szBuffer;
ASN1_INTEGER_set(&asn1Int, 0xFF);
pOut = szOut+unTempLen;
nRetLen = i2d_ASN1_INTEGER(&asn1Int, &pOut);