int __qread( int handle, void *buffer, unsigned len ) { #if defined( __NT__ ) DWORD amount_read; #elif defined(__OS2__) OS_UINT amount_read; APIRET rc; #else unsigned amount_read; tiny_ret_t rc; #endif __handle_check( handle, -1 ); #ifdef DEFAULT_WINDOWING if( _WindowsStdin != NULL ) { LPWDATA res; res = _WindowsIsWindowedHandle( handle ); if( res ) { int rt; rt = _WindowsStdin( res, buffer, len ); return( rt ); } } #endif #if defined(__NT__) if( !ReadFile( __getOSHandle( handle ), buffer, len, &amount_read, NULL ) ) { DWORD err; err = GetLastError(); __set_errno_dos( err ); if( err != ERROR_BROKEN_PIPE || amount_read != 0 ) { return( -1 ); } } #elif defined(__OS2__) rc = DosRead( handle, buffer, len, &amount_read ); if( rc ) { return( __set_errno_dos( rc ) ); } #else #if defined( __WINDOWS_386__ ) rc = __TinyRead( handle, buffer, len ); #else rc = TinyRead( handle, buffer, len ); #endif if( TINY_ERROR( rc ) ) { return( __set_errno_dos( TINY_INFO( rc ) ) ); } amount_read = TINY_LINFO( rc ); #endif return( amount_read ); }
_WCRTLINK int read( int handle, void *buf, unsigned len ) #endif { unsigned read_len, total_len; unsigned reduce_idx, finish_idx; unsigned iomode_flags; char *buffer = buf; #if defined(__NT__) DWORD amount_read; BOOL rc; HANDLE h; #elif defined(__WARP__) ULONG amount_read; #elif defined(__OS2_286__) USHORT amount_read; #else unsigned amount_read; #endif #if !defined(__NT__) tiny_ret_t rc; #endif #ifdef DEFAULT_WINDOWING LPWDATA res; #endif __handle_check( handle, -1 ); __ChkTTYIOMode( handle ); iomode_flags = __GetIOMode( handle ); if( iomode_flags == 0 ) { #if defined( __WINDOWS__ ) || defined( __WINDOWS_386__ ) return( _lread( handle, buffer, len ) ); #else _RWD_errno = EBADF; return( -1 ); #endif } if( !(iomode_flags & _READ) ) { _RWD_errno = EACCES; /* changed from EBADF to EACCES 23-feb-89 */ return( -1 ); } #ifdef __NT__ h = __getOSHandle( handle ); #endif if( iomode_flags & _BINARY ) { /* if binary mode */ #ifdef DEFAULT_WINDOWING if( _WindowsStdin != 0 && (res = _WindowsIsWindowedHandle( handle )) != 0 ) { total_len = _WindowsStdin( res, buffer, len ); rc = 0; } else #endif { #if defined(__NT__) rc = ReadFile( h, buffer, len, &amount_read, NULL ); total_len = amount_read; if( !rc ) { if (GetLastError() == ERROR_BROKEN_PIPE) return total_len; return( __set_errno_nt() ); } #elif defined( __OS2__ ) rc = DosRead( handle, buffer, len, &amount_read ); total_len = amount_read; #else rc = TinyRead( handle, buffer, len ); total_len = TINY_LINFO( rc ); #endif } #if !defined(__NT__) if( TINY_ERROR( rc ) ) { return( __set_errno_dos( TINY_INFO( rc ) ) ); } #endif } else { _AccessFileH( handle ); total_len = 0; read_len = len; do { #ifdef DEFAULT_WINDOWING if( _WindowsStdin != 0 && (res = _WindowsIsWindowedHandle( handle )) != 0L ) { amount_read = _WindowsStdin( res, buffer, read_len ); rc = 0; } else #endif { #if defined(__NT__) rc = ReadFile( h, buffer, read_len, &amount_read, NULL ); if( !rc ) { _ReleaseFileH( handle ); if( GetLastError() == ERROR_BROKEN_PIPE ) return total_len; return( __set_errno_nt() ); } #elif defined( __OS2__ ) rc = DosRead( handle, buffer, read_len, &amount_read ); #else rc = TinyRead( handle, buffer, read_len ); amount_read = TINY_LINFO( rc ); #endif } #if !defined(__NT__) if( TINY_ERROR( rc ) ) { _ReleaseFileH( handle ); return( __set_errno_dos( TINY_INFO( rc ) ) ); } #endif if( amount_read == 0 ) { /* EOF */ break; } reduce_idx = 0; finish_idx = reduce_idx; for( ; reduce_idx < amount_read; ++reduce_idx ) { if( buffer[ reduce_idx ] == 0x1a ) { /* EOF */ __lseek( handle, ((long)reduce_idx - (long)amount_read)+1L, SEEK_CUR ); total_len += finish_idx; _ReleaseFileH( handle ); return( total_len ); } if( buffer[ reduce_idx ] != '\r' ) { buffer[ finish_idx++ ] = buffer[ reduce_idx ]; } } total_len += finish_idx; buffer += finish_idx; read_len -= finish_idx; if( iomode_flags & _ISTTY ) { break; /* 04-feb-88, FWC */ } } while( read_len != 0 ); _ReleaseFileH( handle ); } return( total_len ); }