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/*
* ASN.1 OID
* (C) 1999-2007 Jack Lloyd
*
* Botan is released under the Simplified BSD License (see license.txt)
*/
#ifndef BOTAN_ASN1_OID_H_
#define BOTAN_ASN1_OID_H_
#include <botan/asn1_obj.h>
#include <string>
#include <vector>
namespace Botan {
/**
* This class represents ASN.1 object identifiers.
*/
class BOTAN_PUBLIC_API(2,0) OID final : public ASN1_Object
{
public:
void encode_into(class DER_Encoder&) const override;
void decode_from(class BER_Decoder&) override;
/**
* Find out whether this OID is empty
* @return true is no OID value is set
*/
bool empty() const { return m_id.empty(); }
/**
* Find out whether this OID has a value
* @return true is this OID has a value
*/
bool has_value() const { return (m_id.empty() == false); }
/**
* Get this OID as list (vector) of its components.
* @return vector representing this OID
*/
const std::vector<uint32_t>& get_id() const { return m_id; }
/**
* Get this OID as a string
* @return string representing this OID
*/
std::string BOTAN_DEPRECATED("Use OID::to_string") as_string() const
{
return this->to_string();
}
/**
* Get this OID as a string
* @return string representing this OID
*/
std::string to_string() const;
/**
* Compare two OIDs.
* @return true if they are equal, false otherwise
*/
bool operator==(const OID&) const;
/**
* Reset this instance to an empty OID.
*/
void clear();
/**
* Add a component to this OID.
* @param new_comp the new component to add to the end of this OID
* @return reference to *this
*/
OID& operator+=(uint32_t new_comp);
/**
* Construct an OID from a string.
* @param str a string in the form "a.b.c" etc., where a,b,c are numbers
*/
explicit OID(const std::string& str = "");
explicit OID(std::initializer_list<uint32_t> init) : m_id(init) {}
private:
std::vector<uint32_t> m_id;
};
/**
* Append another component onto the OID.
* @param oid the OID to add the new component to
* @param new_comp the new component to add
*/
OID BOTAN_PUBLIC_API(2,0) operator+(const OID& oid, uint32_t new_comp);
/**
* Compare two OIDs.
* @param a the first OID
* @param b the second OID
* @return true if a is not equal to b
*/
bool BOTAN_PUBLIC_API(2,0) operator!=(const OID& a, const OID& b);
/**
* Compare two OIDs.
* @param a the first OID
* @param b the second OID
* @return true if a is lexicographically smaller than b
*/
bool BOTAN_PUBLIC_API(2,0) operator<(const OID& a, const OID& b);
}
#endif
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