const unsigned char * ASN1_STRING_get0_data(const ASN1_STRING *x);
unsigned char * ASN1_STRING_data(ASN1_STRING *x);
- ASN1_STRING * ASN1_STRING_dup(ASN1_STRING *a);
+ ASN1_STRING * ASN1_STRING_dup(const ASN1_STRING *a);
int ASN1_STRING_cmp(ASN1_STRING *a, ASN1_STRING *b);