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/* Copyright 2005 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
vdprintf
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]>);
TRAD_SYNOPSIS
#include <stdio.h>
#include <varargs.h>
int dprintf(<[fd]>, <[format]> [, <[arg]>, ...])
int <[fd]>;
char *<[format]>;
int vdprintf(<[fd]>, <[fmt]>, <[list]>)
int <[fd]>;
char *<[fmt]>;
va_list <[list]>;
int _dprintf_r(<[ptr]>, <[fd]>, <[format]> [, <[arg]>, ...])
struct _reent *<[ptr]>;
int <[fd]>;
char *<[format]>;
int _vdprintf_r(<[ptr]>, <[fd]>, <[fmt]>, <[list]>)
struct _reent *<[ptr]>;
int <[fd]>;
char *<[fmt]>;
va_list <[list]>;
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>
#ifdef _HAVE_STDC
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#ifdef _HAVE_STDC
int
_dprintf_r(struct _reent *ptr, int fd, _CONST char *format, ...)
#else
int
_dprintf_r(ptr, fd, format, va_alist)
struct _reent *ptr;
int fd;
char *format;
va_dcl
#endif
{
va_list ap;
int n;
_REENT_SMALL_CHECK_INIT (ptr);
#ifdef _HAVE_STDC
va_start (ap, format);
#else
va_start (ap);
#endif
n = _vdprintf_r (ptr, fd, format, ap);
va_end (ap);
return n;
}
#ifndef _REENT_ONLY
#ifdef _HAVE_STDC
int
dprintf(int fd, _CONST char *format, ...)
#else
int
dprintf(fd, format, va_alist)
struct _reent *ptr;
int fd;
char *format;
va_dcl
#endif
{
va_list ap;
int n;
_REENT_SMALL_CHECK_INIT (_REENT);
#ifdef _HAVE_STDC
va_start (ap, format);
#else
va_start (ap);
#endif
n = _vdprintf_r (_REENT, fd, format, ap);
va_end (ap);
return n;
}
#endif /* ! _REENT_ONLY */
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