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      1 /*	$NetBSD: makekey.c,v 1.8 2008/07/20 01:09:07 lukem Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1990, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 __COPYRIGHT("@(#) Copyright (c) 1990, 1993\
     35  The Regents of the University of California.  All rights reserved.");
     36 #if 0
     37 static char sccsid[] = "from: @(#)makekey.c	8.1 (Berkeley) 6/4/93";
     38 #else
     39 __RCSID("$NetBSD: makekey.c,v 1.8 2008/07/20 01:09:07 lukem Exp $");
     40 #endif
     41 #endif /* not lint */
     42 
     43 #include <err.h>
     44 #include <errno.h>
     45 #include <string.h>
     46 #include <stdlib.h>
     47 #include <unistd.h>
     48 
     49 static void get(char *, int);
     50 int main(void);
     51 
     52 int
     53 main(void)
     54 {
     55 	int len;
     56 	char *r, key[9], salt[3];
     57 
     58 	get(key, sizeof(key) - 1);
     59 	get(salt, sizeof(salt) - 1);
     60 	len = strlen(r = crypt(key, salt));
     61 	if (write(STDOUT_FILENO, r, len) != len)
     62 		err(1, "stdout");
     63 	exit(0);
     64 }
     65 
     66 static void
     67 get(char *bp, int len)
     68 {
     69 	int nr;
     70 
     71 	bp[len] = '\0';
     72 	if ((nr = read(STDIN_FILENO, bp, len)) == len)
     73 		return;
     74 	if (nr >= 0)
     75 		errno = EFTYPE;
     76 	err(1, "stdin");
     77 }
     78