BSD 4_3_Net_2 release

[unix-history] / usr / src / kerberosIV / make_keypair / make_keypair.c

/*-
* Copyright (c) 1988 The 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.
*/

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1988 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)make_keypair.c      5.1 (Berkeley) 4/12/91";
#endif /* not lint */

#include <sys/types.h>
#include <sys/file.h>
#include <netinet/in.h>
#include <stdio.h>
#include <netdb.h>
#include <kerberosIV/des.h>
#include <kerberosIV/krb.h>
#include "pathnames.h"
#include "register_proto.h"

extern void random_key(), herror();
void make_key(), usage();

main(argc, argv)
       int     argc;
       char    **argv;
{
       struct hostent  *hp;
       char            *addr;
       int             i;
       struct sockaddr_in      sin;

       if (argc != 2) {
               usage(argv[0]);
               exit(1);
       }

       if ((hp = gethostbyname(argv[1])) == NULL) {
               herror(argv[1]);
               exit(1);
       }

       for (i = 0; addr = hp->h_addr_list[i]; i++) {
               addr = hp->h_addr_list[i];
               bcopy(addr, &sin.sin_addr, hp->h_length);

               printf("Making key for host %s (%s)\n",
                       argv[1], inet_ntoa(sin.sin_addr));
               make_key(sin.sin_addr);
       }
       printf("==========\n");
       printf("One copy of the each key should be put in %s on the\n",
               SERVER_KEYDIR);
       printf("Kerberos server machine (mode 600, owner root).\n");
       printf("Another copy of each key should be put on the named\n");
       printf("client as %sXXX.XXX.XXX.XXX (same modes as above),\n",
               CLIENT_KEYFILE);
       printf("where the X's refer to digits of the host's inet address.\n");
       (void)fflush(stdout);
       exit(0);
}

void
make_key(addr)
       struct in_addr  addr;
{
       struct keyfile_data     kfile;
       char            namebuf[255];
       int             fd;

       (void)sprintf(namebuf, ".%s%s",
               CLIENT_KEYFILE,
               inet_ntoa(addr));
       fd = open(namebuf, O_WRONLY|O_CREAT, 0600);
       if (fd < 0) {
               perror("open");
               exit(1);
       }
       random_key(kfile.kf_key);
       printf("writing to file -> %s ...", namebuf);
       if (write(fd, &kfile, sizeof(kfile)) != sizeof(kfile)) {
               fprintf(stderr, "error writing file %s\n", namebuf);
       }
       printf("done.\n");
       (void)close(fd);
       return;
}

void
usage(name)
       char    *name;
{
       fprintf(stderr, "usage: %s host\n", name);
}