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/*
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 * Copyright (c) 1988, 1993
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 *      The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. All advertising materials mentioning features or use of this software
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 *    must display the following acknowledgement:
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 *      This product includes software developed by the University of
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 *      California, Berkeley and its contributors.
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 * 4. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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/* MODIFIED */
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#include <fs/limits.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)tempnam.c   8.1 (Berkeley) 6/4/93";
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#endif
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static const char rcsid[] =
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                "$\Id: tempnam.c,v 1.3 1996/06/22 10:33:58 jraynard Exp $";
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#endif /* LIBC_SCCS and not lint */
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#include <sys/param.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <paths.h>
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char *
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tempnam(dir, pfx)
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        const char *dir, *pfx;
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{
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        int sverrno;
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        char *f, *name;
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        if (!(name = malloc(MAXPATHLEN)))
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                return(NULL);
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        if (!pfx)
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                pfx = "tmp.";
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        if ((f = getenv("TMPDIR"))) {
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                (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
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                    *(f + strlen(f) - 1) == '/'? "": "/", pfx);
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                if ((f = mktemp(name)))
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                        return(f);
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        }
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        if ((f = (char *)dir)) {
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                (void)snprintf(name, MAXPATHLEN, "%s%s%sXXXXXX", f,
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                    *(f + strlen(f) - 1) == '/'? "": "/", pfx);
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                if ((f = mktemp(name)))
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                        return(f);
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        }
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        f = P_tmpdir;
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        (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
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        if ((f = mktemp(name)))
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                return(f);
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        f = _PATH_TMP;
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        (void)snprintf(name, MAXPATHLEN, "%s%sXXXXXX", f, pfx);
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        if ((f = mktemp(name)))
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                return(f);
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        sverrno = errno;
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        free(name);
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        errno = sverrno;
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        return(NULL);
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}