kolibrios/contrib/sdk/sources/newlib/libc/stdio/puts.c

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/*
* 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(struct _reent *<[reent]>, const char *<[s]>);
TRAD_SYNOPSIS
#include <stdio.h>
int puts(<[s]>)
char *<[s]>;
int _puts_r(<[reent]>, <[s]>)
struct _reent *<[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>>.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "%W% (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */
#include <_ansi.h>
#include <reent.h>
#include <stdio.h>
#include <string.h>
#include "fvwrite.h"
#include "local.h"
/*
* Write the given string to stdout, appending a newline.
*/
int
_DEFUN(_puts_r, (ptr, s),
struct _reent *ptr _AND
_CONST char * s)
{
#ifdef _FVWRITE_IN_STREAMIO
int result;
size_t c = strlen (s);
struct __suio uio;
struct __siov iov[2];
FILE *fp;
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;
_REENT_SMALL_CHECK_INIT (ptr);
fp = _stdout_r (ptr);
CHECK_INIT (ptr, fp);
_newlib_flockfile_start (fp);
ORIENT (fp, -1);
result = (__sfvwrite_r (ptr, fp, &uio) ? EOF : '\n');
_newlib_flockfile_end (fp);
return result;
#else
int result = EOF;
const char *p = s;
FILE *fp;
_REENT_SMALL_CHECK_INIT (ptr);
fp = _stdout_r (ptr);
CHECK_INIT (ptr, fp);
_newlib_flockfile_start (fp);
ORIENT (fp, -1);
/* Make sure we can write. */
if (cantwrite (ptr, fp))
goto err;
while (*p)
{
if (__sputc_r (ptr, *p++, fp) == EOF)
goto err;
}
if (__sputc_r (ptr, '\n', fp) == EOF)
goto err;
result = '\n';
err:
_newlib_flockfile_end (fp);
return result;
#endif
}
#ifndef _REENT_ONLY
int
_DEFUN(puts, (s),
char _CONST * s)
{
return _puts_r (_REENT, s);
}
#endif