size_t IconvWrapper::Convert(const char* source, size_t sourceSize, char *dest, size_t destSize) {
if (sourceSize == (size_t)-1)
sourceSize = SrcStrLen(source);
size_t res = conv->Convert(&source, &sourceSize, &dest, &destSize);
if (res == 0) res = conv->Convert(nullptr, nullptr, &dest, &destSize);
if (res == iconv_failed) {
switch (errno) {
case E2BIG:
throw BufferTooSmall(
"Destination buffer was not large enough to fit converted "
"string.");
case EINVAL:
throw BadInput(
"One or more characters in the input string were not valid "
"characters in the given input encoding");
case EILSEQ:
throw BadOutput(
"One or more characters could not be converted to the "
"selected target encoding and the version of iconv "
"Aegisub was built with does not have useful fallbacks. "
"For best results, please build Aegisub using a recent "
"version of GNU iconv.");
default:
throw ConversionFailure("An unknown conversion failure occurred");
}
}
return res;
}
//! Read the contents of the MT SBD message buffer.
//! @param[in] data buffer to hold binary data.
//! @param[in] data_size size of binary data buffer.
//! @return number of bytes read.
unsigned
readBufferMT(uint8_t* data, unsigned data_size)
{
ReadMode saved_read_mode = getReadMode();
Counter<double> timer(getTimeout());
uint8_t bfr[2] = {0};
uint8_t ccsum[2] = {0};
unsigned length = 0;
try
{
// Prepare to read raw data.
setReadMode(READ_MODE_RAW);
// Send command.
sendAT("+SBDRB");
// Read incoming data length.
length = getBufferSizeMT(timer);
getTask()->spew("reading %u bytes of SBD binary data", length);
// Read data.
if (length > data_size)
throw BufferTooSmall(data_size, length);
if (length > 0)
{
readRaw(timer, data, length);
computeChecksum(data, length, ccsum);
}
// Read and validate.
readRaw(timer, bfr, 2);
if ((bfr[0] != ccsum[0]) || (bfr[1] != ccsum[1]))
throw Hardware::InvalidChecksum(bfr, ccsum);
setReadMode(saved_read_mode);
expectOK();
}
catch (...)
{
setReadMode(saved_read_mode);
throw;
}
return length;
}
size_t IconvWrapper::Convert(const char* source, size_t sourceSize, char *dest, size_t destSize) {
if (sourceSize == (size_t)-1)
sourceSize = SrcStrLen(source);
size_t res = conv->Convert(&source, &sourceSize, &dest, &destSize);
if (res == 0) res = conv->Convert(nullptr, nullptr, &dest, &destSize);
if (res == iconv_failed) {
switch (errno) {
case E2BIG:
throw BufferTooSmall(
"Destination buffer was not large enough to fit converted "
"string.");
case EINVAL:
case EILSEQ:
throw BadInput(
"One or more characters in the input string were not valid "
"characters in the given input encoding");
default:
throw ConversionFailure("An unknown conversion failure occurred");
}
}
return res;
}
