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/* Copyright 2005, 2007 Shaun Jackman

 * Permission to use, copy, modify, and distribute this software

 * is freely granted, provided that this notice is preserved.

 */

/*

FUNCTION

<<dprintf>>, <<vdprintf>>---print to a file descriptor

INDEX

        dprintf

INDEX

        _dprintf_r

INDEX

        vdprintf

INDEX

        _vdprintf_r

ANSI_SYNOPSIS

        #include <stdio.h>

        #include <stdarg.h>

        int dprintf(int <[fd]>, const char *<[format]>, ...);

        int vdprintf(int <[fd]>, const char *<[format]>, va_list <[ap]>);

        int _dprintf_r(struct _reent *<[ptr]>, int <[fd]>,

                        const char *<[format]>, ...);

        int _vdprintf_r(struct _reent *<[ptr]>, int <[fd]>,

                        const char *<[format]>, va_list <[ap]>);

DESCRIPTION

<<dprintf>> and <<vdprintf>> allow printing a format, similarly to

<<printf>>, but write to a file descriptor instead of to a <<FILE>>

stream.

The functions <<_dprintf_r>> and <<_vdprintf_r>> are simply

reentrant versions of the functions above.

RETURNS

The return value and errors are exactly as for <<write>>, except that

<<errno>> may also be set to <<ENOMEM>> if the heap is exhausted.

PORTABILITY

This function is originally a GNU extension in glibc and is not portable.

Supporting OS subroutines required: <<sbrk>>, <<write>>.

*/

#include <_ansi.h>

#include <reent.h>

#include <stdio.h>

#include <unistd.h>

#include <stdarg.h>

#include "local.h"

int

_DEFUN(_dprintf_r, (ptr, fd, format),

       struct _reent *ptr _AND

       int fd _AND

       const char *format _DOTS)

{

        va_list ap;

        int n;

        _REENT_SMALL_CHECK_INIT (ptr);

        va_start (ap, format);

        n = _vdprintf_r (ptr, fd, format, ap);

        va_end (ap);

        return n;

}

#ifndef _REENT_ONLY

int

_DEFUN(dprintf, (fd, format),

       int fd _AND

       const char *format _DOTS)

{

  va_list ap;

  int n;

  struct _reent *ptr = _REENT;

  _REENT_SMALL_CHECK_INIT (ptr);

  va_start (ap, format);

  n = _vdprintf_r (ptr, fd, format, ap);

  va_end (ap);

  return n;

}

#endif /* ! _REENT_ONLY */