/* PUTS.C
 * 
 * Portions Copyright (c) 1990-2006 Nokia Corporation and/or its subsidiary(-ies).
 * All rights reserved.
 */

/*
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

/*
FUNCTION
<<puts>>---write a character string

INDEX
	puts
INDEX
	_puts_r

ANSI_SYNOPSIS
	#include <stdio.h>
	int puts(const char *<[s]>);

	int _puts_r(void *<[reent]>, const char *<[s]>);

TRAD_SYNOPSIS
	#include <stdio.h>
	int puts(<[s]>)
	char *<[s]>;

	int _puts_r(<[reent]>, <[s]>)
	char *<[reent]>;
	char *<[s]>;

DESCRIPTION
<<puts>> writes the string at <[s]> (followed by a newline, instead of
the trailing null) to the standard output stream.

The alternate function <<_puts_r>> is a reentrant version.  The extra
argument <[reent]> is a pointer to a reentrancy structure.

RETURNS
If successful, the result is a nonnegative integer; otherwise, the
result is <<EOF>>.

PORTABILITY
ANSI C requires <<puts>>, but does not specify that the result on
success must be <<0>>; any non-negative value is permitted.

Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
<<lseek>>, <<read>>, <<sbrk>>, <<write>>.  */

#include <stdio_r.h>
#include <string.h>
#include "FVWRITE.H"
#include "LOCAL.H"

/**
Writes the given string to stdout, appending a newline.
@return
@param 
*/
EXPORT_C int
_puts_r (struct _reent *ptr, const char * s)
{
  size_t c = strlen (s);
  struct __suio uio;
  struct __siov iov[2];

  iov[0].iov_base = s;
  iov[0].iov_len = c;
  iov[1].iov_base = "\n";
  iov[1].iov_len = 1;
  uio.uio_resid = c + 1;
  uio.uio_iov = &iov[0];
  uio.uio_iovcnt = 2;

  return (__sfvwrite (_stdout_r (ptr), &uio) ? EOF : '\n');
}

#ifndef _REENT_ONLY
/**
Outputs a string to stdout. Copies the string to standard output stream
and appends a new line character (\n).

@param Null-terminated string to be outputed.

@return On Success, a non-negative value is returned.
		On Failure, EOF value is returned and errno may be set.
*/
EXPORT_C int
puts (char const * s)
{
  struct _reent *r = _REENT2;
  if (!r)
	return EOF; // Memory for library globals is not allocated (errno not set).
  return _puts_r (r, s);
}

#endif
