tmpnam.c revision 52466
11573Srgrimes/*- 21573Srgrimes * Copyright (c) 1990, 1993, 1994 31573Srgrimes * The Regents of the University of California. All rights reserved. 41573Srgrimes * 51573Srgrimes * This code is derived from software contributed to Berkeley by 61573Srgrimes * Chris Torek. 71573Srgrimes * 81573Srgrimes * Redistribution and use in source and binary forms, with or without 91573Srgrimes * modification, are permitted provided that the following conditions 101573Srgrimes * are met: 111573Srgrimes * 1. Redistributions of source code must retain the above copyright 121573Srgrimes * notice, this list of conditions and the following disclaimer. 131573Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141573Srgrimes * notice, this list of conditions and the following disclaimer in the 151573Srgrimes * documentation and/or other materials provided with the distribution. 161573Srgrimes * 3. All advertising materials mentioning features or use of this software 171573Srgrimes * must display the following acknowledgement: 181573Srgrimes * This product includes software developed by the University of 191573Srgrimes * California, Berkeley and its contributors. 201573Srgrimes * 4. Neither the name of the University nor the names of its contributors 211573Srgrimes * may be used to endorse or promote products derived from this software 221573Srgrimes * without specific prior written permission. 231573Srgrimes * 241573Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 251573Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 261573Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 271573Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 281573Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 291573Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 301573Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 311573Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 321573Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 331573Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 341573Srgrimes * SUCH DAMAGE. 3552466Sache * 3652466Sache * $FreeBSD: head/lib/libc/stdio/tmpnam.c 52466 1999-10-24 11:57:24Z ache $ 371573Srgrimes */ 381573Srgrimes 391573Srgrimes#if defined(LIBC_SCCS) && !defined(lint) 401573Srgrimesstatic char sccsid[] = "@(#)tmpnam.c 8.3 (Berkeley) 3/28/94"; 411573Srgrimes#endif /* LIBC_SCCS and not lint */ 421573Srgrimes 431573Srgrimes#include <sys/types.h> 441573Srgrimes 451573Srgrimes#include <stdio.h> 461573Srgrimes#include <unistd.h> 471573Srgrimes 4850121Simp__warn_references(tmpnam, 4950121Simp "warning: tmpnam() possibly used unsafely; consider using mkstemp()"); 5050121Simp 5150121Simpextern char *_mktemp __P((char *)); 5250121Simp 531573Srgrimeschar * 541573Srgrimestmpnam(s) 551573Srgrimes char *s; 561573Srgrimes{ 571573Srgrimes static u_long tmpcount; 581573Srgrimes static char buf[L_tmpnam]; 591573Srgrimes 601573Srgrimes if (s == NULL) 611573Srgrimes s = buf; 621573Srgrimes (void)snprintf(s, L_tmpnam, "%stmp.%lu.XXXXXX", P_tmpdir, tmpcount); 631573Srgrimes ++tmpcount; 6452466Sache return (_mktemp(s)); 651573Srgrimes} 66