root/usr/src/cmd/lp/filter/postscript/common/tempnam.c
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */


#ident  "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.1   */
#include <stdio.h>
#include <errno.h>

#if defined(V9) || defined(BSD4_2)
char *tempnam(dir, pfx)
char *dir, *pfx;
{
        int pid;
        unsigned int len;
        char *tnm, *malloc();
        static int seq = 0;

        pid = getpid();
        len = strlen(dir) + strlen(pfx) + 10;
        if ((tnm = malloc(len)) != NULL) {
                sprintf(tnm, "%s", dir);
                if (access(tnm, 7) == -1)
                        return(NULL);
                do {
                        sprintf(tnm, "%s/%s%d%d", dir, pfx, pid, seq++);
                        errno = 0;
                        if (access(tnm, 7) == -1)
                                if (errno == ENOENT)
                                        return(tnm);
                } while (1);
        }
        return(tnm);
}
#endif