155682Smarkm/* 2233294Sstas * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska H��gskolan 355682Smarkm * (Royal Institute of Technology, Stockholm, Sweden). 455682Smarkm * All rights reserved. 5233294Sstas * 655682Smarkm * Redistribution and use in source and binary forms, with or without 755682Smarkm * modification, are permitted provided that the following conditions 855682Smarkm * are met: 9233294Sstas * 1055682Smarkm * 1. Redistributions of source code must retain the above copyright 1155682Smarkm * notice, this list of conditions and the following disclaimer. 12233294Sstas * 1355682Smarkm * 2. Redistributions in binary form must reproduce the above copyright 1455682Smarkm * notice, this list of conditions and the following disclaimer in the 1555682Smarkm * documentation and/or other materials provided with the distribution. 16233294Sstas * 1755682Smarkm * 3. Neither the name of the Institute nor the names of its contributors 1855682Smarkm * may be used to endorse or promote products derived from this software 1955682Smarkm * without specific prior written permission. 20233294Sstas * 2155682Smarkm * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 2255682Smarkm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2355682Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2455682Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 2555682Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2655682Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2755682Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2855682Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2955682Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3055682Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3155682Smarkm * SUCH DAMAGE. 3255682Smarkm */ 3355682Smarkm 3455682Smarkm#include <config.h> 3555682Smarkm 3655682Smarkm#include <string.h> 3755682Smarkm#ifdef HAVE_UNISTD_H 3855682Smarkm#include <unistd.h> 3955682Smarkm#endif 4055682Smarkm#ifdef HAVE_FCNTL_H 4155682Smarkm#include <fcntl.h> 4255682Smarkm#endif 4355682Smarkm#include <errno.h> 4455682Smarkm 45233294Sstas#include <roken.h> 4655682Smarkm 4755682Smarkm#ifndef HAVE_MKSTEMP 4855682Smarkm 49233294SstasROKEN_LIB_FUNCTION int ROKEN_LIB_CALL 5055682Smarkmmkstemp(char *template) 5155682Smarkm{ 5255682Smarkm int start, i; 5355682Smarkm pid_t val; 5455682Smarkm val = getpid(); 5555682Smarkm start = strlen(template) - 1; 5655682Smarkm while(template[start] == 'X') { 5755682Smarkm template[start] = '0' + val % 10; 5855682Smarkm val /= 10; 5955682Smarkm start--; 6055682Smarkm } 61233294Sstas 6255682Smarkm do{ 6355682Smarkm int fd; 6455682Smarkm fd = open(template, O_RDWR | O_CREAT | O_EXCL, 0600); 6555682Smarkm if(fd >= 0 || errno != EEXIST) 6655682Smarkm return fd; 6755682Smarkm i = start + 1; 6855682Smarkm do{ 6955682Smarkm if(template[i] == 0) 7055682Smarkm return -1; 7155682Smarkm template[i]++; 7255682Smarkm if(template[i] == '9' + 1) 7355682Smarkm template[i] = 'a'; 7455682Smarkm if(template[i] <= 'z') 7555682Smarkm break; 7655682Smarkm template[i] = 'a'; 7755682Smarkm i++; 7855682Smarkm }while(1); 7955682Smarkm }while(1); 8055682Smarkm} 8155682Smarkm 8255682Smarkm#endif 83