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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [stdio/] [stdio.c] - Blame information for rev 207

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Line No. Rev Author Line
1 207 jeremybenn
/*
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 * Copyright (c) 1990 The Regents of the University of California.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms are permitted
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 * provided that the above copyright notice and this paragraph are
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 * duplicated in all such forms and that any documentation,
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 * advertising materials, and other materials related to such
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 * distribution and use acknowledge that the software was developed
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 * by the University of California, Berkeley.  The name of the
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 * University may not be used to endorse or promote products derived
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 * from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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 */
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/* No user fns here.  Pesch 15apr92. */
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#include <_ansi.h>
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#include <reent.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <sys/unistd.h>
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#include "local.h"
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/*
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 * Small standard I/O/seek/close functions.
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 * These maintain the `known seek offset' for seek optimisation.
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 */
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_READ_WRITE_RETURN_TYPE
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_DEFUN(__sread, (ptr, cookie, buf, n),
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       struct _reent *ptr _AND
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       void *cookie _AND
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       char *buf _AND
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       int n)
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{
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  register FILE *fp = (FILE *) cookie;
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  register int ret;
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#ifdef __SCLE
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  int oldmode = 0;
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  if (fp->_flags & __SCLE)
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    oldmode = setmode (fp->_file, O_BINARY);
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#endif
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  ret = _read_r (ptr, fp->_file, buf, n);
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#ifdef __SCLE
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  if (oldmode)
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    setmode (fp->_file, oldmode);
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#endif
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  /* If the read succeeded, update the current offset.  */
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  if (ret >= 0)
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    fp->_offset += ret;
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  else
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    fp->_flags &= ~__SOFF;      /* paranoia */
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  return ret;
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}
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/* Dummy function used in sscanf/swscanf. */
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_READ_WRITE_RETURN_TYPE
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_DEFUN(__seofread, (ptr, cookie, buf, len),
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       struct _reent *_ptr _AND
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       _PTR cookie _AND
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       char *buf   _AND
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       int len)
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{
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  return 0;
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}
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_READ_WRITE_RETURN_TYPE
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_DEFUN(__swrite, (ptr, cookie, buf, n),
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       struct _reent *ptr _AND
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       void *cookie _AND
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       char const *buf _AND
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       int n)
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{
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  register FILE *fp = (FILE *) cookie;
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  int w;
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#ifdef __SCLE
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  int oldmode=0;
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#endif
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  if (fp->_flags & __SAPP)
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    _lseek_r (ptr, fp->_file, (_off_t) 0, SEEK_END);
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  fp->_flags &= ~__SOFF;        /* in case O_APPEND mode is set */
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#ifdef __SCLE
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  if (fp->_flags & __SCLE)
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    oldmode = setmode (fp->_file, O_BINARY);
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#endif
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  w = _write_r (ptr, fp->_file, buf, n);
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#ifdef __SCLE
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  if (oldmode)
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    setmode (fp->_file, oldmode);
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#endif
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  return w;
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}
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_fpos_t
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_DEFUN(__sseek, (ptr, cookie, offset, whence),
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       struct _reent *ptr _AND
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       void *cookie _AND
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       _fpos_t offset _AND
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       int whence)
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{
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  register FILE *fp = (FILE *) cookie;
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  register _off_t ret;
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  ret = _lseek_r (ptr, fp->_file, (_off_t) offset, whence);
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  if (ret == -1L)
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    fp->_flags &= ~__SOFF;
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  else
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    {
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      fp->_flags |= __SOFF;
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      fp->_offset = ret;
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    }
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  return ret;
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}
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int
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_DEFUN(__sclose, (ptr, cookie),
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       struct _reent *ptr _AND
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       void *cookie)
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{
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  FILE *fp = (FILE *) cookie;
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  return _close_r (ptr, fp->_file);
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}
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#ifdef __SCLE
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int
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_DEFUN(__stextmode, (fd),
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       int fd)
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{
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#ifdef __CYGWIN__
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  extern int _cygwin_istext_for_stdio (int);
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  return _cygwin_istext_for_stdio (fd);
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#else
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  return 0;
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#endif
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}
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#endif

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