# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.

from __future__ import absolute_import, division, print_function

INCLUDES = """
#include <openssl/asn1.h>
"""

TYPES = """
/*
 * TODO: This typedef is wrong.
 *
 * This is due to limitations of cffi.
 * See https://bitbucket.org/cffi/cffi/issue/69
 *
 * For another possible work-around (not used here because it involves more
 * complicated use of the cffi API which falls outside the general pattern used
 * by this package), see
 * http://paste.pound-python.org/show/iJcTUMkKeBeS6yXpZWUU/
 *
 * The work-around used here is to just be sure to declare a type that is at
 * least as large as the real type.  Maciej explains:
 *
 * <fijal> I think you want to declare your value too large (e.g. long)
 * <fijal> that way you'll never pass garbage
 */
typedef intptr_t time_t;

typedef int ASN1_BOOLEAN;
typedef ... ASN1_INTEGER;

struct asn1_string_st {
    int length;
    int type;
    unsigned char *data;
    long flags;
};

typedef struct asn1_string_st ASN1_OCTET_STRING;
typedef struct asn1_string_st ASN1_IA5STRING;
typedef ... ASN1_BIT_STRING;
typedef ... ASN1_OBJECT;
typedef ... ASN1_STRING;
typedef ... ASN1_TYPE;
typedef ... ASN1_GENERALIZEDTIME;
typedef ... ASN1_ENUMERATED;
typedef ... ASN1_ITEM;
typedef ... ASN1_VALUE;

typedef struct {
    ...;
} ASN1_TIME;
typedef ... ASN1_ITEM_EXP;

typedef ... ASN1_UTCTIME;

static const int V_ASN1_GENERALIZEDTIME;

static const int MBSTRING_FLAG;
static const int MBSTRING_ASC;
static const int MBSTRING_BMP;
static const int MBSTRING_UTF8;
static const int MBSTRING_UNIV;
"""

FUNCTIONS = """
ASN1_OBJECT *ASN1_OBJECT_new(void);
void ASN1_OBJECT_free(ASN1_OBJECT *);

/*  ASN1 OBJECT IDENTIFIER */
ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **, const unsigned char **, long);
int i2d_ASN1_OBJECT(ASN1_OBJECT *, unsigned char **);

/*  ASN1 STRING */
ASN1_STRING *ASN1_STRING_new(void);
ASN1_STRING *ASN1_STRING_type_new(int);
void ASN1_STRING_free(ASN1_STRING *);
unsigned char *ASN1_STRING_data(ASN1_STRING *);
int ASN1_STRING_set(ASN1_STRING *, const void *, int);
int ASN1_STRING_type(ASN1_STRING *);
int ASN1_STRING_to_UTF8(unsigned char **, ASN1_STRING *);

/*  ASN1 OCTET STRING */
ASN1_OCTET_STRING *ASN1_OCTET_STRING_new(void);
void ASN1_OCTET_STRING_free(ASN1_OCTET_STRING *);
int ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *, const unsigned char *, int);

/*  ASN1 INTEGER */
ASN1_INTEGER *ASN1_INTEGER_new(void);
void ASN1_INTEGER_free(ASN1_INTEGER *);
int ASN1_INTEGER_set(ASN1_INTEGER *, long);
int i2a_ASN1_INTEGER(BIO *, ASN1_INTEGER *);

/*  ASN1 TIME */
ASN1_TIME *ASN1_TIME_new(void);
void ASN1_TIME_free(ASN1_TIME *);
ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *,
                                                   ASN1_GENERALIZEDTIME **);

/*  ASN1 UTCTIME */
ASN1_UTCTIME *ASN1_UTCTIME_new(void);
void ASN1_UTCTIME_free(ASN1_UTCTIME *);
int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *, time_t);
ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *, time_t);

/*  ASN1 GENERALIZEDTIME */
int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *, const char *);
void ASN1_GENERALIZEDTIME_free(ASN1_GENERALIZEDTIME *);

/*  ASN1 ENUMERATED */
ASN1_ENUMERATED *ASN1_ENUMERATED_new(void);
void ASN1_ENUMERATED_free(ASN1_ENUMERATED *);
int ASN1_ENUMERATED_set(ASN1_ENUMERATED *, long);

ASN1_VALUE *ASN1_item_d2i(ASN1_VALUE **, const unsigned char **, long,
                          const ASN1_ITEM *);
int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *, int, int);
"""

MACROS = """
void ASN1_BIT_STRING_free(ASN1_BIT_STRING *);
/* This is not a macro, but is const on some versions of OpenSSL */
int ASN1_BIT_STRING_get_bit(ASN1_BIT_STRING *, int);
ASN1_TIME *M_ASN1_TIME_dup(void *);
const ASN1_ITEM *ASN1_ITEM_ptr(ASN1_ITEM_EXP *);

/* These aren't macros these arguments are all const X on openssl > 1.0.x */

int ASN1_TIME_print(BIO *, ASN1_TIME *);
int ASN1_STRING_length(ASN1_STRING *);
ASN1_STRING *ASN1_STRING_dup(ASN1_STRING *);
int ASN1_STRING_cmp(ASN1_STRING *, ASN1_STRING *);
int ASN1_UTCTIME_print(BIO *, ASN1_UTCTIME *);

ASN1_OCTET_STRING *ASN1_OCTET_STRING_dup(ASN1_OCTET_STRING *);
int ASN1_OCTET_STRING_cmp(ASN1_OCTET_STRING *, ASN1_OCTET_STRING *);

ASN1_INTEGER *ASN1_INTEGER_dup(ASN1_INTEGER *);
int ASN1_INTEGER_cmp(ASN1_INTEGER *, ASN1_INTEGER *);
long ASN1_INTEGER_get(ASN1_INTEGER *);

BIGNUM *ASN1_INTEGER_to_BN(ASN1_INTEGER *, BIGNUM *);
ASN1_INTEGER *BN_to_ASN1_INTEGER(BIGNUM *, ASN1_INTEGER *);

/* These isn't a macro the arg is const on openssl 1.0.2+ */
int ASN1_GENERALIZEDTIME_check(ASN1_GENERALIZEDTIME *);
int ASN1_UTCTIME_check(ASN1_UTCTIME *);

/* Not a macro, const on openssl 1.0 */
int ASN1_STRING_set_default_mask_asc(char *);
"""

CUSTOMIZATIONS = """
"""

CONDITIONAL_NAMES = {}
