newlib-cygwin/newlib/libc/stdio/vdprintf.c

48 lines
954 B
C

/* Copyright 2005, 2007 Shaun Jackman
* Permission to use, copy, modify, and distribute this software
* is freely granted, provided that this notice is preserved.
*/
/* doc in dprintf.c */
#include <_ansi.h>
#include <reent.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdarg.h>
#include "local.h"
int
_DEFUN(_vdprintf_r, (ptr, fd, format, ap),
struct _reent *ptr _AND
int fd _AND
const char *__restrict format _AND
va_list ap)
{
char *p;
char buf[512];
size_t n = sizeof buf;
_REENT_SMALL_CHECK_INIT (ptr);
p = _vasnprintf_r (ptr, buf, &n, format, ap);
if (!p)
return -1;
n = _write_r (ptr, fd, p, n);
if (p != buf)
_free_r (ptr, p);
return n;
}
#ifndef _REENT_ONLY
int
_DEFUN(vdprintf, (fd, format, ap),
int fd _AND
const char *__restrict format _AND
va_list ap)
{
return _vdprintf_r (_REENT, fd, format, ap);
}
#endif /* ! _REENT_ONLY */