xref: /dragonfly/crypto/libressl/include/openssl/asn1.h (revision de0e0e4d)

/* $OpenBSD: asn1.h,v 1.70 2022/09/11 17:22:52 tb Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#ifndef HEADER_ASN1_H
#define HEADER_ASN1_H

#include <time.h>

#include <openssl/opensslconf.h>

#ifndef OPENSSL_NO_BIO
#include <openssl/bio.h>
#endif
#include <openssl/stack.h>
#include <openssl/safestack.h>

#include <openssl/ossl_typ.h>
#ifndef OPENSSL_NO_DEPRECATED
#include <openssl/bn.h>
#endif

#ifdef  __cplusplus
extern "C" {
#endif

#define V_ASN1_UNIVERSAL		0x00
#define	V_ASN1_APPLICATION		0x40
#define V_ASN1_CONTEXT_SPECIFIC		0x80
#define V_ASN1_PRIVATE			0xc0

#define V_ASN1_CONSTRUCTED		0x20
#define V_ASN1_PRIMITIVE_TAG		0x1f
#define V_ASN1_PRIMATIVE_TAG		0x1f

#define V_ASN1_APP_CHOOSE		-2	/* let the recipient choose */
#define V_ASN1_OTHER			-3	/* used in ASN1_TYPE */
#define V_ASN1_ANY			-4	/* used in ASN1 template code */

#define V_ASN1_NEG			0x100	/* negative flag */

#define V_ASN1_UNDEF			-1
#define V_ASN1_EOC			0
#define V_ASN1_BOOLEAN			1	/**/
#define V_ASN1_INTEGER			2
#define V_ASN1_NEG_INTEGER		(2 | V_ASN1_NEG)
#define V_ASN1_BIT_STRING		3
#define V_ASN1_OCTET_STRING		4
#define V_ASN1_NULL			5
#define V_ASN1_OBJECT			6
#define V_ASN1_OBJECT_DESCRIPTOR	7
#define V_ASN1_EXTERNAL			8
#define V_ASN1_REAL			9
#define V_ASN1_ENUMERATED		10
#define V_ASN1_NEG_ENUMERATED		(10 | V_ASN1_NEG)
#define V_ASN1_UTF8STRING		12
#define V_ASN1_SEQUENCE			16
#define V_ASN1_SET			17
#define V_ASN1_NUMERICSTRING		18	/**/
#define V_ASN1_PRINTABLESTRING		19
#define V_ASN1_T61STRING		20
#define V_ASN1_TELETEXSTRING		20	/* alias */
#define V_ASN1_VIDEOTEXSTRING		21	/**/
#define V_ASN1_IA5STRING		22
#define V_ASN1_UTCTIME			23
#define V_ASN1_GENERALIZEDTIME		24	/**/
#define V_ASN1_GRAPHICSTRING		25	/**/
#define V_ASN1_ISO64STRING		26	/**/
#define V_ASN1_VISIBLESTRING		26	/* alias */
#define V_ASN1_GENERALSTRING		27	/**/
#define V_ASN1_UNIVERSALSTRING		28	/**/
#define V_ASN1_BMPSTRING		30

#define B_ASN1_NUMERICSTRING	0x0001
#define B_ASN1_PRINTABLESTRING	0x0002
#define B_ASN1_T61STRING	0x0004
#define B_ASN1_TELETEXSTRING	0x0004
#define B_ASN1_VIDEOTEXSTRING	0x0008
#define B_ASN1_IA5STRING	0x0010
#define B_ASN1_GRAPHICSTRING	0x0020
#define B_ASN1_ISO64STRING	0x0040
#define B_ASN1_VISIBLESTRING	0x0040
#define B_ASN1_GENERALSTRING	0x0080
#define B_ASN1_UNIVERSALSTRING	0x0100
#define B_ASN1_OCTET_STRING	0x0200
#define B_ASN1_BIT_STRING	0x0400
#define B_ASN1_BMPSTRING	0x0800
#define B_ASN1_UNKNOWN		0x1000
#define B_ASN1_UTF8STRING	0x2000
#define B_ASN1_UTCTIME		0x4000
#define B_ASN1_GENERALIZEDTIME	0x8000
#define B_ASN1_SEQUENCE		0x10000

/* For use with ASN1_mbstring_copy() */
#define MBSTRING_FLAG		0x1000
#define MBSTRING_UTF8		(MBSTRING_FLAG)
#define MBSTRING_ASC		(MBSTRING_FLAG|1)
#define MBSTRING_BMP		(MBSTRING_FLAG|2)
#define MBSTRING_UNIV		(MBSTRING_FLAG|4)

#define SMIME_OLDMIME		0x400
#define SMIME_CRLFEOL		0x800
#define SMIME_STREAM		0x1000

struct X509_algor_st;
DECLARE_STACK_OF(X509_ALGOR)

#define DECLARE_ASN1_SET_OF(type) /* filled in by mkstack.pl */
#define IMPLEMENT_ASN1_SET_OF(type) /* nothing, no longer needed */

#define ASN1_STRING_FLAG_BITS_LEFT 0x08 /* Set if 0x07 has bits left value */
/* This indicates that the ASN1_STRING is not a real value but just a place
 * holder for the location where indefinite length constructed data should
 * be inserted in the memory buffer
 */
#define ASN1_STRING_FLAG_NDEF 0x010

/* This flag is used by the CMS code to indicate that a string is not
 * complete and is a place holder for content when it had all been
 * accessed. The flag will be reset when content has been written to it.
 */

#define ASN1_STRING_FLAG_CONT 0x020
/* This flag is used by ASN1 code to indicate an ASN1_STRING is an MSTRING
 * type.
 */
#define ASN1_STRING_FLAG_MSTRING 0x040
/* This is the base type that holds just about everything :-) */
struct asn1_string_st {
	int length;
	int type;
	unsigned char *data;
	/* The value of the following field depends on the type being
	 * held.  It is mostly being used for BIT_STRING so if the
	 * input data has a non-zero 'unused bits' value, it will be
	 * handled correctly */
	long flags;
};

/* ASN1_ENCODING structure: this is used to save the received
 * encoding of an ASN1 type. This is useful to get round
 * problems with invalid encodings which can break signatures.
 */

typedef struct ASN1_ENCODING_st {
	unsigned char *enc;	/* DER encoding */
	long len;		/* Length of encoding */
	int modified;		 /* set to 1 if 'enc' is invalid */
} ASN1_ENCODING;

/* Used with ASN1 LONG type: if a long is set to this it is omitted */
#define ASN1_LONG_UNDEF	0x7fffffffL

#define STABLE_FLAGS_MALLOC	0x01
#define STABLE_NO_MASK		0x02
#define DIRSTRING_TYPE	\
 (B_ASN1_PRINTABLESTRING|B_ASN1_T61STRING|B_ASN1_BMPSTRING|B_ASN1_UTF8STRING)
#define PKCS9STRING_TYPE (DIRSTRING_TYPE|B_ASN1_IA5STRING)

typedef struct asn1_string_table_st {
	int nid;
	long minsize;
	long maxsize;
	unsigned long mask;
	unsigned long flags;
} ASN1_STRING_TABLE;

DECLARE_STACK_OF(ASN1_STRING_TABLE)

/* size limits: this stuff is taken straight from RFC2459 */

#define ub_name				32768
#define ub_common_name			64
#define ub_locality_name		128
#define ub_state_name			128
#define ub_organization_name		64
#define ub_organization_unit_name	64
#define ub_title			64
#define ub_email_address		128

/* Declarations for template structures: for full definitions
 * see asn1t.h
 */
typedef struct ASN1_TEMPLATE_st ASN1_TEMPLATE;
typedef struct ASN1_TLC_st ASN1_TLC;
/* This is just an opaque pointer */
typedef struct ASN1_VALUE_st ASN1_VALUE;

#ifndef LIBRESSL_INTERNAL

/* Declare ASN1 functions: the implement macro in in asn1t.h */

#define DECLARE_ASN1_FUNCTIONS(type) DECLARE_ASN1_FUNCTIONS_name(type, type)

#define DECLARE_ASN1_ALLOC_FUNCTIONS(type) \
	DECLARE_ASN1_ALLOC_FUNCTIONS_name(type, type)

#define DECLARE_ASN1_FUNCTIONS_name(type, name) \
	DECLARE_ASN1_ALLOC_FUNCTIONS_name(type, name) \
	DECLARE_ASN1_ENCODE_FUNCTIONS(type, name, name)

#define DECLARE_ASN1_FUNCTIONS_fname(type, itname, name) \
	DECLARE_ASN1_ALLOC_FUNCTIONS_name(type, name) \
	DECLARE_ASN1_ENCODE_FUNCTIONS(type, itname, name)

#define	DECLARE_ASN1_ENCODE_FUNCTIONS(type, itname, name) \
	type *d2i_##name(type **a, const unsigned char **in, long len); \
	int i2d_##name(type *a, unsigned char **out); \
	DECLARE_ASN1_ITEM(itname)

#define	DECLARE_ASN1_ENCODE_FUNCTIONS_const(type, name) \
	type *d2i_##name(type **a, const unsigned char **in, long len); \
	int i2d_##name(const type *a, unsigned char **out); \
	DECLARE_ASN1_ITEM(name)

#define	DECLARE_ASN1_NDEF_FUNCTION(name) \
	int i2d_##name##_NDEF(name *a, unsigned char **out);

#define DECLARE_ASN1_FUNCTIONS_const(name) \
	DECLARE_ASN1_ALLOC_FUNCTIONS(name) \
	DECLARE_ASN1_ENCODE_FUNCTIONS_const(name, name)

#define DECLARE_ASN1_ALLOC_FUNCTIONS_name(type, name) \
	type *name##_new(void); \
	void name##_free(type *a);

#define DECLARE_ASN1_PRINT_FUNCTION(stname) \
	DECLARE_ASN1_PRINT_FUNCTION_fname(stname, stname)

#define DECLARE_ASN1_PRINT_FUNCTION_fname(stname, fname) \
	int fname##_print_ctx(BIO *out, stname *x, int indent, \
					 const ASN1_PCTX *pctx);

#endif /* !LIBRESSL_INTERNAL */

#define D2I_OF(type) type *(*)(type **,const unsigned char **,long)
#define I2D_OF(type) int (*)(type *,unsigned char **)
#define I2D_OF_const(type) int (*)(const type *,unsigned char **)

#define CHECKED_D2I_OF(type, d2i) \
    ((d2i_of_void*) (1 ? d2i : ((D2I_OF(type))0)))
#define CHECKED_I2D_OF(type, i2d) \
    ((i2d_of_void*) (1 ? i2d : ((I2D_OF(type))0)))
#define CHECKED_NEW_OF(type, xnew) \
    ((void *(*)(void)) (1 ? xnew : ((type *(*)(void))0)))
#define CHECKED_PTR_OF(type, p) \
    ((void*) (1 ? p : (type*)0))
#define CHECKED_PPTR_OF(type, p) \
    ((void**) (1 ? p : (type**)0))

#define TYPEDEF_D2I_OF(type) typedef type *d2i_of_##type(type **,const unsigned char **,long)
#define TYPEDEF_I2D_OF(type) typedef int i2d_of_##type(type *,unsigned char **)
#define TYPEDEF_D2I2D_OF(type) TYPEDEF_D2I_OF(type); TYPEDEF_I2D_OF(type)

TYPEDEF_D2I2D_OF(void);

/* The following macros and typedefs allow an ASN1_ITEM
 * to be embedded in a structure and referenced. Since
 * the ASN1_ITEM pointers need to be globally accessible
 * (possibly from shared libraries) they may exist in
 * different forms. On platforms that support it the
 * ASN1_ITEM structure itself will be globally exported.
 * Other platforms will export a function that returns
 * an ASN1_ITEM pointer.
 *
 * To handle both cases transparently the macros below
 * should be used instead of hard coding an ASN1_ITEM
 * pointer in a structure.
 *
 * The structure will look like this:
 *
 * typedef struct SOMETHING_st {
 *      ...
 *      ASN1_ITEM_EXP *iptr;
 *      ...
 * } SOMETHING;
 *
 * It would be initialised as e.g.:
 *
 * SOMETHING somevar = {...,ASN1_ITEM_ref(X509),...};
 *
 * and the actual pointer extracted with:
 *
 * const ASN1_ITEM *it = ASN1_ITEM_ptr(somevar.iptr);
 *
 * Finally an ASN1_ITEM pointer can be extracted from an
 * appropriate reference with: ASN1_ITEM_rptr(X509). This
 * would be used when a function takes an ASN1_ITEM * argument.
 *
 */

/* ASN1_ITEM pointer exported type */
typedef const ASN1_ITEM ASN1_ITEM_EXP;

#ifndef LIBRESSL_INTERNAL

/* Macro to obtain ASN1_ITEM pointer from exported type */
#define ASN1_ITEM_ptr(iptr) (iptr)

/* Macro to include ASN1_ITEM pointer from base type */
#define ASN1_ITEM_ref(iptr) (&(iptr##_it))

#define ASN1_ITEM_rptr(ref) (&(ref##_it))

#define DECLARE_ASN1_ITEM(name) \
	extern const ASN1_ITEM name##_it;

#endif /* !LIBRESSL_INTERNAL */

/* Parameters used by ASN1_STRING_print_ex() */

/* These determine which characters to escape:
 * RFC2253 special characters, control characters and
 * MSB set characters
 */

#define ASN1_STRFLGS_ESC_2253		1
#define ASN1_STRFLGS_ESC_CTRL		2
#define ASN1_STRFLGS_ESC_MSB		4


/* This flag determines how we do escaping: normally
 * RC2253 backslash only, set this to use backslash and
 * quote.
 */

#define ASN1_STRFLGS_ESC_QUOTE		8


/* These three flags are internal use only. */

/* Character is a valid PrintableString character */
#define CHARTYPE_PRINTABLESTRING	0x10
/* Character needs escaping if it is the first character */
#define CHARTYPE_FIRST_ESC_2253		0x20
/* Character needs escaping if it is the last character */
#define CHARTYPE_LAST_ESC_2253		0x40

/* NB the internal flags are safely reused below by flags
 * handled at the top level.
 */

/* If this is set we convert all character strings
 * to UTF8 first
 */

#define ASN1_STRFLGS_UTF8_CONVERT	0x10

/* If this is set we don't attempt to interpret content:
 * just assume all strings are 1 byte per character. This
 * will produce some pretty odd looking output!
 */

#define ASN1_STRFLGS_IGNORE_TYPE	0x20

/* If this is set we include the string type in the output */
#define ASN1_STRFLGS_SHOW_TYPE		0x40

/* This determines which strings to display and which to
 * 'dump' (hex dump of content octets or DER encoding). We can
 * only dump non character strings or everything. If we
 * don't dump 'unknown' they are interpreted as character
 * strings with 1 octet per character and are subject to
 * the usual escaping options.
 */

#define ASN1_STRFLGS_DUMP_ALL		0x80
#define ASN1_STRFLGS_DUMP_UNKNOWN	0x100

/* These determine what 'dumping' does, we can dump the
 * content octets or the DER encoding: both use the
 * RFC2253 #NNNNN notation.
 */

#define ASN1_STRFLGS_DUMP_DER		0x200

/* All the string flags consistent with RFC2253,
 * escaping control characters isn't essential in
 * RFC2253 but it is advisable anyway.
 */

#define ASN1_STRFLGS_RFC2253	(ASN1_STRFLGS_ESC_2253 | \
				ASN1_STRFLGS_ESC_CTRL | \
				ASN1_STRFLGS_ESC_MSB | \
				ASN1_STRFLGS_UTF8_CONVERT | \
				ASN1_STRFLGS_DUMP_UNKNOWN | \
				ASN1_STRFLGS_DUMP_DER)

DECLARE_STACK_OF(ASN1_INTEGER)

DECLARE_STACK_OF(ASN1_GENERALSTRING)

typedef struct asn1_type_st {
	int type;
	union {
		char *ptr;
		ASN1_BOOLEAN		boolean;
		ASN1_STRING *		asn1_string;
		ASN1_OBJECT *		object;
		ASN1_INTEGER *		integer;
		ASN1_ENUMERATED *	enumerated;
		ASN1_BIT_STRING *	bit_string;
		ASN1_OCTET_STRING *	octet_string;
		ASN1_PRINTABLESTRING *	printablestring;
		ASN1_T61STRING *	t61string;
		ASN1_IA5STRING *	ia5string;
		ASN1_GENERALSTRING *	generalstring;
		ASN1_BMPSTRING *	bmpstring;
		ASN1_UNIVERSALSTRING *	universalstring;
		ASN1_UTCTIME *		utctime;
		ASN1_GENERALIZEDTIME *	generalizedtime;
		ASN1_VISIBLESTRING *	visiblestring;
		ASN1_UTF8STRING *	utf8string;
		/* set and sequence are left complete and still
		 * contain the set or sequence bytes */
		ASN1_STRING *		set;
		ASN1_STRING *		sequence;
		ASN1_VALUE *		asn1_value;
	} value;
} ASN1_TYPE;

DECLARE_STACK_OF(ASN1_TYPE)

typedef STACK_OF(ASN1_TYPE) ASN1_SEQUENCE_ANY;

ASN1_SEQUENCE_ANY *d2i_ASN1_SEQUENCE_ANY(ASN1_SEQUENCE_ANY **a, const unsigned char **in, long len);
int i2d_ASN1_SEQUENCE_ANY(const ASN1_SEQUENCE_ANY *a, unsigned char **out);
extern const ASN1_ITEM ASN1_SEQUENCE_ANY_it;
ASN1_SEQUENCE_ANY *d2i_ASN1_SET_ANY(ASN1_SEQUENCE_ANY **a, const unsigned char **in, long len);
int i2d_ASN1_SET_ANY(const ASN1_SEQUENCE_ANY *a, unsigned char **out);
extern const ASN1_ITEM ASN1_SET_ANY_it;

/* This is used to contain a list of bit names */
typedef struct BIT_STRING_BITNAME_st {
	int bitnum;
	const char *lname;
	const char *sname;
} BIT_STRING_BITNAME;

#define B_ASN1_TIME \
			B_ASN1_UTCTIME | \
			B_ASN1_GENERALIZEDTIME

#define B_ASN1_PRINTABLE \
			B_ASN1_NUMERICSTRING| \
			B_ASN1_PRINTABLESTRING| \
			B_ASN1_T61STRING| \
			B_ASN1_IA5STRING| \
			B_ASN1_BIT_STRING| \
			B_ASN1_UNIVERSALSTRING|\
			B_ASN1_BMPSTRING|\
			B_ASN1_UTF8STRING|\
			B_ASN1_SEQUENCE|\
			B_ASN1_UNKNOWN

#define B_ASN1_DIRECTORYSTRING \
			B_ASN1_PRINTABLESTRING| \
			B_ASN1_TELETEXSTRING|\
			B_ASN1_BMPSTRING|\
			B_ASN1_UNIVERSALSTRING|\
			B_ASN1_UTF8STRING

#define B_ASN1_DISPLAYTEXT \
			B_ASN1_IA5STRING| \
			B_ASN1_VISIBLESTRING| \
			B_ASN1_BMPSTRING|\
			B_ASN1_UTF8STRING

#ifndef LIBRESSL_INTERNAL
#define M_ASN1_IA5STRING_new ASN1_IA5STRING_new

#define M_ASN1_INTEGER_free ASN1_INTEGER_free
#define M_ASN1_ENUMERATED_free ASN1_ENUMERATED_free
#define M_ASN1_OCTET_STRING_free ASN1_OCTET_STRING_free

#define M_ASN1_OCTET_STRING_print ASN1_STRING_print

#define M_ASN1_STRING_data ASN1_STRING_data
#define M_ASN1_STRING_length ASN1_STRING_length
#endif

ASN1_TYPE *ASN1_TYPE_new(void);
void ASN1_TYPE_free(ASN1_TYPE *a);
ASN1_TYPE *d2i_ASN1_TYPE(ASN1_TYPE **a, const unsigned char **in, long len);
int i2d_ASN1_TYPE(ASN1_TYPE *a, unsigned char **out);
extern const ASN1_ITEM ASN1_ANY_it;

int ASN1_TYPE_get(const ASN1_TYPE *a);
void ASN1_TYPE_set(ASN1_TYPE *a, int type, void *value);
int ASN1_TYPE_set1(ASN1_TYPE *a, int type, const void *value);
int ASN1_TYPE_cmp(const ASN1_TYPE *a, const ASN1_TYPE *b);

ASN1_OBJECT *ASN1_OBJECT_new(void);
void ASN1_OBJECT_free(ASN1_OBJECT *a);
int i2d_ASN1_OBJECT(const ASN1_OBJECT *a, unsigned char **pp);
ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
    long length);

extern const ASN1_ITEM ASN1_OBJECT_it;

DECLARE_STACK_OF(ASN1_OBJECT)

ASN1_STRING *ASN1_STRING_new(void);
void ASN1_STRING_free(ASN1_STRING *a);
int ASN1_STRING_copy(ASN1_STRING *dst, const ASN1_STRING *str);
ASN1_STRING *ASN1_STRING_dup(const ASN1_STRING *a);
ASN1_STRING *ASN1_STRING_type_new(int type);
int ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b);
  /* Since this is used to store all sorts of things, via macros, for now, make
     its data void * */
int ASN1_STRING_set(ASN1_STRING *str, const void *data, int len);
void ASN1_STRING_set0(ASN1_STRING *str, void *data, int len);
int ASN1_STRING_length(const ASN1_STRING *x);
void ASN1_STRING_length_set(ASN1_STRING *x, int n);
int ASN1_STRING_type(const ASN1_STRING *x);
unsigned char *ASN1_STRING_data(ASN1_STRING *x);
const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *x);

ASN1_BIT_STRING *ASN1_BIT_STRING_new(void);
void ASN1_BIT_STRING_free(ASN1_BIT_STRING *a);
ASN1_BIT_STRING *d2i_ASN1_BIT_STRING(ASN1_BIT_STRING **a, const unsigned char **in, long len);
int i2d_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_BIT_STRING_it;
int ASN1_BIT_STRING_set(ASN1_BIT_STRING *a, unsigned char *d, int length);
int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *a, int n, int value);
int ASN1_BIT_STRING_get_bit(const ASN1_BIT_STRING *a, int n);
int ASN1_BIT_STRING_check(const ASN1_BIT_STRING *a,
    const unsigned char *flags, int flags_len);

#ifndef OPENSSL_NO_BIO
int ASN1_BIT_STRING_name_print(BIO *out, ASN1_BIT_STRING *bs,
    BIT_STRING_BITNAME *tbl, int indent);
#endif
int ASN1_BIT_STRING_num_asc(const char *name, BIT_STRING_BITNAME *tbl);
int ASN1_BIT_STRING_set_asc(ASN1_BIT_STRING *bs, const char *name, int value,
    BIT_STRING_BITNAME *tbl);

ASN1_INTEGER *ASN1_INTEGER_new(void);
void ASN1_INTEGER_free(ASN1_INTEGER *a);
ASN1_INTEGER *d2i_ASN1_INTEGER(ASN1_INTEGER **a, const unsigned char **in, long len);
int i2d_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **out);
extern const ASN1_ITEM ASN1_INTEGER_it;
ASN1_INTEGER *d2i_ASN1_UINTEGER(ASN1_INTEGER **a, const unsigned char **pp,
    long length);
ASN1_INTEGER *	ASN1_INTEGER_dup(const ASN1_INTEGER *x);
int ASN1_INTEGER_cmp(const ASN1_INTEGER *x, const ASN1_INTEGER *y);

ASN1_ENUMERATED *ASN1_ENUMERATED_new(void);
void ASN1_ENUMERATED_free(ASN1_ENUMERATED *a);
ASN1_ENUMERATED *d2i_ASN1_ENUMERATED(ASN1_ENUMERATED **a, const unsigned char **in, long len);
int i2d_ASN1_ENUMERATED(ASN1_ENUMERATED *a, unsigned char **out);
extern const ASN1_ITEM ASN1_ENUMERATED_it;

int ASN1_UTCTIME_check(const ASN1_UTCTIME *a);
ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t);
ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, time_t t,
    int offset_day, long offset_sec);
int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str);

#ifndef LIBRESSL_INTERNAL
int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t);
#endif /* !LIBRESSL_INTERNAL */

int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *a);
ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
    time_t t);
ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
    time_t t, int offset_day, long offset_sec);
int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str);

ASN1_OCTET_STRING *ASN1_OCTET_STRING_new(void);
void ASN1_OCTET_STRING_free(ASN1_OCTET_STRING *a);
ASN1_OCTET_STRING *d2i_ASN1_OCTET_STRING(ASN1_OCTET_STRING **a, const unsigned char **in, long len);
int i2d_ASN1_OCTET_STRING(ASN1_OCTET_STRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_OCTET_STRING_it;
ASN1_OCTET_STRING *ASN1_OCTET_STRING_dup(const ASN1_OCTET_STRING *a);
int ASN1_OCTET_STRING_cmp(const ASN1_OCTET_STRING *a,
    const ASN1_OCTET_STRING *b);
int ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *str, const unsigned char *data,
    int len);

ASN1_VISIBLESTRING *ASN1_VISIBLESTRING_new(void);
void ASN1_VISIBLESTRING_free(ASN1_VISIBLESTRING *a);
ASN1_VISIBLESTRING *d2i_ASN1_VISIBLESTRING(ASN1_VISIBLESTRING **a, const unsigned char **in, long len);
int i2d_ASN1_VISIBLESTRING(ASN1_VISIBLESTRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_VISIBLESTRING_it;
ASN1_UNIVERSALSTRING *ASN1_UNIVERSALSTRING_new(void);
void ASN1_UNIVERSALSTRING_free(ASN1_UNIVERSALSTRING *a);
ASN1_UNIVERSALSTRING *d2i_ASN1_UNIVERSALSTRING(ASN1_UNIVERSALSTRING **a, const unsigned char **in, long len);
int i2d_ASN1_UNIVERSALSTRING(ASN1_UNIVERSALSTRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_UNIVERSALSTRING_it;
ASN1_UTF8STRING *ASN1_UTF8STRING_new(void);
void ASN1_UTF8STRING_free(ASN1_UTF8STRING *a);
ASN1_UTF8STRING *d2i_ASN1_UTF8STRING(ASN1_UTF8STRING **a, const unsigned char **in, long len);
int i2d_ASN1_UTF8STRING(ASN1_UTF8STRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_UTF8STRING_it;
ASN1_NULL *ASN1_NULL_new(void);
void ASN1_NULL_free(ASN1_NULL *a);
ASN1_NULL *d2i_ASN1_NULL(ASN1_NULL **a, const unsigned char **in, long len);
int i2d_ASN1_NULL(ASN1_NULL *a, unsigned char **out);
extern const ASN1_ITEM ASN1_NULL_it;
ASN1_BMPSTRING *ASN1_BMPSTRING_new(void);
void ASN1_BMPSTRING_free(ASN1_BMPSTRING *a);
ASN1_BMPSTRING *d2i_ASN1_BMPSTRING(ASN1_BMPSTRING **a, const unsigned char **in, long len);
int i2d_ASN1_BMPSTRING(ASN1_BMPSTRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_BMPSTRING_it;

ASN1_STRING *ASN1_PRINTABLE_new(void);
void ASN1_PRINTABLE_free(ASN1_STRING *a);
ASN1_STRING *d2i_ASN1_PRINTABLE(ASN1_STRING **a, const unsigned char **in, long len);
int i2d_ASN1_PRINTABLE(ASN1_STRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_PRINTABLE_it;

ASN1_STRING *DIRECTORYSTRING_new(void);
void DIRECTORYSTRING_free(ASN1_STRING *a);
ASN1_STRING *d2i_DIRECTORYSTRING(ASN1_STRING **a, const unsigned char **in, long len);
int i2d_DIRECTORYSTRING(ASN1_STRING *a, unsigned char **out);
extern const ASN1_ITEM DIRECTORYSTRING_it;
ASN1_STRING *DISPLAYTEXT_new(void);
void DISPLAYTEXT_free(ASN1_STRING *a);
ASN1_STRING *d2i_DISPLAYTEXT(ASN1_STRING **a, const unsigned char **in, long len);
int i2d_DISPLAYTEXT(ASN1_STRING *a, unsigned char **out);
extern const ASN1_ITEM DISPLAYTEXT_it;
ASN1_PRINTABLESTRING *ASN1_PRINTABLESTRING_new(void);
void ASN1_PRINTABLESTRING_free(ASN1_PRINTABLESTRING *a);
ASN1_PRINTABLESTRING *d2i_ASN1_PRINTABLESTRING(ASN1_PRINTABLESTRING **a, const unsigned char **in, long len);
int i2d_ASN1_PRINTABLESTRING(ASN1_PRINTABLESTRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_PRINTABLESTRING_it;
ASN1_T61STRING *ASN1_T61STRING_new(void);
void ASN1_T61STRING_free(ASN1_T61STRING *a);
ASN1_T61STRING *d2i_ASN1_T61STRING(ASN1_T61STRING **a, const unsigned char **in, long len);
int i2d_ASN1_T61STRING(ASN1_T61STRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_T61STRING_it;
ASN1_IA5STRING *ASN1_IA5STRING_new(void);
void ASN1_IA5STRING_free(ASN1_IA5STRING *a);
ASN1_IA5STRING *d2i_ASN1_IA5STRING(ASN1_IA5STRING **a, const unsigned char **in, long len);
int i2d_ASN1_IA5STRING(ASN1_IA5STRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_IA5STRING_it;
ASN1_GENERALSTRING *ASN1_GENERALSTRING_new(void);
void ASN1_GENERALSTRING_free(ASN1_GENERALSTRING *a);
ASN1_GENERALSTRING *d2i_ASN1_GENERALSTRING(ASN1_GENERALSTRING **a, const unsigned char **in, long len);
int i2d_ASN1_GENERALSTRING(ASN1_GENERALSTRING *a, unsigned char **out);
extern const ASN1_ITEM ASN1_GENERALSTRING_it;
ASN1_UTCTIME *ASN1_UTCTIME_new(void);
void ASN1_UTCTIME_free(ASN1_UTCTIME *a);
ASN1_UTCTIME *d2i_ASN1_UTCTIME(ASN1_UTCTIME **a, const unsigned char **in, long len);
int i2d_ASN1_UTCTIME(ASN1_UTCTIME *a, unsigned char **out);
extern const ASN1_ITEM ASN1_UTCTIME_it;
ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_new(void);
void ASN1_GENERALIZEDTIME_free(ASN1_GENERALIZEDTIME *a);
ASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME **a, const unsigned char **in, long len);
int i2d_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME *a, unsigned char **out);
extern const ASN1_ITEM ASN1_GENERALIZEDTIME_it;
ASN1_TIME *ASN1_TIME_new(void);
void ASN1_TIME_free(ASN1_TIME *a);
ASN1_TIME *d2i_ASN1_TIME(ASN1_TIME **a, const unsigned char **in, long len);
int i2d_ASN1_TIME(ASN1_TIME *a, unsigned char **out);
extern const ASN1_ITEM ASN1_TIME_it;

int ASN1_TIME_to_tm(const ASN1_TIME *s, struct tm *tm);
int ASN1_TIME_compare(const ASN1_TIME *t1, const ASN1_TIME *t2);
int ASN1_TIME_cmp_time_t(const ASN1_TIME *s, time_t t2);
int ASN1_TIME_normalize(ASN1_TIME *t);
int ASN1_TIME_set_string_X509(ASN1_TIME *time, const char *str);
int ASN1_TIME_diff(int *pday, int *psec, const ASN1_TIME *from,
    const ASN1_TIME *to);

extern const ASN1_ITEM ASN1_OCTET_STRING_NDEF_it;

ASN1_TIME *ASN1_TIME_set(ASN1_TIME *s, time_t t);
ASN1_TIME *ASN1_TIME_set_tm(ASN1_TIME *s, struct tm *tm);
ASN1_TIME *ASN1_TIME_adj(ASN1_TIME *s, time_t t, int offset_day,
    long offset_sec);
int ASN1_TIME_check(const ASN1_TIME *t);
ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(const ASN1_TIME *t,
    ASN1_GENERALIZEDTIME **out);
int ASN1_TIME_set_string(ASN1_TIME *s, const char *str);

#ifndef OPENSSL_NO_BIO
int i2a_ASN1_INTEGER(BIO *bp, const ASN1_INTEGER *a);
int a2i_ASN1_INTEGER(BIO *bp, ASN1_INTEGER *bs, char *buf, int size);
int i2a_ASN1_ENUMERATED(BIO *bp, const ASN1_ENUMERATED *a);
int a2i_ASN1_ENUMERATED(BIO *bp, ASN1_ENUMERATED *bs, char *buf, int size);
int i2a_ASN1_OBJECT(BIO *bp, const ASN1_OBJECT *a);
int a2i_ASN1_STRING(BIO *bp, ASN1_STRING *bs, char *buf, int size);
int i2a_ASN1_STRING(BIO *bp, const ASN1_STRING *a, int type);
#endif
int i2t_ASN1_OBJECT(char *buf, int buf_len, const ASN1_OBJECT *a);

int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num);
ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,
    const char *sn, const char *ln);

int ASN1_INTEGER_get_uint64(uint64_t *out_val, const ASN1_INTEGER *aint);
int ASN1_INTEGER_set_uint64(ASN1_INTEGER *aint, uint64_t val);
int ASN1_INTEGER_get_int64(int64_t *out_val, const ASN1_INTEGER *aint);
int ASN1_INTEGER_set_int64(ASN1_INTEGER *aint, int64_t val);
int ASN1_INTEGER_set(ASN1_INTEGER *a, long v);
long ASN1_INTEGER_get(const ASN1_INTEGER *a);
ASN1_INTEGER *BN_to_ASN1_INTEGER(const BIGNUM *bn, ASN1_INTEGER *ai);
BIGNUM *ASN1_INTEGER_to_BN(const ASN1_INTEGER *ai, BIGNUM *bn);

int ASN1_ENUMERATED_get_int64(int64_t *out_val, const ASN1_ENUMERATED *aenum);
int ASN1_ENUMERATED_set_int64(ASN1_ENUMERATED *aenum, int64_t val);
int ASN1_ENUMERATED_set(ASN1_ENUMERATED *a, long v);
long ASN1_ENUMERATED_get(const ASN1_ENUMERATED *a);
ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(const BIGNUM *bn, ASN1_ENUMERATED *ai);
BIGNUM *ASN1_ENUMERATED_to_BN(const ASN1_ENUMERATED *ai, BIGNUM *bn);

/* General */
/* given a string, return the correct type, max is the maximum length */
int ASN1_PRINTABLE_type(const unsigned char *s, int max);

/* SPECIALS */
int ASN1_get_object(const unsigned char **pp, long *plength, int *ptag,
    int *pclass, long omax);
void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,
    int xclass);
int ASN1_put_eoc(unsigned char **pp);
int ASN1_object_size(int constructed, int length, int tag);

void *ASN1_item_dup(const ASN1_ITEM *it, void *x);

#ifndef LIBRESSL_INTERNAL

void *ASN1_dup(i2d_of_void *i2d, d2i_of_void *d2i, void *x);

#endif /* !LIBRESSL_INTERNAL */

void *ASN1_d2i_fp(void *(*xnew)(void), d2i_of_void *d2i, FILE *in, void **x);

#define ASN1_d2i_fp_of(type,xnew,d2i,in,x) \
    ((type*)ASN1_d2i_fp(CHECKED_NEW_OF(type, xnew), \
			CHECKED_D2I_OF(type, d2i), \
			in, \
			CHECKED_PPTR_OF(type, x)))

void *ASN1_item_d2i_fp(const ASN1_ITEM *it, FILE *in, void *x);
int ASN1_i2d_fp(i2d_of_void *i2d, FILE *out, void *x);

#define ASN1_i2d_fp_of(type,i2d,out,x) \
    (ASN1_i2d_fp(CHECKED_I2D_OF(type, i2d), \
		 out, \
		 CHECKED_PTR_OF(type, x)))

#define ASN1_i2d_fp_of_const(type,i2d,out,x) \
    (ASN1_i2d_fp(CHECKED_I2D_OF(const type, i2d), \
		 out, \
		 CHECKED_PTR_OF(const type, x)))

int ASN1_item_i2d_fp(const ASN1_ITEM *it, FILE *out, void *x);
int ASN1_STRING_print_ex_fp(FILE *fp, const ASN1_STRING *str,
    unsigned long flags);

int ASN1_STRING_to_UTF8(unsigned char **out, const ASN1_STRING *in);

#ifndef OPENSSL_NO_BIO
void *ASN1_d2i_bio(void *(*xnew)(void), d2i_of_void *d2i, BIO *in, void **x);

#define ASN1_d2i_bio_of(type,xnew,d2i,in,x) \
    ((type*)ASN1_d2i_bio( CHECKED_NEW_OF(type, xnew), \
			  CHECKED_D2I_OF(type, d2i), \
			  in, \
			  CHECKED_PPTR_OF(type, x)))

void *ASN1_item_d2i_bio(const ASN1_ITEM *it, BIO *in, void *x);
int ASN1_i2d_bio(i2d_of_void *i2d, BIO *out, unsigned char *x);

#define ASN1_i2d_bio_of(type,i2d,out,x) \
    (ASN1_i2d_bio(CHECKED_I2D_OF(type, i2d), \
		  out, \
		  CHECKED_PTR_OF(type, x)))

#define ASN1_i2d_bio_of_const(type,i2d,out,x) \
    (ASN1_i2d_bio(CHECKED_I2D_OF(const type, i2d), \
		  out, \
		  CHECKED_PTR_OF(const type, x)))

int ASN1_item_i2d_bio(const ASN1_ITEM *it, BIO *out, void *x);
int ASN1_UTCTIME_print(BIO *fp, const ASN1_UTCTIME *a);
int ASN1_GENERALIZEDTIME_print(BIO *fp, const ASN1_GENERALIZEDTIME *a);
int ASN1_TIME_print(BIO *fp, const ASN1_TIME *a);
int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v);
int ASN1_STRING_print_ex(BIO *out, const ASN1_STRING *str, unsigned long flags);
int ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num,
    unsigned char *buf, int off);
int ASN1_parse(BIO *bp, const unsigned char *pp, long len, int indent);
int ASN1_parse_dump(BIO *bp, const unsigned char *pp, long len, int indent, int dump);
#endif

unsigned long ASN1_tag2bit(int tag);
const char *ASN1_tag2str(int tag);

int ASN1_UNIVERSALSTRING_to_string(ASN1_UNIVERSALSTRING *s);

int ASN1_TYPE_set_octetstring(ASN1_TYPE *a, const unsigned char *data, int len);
int ASN1_TYPE_get_octetstring(const ASN1_TYPE *a, unsigned char *data,
    int max_len);
int ASN1_TYPE_set_int_octetstring(ASN1_TYPE *a, long num, const unsigned char *data,
    int len);
int ASN1_TYPE_get_int_octetstring(const ASN1_TYPE *a, long *num,
    unsigned char *data, int max_len);

ASN1_STRING *ASN1_item_pack(void *obj, const ASN1_ITEM *it,
    ASN1_OCTET_STRING **oct);
void *ASN1_item_unpack(const ASN1_STRING *oct, const ASN1_ITEM *it);

void ASN1_STRING_set_default_mask(unsigned long mask);
int ASN1_STRING_set_default_mask_asc(const char *p);
unsigned long ASN1_STRING_get_default_mask(void);
int ASN1_mbstring_copy(ASN1_STRING **out, const unsigned char *in, int len,
    int inform, unsigned long mask);
int ASN1_mbstring_ncopy(ASN1_STRING **out, const unsigned char *in, int len,
    int inform, unsigned long mask, long minsize, long maxsize);

ASN1_STRING *ASN1_STRING_set_by_NID(ASN1_STRING **out,
    const unsigned char *in, int inlen, int inform, int nid);
ASN1_STRING_TABLE *ASN1_STRING_TABLE_get(int nid);
int ASN1_STRING_TABLE_add(int, long, long, unsigned long, unsigned long);
void ASN1_STRING_TABLE_cleanup(void);

/* ASN1 template functions */

/* Old API compatible functions */
ASN1_VALUE *ASN1_item_new(const ASN1_ITEM *it);
void ASN1_item_free(ASN1_VALUE *val, const ASN1_ITEM *it);
ASN1_VALUE *ASN1_item_d2i(ASN1_VALUE **val, const unsigned char **in,
    long len, const ASN1_ITEM *it);
int ASN1_item_i2d(ASN1_VALUE *val, unsigned char **out, const ASN1_ITEM *it);
int ASN1_item_ndef_i2d(ASN1_VALUE *val, unsigned char **out, const ASN1_ITEM *it);

void ASN1_add_oid_module(void);

ASN1_TYPE *ASN1_generate_nconf(const char *str, CONF *nconf);
ASN1_TYPE *ASN1_generate_v3(const char *str, X509V3_CTX *cnf);

/* ASN1 Print flags */

/* Indicate missing OPTIONAL fields */
#define ASN1_PCTX_FLAGS_SHOW_ABSENT		0x001
/* Mark start and end of SEQUENCE */
#define ASN1_PCTX_FLAGS_SHOW_SEQUENCE		0x002
/* Mark start and end of SEQUENCE/SET OF */
#define ASN1_PCTX_FLAGS_SHOW_SSOF		0x004
/* Show the ASN1 type of primitives */
#define ASN1_PCTX_FLAGS_SHOW_TYPE		0x008
/* Don't show ASN1 type of ANY */
#define ASN1_PCTX_FLAGS_NO_ANY_TYPE		0x010
/* Don't show ASN1 type of MSTRINGs */
#define ASN1_PCTX_FLAGS_NO_MSTRING_TYPE		0x020
/* Don't show field names in SEQUENCE */
#define ASN1_PCTX_FLAGS_NO_FIELD_NAME		0x040
/* Show structure names of each SEQUENCE field */
#define ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME	0x080
/* Don't show structure name even at top level */
#define ASN1_PCTX_FLAGS_NO_STRUCT_NAME		0x100

int ASN1_item_print(BIO *out, ASN1_VALUE *ifld, int indent,
    const ASN1_ITEM *it, const ASN1_PCTX *pctx);
ASN1_PCTX *ASN1_PCTX_new(void);
void ASN1_PCTX_free(ASN1_PCTX *p);
unsigned long ASN1_PCTX_get_flags(const ASN1_PCTX *p);
void ASN1_PCTX_set_flags(ASN1_PCTX *p, unsigned long flags);
unsigned long ASN1_PCTX_get_nm_flags(const ASN1_PCTX *p);
void ASN1_PCTX_set_nm_flags(ASN1_PCTX *p, unsigned long flags);
unsigned long ASN1_PCTX_get_cert_flags(const ASN1_PCTX *p);
void ASN1_PCTX_set_cert_flags(ASN1_PCTX *p, unsigned long flags);
unsigned long ASN1_PCTX_get_oid_flags(const ASN1_PCTX *p);
void ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags);
unsigned long ASN1_PCTX_get_str_flags(const ASN1_PCTX *p);
void ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags);

const BIO_METHOD *BIO_f_asn1(void);

BIO *BIO_new_NDEF(BIO *out, ASN1_VALUE *val, const ASN1_ITEM *it);

int i2d_ASN1_bio_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
    const ASN1_ITEM *it);
int PEM_write_bio_ASN1_stream(BIO *out, ASN1_VALUE *val, BIO *in, int flags,
    const char *hdr, const ASN1_ITEM *it);
int SMIME_write_ASN1(BIO *bio, ASN1_VALUE *val, BIO *data, int flags,
    int ctype_nid, int econt_nid, STACK_OF(X509_ALGOR) *mdalgs,
    const ASN1_ITEM *it);
ASN1_VALUE *SMIME_read_ASN1(BIO *bio, BIO **bcont, const ASN1_ITEM *it);
int SMIME_crlf_copy(BIO *in, BIO *out, int flags);
int SMIME_text(BIO *in, BIO *out);

void ERR_load_ASN1_strings(void);

/* Error codes for the ASN1 functions. */

/* Function codes. */
#define ASN1_F_A2D_ASN1_OBJECT				 100
#define ASN1_F_A2I_ASN1_ENUMERATED			 101
#define ASN1_F_A2I_ASN1_INTEGER				 102
#define ASN1_F_A2I_ASN1_STRING				 103
#define ASN1_F_APPEND_EXP				 176
#define ASN1_F_ASN1_BIT_STRING_SET_BIT			 183
#define ASN1_F_ASN1_CB					 177
#define ASN1_F_ASN1_CHECK_TLEN				 104
#define ASN1_F_ASN1_COLLATE_PRIMITIVE			 105
#define ASN1_F_ASN1_COLLECT				 106
#define ASN1_F_ASN1_D2I_EX_PRIMITIVE			 108
#define ASN1_F_ASN1_D2I_FP				 109
#define ASN1_F_ASN1_D2I_READ_BIO			 107
#define ASN1_F_ASN1_DIGEST				 184
#define ASN1_F_ASN1_DO_ADB				 110
#define ASN1_F_ASN1_DUP					 111
#define ASN1_F_ASN1_ENUMERATED_SET			 112
#define ASN1_F_ASN1_ENUMERATED_TO_BN			 113
#define ASN1_F_ASN1_EX_C2I				 204
#define ASN1_F_ASN1_FIND_END				 190
#define ASN1_F_ASN1_GENERALIZEDTIME_ADJ			 216
#define ASN1_F_ASN1_GENERALIZEDTIME_SET			 185
#define ASN1_F_ASN1_GENERATE_V3				 178
#define ASN1_F_ASN1_GET_OBJECT				 114
#define ASN1_F_ASN1_HEADER_NEW				 115
#define ASN1_F_ASN1_I2D_BIO				 116
#define ASN1_F_ASN1_I2D_FP				 117
#define ASN1_F_ASN1_INTEGER_SET				 118
#define ASN1_F_ASN1_INTEGER_TO_BN			 119
#define ASN1_F_ASN1_ITEM_D2I_FP				 206
#define ASN1_F_ASN1_ITEM_DUP				 191
#define ASN1_F_ASN1_ITEM_EX_COMBINE_NEW			 121
#define ASN1_F_ASN1_ITEM_EX_D2I				 120
#define ASN1_F_ASN1_ITEM_I2D_BIO			 192
#define ASN1_F_ASN1_ITEM_I2D_FP				 193
#define ASN1_F_ASN1_ITEM_PACK				 198
#define ASN1_F_ASN1_ITEM_SIGN				 195
#define ASN1_F_ASN1_ITEM_SIGN_CTX			 220
#define ASN1_F_ASN1_ITEM_UNPACK				 199
#define ASN1_F_ASN1_ITEM_VERIFY				 197
#define ASN1_F_ASN1_MBSTRING_NCOPY			 122
#define ASN1_F_ASN1_OBJECT_NEW				 123
#define ASN1_F_ASN1_OUTPUT_DATA				 214
#define ASN1_F_ASN1_PACK_STRING				 124
#define ASN1_F_ASN1_PCTX_NEW				 205
#define ASN1_F_ASN1_PKCS5_PBE_SET			 125
#define ASN1_F_ASN1_SEQ_PACK				 126
#define ASN1_F_ASN1_SEQ_UNPACK				 127
#define ASN1_F_ASN1_SIGN				 128
#define ASN1_F_ASN1_STR2TYPE				 179
#define ASN1_F_ASN1_STRING_SET				 186
#define ASN1_F_ASN1_STRING_TABLE_ADD			 129
#define ASN1_F_ASN1_STRING_TYPE_NEW			 130
#define ASN1_F_ASN1_TEMPLATE_EX_D2I			 132
#define ASN1_F_ASN1_TEMPLATE_NEW			 133
#define ASN1_F_ASN1_TEMPLATE_NOEXP_D2I			 131
#define ASN1_F_ASN1_TIME_ADJ				 217
#define ASN1_F_ASN1_TIME_SET				 175
#define ASN1_F_ASN1_TYPE_GET_INT_OCTETSTRING		 134
#define ASN1_F_ASN1_TYPE_GET_OCTETSTRING		 135
#define ASN1_F_ASN1_UNPACK_STRING			 136
#define ASN1_F_ASN1_UTCTIME_ADJ				 218
#define ASN1_F_ASN1_UTCTIME_SET				 187
#define ASN1_F_ASN1_VERIFY				 137
#define ASN1_F_B64_READ_ASN1				 209
#define ASN1_F_B64_WRITE_ASN1				 210
#define ASN1_F_BIO_NEW_NDEF				 208
#define ASN1_F_BITSTR_CB				 180
#define ASN1_F_BN_TO_ASN1_ENUMERATED			 138
#define ASN1_F_BN_TO_ASN1_INTEGER			 139
#define ASN1_F_C2I_ASN1_BIT_STRING			 189
#define ASN1_F_C2I_ASN1_INTEGER				 194
#define ASN1_F_C2I_ASN1_OBJECT				 196
#define ASN1_F_COLLECT_DATA				 140
#define ASN1_F_D2I_ASN1_BIT_STRING			 141
#define ASN1_F_D2I_ASN1_BOOLEAN				 142
#define ASN1_F_D2I_ASN1_BYTES				 143
#define ASN1_F_D2I_ASN1_GENERALIZEDTIME			 144
#define ASN1_F_D2I_ASN1_HEADER				 145
#define ASN1_F_D2I_ASN1_INTEGER				 146
#define ASN1_F_D2I_ASN1_OBJECT				 147
#define ASN1_F_D2I_ASN1_SET				 148
#define ASN1_F_D2I_ASN1_TYPE_BYTES			 149
#define ASN1_F_D2I_ASN1_UINTEGER			 150
#define ASN1_F_D2I_ASN1_UTCTIME				 151
#define ASN1_F_D2I_AUTOPRIVATEKEY			 207
#define ASN1_F_D2I_NETSCAPE_RSA				 152
#define ASN1_F_D2I_NETSCAPE_RSA_2			 153
#define ASN1_F_D2I_PRIVATEKEY				 154
#define ASN1_F_D2I_PUBLICKEY				 155
#define ASN1_F_D2I_RSA_NET				 200
#define ASN1_F_D2I_RSA_NET_2				 201
#define ASN1_F_D2I_X509					 156
#define ASN1_F_D2I_X509_CINF				 157
#define ASN1_F_D2I_X509_PKEY				 159
#define ASN1_F_I2D_ASN1_BIO_STREAM			 211
#define ASN1_F_I2D_ASN1_SET				 188
#define ASN1_F_I2D_ASN1_TIME				 160
#define ASN1_F_I2D_DSA_PUBKEY				 161
#define ASN1_F_I2D_EC_PUBKEY				 181
#define ASN1_F_I2D_PRIVATEKEY				 163
#define ASN1_F_I2D_PUBLICKEY				 164
#define ASN1_F_I2D_RSA_NET				 162
#define ASN1_F_I2D_RSA_PUBKEY				 165
#define ASN1_F_LONG_C2I					 166
#define ASN1_F_OID_MODULE_INIT				 174
#define ASN1_F_PARSE_TAGGING				 182
#define ASN1_F_PKCS5_PBE2_SET_IV			 167
#define ASN1_F_PKCS5_PBE_SET				 202
#define ASN1_F_PKCS5_PBE_SET0_ALGOR			 215
#define ASN1_F_PKCS5_PBKDF2_SET				 219
#define ASN1_F_SMIME_READ_ASN1				 212
#define ASN1_F_SMIME_TEXT				 213
#define ASN1_F_X509_CINF_NEW				 168
#define ASN1_F_X509_CRL_ADD0_REVOKED			 169
#define ASN1_F_X509_INFO_NEW				 170
#define ASN1_F_X509_NAME_ENCODE				 203
#define ASN1_F_X509_NAME_EX_D2I				 158
#define ASN1_F_X509_NAME_EX_NEW				 171
#define ASN1_F_X509_NEW					 172
#define ASN1_F_X509_PKEY_NEW				 173

/* Reason codes. */
#define ASN1_R_ADDING_OBJECT				 171
#define ASN1_R_ASN1_PARSE_ERROR				 203
#define ASN1_R_ASN1_SIG_PARSE_ERROR			 204
#define ASN1_R_AUX_ERROR				 100
#define ASN1_R_BAD_CLASS				 101
#define ASN1_R_BAD_OBJECT_HEADER			 102
#define ASN1_R_BAD_PASSWORD_READ			 103
#define ASN1_R_BAD_TAG					 104
#define ASN1_R_BAD_TEMPLATE				 230
#define ASN1_R_BMPSTRING_IS_WRONG_LENGTH		 214
#define ASN1_R_BN_LIB					 105
#define ASN1_R_BOOLEAN_IS_WRONG_LENGTH			 106
#define ASN1_R_BUFFER_TOO_SMALL				 107
#define ASN1_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER		 108
#define ASN1_R_CONTEXT_NOT_INITIALISED			 217
#define ASN1_R_DATA_IS_WRONG				 109
#define ASN1_R_DECODE_ERROR				 110
#define ASN1_R_DECODING_ERROR				 111
#define ASN1_R_DEPTH_EXCEEDED				 174
#define ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED	 198
#define ASN1_R_ENCODE_ERROR				 112
#define ASN1_R_ERROR_GETTING_TIME			 173
#define ASN1_R_ERROR_LOADING_SECTION			 172
#define ASN1_R_ERROR_PARSING_SET_ELEMENT		 113
#define ASN1_R_ERROR_SETTING_CIPHER_PARAMS		 114
#define ASN1_R_EXPECTING_AN_INTEGER			 115
#define ASN1_R_EXPECTING_AN_OBJECT			 116
#define ASN1_R_EXPECTING_A_BOOLEAN			 117
#define ASN1_R_EXPECTING_A_TIME				 118
#define ASN1_R_EXPLICIT_LENGTH_MISMATCH			 119
#define ASN1_R_EXPLICIT_TAG_NOT_CONSTRUCTED		 120
#define ASN1_R_FIELD_MISSING				 121
#define ASN1_R_FIRST_NUM_TOO_LARGE			 122
#define ASN1_R_HEADER_TOO_LONG				 123
#define ASN1_R_ILLEGAL_BITSTRING_FORMAT			 175
#define ASN1_R_ILLEGAL_BOOLEAN				 176
#define ASN1_R_ILLEGAL_CHARACTERS			 124
#define ASN1_R_ILLEGAL_FORMAT				 177
#define ASN1_R_ILLEGAL_HEX				 178
#define ASN1_R_ILLEGAL_IMPLICIT_TAG			 179
#define ASN1_R_ILLEGAL_INTEGER				 180
#define ASN1_R_ILLEGAL_NEGATIVE_VALUE			 226
#define ASN1_R_ILLEGAL_NESTED_TAGGING			 181
#define ASN1_R_ILLEGAL_NULL				 125
#define ASN1_R_ILLEGAL_NULL_VALUE			 182
#define ASN1_R_ILLEGAL_OBJECT				 183
#define ASN1_R_ILLEGAL_OPTIONAL_ANY			 126
#define ASN1_R_ILLEGAL_OPTIONS_ON_ITEM_TEMPLATE		 170
#define ASN1_R_ILLEGAL_TAGGED_ANY			 127
#define ASN1_R_ILLEGAL_TIME_VALUE			 184
#define ASN1_R_INTEGER_NOT_ASCII_FORMAT			 185
#define ASN1_R_INTEGER_TOO_LARGE_FOR_LONG		 128
#define ASN1_R_INVALID_BIT_STRING_BITS_LEFT		 220
#define ASN1_R_INVALID_BMPSTRING_LENGTH			 129
#define ASN1_R_INVALID_DIGIT				 130
#define ASN1_R_INVALID_MIME_TYPE			 205
#define ASN1_R_INVALID_MODIFIER				 186
#define ASN1_R_INVALID_NUMBER				 187
#define ASN1_R_INVALID_OBJECT_ENCODING			 216
#define ASN1_R_INVALID_SEPARATOR			 131
#define ASN1_R_INVALID_TIME_FORMAT			 132
#define ASN1_R_INVALID_UNIVERSALSTRING_LENGTH		 133
#define ASN1_R_INVALID_UTF8STRING			 134
#define ASN1_R_IV_TOO_LARGE				 135
#define ASN1_R_LENGTH_ERROR				 136
#define ASN1_R_LIST_ERROR				 188
#define ASN1_R_MIME_NO_CONTENT_TYPE			 206
#define ASN1_R_MIME_PARSE_ERROR				 207
#define ASN1_R_MIME_SIG_PARSE_ERROR			 208
#define ASN1_R_MISSING_EOC				 137
#define ASN1_R_MISSING_SECOND_NUMBER			 138
#define ASN1_R_MISSING_VALUE				 189
#define ASN1_R_MSTRING_NOT_UNIVERSAL			 139
#define ASN1_R_MSTRING_WRONG_TAG			 140
#define ASN1_R_NESTED_ASN1_STRING			 197
#define ASN1_R_NESTED_TOO_DEEP				 219
#define ASN1_R_NON_HEX_CHARACTERS			 141
#define ASN1_R_NOT_ASCII_FORMAT				 190
#define ASN1_R_NOT_ENOUGH_DATA				 142
#define ASN1_R_NO_CONTENT_TYPE				 209
#define ASN1_R_NO_DEFAULT_DIGEST			 201
#define ASN1_R_NO_MATCHING_CHOICE_TYPE			 143
#define ASN1_R_NO_MULTIPART_BODY_FAILURE		 210
#define ASN1_R_NO_MULTIPART_BOUNDARY			 211
#define ASN1_R_NO_SIG_CONTENT_TYPE			 212
#define ASN1_R_NULL_IS_WRONG_LENGTH			 144
#define ASN1_R_OBJECT_NOT_ASCII_FORMAT			 191
#define ASN1_R_ODD_NUMBER_OF_CHARS			 145
#define ASN1_R_PRIVATE_KEY_HEADER_MISSING		 146
#define ASN1_R_SECOND_NUMBER_TOO_LARGE			 147
#define ASN1_R_SEQUENCE_LENGTH_MISMATCH			 148
#define ASN1_R_SEQUENCE_NOT_CONSTRUCTED			 149
#define ASN1_R_SEQUENCE_OR_SET_NEEDS_CONFIG		 192
#define ASN1_R_SHORT_LINE				 150
#define ASN1_R_SIG_INVALID_MIME_TYPE			 213
#define ASN1_R_STREAMING_NOT_SUPPORTED			 202
#define ASN1_R_STRING_TOO_LONG				 151
#define ASN1_R_STRING_TOO_SHORT				 152
#define ASN1_R_TAG_VALUE_TOO_HIGH			 153
#define ASN1_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD 154
#define ASN1_R_TIME_NOT_ASCII_FORMAT			 193
#define ASN1_R_TOO_LARGE				 223
#define ASN1_R_TOO_LONG					 155
#define ASN1_R_TOO_SMALL				 224
#define ASN1_R_TYPE_NOT_CONSTRUCTED			 156
#define ASN1_R_TYPE_NOT_PRIMITIVE			 231
#define ASN1_R_UNABLE_TO_DECODE_RSA_KEY			 157
#define ASN1_R_UNABLE_TO_DECODE_RSA_PRIVATE_KEY		 158
#define ASN1_R_UNEXPECTED_EOC				 159
#define ASN1_R_UNIVERSALSTRING_IS_WRONG_LENGTH		 215
#define ASN1_R_UNKNOWN_FORMAT				 160
#define ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM		 161
#define ASN1_R_UNKNOWN_OBJECT_TYPE			 162
#define ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE			 163
#define ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM		 199
#define ASN1_R_UNKNOWN_TAG				 194
#define ASN1_R_UNKOWN_FORMAT				 195
#define ASN1_R_UNSUPPORTED_ANY_DEFINED_BY_TYPE		 164
#define ASN1_R_UNSUPPORTED_CIPHER			 165
#define ASN1_R_UNSUPPORTED_ENCRYPTION_ALGORITHM		 166
#define ASN1_R_UNSUPPORTED_PUBLIC_KEY_TYPE		 167
#define ASN1_R_UNSUPPORTED_TYPE				 196
#define ASN1_R_WRONG_INTEGER_TYPE			 225
#define ASN1_R_WRONG_PUBLIC_KEY_TYPE			 200
#define ASN1_R_WRONG_TAG				 168
#define ASN1_R_WRONG_TYPE				 169

int ASN1_time_parse(const char *_bytes, size_t _len, struct tm *_tm, int _mode);
int ASN1_time_tm_cmp(struct tm *_tm1, struct tm *_tm2);
#ifdef  __cplusplus
}
#endif
#endif