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/***************************************************************************
* fqterm, a terminal emulator for both BBS and *nix. *
* Copyright (C) 2008 fqterm development group. *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
#ifndef FQTERM_SSH_BUFFER_H
#define FQTERM_SSH_BUFFER_H
#include <openssl/bn.h>
#include <string.h>
#include "fqterm_ssh_types.h"
namespace FQTerm {
#define SSH_BUFFER_MAX 10000000
class FQTermSSHBuffer {
private:
u_char *buffer_;
int offset_;
int buffer_size_;
int alloc_size_;
void ensure(int len);
void rebuffer();
public:
FQTermSSHBuffer(int size);
~FQTermSSHBuffer();
u_char *data() const {
return buffer_ + offset_;
}
int len() const {
return buffer_size_;
}
void consume(int len);
void clear();
void putRawData(const char *data, int len);
void getRawData(char *data, int len);
void putSSH1BN(BIGNUM *bignum);
void getSSH1BN(BIGNUM *bignum);
void putSSH2BN(BIGNUM *bignum);
void getSSH2BN(BIGNUM *bignum);
void putInt(u_int data);
u_int getInt();
void putWord(u_short data);
u_short getWord();
void putByte(int data);
u_char getByte();
void putString(const char *str, int len = -1);
void *getString(int *length = NULL);
};
} // namespace FQTerm
#endif //FQTERM_SSH_BUFFER
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