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/*
*
* image writer class for DeadDiscReader
* Copyright (C) 2007, 2010, Gennady "ShultZ" Kozlov <qpxtool@mail.ru>
*
*/
#define _FILE_OFFSET_BITS 64
#include <stdio.h>
#include <inttypes.h>
#include <unistd.h>
#include <sectmap.h>
#include "imgwriter.h"
#ifndef HAVE_FOPEN64
#define fopen64 fopen
#endif
imgwriter::imgwriter(char* fn, smap* map) {
mutex = new Mutex();
fname=fn;
#if !( defined(HAVE_FSEEKO) && defined(OFFT_64BIT) ) && !defined(HAVE_FSEEK64)
printf("Warning! No 64-bit file offset. Image size limits to 2GiB\n");
#endif
if (!(iso = fopen64(fname,"r+"))){
printf("can't open image file, creating new one!\n");
if (!(iso = fopen64(fname,"w+"))){
printf("can't create image file!\n");
}
} else {
printf("image opened: '%s'\n", fname);
map->load();
}
if (iso) fclose(iso);
}
imgwriter::~imgwriter() {
delete mutex;
}
int imgwriter::write(int lba, int scnt, int ssz, void* buff) {
int res=0;
#if defined(HAVE_FSEEKO) && defined(OFFT_64BIT)
off_t offs = ssz*(off_t)lba;
#else
int64_t offs = ssz*(int64_t)lba;
#endif
mutex->lock();
iso = fopen64(fname, "r+");
if (iso) {
#if defined(HAVE_FSEEKO) && defined(OFFT_64BIT)
if (fseeko(iso, offs, SEEK_SET))
#elif defined(HAVE_FSEEK64)
if (fseek64(iso, offs, SEEK_SET))
#else
if (fseek(iso, offs, SEEK_SET))
#endif
{
printf("\nseek() failed! Offs: %lld (%08LX)\n",
static_cast<long long>(offs),
static_cast<unsigned long long>(offs));
mutex->unlock();
return 0;
}
res = fwrite(buff, ssz, scnt, iso);
// printf("\nwrote: %ld of %ld\n", res, scnt);
fclose(iso);
}
mutex->unlock();
return res;
}
//void imgwriter::set_file(char* fn) { fname=fn; }
//int imgwriter::open(){}
//int imgwriter::close(){}
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