Botan::BER_Decoder Class Reference

#include <ber_dec.h>

Public Member Functions
	BER_Decoder (DataSource &)
	BER_Decoder (const uint8_t[], size_t)
	BER_Decoder (const BER_Object &obj)
	BER_Decoder (const secure_vector< uint8_t > &)
	BER_Decoder (const std::vector< uint8_t > &vec)
	BER_Decoder (const BER_Decoder &)
BER_Decoder &	decode (bool &v)
BER_Decoder &	decode (size_t &v)
BER_Decoder &	decode (class BigInt &v)
template<typename Alloc >
BER_Decoder &	decode (std::vector< uint8_t, Alloc > &out, ASN1_Tag real_type)
BER_Decoder &	decode (bool &v, ASN1_Tag type_tag, ASN1_Tag class_tag=CONTEXT_SPECIFIC)
BER_Decoder &	decode (size_t &v, ASN1_Tag type_tag, ASN1_Tag class_tag=CONTEXT_SPECIFIC)
BER_Decoder &	decode (class BigInt &v, ASN1_Tag type_tag, ASN1_Tag class_tag=CONTEXT_SPECIFIC)
BER_Decoder &	decode (std::vector< uint8_t > &v, ASN1_Tag real_type, ASN1_Tag type_tag, ASN1_Tag class_tag=CONTEXT_SPECIFIC)
BER_Decoder &	decode (secure_vector< uint8_t > &v, ASN1_Tag real_type, ASN1_Tag type_tag, ASN1_Tag class_tag=CONTEXT_SPECIFIC)
BER_Decoder &	decode (class ASN1_Object &obj, ASN1_Tag type_tag=NO_OBJECT, ASN1_Tag class_tag=NO_OBJECT)
template<typename T >
BER_Decoder &	decode_and_check (const T &expected, const std::string &error_msg)
uint64_t	decode_constrained_integer (ASN1_Tag type_tag, ASN1_Tag class_tag, size_t T_bytes)
template<typename T >
BER_Decoder &	decode_integer_type (T &out)
template<typename T >
BER_Decoder &	decode_integer_type (T &out, ASN1_Tag type_tag, ASN1_Tag class_tag=CONTEXT_SPECIFIC)
template<typename T >
BER_Decoder &	decode_list (std::vector< T > &out, ASN1_Tag type_tag=SEQUENCE, ASN1_Tag class_tag=UNIVERSAL)
BER_Decoder &	decode_null ()
BER_Decoder &	decode_octet_string_bigint (class BigInt &b)
template<typename T >
BER_Decoder &	decode_optional (T &out, ASN1_Tag type_tag, ASN1_Tag class_tag, const T &default_value=T())
template<typename T >
BER_Decoder &	decode_optional_implicit (T &out, ASN1_Tag type_tag, ASN1_Tag class_tag, ASN1_Tag real_type, ASN1_Tag real_class, const T &default_value=T())
template<typename Alloc >
BER_Decoder &	decode_optional_string (std::vector< uint8_t, Alloc > &out, ASN1_Tag real_type, uint16_t type_no, ASN1_Tag class_tag=CONTEXT_SPECIFIC)
BER_Decoder &	discard_remaining ()
BER_Decoder &	end_cons ()
BER_Decoder &	get_next (BER_Object &ber)
BER_Object	get_next_object ()
std::vector< uint8_t >	get_next_octet_string ()
template<typename T >
BER_Decoder &	get_next_value (T &out, ASN1_Tag type_tag, ASN1_Tag class_tag=CONTEXT_SPECIFIC)
bool	more_items () const
BER_Decoder &	operator= (const BER_Decoder &)=delete
void	push_back (const BER_Object &obj)
template<typename Alloc >
BER_Decoder &	raw_bytes (std::vector< uint8_t, Alloc > &out)
BER_Decoder	start_cons (ASN1_Tag type_tag, ASN1_Tag class_tag=UNIVERSAL)
BER_Decoder &	verify_end ()

Detailed Description

BER Decoding Object

Definition at line 19 of file ber_dec.h.

Constructor & Destructor Documentation

BER_Decoder() [1/6]

Botan::BER_Decoder::BER_Decoder ( DataSource &  src )

explicit

Definition at line 269 of file ber_dec.cpp.

Referenced by decode_optional().

   {
   m_source = &src;
   }

BER_Decoder() [2/6]

Botan::BER_Decoder::BER_Decoder	(	const uint8_t	data[],
		size_t	length
	)

Definition at line 277 of file ber_dec.cpp.

   {
   m_data_src.reset(new DataSource_Memory(data, length));
   m_source = m_data_src.get();
   }

BER_Decoder() [3/6]

Botan::BER_Decoder::BER_Decoder ( const BER_Object &  obj )

explicit

Definition at line 262 of file ber_dec.cpp.

                                              : BER_Decoder(obj.bits(), obj.length())
   {
   }

BER_Decoder() [4/6]

Botan::BER_Decoder::BER_Decoder ( const secure_vector< uint8_t > &  data )

explicit

Definition at line 286 of file ber_dec.cpp.

   {
   m_data_src.reset(new DataSource_Memory(data));
   m_source = m_data_src.get();
   }

BER_Decoder() [5/6]

Botan::BER_Decoder::BER_Decoder ( const std::vector< uint8_t > &  vec )

explicit

Definition at line 295 of file ber_dec.cpp.

   {
   m_data_src.reset(new DataSource_Memory(data.data(), data.size()));
   m_source = m_data_src.get();
   }

BER_Decoder() [6/6]

Botan::BER_Decoder::BER_Decoder

(

const BER_Decoder &

other

)

Definition at line 304 of file ber_dec.cpp.

   {
   m_source = other.m_source;

   // take ownership
   std::swap(m_data_src, other.m_data_src);
   m_parent = other.m_parent;
   }

Member Function Documentation

decode() [1/10]

BER_Decoder & Botan::BER_Decoder::decode

(

bool &

v

)

Definition at line 338 of file ber_dec.cpp.

References Botan::BOOLEAN, and Botan::UNIVERSAL.

Referenced by Botan::PK_Verifier::check_signature(), Botan::Curve25519_PrivateKey::Curve25519_PrivateKey(), decode(), decode_constrained_integer(), Botan::Attribute::decode_from(), Botan::AlternativeName::decode_from(), Botan::AlgorithmIdentifier::decode_from(), Botan::OCSP::CertID::decode_from(), Botan::X509_DN::decode_from(), Botan::CRL_Entry::decode_from(), Botan::OCSP::SingleResponse::decode_from(), Botan::X509_Object::decode_from(), Botan::GeneralSubtree::decode_from(), Botan::Extensions::decode_from(), decode_list(), decode_octet_string_bigint(), decode_optional(), decode_optional_implicit(), decode_optional_string(), Botan::DL_Scheme_PrivateKey::DL_Scheme_PrivateKey(), Botan::Ed25519_PrivateKey::Ed25519_PrivateKey(), get_next_octet_string(), Botan::GOST_3410_PublicKey::GOST_3410_PublicKey(), Botan::X509::load_key(), Botan::McEliece_PrivateKey::McEliece_PrivateKey(), Botan::McEliece_PublicKey::McEliece_PublicKey(), Botan::pbes2_decrypt(), Botan::OCSP::Response::Response(), Botan::RSA_PublicKey::RSA_PublicKey(), and Botan::TLS::Session::Session().

   {
   return decode(out, BOOLEAN, UNIVERSAL);
   }

decode() [2/10]

BER_Decoder & Botan::BER_Decoder::decode

(

size_t &

v

)

Definition at line 346 of file ber_dec.cpp.

References decode(), Botan::INTEGER, and Botan::UNIVERSAL.

   {
   return decode(out, INTEGER, UNIVERSAL);
   }

decode() [3/10]

BER_Decoder & Botan::BER_Decoder::decode

(

class BigInt &

v

)

Definition at line 354 of file ber_dec.cpp.

References decode(), Botan::INTEGER, and Botan::UNIVERSAL.

   {
   return decode(out, INTEGER, UNIVERSAL);
   }

decode() [4/10]

template<typename Alloc >

BER_Decoder& Botan::BER_Decoder::decode ( std::vector< uint8_t, Alloc > &  out, ASN1_Tag  real_type  )

inline

Definition at line 91 of file ber_dec.h.

References Botan::PEM_Code::decode(), and Botan::UNIVERSAL.

         {
         return decode(out, real_type, real_type, UNIVERSAL);
         }

decode() [5/10]

BER_Decoder & Botan::BER_Decoder::decode	(	bool &	v,
		ASN1_Tag	type_tag,
		ASN1_Tag	class_tag = CONTEXT_SPECIFIC
	)

Definition at line 377 of file ber_dec.cpp.

References Botan::BER_Object::assert_is_a(), Botan::BER_Object::bits(), get_next_object(), and Botan::BER_Object::length().

   {
   BER_Object obj = get_next_object();
   obj.assert_is_a(type_tag, class_tag);

   if(obj.length() != 1)
      throw BER_Decoding_Error("BER boolean value had invalid size");

   out = (obj.bits()[0]) ? true : false;
   return (*this);
   }

decode() [6/10]

BER_Decoder & Botan::BER_Decoder::decode	(	size_t &	v,
		ASN1_Tag	type_tag,
		ASN1_Tag	class_tag = CONTEXT_SPECIFIC
	)

Definition at line 393 of file ber_dec.cpp.

References Botan::BigInt::bits(), Botan::BigInt::byte_at(), and decode().

   {
   BigInt integer;
   decode(integer, type_tag, class_tag);

   if(integer.bits() > 32)
      throw BER_Decoding_Error("Decoded integer value larger than expected");

   out = 0;
   for(size_t i = 0; i != 4; ++i)
      out = (out << 8) | integer.byte_at(3-i);

   return (*this);
   }

decode() [7/10]

BER_Decoder & Botan::BER_Decoder::decode	(	class BigInt &	v,
		ASN1_Tag	type_tag,
		ASN1_Tag	class_tag = CONTEXT_SPECIFIC
	)

Definition at line 436 of file ber_dec.cpp.

References Botan::BER_Object::assert_is_a(), Botan::BER_Object::bits(), Botan::BigInt::flip_sign(), get_next_object(), and Botan::BER_Object::length().

   {
   BER_Object obj = get_next_object();
   obj.assert_is_a(type_tag, class_tag);

   if(obj.length() == 0)
      {
      out = 0;
      }
   else
      {
      const bool negative = (obj.bits()[0] & 0x80) ? true : false;

      if(negative)
         {
         secure_vector<uint8_t> vec(obj.bits(), obj.bits() + obj.length());
         for(size_t i = obj.length(); i > 0; --i)
            if(vec[i-1]--)
               break;
         for(size_t i = 0; i != obj.length(); ++i)
            vec[i] = ~vec[i];
         out = BigInt(vec.data(), vec.size());
         out.flip_sign();
         }
      else
         {
         out = BigInt(obj.bits(), obj.length());
         }
      }

   return (*this);
   }

decode() [8/10]

BER_Decoder & Botan::BER_Decoder::decode	(	std::vector< uint8_t > &	v,
		ASN1_Tag	real_type,
		ASN1_Tag	type_tag,
		ASN1_Tag	class_tag = CONTEXT_SPECIFIC
	)

Definition at line 516 of file ber_dec.cpp.

References Botan::BIT_STRING, get_next_object(), and Botan::OCTET_STRING.

   {
   if(real_type != OCTET_STRING && real_type != BIT_STRING)
      throw BER_Bad_Tag("Bad tag for {BIT,OCTET} STRING", real_type);

   asn1_decode_binary_string(buffer, get_next_object(), real_type, type_tag, class_tag);
   return (*this);
   }

decode() [9/10]

BER_Decoder & Botan::BER_Decoder::decode	(	secure_vector< uint8_t > &	v,
		ASN1_Tag	real_type,
		ASN1_Tag	type_tag,
		ASN1_Tag	class_tag = CONTEXT_SPECIFIC
	)

Definition at line 505 of file ber_dec.cpp.

References Botan::BIT_STRING, get_next_object(), and Botan::OCTET_STRING.

   {
   if(real_type != OCTET_STRING && real_type != BIT_STRING)
      throw BER_Bad_Tag("Bad tag for {BIT,OCTET} STRING", real_type);

   asn1_decode_binary_string(buffer, get_next_object(), real_type, type_tag, class_tag);
   return (*this);
   }

decode() [10/10]

BER_Decoder & Botan::BER_Decoder::decode	(	class ASN1_Object &	obj,
		ASN1_Tag	type_tag = NO_OBJECT,
		ASN1_Tag	class_tag = NO_OBJECT
	)

Definition at line 316 of file ber_dec.cpp.

References Botan::ASN1_Object::decode_from().

   {
   obj.decode_from(*this);
   return (*this);
   }

decode_and_check()

template<typename T >

BER_Decoder& Botan::BER_Decoder::decode_and_check ( const T &  expected, const std::string &  error_msg  )

inline

Definition at line 163 of file ber_dec.h.

References Botan::PEM_Code::decode(), and T.

Referenced by Botan::EC_PrivateKey::EC_PrivateKey(), Botan::OCSP::Response::Response(), Botan::RSA_PrivateKey::RSA_PrivateKey(), and Botan::TLS::Session::Session().

         {
         T actual;
         decode(actual);

         if(actual != expected)
            throw Decoding_Error(error_msg);

         return (*this);
         }

decode_constrained_integer()

uint64_t Botan::BER_Decoder::decode_constrained_integer	(	ASN1_Tag	type_tag,
		ASN1_Tag	class_tag,
		size_t	T_bytes
	)

Definition at line 413 of file ber_dec.cpp.

References Botan::BigInt::bits(), Botan::BigInt::byte_at(), and decode().

   {
   if(T_bytes > 8)
      throw BER_Decoding_Error("Can't decode small integer over 8 bytes");

   BigInt integer;
   decode(integer, type_tag, class_tag);

   if(integer.bits() > 8*T_bytes)
      throw BER_Decoding_Error("Decoded integer value larger than expected");

   uint64_t out = 0;
   for(size_t i = 0; i != 8; ++i)
      out = (out << 8) | integer.byte_at(7-i);

   return out;
   }

decode_integer_type() [1/2]

template<typename T >

BER_Decoder& Botan::BER_Decoder::decode_integer_type ( T &  out )

inline

Definition at line 128 of file ber_dec.h.

References Botan::INTEGER, and Botan::UNIVERSAL.

Referenced by Botan::TLS::Session::Session().

         {
         return decode_integer_type<T>(out, INTEGER, UNIVERSAL);
         }

decode_integer_type() [2/2]

template<typename T >

BER_Decoder& Botan::BER_Decoder::decode_integer_type ( T &  out, ASN1_Tag  type_tag, ASN1_Tag  class_tag = CONTEXT_SPECIFIC  )

inline

Definition at line 134 of file ber_dec.h.

References T.

         {
         out = static_cast<T>(decode_constrained_integer(type_tag, class_tag, sizeof(out)));
         return (*this);
         }

decode_list()

template<typename T >

BER_Decoder & Botan::BER_Decoder::decode_list	(	std::vector< T > &	out,
		ASN1_Tag	type_tag = SEQUENCE,
		ASN1_Tag	class_tag = UNIVERSAL
	)

Definition at line 290 of file ber_dec.h.

References decode(), end_cons(), more_items(), push_back(), start_cons(), and T.

Referenced by Botan::OCSP::Response::Response().

   {
   BER_Decoder list = start_cons(type_tag, class_tag);

   while(list.more_items())
      {
      T value;
      list.decode(value);
      vec.push_back(value);
      }

   list.end_cons();

   return (*this);
   }

decode_null()

BER_Decoder & Botan::BER_Decoder::decode_null

(

)

Definition at line 326 of file ber_dec.cpp.

References Botan::BER_Object::assert_is_a(), get_next_object(), Botan::BER_Object::length(), Botan::NULL_TAG, and Botan::UNIVERSAL.

   {
   BER_Object obj = get_next_object();
   obj.assert_is_a(NULL_TAG, UNIVERSAL);
   if(obj.length() > 0)
      throw BER_Decoding_Error("NULL object had nonzero size");
   return (*this);
   }

decode_octet_string_bigint()

BER_Decoder & Botan::BER_Decoder::decode_octet_string_bigint

(

class BigInt &

b

)

Definition at line 359 of file ber_dec.cpp.

References decode(), Botan::BigInt::decode(), and Botan::OCTET_STRING.

   {
   secure_vector<uint8_t> out_vec;
   decode(out_vec, OCTET_STRING);
   out = BigInt::decode(out_vec.data(), out_vec.size());
   return (*this);
   }

decode_optional()

template<typename T >

BER_Decoder & Botan::BER_Decoder::decode_optional	(	T &	out,
		ASN1_Tag	type_tag,
		ASN1_Tag	class_tag,
		const T &	default_value = T()
	)

Definition at line 232 of file ber_dec.h.

References BER_Decoder(), Botan::CONSTRUCTED, Botan::CONTEXT_SPECIFIC, decode(), get_next_object(), Botan::BER_Object::is_a(), and push_back().

Referenced by Botan::OCSP::SingleResponse::decode_from(), Botan::GeneralSubtree::decode_from(), Botan::Extensions::decode_from(), Botan::EC_PrivateKey::EC_PrivateKey(), Botan::pbes2_decrypt(), and Botan::OCSP::Response::Response().

   {
   BER_Object obj = get_next_object();

   if(obj.is_a(type_tag, class_tag))
      {
      if((class_tag & CONSTRUCTED) && (class_tag & CONTEXT_SPECIFIC))
         BER_Decoder(obj).decode(out).verify_end();
      else
         {
         push_back(obj);
         decode(out, type_tag, class_tag);
         }
      }
   else
      {
      out = default_value;
      push_back(obj);
      }

   return (*this);
   }

decode_optional_implicit()

template<typename T >

BER_Decoder & Botan::BER_Decoder::decode_optional_implicit	(	T &	out,
		ASN1_Tag	type_tag,
		ASN1_Tag	class_tag,
		ASN1_Tag	real_type,
		ASN1_Tag	real_class,
		const T &	default_value = T()
	)

Definition at line 262 of file ber_dec.h.

References decode(), get_next_object(), Botan::BER_Object::is_a(), and push_back().

Referenced by Botan::Cert_Extension::CRL_Distribution_Points::Distribution_Point::decode_from().

   {
   BER_Object obj = get_next_object();

   if(obj.is_a(type_tag, class_tag))
      {
      obj.set_tagging(real_type, real_class);
      push_back(obj);
      decode(out, real_type, real_class);
      }
   else
      {
      out = default_value;
      push_back(obj);
      }

   return (*this);
   }

decode_optional_string()

template<typename Alloc >

BER_Decoder& Botan::BER_Decoder::decode_optional_string ( std::vector< uint8_t, Alloc > &  out, ASN1_Tag  real_type, uint16_t  type_no, ASN1_Tag  class_tag = CONTEXT_SPECIFIC  )

inline

Definition at line 179 of file ber_dec.h.

References Botan::CONSTRUCTED, Botan::CONTEXT_SPECIFIC, Botan::PEM_Code::decode(), decode(), Botan::BER_Object::is_a(), and verify_end().

Referenced by Botan::EC_PrivateKey::EC_PrivateKey(), and Botan::OCSP::Response::Response().

         {
         BER_Object obj = get_next_object();

         ASN1_Tag type_tag = static_cast<ASN1_Tag>(type_no);

         if(obj.is_a(type_tag, class_tag))
            {
            if((class_tag & CONSTRUCTED) && (class_tag & CONTEXT_SPECIFIC))
               BER_Decoder(obj).decode(out, real_type).verify_end();
            else
               {
               push_back(obj);
               decode(out, real_type, type_tag, class_tag);
               }
            }
         else
            {
            out.clear();
            push_back(obj);
            }

         return (*this);
         }

discard_remaining()

BER_Decoder & Botan::BER_Decoder::discard_remaining

(

)

Definition at line 173 of file ber_dec.cpp.

References Botan::DataSource::read_byte().

Referenced by Botan::Curve25519_PrivateKey::Curve25519_PrivateKey(), and Botan::Ed25519_PrivateKey::Ed25519_PrivateKey().

   {
   uint8_t buf;
   while(m_source->read_byte(buf))
      {}
   return (*this);
   }

end_cons()

BER_Decoder & Botan::BER_Decoder::end_cons

(

)

Definition at line 253 of file ber_dec.cpp.

References Botan::DataSource::end_of_data().

Referenced by Botan::Attribute::decode_from(), Botan::AlgorithmIdentifier::decode_from(), Botan::OCSP::CertID::decode_from(), Botan::X509_DN::decode_from(), Botan::CRL_Entry::decode_from(), Botan::OCSP::SingleResponse::decode_from(), Botan::X509_Object::decode_from(), Botan::GeneralSubtree::decode_from(), Botan::Extensions::decode_from(), Botan::Cert_Extension::CRL_Distribution_Points::Distribution_Point::decode_from(), decode_list(), Botan::EC_PrivateKey::EC_PrivateKey(), Botan::X509::load_key(), Botan::McEliece_PrivateKey::McEliece_PrivateKey(), Botan::McEliece_PublicKey::McEliece_PublicKey(), Botan::pbes2_decrypt(), Botan::OCSP::Response::Response(), Botan::RSA_PublicKey::RSA_PublicKey(), and Botan::TLS::Session::Session().

   {
   if(!m_parent)
      throw Invalid_State("BER_Decoder::end_cons called with NULL parent");
   if(!m_source->end_of_data())
      throw Decoding_Error("BER_Decoder::end_cons called with data left");
   return (*m_parent);
   }

get_next()

BER_Decoder & Botan::BER_Decoder::get_next

(

BER_Object &

ber

)

Definition at line 220 of file ber_dec.cpp.

References get_next_object().

Referenced by Botan::OCSP::SingleResponse::decode_from().

   {
   ber = get_next_object();
   return (*this);
   }

get_next_object()

BER_Object Botan::BER_Decoder::get_next_object

(

)

Definition at line 184 of file ber_dec.cpp.

References Botan::DataSource::check_available(), Botan::EOC, Botan::BER_Object::is_set(), Botan::DataSource::read(), and Botan::BER_Object::tagging().

Referenced by decode(), Botan::ASN1_String::decode_from(), Botan::OID::decode_from(), Botan::AlternativeName::decode_from(), Botan::X509_Time::decode_from(), Botan::GeneralName::decode_from(), decode_null(), decode_optional(), decode_optional_implicit(), get_next(), and start_cons().

   {
   BER_Object next;

   if(m_pushed.is_set())
      {
      std::swap(next, m_pushed);
      return next;
      }

   for(;;)
      {
      ASN1_Tag type_tag, class_tag;
      decode_tag(m_source, type_tag, class_tag);
      next.set_tagging(type_tag, class_tag);
      if(next.is_set() == false) // no more objects
         return next;

      size_t field_size;
      const size_t length = decode_length(m_source, field_size, ALLOWED_EOC_NESTINGS);
      if(!m_source->check_available(length))
         throw BER_Decoding_Error("Value truncated");

      uint8_t* out = next.mutable_bits(length);
      if(m_source->read(out, length) != length)
         throw BER_Decoding_Error("Value truncated");

      if(next.tagging() == EOC)
         continue;
      else
         break;
      }

   return next;
   }

get_next_octet_string()

std::vector< uint8_t > Botan::BER_Decoder::get_next_octet_string

(

)

Definition at line 367 of file ber_dec.cpp.

References decode(), and Botan::OCTET_STRING.

Referenced by Botan::OCSP::Response::Response().

   {
   std::vector<uint8_t> out_vec;
   decode(out_vec, OCTET_STRING);
   return out_vec;
   }

get_next_value()

template<typename T >

BER_Decoder& Botan::BER_Decoder::get_next_value ( T &  out, ASN1_Tag  type_tag, ASN1_Tag  class_tag = CONTEXT_SPECIFIC  )

inline

Get next object and copy value to POD type Asserts value length is equal to POD type sizeof. Asserts Type tag and optional Class tag according to parameters. Copy value to POD type (struct, union, C-style array, std::array, etc.).

Parameters

out	POD type reference where to copy object value
type_tag	ASN1_Tag enum to assert type on object read
class_tag	ASN1_Tag enum to assert class on object read (default: CONTEXT_SPECIFIC)

Returns

this reference

Definition at line 48 of file ber_dec.h.

References Botan::BER_Object::assert_is_a(), Botan::BER_Object::bits(), Botan::copy_mem(), Botan::BER_Object::length(), T, and Botan::ASN1::to_string().

         {
         static_assert(std::is_pod<T>::value, "Type must be POD");

         BER_Object obj = get_next_object();
         obj.assert_is_a(type_tag, class_tag);

         if (obj.length() != sizeof(T))
            throw BER_Decoding_Error(
                    "Size mismatch. Object value size is " +
                    std::to_string(obj.length()) +
                    "; Output type size is " +
                    std::to_string(sizeof(T)));

         copy_mem(reinterpret_cast<uint8_t*>(&out), obj.bits(), obj.length());

         return (*this);
         }

more_items()

bool Botan::BER_Decoder::more_items

(

)

const

Definition at line 153 of file ber_dec.cpp.

References Botan::DataSource::end_of_data(), and Botan::BER_Object::is_set().

Referenced by Botan::PK_Verifier::check_signature(), Botan::AlternativeName::decode_from(), Botan::X509_DN::decode_from(), Botan::CRL_Entry::decode_from(), Botan::Extensions::decode_from(), decode_list(), and Botan::OCSP::Response::Response().

   {
   if(m_source->end_of_data() && !m_pushed.is_set())
      return false;
   return true;
   }

operator=()

BER_Decoder& Botan::BER_Decoder::operator= ( const BER_Decoder &  )

delete

push_back()

void Botan::BER_Decoder::push_back

(

const BER_Object &

obj

)

Definition at line 229 of file ber_dec.cpp.

References Botan::BER_Object::is_set().

Referenced by decode_list(), decode_optional(), decode_optional_implicit(), Botan::McEliece_PrivateKey::McEliece_PrivateKey(), and raw_bytes().

   {
   if(m_pushed.is_set())
      throw Invalid_State("BER_Decoder: Only one push back is allowed");
   m_pushed = obj;
   }

raw_bytes()

template<typename Alloc >

BER_Decoder& Botan::BER_Decoder::raw_bytes ( std::vector< uint8_t, Alloc > &  out )

inline

Definition at line 73 of file ber_dec.h.

References push_back().

Referenced by Botan::Attribute::decode_from(), Botan::AlgorithmIdentifier::decode_from(), Botan::X509_DN::decode_from(), Botan::X509_Object::decode_from(), and Botan::OCSP::Response::Response().

         {
         out.clear();
         uint8_t buf;
         while(m_source->read_byte(buf))
            out.push_back(buf);
         return (*this);
         }

start_cons()

BER_Decoder Botan::BER_Decoder::start_cons	(	ASN1_Tag	type_tag,
		ASN1_Tag	class_tag = UNIVERSAL
	)

Definition at line 239 of file ber_dec.cpp.

References Botan::BER_Object::assert_is_a(), Botan::BER_Object::bits(), Botan::CONSTRUCTED, get_next_object(), and Botan::BER_Object::length().

Referenced by Botan::PK_Verifier::check_signature(), Botan::Attribute::decode_from(), Botan::AlternativeName::decode_from(), Botan::AlgorithmIdentifier::decode_from(), Botan::OCSP::CertID::decode_from(), Botan::X509_DN::decode_from(), Botan::CRL_Entry::decode_from(), Botan::OCSP::SingleResponse::decode_from(), Botan::X509_Object::decode_from(), Botan::GeneralSubtree::decode_from(), Botan::Extensions::decode_from(), Botan::Cert_Extension::CRL_Distribution_Points::Distribution_Point::decode_from(), decode_list(), Botan::EC_PrivateKey::EC_PrivateKey(), Botan::X509::load_key(), Botan::McEliece_PrivateKey::McEliece_PrivateKey(), Botan::McEliece_PublicKey::McEliece_PublicKey(), Botan::pbes2_decrypt(), Botan::OCSP::Response::Response(), Botan::RSA_PrivateKey::RSA_PrivateKey(), Botan::RSA_PublicKey::RSA_PublicKey(), and Botan::TLS::Session::Session().

   {
   BER_Object obj = get_next_object();
   obj.assert_is_a(type_tag, ASN1_Tag(class_tag | CONSTRUCTED));

   BER_Decoder result(obj.bits(), obj.length());
   result.m_parent = this;
   return result;
   }

verify_end()

BER_Decoder & Botan::BER_Decoder::verify_end

(

)

Definition at line 163 of file ber_dec.cpp.

References Botan::DataSource::end_of_data(), and Botan::BER_Object::is_set().

Referenced by Botan::AlternativeName::decode_from(), Botan::Extensions::decode_from(), decode_optional_string(), and Botan::TLS::Session::Session().

   {
   if(!m_source->end_of_data() || m_pushed.is_set())
      throw Invalid_State("BER_Decoder::verify_end called, but data remains");
   return (*this);
   }

---

The documentation for this class was generated from the following files:

• src/lib/asn1/ber_dec.h
• src/lib/asn1/ber_dec.cpp