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- /*
- Copyright (C) 1993 Free Software Foundation
-
- This file is part of the GNU IO Library. This library is free
- software; you can redistribute it and/or modify it under the
- terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU CC; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- As a special exception, if you link this library with files
- compiled with a GNU compiler to produce an executable, this does not cause
- the resulting executable to be covered by the GNU General Public License.
- This exception does not however invalidate any other reasons why
- the executable file might be covered by the GNU General Public License. */
-
- #include "libioP.h"
-
- #define _IOFBF 0 /* Fully buffered. */
- #define _IOLBF 1 /* Line buffered. */
- #define _IONBF 2 /* No buffering. */
-
- int
- _IO_setvbuf(fp, buf, mode, size)
- _IO_FILE* fp;
- char* buf;
- int mode;
- _IO_size_t size;
- {
- COERCE_FILE(fp);
- switch (mode)
- {
- case _IOFBF:
- fp->_IO_file_flags &= ~_IO_LINE_BUF;
- if (buf == NULL)
- return 0;
- return fp->_jumps->__setbuf(fp, buf, size);
- case _IOLBF:
- fp->_IO_file_flags |= _IO_LINE_BUF;
- if (buf == NULL)
- return 0;
- return fp->_jumps->__setbuf(fp, buf, size);
- case _IONBF:
- return fp->_jumps->__setbuf(fp, NULL, 0);
- default:
- return EOF;
- }
- }
-