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/*
* writer.h
*
* This file is a part of NSIS.
*
* Copyright (C) 1999-2025 Nullsoft and Contributors
*
* Licensed under the zlib/libpng license (the "License");
* you may not use this file except in compliance with the License.
*
* Licence details can be found in the file COPYING.
*
* This software is provided 'as-is', without any express or implied
* warranty.
*
* Unicode support by Jim Park -- 08/13/2007
*/
#ifndef ___WRITER__H___
#define ___WRITER__H___
#include "exehead/config.h"
#include "growbuf.h"
#include "crc32.h"
#include <stdio.h>
#include "tchar.h"
class writer_target_info {
public:
writer_target_info(bool Unicode = 0, bool Cpu64 = 0) { m_f = (Unicode ? F_U : 0) | (Cpu64 ? F_64 : 0); }
bool is_unicode() const { return !!(m_f & F_U); }
bool is_64bit() const { return !!(m_f & F_64); }
protected:
enum { F_U = 0x01, F_64 = 0x80 };
BYTE m_f;
};
class writer_sink {
public:
writer_sink(const writer_target_info&ti) : m_ti(ti) {}
virtual ~writer_sink() {}
virtual void write_byte(const unsigned char b);
virtual void write_short(const short s);
virtual void write_int(const int i);
virtual void write_int64(const INT64 i);
virtual void write_int_array(const int i[], const size_t len);
virtual void write_string(const TCHAR *s, size_t size);
virtual void write_growbuf(const IGrowBuf *b);
virtual void write_data(const void *data, const size_t size) = 0;
virtual const writer_target_info& get_target_info() const { return m_ti; }
protected:
writer_target_info m_ti;
};
class writer {
public:
writer(writer_sink *sink) : m_sink(sink) {}
virtual ~writer() {}
protected:
writer_sink *m_sink;
};
class growbuf_writer_sink : public writer_sink {
public:
typedef IGrowBuf sink_type;
growbuf_writer_sink(sink_type *buf, const writer_target_info&ti) : writer_sink(ti), m_buf(buf) { }
virtual void write_data(const void *data, const size_t size);
private:
sink_type *m_buf;
};
class file_writer_sink : public writer_sink {
public:
file_writer_sink(FILE *fp, const writer_target_info&ti) : writer_sink(ti), m_fp(fp) {}
virtual void write_data(const void *data, const size_t size);
private:
FILE *m_fp;
};
#ifdef NSIS_CONFIG_CRC_SUPPORT
class crc_writer_sink : public writer_sink {
public:
crc_writer_sink(crc32_t *crc) : writer_sink(writer_target_info()), m_crc(crc) {}
virtual void write_data(const void *data, const size_t size);
private:
crc32_t *m_crc;
};
#endif
#endif//!___WRITER__H___
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