Re: installing nmh on a DEC Ultrix machine

On Sun, 23 Aug 1998 21:19:55 +0100  "Olivier Lecarme" wrote:

> The configure step works well. I changed the config.h file for setting
> variables BIND, BSD42 and BSD44.
>
> Unfortunately, the mkstemp routine is not available, although mktemp is
> available. Is there an option somewhere for using the second one in
> place of the first one, or should I try to program mkstemp using mktemp?

I've attached the mktemp/mkstemp routines from Berkeley/NetII that I use
under Ultrix.  To make this "just work", you should do something like:

      - Name this file sbr/mkstemp.c
      - Add 'mkstemp' to the 'AC_REPLACE_FUNCS(snprintf strerror strdup)'
        line in 'configure.in'
      - Run 'autoconf'
      - Run 'autoheader'
      - Run 'make distclean'
      - Run './configure'
      - Run 'make'

Note that I didn't test the above!

Simon.
-------------------------------- mktemp.c --------------------------------
/*
 * Copyright (c) 1987 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
/*static char *sccsid = "from: @(#)mktemp.c     5.10 (Berkeley) 2/24/91";*/
static char *rcsid = "$Id: mktemp.c,v 1.1.1.1 1996/06/07 07:40:16 simonb Exp $";
#endif /* LIBC_SCCS and not lint */

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <ctype.h>
#include <unistd.h>

static int _gettemp();

int
mkstemp(path)
        char *path;
{
        int fd;

        return (_gettemp(path, &fd) ? fd : -1);
}

char *
mktemp(path)
        char *path;
{
        return(_gettemp(path, (int *)NULL) ? path : (char *)NULL);
}

static int
_gettemp(path, doopen)
        char *path;
        register int *doopen;
{
        extern int errno;
        register char *start, *trv;
        struct stat sbuf;
        u_int pid;

        pid = getpid();
        for (trv = path; *trv; ++trv);          /* extra X's get set to 0's */
        while (*--trv == 'X') {
                *trv = (pid % 10) + '0';
                pid /= 10;
        }

        /*
         * check the target directory; if you have six X's and it
         * doesn't exist this runs for a *very* long time.
         */
        for (start = trv + 1;; --trv) {
                if (trv <= path)
                        break;
                if (*trv == '/') {
                        *trv = '\0';
                        if (stat(path, &sbuf))
                                return(0);
                        if (!S_ISDIR(sbuf.st_mode)) {
                                errno = ENOTDIR;
                                return(0);
                        }
                        *trv = '/';
                        break;
                }
        }

        for (;;) {
                if (doopen) {
                        if ((*doopen =
                            open(path, O_CREAT|O_EXCL|O_RDWR, 0600)) >= 0)
                                return(1);
                        if (errno != EEXIST)
                                return(0);
                }
                else if (stat(path, &sbuf))
                        return(errno == ENOENT ? 1 : 0);

                /* tricky little algorithm for backward compatibility */
                for (trv = start;;) {
                        if (!*trv)
                                return(0);
                        if (*trv == 'z')
                                *trv++ = 'a';
                        else {
                                if (isdigit(*trv))
                                        *trv = 'a';
                                else
                                        ++*trv;
                                break;
                        }
                }
        }
        /*NOTREACHED*/
}