1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/genericopenlibs/cstdlib/LSTDIO/STDIO.C	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,89 @@
     1.4 +/* STDIO.C
     1.5 + * 
     1.6 + * Portions Copyright (c) 1990-1999 Nokia Corporation and/or its subsidiary(-ies).
     1.7 + * All rights reserved.
     1.8 + * All rights reserved.
     1.9 + */
    1.10 +
    1.11 +/* No user fns here.  Pesch 15apr92. */
    1.12 +
    1.13 +/*
    1.14 + * Copyright (c) 1990 The Regents of the University of California.
    1.15 + * All rights reserved.
    1.16 + *
    1.17 + * Redistribution and use in source and binary forms are permitted
    1.18 + * provided that the above copyright notice and this paragraph are
    1.19 + * duplicated in all such forms and that any documentation,
    1.20 + * advertising materials, and other materials related to such
    1.21 + * distribution and use acknowledge that the software was developed
    1.22 + * by the University of California, Berkeley.  The name of the
    1.23 + * University may not be used to endorse or promote products derived
    1.24 + * from this software without specific prior written permission.
    1.25 + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
    1.26 + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
    1.27 + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    1.28 + */
    1.29 +
    1.30 +#include <stdio.h>
    1.31 +#include <sys/types.h>
    1.32 +#include <fcntl.h>
    1.33 +#include <sys/unistd.h>
    1.34 +#include "LOCAL.H"
    1.35 +
    1.36 +/*
    1.37 + * Small standard I/O/seek/close functions.
    1.38 + * These maintain the `known seek offset' for seek optimisation.
    1.39 + */
    1.40 +
    1.41 +int
    1.42 +__sread (void* cookie,char *buf,int n)
    1.43 +{
    1.44 +  register FILE *fp = (FILE *) cookie;
    1.45 +  register int ret;
    1.46 +
    1.47 +  ret = _read_r(fp->_data, fp->_file, buf, n);
    1.48 +
    1.49 +  /* If the read succeeded, update the current offset.  */
    1.50 +
    1.51 +  if (ret >= 0)
    1.52 +    fp->_offset += ret;
    1.53 +  else
    1.54 +    fp->_flags &= ~__SOFF;	/* paranoia */
    1.55 +  return ret;
    1.56 +}
    1.57 +
    1.58 +int
    1.59 +__swrite (void* cookie,char const *buf,int n)
    1.60 +{
    1.61 +  register FILE *fp = (FILE *) cookie;
    1.62 +
    1.63 +  if (fp->_flags & __SAPP)
    1.64 +    (void) _lseek_r (fp->_data, fp->_file, (off_t) 0, SEEK_END);
    1.65 +  fp->_flags &= ~__SOFF;	/* in case O_APPEND mode is set */
    1.66 +  return _write_r (fp->_data, fp->_file, buf, n);
    1.67 +}
    1.68 +
    1.69 +fpos_t
    1.70 +__sseek (void* cookie,fpos_t offset,int whence)
    1.71 +{
    1.72 +  register FILE *fp = (FILE *) cookie;
    1.73 +  register off_t ret;
    1.74 +
    1.75 +  ret = _lseek_r (fp->_data, fp->_file, (off_t) offset, whence);
    1.76 +  if (ret == -1L)
    1.77 +    fp->_flags &= ~__SOFF;
    1.78 +  else
    1.79 +    {
    1.80 +      fp->_flags |= __SOFF;
    1.81 +      fp->_offset = ret;
    1.82 +    }
    1.83 +  return ret;
    1.84 +}
    1.85 +
    1.86 +int
    1.87 +__sclose (void* cookie)
    1.88 +{
    1.89 +  FILE *fp = (FILE *) cookie;
    1.90 +
    1.91 +  return _close_r (fp->_data, fp->_file);
    1.92 +}