bool FileHandler::setStreamBuffer(bool checkExists)
{
// redirect stdin or stdout if necesary
if (path_ == FileHandler::kStdInDescriptor) {
CHECK(flags_ & std::ios::in);
std::streambuf* sb = std::cin.rdbuf();
buffer_ = sb;
} else if (path_ == FileHandler::kStdOutDescriptor) {
CHECK(flags_ & std::ios::out);
std::streambuf* sb = std::cout.rdbuf();
buffer_ = sb;
} else {
// real file
if( checkExists && ! fileExists() ) {
fprintf(stderr, "ERROR: Failed to find file at %s\n", path_.c_str());
exit(EXIT_FAILURE);
}
std::string cmd = "";
if( isCompressedFile(cmd) && (! cmd.empty()) ) {
buffer_ = openCompressedFile(cmd.c_str());
} else {
// open underlying filebuf
std::filebuf* fb = new std::filebuf();
fb->open(path_.c_str(), flags_);
buffer_ = fb;
}
}
if (!buffer_) {
fprintf(stderr, "ERROR:Failed to open file at %s\n", path_.c_str());
exit(EXIT_FAILURE);
}
this->init(buffer_);
return true;
}
int ShellUnpacker::unpackAll()
{
int fileno = 0;
int unpackcond = 0; //Condizione di decompressoine
unsigned int cicleno = 0;
freeCompressedFile();
fileno = openCompressedFile();
if(fileno < 0)
return fileno;
while(unpackcond == 0)
{
unpackcond = this->unpackFile();
cicleno++;
if(_unpackStubb)
_unpackStubb->progressUnpackStubb(cicleno, fileno);
if(_stopunpack)
{
unpackcond = -8; //STOP condition
break;
}
}
return unpackcond;
}
bool FileHandler::reset()
{
// move to beginning of file
if (fp_ != 0) {
//can't seek on a pipe so reopen
pclose(fp_);
std::string cmd = "";
if (isCompressedFile(cmd) && ! cmd.empty())
buffer_ = openCompressedFile(cmd.c_str());
//reinitialize
this->init(buffer_);
} else
buffer_->pubseekoff(0, std::ios_base::beg); //sets both get and put pointers to beginning of stream
return true;
}
