int i2d_ASN1_PRINTABLE(ASN1_STRING *a,unsigned char **pp);
ASN1_STRING *d2i_ASN1_PRINTABLE(ASN1_STRING **a,
unsigned char **pp, long l);
int i2d_ASN1_PRINTABLE(ASN1_STRING *a,unsigned char **pp);
ASN1_STRING *d2i_ASN1_PRINTABLE(ASN1_STRING **a,
unsigned char **pp, long l);