NetBSD/libexec/makekey/makekey.c

78 lines
2.5 KiB
C

/* $NetBSD: makekey.c,v 1.8 2008/07/20 01:09:07 lukem Exp $ */
/*-
* Copyright (c) 1990, 1993
* 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. 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.
*/
#include <sys/cdefs.h>
#ifndef lint
__COPYRIGHT("@(#) Copyright (c) 1990, 1993\
The Regents of the University of California. All rights reserved.");
#if 0
static char sccsid[] = "from: @(#)makekey.c 8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: makekey.c,v 1.8 2008/07/20 01:09:07 lukem Exp $");
#endif
#endif /* not lint */
#include <err.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
static void get(char *, int);
int main(void);
int
main(void)
{
int len;
char *r, key[9], salt[3];
get(key, sizeof(key) - 1);
get(salt, sizeof(salt) - 1);
len = strlen(r = crypt(key, salt));
if (write(STDOUT_FILENO, r, len) != len)
err(1, "stdout");
exit(0);
}
static void
get(char *bp, int len)
{
int nr;
bp[len] = '\0';
if ((nr = read(STDIN_FILENO, bp, len)) == len)
return;
if (nr >= 0)
errno = EFTYPE;
err(1, "stdin");
}