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#ifndef __OPKELE_UTIL_H
#define __OPKELE_UTIL_H
#include <time.h>
#include <string>
#include <openssl/bn.h>
#include <openssl/dh.h>
namespace opkele {
using std::string;
namespace util {
class bignum_t {
public:
BIGNUM *_bn;
bignum_t() : _bn(0) { }
bignum_t(BIGNUM *bn) : _bn(bn) { }
~bignum_t() throw() { if(_bn) BN_free(_bn); }
bignum_t& operator=(BIGNUM *bn) { if(_bn) BN_free(_bn); _bn = bn; return *this; }
operator const BIGNUM*(void) const { return _bn; }
operator BIGNUM*(void) { return _bn; }
};
class dh_t {
public:
DH *_dh;
dh_t() : _dh(0) { }
dh_t(DH *dh) : _dh(dh) { }
~dh_t() throw() { if(_dh) DH_free(_dh); }
dh_t& operator=(DH *dh) { if(_dh) DH_free(_dh); _dh = dh; return *this; }
operator const DH*(void) const { return _dh; }
operator DH*(void) { return _dh; }
DH* operator->() { return _dh; }
const DH* operator->() const { return _dh; }
};
BIGNUM *base64_to_bignum(const string& b64);
BIGNUM *dec_to_bignum(const string& dec);
string bignum_to_base64(const BIGNUM *bn);
string time_to_w3c(time_t t);
time_t w3c_to_time(const string& w);
string url_encode(const string& str);
string long_to_string(long l);
long string_to_long(const string& s);
}
}
#endif /* __OPKELE_UTIL_H */
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