Importing usr.bin/pwhash

No Minix-specific changes needed.

Change-Id: I7de666c3e010fef710805942c79b5674fea1d63c
This commit is contained in:
Thomas Cort 2013-10-24 13:41:19 -04:00
parent 6ea7f916db
commit 93ce9b1174
6 changed files with 356 additions and 1 deletions

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@ -438,6 +438,7 @@
./usr/bin/progressbar minix-sys
./usr/bin/pr_routes minix-sys
./usr/bin/ps minix-sys
./usr/bin/pwhash minix-sys
./usr/bin/ramdisk minix-sys
./usr/bin/ranlib minix-sys binutils
./usr/bin/rarpd minix-sys
@ -2006,6 +2007,7 @@
./usr/man/man1/profile.1 minix-sys
./usr/man/man1/ps.1 minix-sys
./usr/man/man1/pwd.1 minix-sys
./usr/man/man1/pwhash.1 minix-sys
./usr/man/man1/ranlib.1 minix-sys binutils
./usr/man/man1/rcp.1 minix-sys
./usr/man/man1/read.1 minix-sys

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@ -192,6 +192,7 @@
2013/10/24 12:00:00,usr.bin/pr
2013/10/17 12:00:00,usr.bin/printenv
2012/10/17 12:00:00,usr.bin/printf
2013/10/24 12:00:00,usr.bin/pwhash
2013/09/28 12:00:00,usr.bin/rev
2010/02/19 16:35:27,usr.bin/sed
2010/05/27 08:40:19,usr.bin/seq

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@ -20,7 +20,7 @@ SUBDIR= \
\
nbperf newgrp nice nl nohup nvi \
passwd pr \
printenv printf \
printenv printf pwhash \
rev \
\
shuffle sed seq \

13
usr.bin/pwhash/Makefile Normal file
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@ -0,0 +1,13 @@
# $NetBSD: Makefile,v 1.7 2009/04/14 22:15:25 lukem Exp $
# from: @(#)Makefile 8.3 (Berkeley) 4/2/94
.include <bsd.own.mk>
PROG= pwhash
CPPFLAGS+=-I${.CURDIR} -DLOGIN_CAP
DPADD+= ${LIBCRYPT} ${LIBUTIL}
LDADD+= -lcrypt -lutil
.include <bsd.prog.mk>

96
usr.bin/pwhash/pwhash.1 Normal file
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@ -0,0 +1,96 @@
.\" $NetBSD: pwhash.1,v 1.7 2009/10/16 08:09:12 wiz Exp $
.\" $OpenBSD: encrypt.1,v 1.16 2000/11/09 17:52:07 aaron Exp $
.\"
.\" Copyright (c) 1996, Jason Downs. 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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.
.\"
.Dd October 16, 2009
.Dt PWHASH 1
.Os
.Sh NAME
.Nm pwhash
.Nd hashes passwords from the command line or standard input
.Sh SYNOPSIS
.Nm pwhash
.Op Fl km
.Op Fl b Ar rounds
.Op Fl S Ar rounds
.Op Fl s Ar salt
.Op Fl p | Ar string
.Sh DESCRIPTION
.Nm
prints the encrypted form of
.Ar string
to the standard output.
This is mostly useful for encrypting passwords from within scripts.
.Pp
The options are as follows:
.Bl -tag -width Ds
.It Fl b Ar rounds
Encrypt the string using Blowfish hashing with the specified
.Ar rounds .
.It Fl k
Run in
.Xr makekey 8
compatible mode.
A single combined key (eight chars) and salt (two chars) with no
intermediate space are read from standard input and the DES encrypted
result is written to standard output without a terminating newline.
.It Fl m
Encrypt the string using MD5.
.It Fl p
Prompt for a single string with echo turned off.
.It Fl S Ar rounds
Encrypt the salt with HMAC-SHA1 using the password as key and the specified
.Ar rounds
as a hint for the number of iterations.
.It Fl s Ar salt
Encrypt the string using DES, with the specified
.Ar salt .
.El
.Pp
If no
.Ar string
is specified,
.Nm
reads one string per line from standard input, encrypting each one
with the chosen algorithm from above.
In the event that no specific algorithm is given as a command line option,
the algorithm specified in the default class in
.Pa /etc/passwd.conf
will be used.
.Pp
For MD5 and Blowfish a new random salt is automatically generated for each
password.
.Pp
Specifying the
.Ar string
on the command line should be discouraged; using the
standard input is more secure.
.Sh FILES
.Bl -tag -width /etc/passwd.conf -compact
.It Pa /etc/passwd.conf
.El
.Sh SEE ALSO
.Xr crypt 3 ,
.Xr passwd.conf 5

243
usr.bin/pwhash/pwhash.c Normal file
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@ -0,0 +1,243 @@
/* $NetBSD: pwhash.c,v 1.15 2011/09/16 15:39:28 joerg Exp $ */
/* $OpenBSD: encrypt.c,v 1.16 2002/02/16 21:27:45 millert Exp $ */
/*
* Copyright (c) 1996, Jason Downs. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``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 AUTHOR(S) 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
__RCSID("$NetBSD: pwhash.c,v 1.15 2011/09/16 15:39:28 joerg Exp $");
#endif
#include <sys/types.h>
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <login_cap.h>
#include <util.h>
/*
* Very simple little program, for encrypting passwords from the command
* line. Useful for scripts and such.
*/
#define DO_MAKEKEY 0
#define DO_DES 1
#define DO_MD5 2
#define DO_BLF 3
#define DO_SHA1 4
__dead static void
usage(void)
{
(void)fprintf(stderr,
"Usage: %s [-km] [-b rounds] [-S rounds] [-s salt] [-p | string]\n",
getprogname());
exit(1);
}
static char *
trim(char *line)
{
char *ptr;
for (ptr = &line[strlen(line) - 1]; ptr > line; ptr--) {
if (!isspace((unsigned char)*ptr))
break;
}
ptr[1] = '\0';
for (ptr = line; *ptr && isspace((unsigned char)*ptr); ptr++)
continue;
return ptr;
}
static void
print_passwd(char *string, int operation, const char *extra)
{
char buf[_PASSWORD_LEN];
char option[LINE_MAX], *key, *opt;
int error = 0;
const char *salt = buf;
switch(operation) {
case DO_MAKEKEY:
/*
* makekey mode: parse string into separate DES key and salt.
*/
if (strlen(string) != 10) {
/* To be compatible... */
error = EFTYPE;
break;
}
salt = &string[8];
break;
case DO_MD5:
error = pw_gensalt(buf, _PASSWORD_LEN, "md5", extra);
break;
case DO_SHA1:
error = pw_gensalt(buf, _PASSWORD_LEN, "sha1", extra);
break;
case DO_BLF:
error = pw_gensalt(buf, _PASSWORD_LEN, "blowfish", extra);
break;
case DO_DES:
salt = extra;
break;
default:
pw_getconf(option, sizeof(option), "default", "localcipher");
opt = option;
key = strsep(&opt, ",");
error = pw_gensalt(buf, _PASSWORD_LEN, key, opt);
break;
}
if (error)
err(1, "Cannot generate salt");
(void)fputs(crypt(string, salt), stdout);
}
int
main(int argc, char **argv)
{
int opt;
int operation = -1;
int prompt = 0;
const char *extra = NULL; /* Store salt or number of rounds */
setprogname(argv[0]);
if (strcmp(getprogname(), "makekey") == 0)
operation = DO_MAKEKEY;
while ((opt = getopt(argc, argv, "kmpS:s:b:")) != -1) {
switch (opt) {
case 'k': /* Stdin/Stdout Unix crypt */
if (operation != -1 || prompt)
usage();
operation = DO_MAKEKEY;
break;
case 'm': /* MD5 password hash */
if (operation != -1)
usage();
operation = DO_MD5;
extra = NULL;
break;
case 'p':
if (operation == DO_MAKEKEY)
usage();
prompt = 1;
break;
case 'S': /* SHA1 password hash */
if (operation != -1)
usage();
operation = DO_SHA1;
extra = optarg;
break;
case 's': /* Unix crypt (DES) */
if (operation != -1 || optarg[0] == '$')
usage();
operation = DO_DES;
extra = optarg;
break;
case 'b': /* Blowfish password hash */
if (operation != -1)
usage();
operation = DO_BLF;
extra = optarg;
break;
default:
usage();
}
}
if (((argc - optind) < 1) || operation == DO_MAKEKEY) {
char line[LINE_MAX], *string;
if (prompt) {
string = getpass("Enter string: ");
print_passwd(string, operation, extra);
(void)fputc('\n', stdout);
} else {
/* Encrypt stdin to stdout. */
while (!feof(stdin) &&
(fgets(line, sizeof(line), stdin) != NULL)) {
/* Kill the whitesapce. */
string = trim(line);
if (*string == '\0')
continue;
print_passwd(string, operation, extra);
if (operation == DO_MAKEKEY) {
(void)fflush(stdout);
break;
}
(void)fputc('\n', stdout);
}
}
} else {
char *string;
/* can't combine -p with a supplied string */
if (prompt)
usage();
/* Perhaps it isn't worth worrying about, but... */
if ((string = strdup(argv[optind])) == NULL)
err(1, NULL);
/* Wipe the argument. */
(void)memset(argv[optind], 0, strlen(argv[optind]));
print_passwd(string, operation, extra);
(void)fputc('\n', stdout);
/* Wipe our copy, before we free it. */
(void)memset(string, 0, strlen(string));
free(string);
}
return 0;
}