int read(int fd, void* buffer, unsigned int count)
{
_FD_STRUCT* fds;
DWORD numRead;
fds = fds_from_index(fd);
if (fds == NULL)
{
errno = EBADF;
return -1;
}
initStdHandlesInline();
if (fds->pipe != NULL)
{
numRead = pipeRead(fds->pipe, (unsigned char*)buffer, count);
}
else if (fds->hFile != INVALID_HANDLE_VALUE)
{
if (!ReadFile(fds->hFile, buffer, count, &numRead, NULL))
{
if (GetLastError() == ERROR_HANDLE_EOF)
fds->eof = TRUE;
// else
// fds->error = TRUE;
return 0;
}
}
else
return 0;
return (int)numRead;
}
// returns non-zero if data is available on stdin
int _kbhit(void)
{
if (!valid_fd(STDIN))
{
if (!initStdHandlesInline())
return 0;
if (!valid_fd(STDIN))
return 0;
}
if (fd_stdin->pipe != NULL)
{
return pipeReadable(fd_stdin->pipe) ? 1 : 0;
}
else
return 0;
}
int write(int fd, const void* buffer, unsigned int count)
{
_FD_STRUCT* fds;
DWORD numWritten;
fds = fds_from_index(fd);
if (fds == NULL)
{
errno = EBADF;
return -1;
}
initStdHandlesInline();
if (fds->pipe != NULL)
{
if (fds->pipeChannel != -1)
{ // write header (for distinguishing stdout from stderr)
unsigned long length = count;
unsigned char header[5];
header[0] = fds->pipeChannel;
memcpy(&header[1], &length, sizeof(length));
/*int x = */
pipeWrite(fds->pipe, header, sizeof(header));
}
/*int x =*/
pipeWrite(fds->pipe, (unsigned char*)buffer, count);
numWritten = count;
}
else if (fds->hFile != INVALID_HANDLE_VALUE)
{
if (!WriteFile(fds->hFile, buffer, count, &numWritten, NULL))
{
// fds->error = TRUE;
return 0;
}
}
else
return 0;
return (int)numWritten;
}
