+++ /dev/null
-/* $OpenBSD: snprintf.c,v 1.16 2009/10/22 01:23:16 guenther Exp $ */
-/*
- * SPDX-License-Identifier: BSD-3-Clause
- *
- * Copyright (C) 1990, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- */
-
-#include <limits.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdarg.h>
-#include "local.h"
-#include "ust-snprintf.h"
-
-#define DUMMY_LEN 1
-
-int ust_safe_vsnprintf(char *str, size_t n, const char *fmt, va_list ap)
-{
- int ret;
- char dummy[DUMMY_LEN];
- LTTNG_UST_LFILE f;
- struct __lttng_ust_sfileext fext;
-
- /* While snprintf(3) specifies size_t stdio uses an int internally */
- if (n > INT_MAX)
- n = INT_MAX;
- /* Stdio internals do not deal correctly with zero length buffer */
- if (n == 0) {
- str = dummy;
- n = DUMMY_LEN;
- }
- _FILEEXT_SETUP(&f, &fext);
- f._file = -1;
- f._flags = __SWR | __SSTR;
- f._bf._base = f._p = (unsigned char *)str;
- f._bf._size = f._w = n - 1;
- ret = ust_safe_vfprintf(&f, fmt, ap);
- *f._p = '\0';
- return (ret);
-}
-
-int ust_safe_snprintf(char *str, size_t n, const char *fmt, ...)
-{
- va_list ap;
- int ret;
-
- va_start(ap, fmt);
- ret = ust_safe_vsnprintf(str, n, fmt, ap);
- va_end(ap);
-
- return ret;
-}