void close()
{
if (header_.is_directory())
return;
if (pos_ != header_.compressed_size)
throw BOOST_IOSTREAMS_FAILURE("LZH entry size mismatch");
if (!header_.crc16_checksum)
throw BOOST_IOSTREAMS_FAILURE("LZH CRC is not set");
pos_ = 0;
}
inline BOOST_IOSTREAMS_FAILURE system_failure(const char* msg)
{
std::string result;
#ifdef BOOST_IOSTREAMS_WINDOWS
DWORD err;
LPVOID lpMsgBuf;
if ( (err = ::GetLastError()) != NO_ERROR &&
::FormatMessageA( FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
err,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
(LPSTR) &lpMsgBuf,
0,
NULL ) != 0 )
{
result.reserve(std::strlen(msg) + 2 + std::strlen((LPSTR)lpMsgBuf));
result.append(msg);
result.append(": ");
result.append((LPSTR) lpMsgBuf);
::LocalFree(lpMsgBuf);
} else {
result += msg;
}
#else
const char* system_msg = errno ? strerror(errno) : "";
result.reserve(std::strlen(msg) + 2 + std::strlen(system_msg));
result.append(msg);
result.append(": ");
result.append(system_msg);
#endif
return BOOST_IOSTREAMS_FAILURE(result);
}
std::streamsize write(const char* s, std::streamsize n)
{
int error;
if (::pa_simple_write(handle_, s, n, &error) < 0)
throw BOOST_IOSTREAMS_FAILURE("pa_simple_write() failed");
return n;
}
void file_descriptor::close_impl(impl& i)
{
#ifdef BOOST_IOSTREAMS_WINDOWS
if (i.flags_ & impl::has_handle) {
if (!::CloseHandle(i.handle_))
throw BOOST_IOSTREAMS_FAILURE("bad close");
i.fd_ = -1;
i.flags_ = 0;
return;
}
#endif
if (i.fd_ != -1) {
if (BOOST_RTL(close)(i.fd_) == -1)
throw BOOST_IOSTREAMS_FAILURE("bad close");
i.fd_ = -1;
i.flags_ = 0;
}
}
void skip(Filter& flt, Device& dev, stream_offset off, mpl::false_)
{
typedef typename char_type_of<Device>::type char_type;
char_type c;
for (stream_offset z = 0; z < off; ) {
std::streamsize amt;
if ((amt = iostreams::read(flt, dev, &c, 1)) == -1)
throw BOOST_IOSTREAMS_FAILURE("bad skip offset");
if (amt == 1)
++z;
}
}
void skip(Device& dev, stream_offset off, mpl::false_)
{ // gcc 2.95 needs namespace qualification for char_traits.
typedef typename char_type_of<Device>::type char_type;
typedef iostreams::char_traits<char_type> traits_type;
for (stream_offset z = 0; z < off; ) {
typename traits_type::int_type c;
if (traits_type::is_eof(c = iostreams::get(dev)))
throw BOOST_IOSTREAMS_FAILURE("bad skip offset");
if (!traits_type::would_block(c))
++z;
}
}
std::streamsize read(char* s, std::streamsize n)
{
std::streamsize amt = raw_.read(s, n);
if (head_.format == cpio::svr4_chksum)
{
if (amt == n)
sum16_.process_bytes(s, amt);
else if (sum16_.checksum() != *head_.checksum)
throw BOOST_IOSTREAMS_FAILURE("cpio checksum missmatch");
}
return amt;
}
cpio::header read_header()
{
cpio::header head;
std::size_t name_size = 0;
char magic[6];
iostreams::blocking_read(src_, magic);
if (std::memcmp(magic, "070707", sizeof(magic)) == 0)
{
char buf[hamigaki::struct_size<cpio::raw_header>::value];
std::memcpy(buf, magic, sizeof(magic));
iostreams::blocking_read(
src_, buf+sizeof(magic), sizeof(buf)-sizeof(magic));
cpio::raw_header raw;
hamigaki::binary_read(buf, raw);
name_size = read_cpio_header(head, raw);
}
else if (
(std::memcmp(magic, "070701", sizeof(magic)) == 0) ||
(std::memcmp(magic, "070702", sizeof(magic)) == 0) )
{
char buf[hamigaki::struct_size<cpio::svr4_header>::value];
std::memcpy(buf, magic, sizeof(magic));
iostreams::blocking_read(
src_, buf+sizeof(magic), sizeof(buf)-sizeof(magic));
cpio::svr4_header raw;
hamigaki::binary_read(buf, raw);
name_size = read_cpio_header(head, raw);
}
else if (hamigaki::decode_int<native,2>(magic) == 070707)
{
char buf[hamigaki::struct_size<cpio::binary_header>::value];
std::memcpy(buf, magic, sizeof(magic));
iostreams::blocking_read(
src_, buf+sizeof(magic), sizeof(buf)-sizeof(magic));
cpio::binary_header bin;
hamigaki::binary_read(buf, bin);
name_size = read_cpio_header(head, bin);
}
else
throw BOOST_IOSTREAMS_FAILURE("unknown cpio header format");
boost::scoped_array<char> buf(new char[name_size]);
iostreams::blocking_read(src_, buf.get(), name_size);
head.path = buf.get();
return head;
}
impl(const char* app, const char* name, const pcm_format& fmt) : fmt_(fmt)
{
pa_sample_spec ss = {};
ss.format = type_to_format(fmt.type);
ss.rate = fmt.rate;
ss.channels = fmt.channels;
int error;
handle_ = ::pa_simple_new(
0, app, PA_STREAM_PLAYBACK, 0, name, &ss, 0, 0, &error);
if (handle_ == 0)
throw BOOST_IOSTREAMS_FAILURE("pa_simple_new() failed");
}
void skip_impl(
Device& dev, boost::iostreams::stream_offset off, boost::mpl::false_)
{
char buf[256];
while (off > 0)
{
std::streamsize size = static_cast<std::streamsize>(sizeof(buf));
size = auto_min(size, off);
std::streamsize amt = boost::iostreams::read(dev, buf, size);
if (amt == -1)
throw BOOST_IOSTREAMS_FAILURE("bad skip offset");
off -= amt;
}
}
void open(const Device& dev, int buffer_size)
{
if (flags_ & f_open)
throw BOOST_IOSTREAMS_FAILURE("already open");
if (buffer_size == -1)
buffer_size = default_filter_buffer_size;
int max_length = cvt_.get().max_length();
buffer_size = (std::max)(buffer_size, 2 * max_length);
if (can_read::value) {
buf_.first().resize(buffer_size);
buf_.first().set(0, 0);
}
if (can_write::value && !is_double::value) {
buf_.second().resize(buffer_size);
buf_.second().set(0, 0);
}
dev_.reset(concept_adapter<policy_type>(dev));
flags_ |= f_open;
}
void CompressionType::push(io::filtering_stream<io::input>& fs) const
{
switch (m_Type) {
case NONE:
break;
#ifdef HAVE_LIBZ
case ZLIB:
fs.push(io::zlib_decompressor(io::zlib_params(9, io::zlib::deflated, 15, 8, io::zlib::default_strategy, true)));
break;
#endif
#ifdef HAVE_LIBBZ2
case BZIP2:
fs.push(io::bzip2_decompressor());
break;
#endif
case XOR:
fs.push(io::xor_filter('2'));
break;
#ifdef HAVE_LIBLZO2
case LZO:
fs.push(io::lzo_decompressor());
break;
#endif
#ifdef HAVE_LIBLZMA
case LZMA:
fs.push(io::lzma_decompressor());
break;
#endif
default:
{
// If input file is using unsopported version
// throw an exception and FuseCompress will
// process such file as uncompressed.
throw BOOST_IOSTREAMS_FAILURE("unsupported compression type");
break;
}
}
}
static std::streampos
seek(T&, stream_offset, BOOST_IOS::seekdir, BOOST_IOS::openmode)
{
throw BOOST_IOSTREAMS_FAILURE("cannot seek");
BOOST_UNREACHABLE_RETURN(std::streampos(std::streamoff(-1)))
}
void close()
{
int error;
if (::pa_simple_drain(handle_, &error) < 0)
throw BOOST_IOSTREAMS_FAILURE("pa_simple_write() failed");
}
inline BOOST_IOSTREAMS_FAILURE bad_seek()
{ return BOOST_IOSTREAMS_FAILURE("bad seek"); }
inline BOOST_IOSTREAMS_FAILURE write_area_exhausted()
{ return BOOST_IOSTREAMS_FAILURE("write area exhausted"); }
inline BOOST_IOSTREAMS_FAILURE bad_write()
{ return BOOST_IOSTREAMS_FAILURE("bad write"); }
inline BOOST_IOSTREAMS_FAILURE bad_putback()
{ return BOOST_IOSTREAMS_FAILURE("putback buffer full"); }
inline BOOST_IOSTREAMS_FAILURE bad_read()
{ return BOOST_IOSTREAMS_FAILURE("bad read"); }
inline BOOST_IOSTREAMS_FAILURE cant_seek()
{ return BOOST_IOSTREAMS_FAILURE("no random access"); }
inline BOOST_IOSTREAMS_FAILURE cant_write()
{ return BOOST_IOSTREAMS_FAILURE("no write access"); }
inline BOOST_IOSTREAMS_FAILURE cant_read()
{ return BOOST_IOSTREAMS_FAILURE("no read access"); }
bool filter(const char_type*& src_begin, const char_type* src_end,
char_type*& dest_begin, char_type* dest_end,
bool flush)
{
if (! ucnv_from && ! ucnv_to) {
// no converter... simply copy!
const size_t copy_size = std::min(src_end - src_begin, dest_end - dest_begin);
std::copy(src_begin, src_begin + copy_size, dest_begin);
src_begin += copy_size;
dest_begin += copy_size;
return false;
}
UChar* pivot_end = pivot_start + boost::iostreams::default_device_buffer_size;
UErrorCode status = U_ZERO_ERROR;
if (pivot_target != pivot_end) {
const char_type* src_begin_prev = src_begin;
UChar* pivot_target_prev = pivot_target;
status = U_ZERO_ERROR;
ucnv_toUnicode(ucnv_from, &pivot_target, pivot_end, &src_begin, src_end, 0, flush, &status);
offset_from += src_begin - src_begin_prev;
offset_pivot_target += pivot_target - pivot_target_prev;
if (status != U_BUFFER_OVERFLOW_ERROR && U_FAILURE(status)) {
UErrorCode status_getname = U_ZERO_ERROR;
const char* encoding = ucnv_getName(ucnv_from, &status_getname);
std::ostringstream offset_stream;
offset_stream << offset_from;
std::ostringstream offset_stream_unicode;
offset_stream_unicode << offset_pivot_target;
message_from = (std::string("ucnv_toUnicode(): ") + u_errorName(status)
+ " from " + encoding
+ " offset: " + offset_stream.str()
+ " unicode offset: " + offset_stream_unicode.str());
throw BOOST_IOSTREAMS_FAILURE(message_from);
}
}
char_type* dest_begin_prev = dest_begin;
const UChar* pivot_source_prev = pivot_source;
status = U_ZERO_ERROR;
ucnv_fromUnicode(ucnv_to, &dest_begin, dest_end, &pivot_source, pivot_target, 0, flush, &status);
offset_to += dest_begin - dest_begin_prev;
offset_pivot_source += pivot_source - pivot_source_prev;
if (status != U_BUFFER_OVERFLOW_ERROR && U_FAILURE(status)) {
UErrorCode status_getname = U_ZERO_ERROR;
const char* encoding = ucnv_getName(ucnv_to, &status_getname);
std::ostringstream offset_stream;
offset_stream << offset_to;
std::ostringstream offset_stream_unicode;
offset_stream_unicode << offset_pivot_source;
message_to = (std::string("ucnv_fromUnicode(): ") + u_errorName(status)
+ " to " + encoding
+ " offset: " + offset_stream.str()
+ " unicode offset: " + offset_stream_unicode.str());
throw BOOST_IOSTREAMS_FAILURE(message_to);
}
if (pivot_source == pivot_target) {
pivot_source = pivot_start;
pivot_target = pivot_start;
}
return status == U_BUFFER_OVERFLOW_ERROR;
}
