snprintf_chk.c revision 1.3.2.3
1 1.3.2.3 liamjfoy /* $NetBSD: snprintf_chk.c,v 1.3.2.3 2007/08/24 20:07:39 liamjfoy Exp $ */ 2 1.3.2.2 liamjfoy 3 1.3.2.2 liamjfoy /*- 4 1.3.2.2 liamjfoy * Copyright (c) 2006 The NetBSD Foundation, Inc. 5 1.3.2.2 liamjfoy * All rights reserved. 6 1.3.2.2 liamjfoy * 7 1.3.2.2 liamjfoy * This code is derived from software contributed to The NetBSD Foundation 8 1.3.2.2 liamjfoy * by Christos Zoulas. 9 1.3.2.2 liamjfoy * 10 1.3.2.2 liamjfoy * Redistribution and use in source and binary forms, with or without 11 1.3.2.2 liamjfoy * modification, are permitted provided that the following conditions 12 1.3.2.2 liamjfoy * are met: 13 1.3.2.2 liamjfoy * 1. Redistributions of source code must retain the above copyright 14 1.3.2.2 liamjfoy * notice, this list of conditions and the following disclaimer. 15 1.3.2.2 liamjfoy * 2. Redistributions in binary form must reproduce the above copyright 16 1.3.2.2 liamjfoy * notice, this list of conditions and the following disclaimer in the 17 1.3.2.2 liamjfoy * documentation and/or other materials provided with the distribution. 18 1.3.2.2 liamjfoy * 3. All advertising materials mentioning features or use of this software 19 1.3.2.2 liamjfoy * must display the following acknowledgement: 20 1.3.2.2 liamjfoy * This product includes software developed by the NetBSD 21 1.3.2.2 liamjfoy * Foundation, Inc. and its contributors. 22 1.3.2.2 liamjfoy * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.3.2.2 liamjfoy * contributors may be used to endorse or promote products derived 24 1.3.2.2 liamjfoy * from this software without specific prior written permission. 25 1.3.2.2 liamjfoy * 26 1.3.2.2 liamjfoy * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.3.2.2 liamjfoy * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.3.2.2 liamjfoy * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.3.2.2 liamjfoy * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.3.2.2 liamjfoy * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.3.2.2 liamjfoy * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.3.2.2 liamjfoy * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.3.2.2 liamjfoy * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.3.2.2 liamjfoy * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.3.2.2 liamjfoy * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.3.2.2 liamjfoy * POSSIBILITY OF SUCH DAMAGE. 37 1.3.2.2 liamjfoy */ 38 1.3.2.2 liamjfoy #include <sys/cdefs.h> 39 1.3.2.3 liamjfoy __RCSID("$NetBSD: snprintf_chk.c,v 1.3.2.3 2007/08/24 20:07:39 liamjfoy Exp $"); 40 1.3.2.2 liamjfoy 41 1.3.2.2 liamjfoy /*LINTLIBRARY*/ 42 1.3.2.2 liamjfoy 43 1.3.2.2 liamjfoy #include <ssp/ssp.h> 44 1.3.2.2 liamjfoy #include <stdio.h> 45 1.3.2.2 liamjfoy #include <stdarg.h> 46 1.3.2.3 liamjfoy #include <ssp/stdio.h> 47 1.3.2.2 liamjfoy 48 1.3.2.2 liamjfoy #undef vsnprintf 49 1.3.2.2 liamjfoy 50 1.3.2.2 liamjfoy /*ARGSUSED*/ 51 1.3.2.2 liamjfoy int 52 1.3.2.2 liamjfoy __snprintf_chk(char * __restrict buf, size_t len, int flags, size_t slen, 53 1.3.2.2 liamjfoy const char * __restrict fmt, ...) 54 1.3.2.2 liamjfoy { 55 1.3.2.2 liamjfoy va_list ap; 56 1.3.2.2 liamjfoy int rv; 57 1.3.2.2 liamjfoy 58 1.3.2.2 liamjfoy if (len > slen) 59 1.3.2.2 liamjfoy __chk_fail(); 60 1.3.2.2 liamjfoy 61 1.3.2.2 liamjfoy va_start(ap, fmt); 62 1.3.2.2 liamjfoy rv = vsnprintf(buf, len, fmt, ap); 63 1.3.2.2 liamjfoy va_end(ap); 64 1.3.2.2 liamjfoy 65 1.3.2.2 liamjfoy return rv; 66 1.3.2.2 liamjfoy } 67
Indexes created Wed Oct 01 18:09:54 GMT 2025