11dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* $OpenBSD: tempnam.c,v 1.14 2005/08/08 08:05:36 espie Exp $ */ 21dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 31dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Copyright (c) 1988, 1993 41dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * The Regents of the University of California. All rights reserved. 51dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 61dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Redistribution and use in source and binary forms, with or without 71dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * modification, are permitted provided that the following conditions 81dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * are met: 91dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * notice, this list of conditions and the following disclaimer. 111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * documentation and/or other materials provided with the distribution. 141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 3. Neither the name of the University nor the names of its contributors 151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * may be used to endorse or promote products derived from this software 161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * without specific prior written permission. 171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * SUCH DAMAGE. 291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <sys/param.h> 321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <errno.h> 331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <stdio.h> 341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <stdlib.h> 351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <string.h> 361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <unistd.h> 371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <paths.h> 381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project__warn_references(tempnam, 401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project "warning: tempnam() possibly used unsafely; consider using mkstemp()"); 411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectextern char *_mktemp(char *); 431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectchar * 451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projecttempnam(const char *dir, const char *pfx) 461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int sverrno; 481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project char *f, *name; 491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!(name = malloc(MAXPATHLEN))) 511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return(NULL); 521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (!pfx) 541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pfx = "tmp."; 551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (issetugid() == 0 && (f = getenv("TMPDIR"))) { 571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXXXXXX", f, 581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *(f + strlen(f) - 1) == '/'? "": "/", pfx); 591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((f = _mktemp(name))) 601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return(f); 611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((f = (char *)dir)) { 641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXXXXXX", f, 651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project *(f + strlen(f) - 1) == '/'? "": "/", pfx); 661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((f = _mktemp(name))) 671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return(f); 681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project f = P_tmpdir; 711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXXXXX", f, pfx); 721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((f = _mktemp(name))) 731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return(f); 741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project f = _PATH_TMP; 761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXXXXX", f, pfx); 771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if ((f = _mktemp(name))) 781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return(f); 791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project sverrno = errno; 811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project free(name); 821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project errno = sverrno; 831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return(NULL); 841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 85