fdstream.h

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#ifndef __fdstream_h__
#define __fdstream_h__

#include <iostream>
#ifdef HAVE_STREAMBUF
#include <streambuf>
#endif
#include <cstdio>

#include <string.h>

class fdoutbuf : public std::streambuf
{
public:
        fdoutbuf();
        fdoutbuf(int a_fd);
        void attach(int a_fd);
        virtual int overflow(int a_c);
        virtual std::streamsize xsputn(const char* a_s, std::streamsize a_num);

protected:
        int m_fd;
};

class ofdstream : public std::ostream
{
public:
        ofdstream();
        ofdstream(int a_fd);
        void attach(int a_fd);
        int fd(void);

protected:
        fdoutbuf m_buf;
        int m_fd;
};

class fdinbuf : public std::streambuf
{
public:
        fdinbuf();
        fdinbuf(int a_fd);
        void attach(int a_fd);
        virtual int underflow(void);

protected:
        int m_fd;
        static const int m_buffer_size = 10;
        char m_buffer[m_buffer_size];
};

class ifdstream : public std::istream
{
public:
        ifdstream();
        ifdstream(int a_fd);
        void attach(int a_fd);
        int fd(void);

protected:
        fdinbuf m_buf;
        int m_fd;
};

#endif