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
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