| 1 |
207 |
jeremybenn |
/*
|
| 2 |
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
| 3 |
|
|
* All rights reserved.
|
| 4 |
|
|
*
|
| 5 |
|
|
* Redistribution and use in source and binary forms are permitted
|
| 6 |
|
|
* provided that the above copyright notice and this paragraph are
|
| 7 |
|
|
* duplicated in all such forms and that any documentation,
|
| 8 |
|
|
* advertising materials, and other materials related to such
|
| 9 |
|
|
* distribution and use acknowledge that the software was developed
|
| 10 |
|
|
* by the University of California, Berkeley. The name of the
|
| 11 |
|
|
* University may not be used to endorse or promote products derived
|
| 12 |
|
|
* from this software without specific prior written permission.
|
| 13 |
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
| 14 |
|
|
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
| 15 |
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
| 16 |
|
|
*/
|
| 17 |
|
|
/* doc in vfwprintf.c */
|
| 18 |
|
|
|
| 19 |
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
| 20 |
|
|
static char sccsid[] = "%W% (Berkeley) %G%";
|
| 21 |
|
|
#endif /* LIBC_SCCS and not lint */
|
| 22 |
|
|
|
| 23 |
|
|
#include <_ansi.h>
|
| 24 |
|
|
#include <reent.h>
|
| 25 |
|
|
#include <stdio.h>
|
| 26 |
|
|
#include <wchar.h>
|
| 27 |
|
|
#include <limits.h>
|
| 28 |
|
|
#include <stdarg.h>
|
| 29 |
|
|
#include <errno.h>
|
| 30 |
|
|
|
| 31 |
|
|
#include "local.h"
|
| 32 |
|
|
|
| 33 |
|
|
int
|
| 34 |
|
|
_DEFUN(_vswprintf_r, (ptr, str, size, fmt, ap),
|
| 35 |
|
|
struct _reent *ptr _AND
|
| 36 |
|
|
wchar_t *str _AND
|
| 37 |
|
|
size_t size _AND
|
| 38 |
|
|
const wchar_t *fmt _AND
|
| 39 |
|
|
va_list ap)
|
| 40 |
|
|
{
|
| 41 |
|
|
int ret;
|
| 42 |
|
|
FILE f;
|
| 43 |
|
|
|
| 44 |
|
|
if (size > INT_MAX / sizeof (wchar_t))
|
| 45 |
|
|
{
|
| 46 |
|
|
ptr->_errno = EOVERFLOW; /* POSIX extension */
|
| 47 |
|
|
return EOF;
|
| 48 |
|
|
}
|
| 49 |
|
|
f._flags = __SWR | __SSTR;
|
| 50 |
|
|
f._bf._base = f._p = (unsigned char *) str;
|
| 51 |
|
|
f._bf._size = f._w = (size > 0 ? (size - 1) * sizeof (wchar_t) : 0);
|
| 52 |
|
|
f._file = -1; /* No file. */
|
| 53 |
|
|
ret = _svfwprintf_r (ptr, &f, fmt, ap);
|
| 54 |
|
|
/* _svfwprintf_r() does not put in a terminating NUL, so add one if
|
| 55 |
|
|
* appropriate, which is whenever size is > 0. _svfwprintf_r() stops
|
| 56 |
|
|
* after n-1, so always just put at the end. */
|
| 57 |
|
|
if (size > 0) {
|
| 58 |
|
|
*(wchar_t *)f._p = L'\0'; /* terminate the string */
|
| 59 |
|
|
}
|
| 60 |
|
|
if(ret >= size) {
|
| 61 |
|
|
/* _svfwprintf_r() returns how many wide characters it would have printed
|
| 62 |
|
|
* if there were enough space. Return an error if too big to fit in str,
|
| 63 |
|
|
* unlike snprintf, which returns the size needed. */
|
| 64 |
|
|
ptr->_errno = EOVERFLOW; /* POSIX extension */
|
| 65 |
|
|
ret = -1;
|
| 66 |
|
|
}
|
| 67 |
|
|
return ret;
|
| 68 |
|
|
}
|
| 69 |
|
|
|
| 70 |
|
|
#ifndef _REENT_ONLY
|
| 71 |
|
|
|
| 72 |
|
|
int
|
| 73 |
|
|
_DEFUN(vswprintf, (str, size, fmt, ap),
|
| 74 |
|
|
wchar_t *str _AND
|
| 75 |
|
|
size_t size _AND
|
| 76 |
|
|
const wchar_t *fmt _AND
|
| 77 |
|
|
va_list ap)
|
| 78 |
|
|
{
|
| 79 |
|
|
return _vswprintf_r (_REENT, str, size, fmt, ap);
|
| 80 |
|
|
}
|
| 81 |
|
|
|
| 82 |
|
|
#endif /* !_REENT_ONLY */
|
