1.\" $NetBSD: pwd_mkdb.8,v 1.9 1997/11/05 18:46:07 fair Exp $ 2.\" 3.\" Copyright (c) 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. All advertising materials mentioning features or use of this software 15.\" must display the following acknowledgement: 16.\" This product includes software developed by the University of 17.\" California, Berkeley and its contributors. 18.\" 4. Neither the name of the University nor the names of its contributors 19.\" may be used to endorse or promote products derived from this software 20.\" without specific prior written permission. 21.\" 22.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32.\" SUCH DAMAGE. 33.\" 34.\" from: @(#)pwd_mkdb.8 8.2 (Berkeley) 4/27/95 35.\" 36.Dd April 27, 1995 37.Dt PWD_MKDB 8 38.Os 39.Sh NAME 40.Nm pwd_mkdb 41.Nd "generate the password databases" 42.Sh SYNOPSIS 43.Nm 44.Op Fl p 45.Op Fl d Ar directory 46.Ar file 47.Sh DESCRIPTION 48.Nm 49creates 50.Xr db 3 51style secure and insecure databases for the specified file. 52These databases are then installed into 53.Dq Pa /etc/spwd.db 54and 55.Dq Pa /etc/pwd.db 56respectively. 57The file is installed into 58.Dq Pa /etc/master.passwd . 59The file must be in the correct format (see 60.Xr passwd 5 ) . 61It is important to note that the format used in this system is 62different from the historic Version 7 style format. 63.Pp 64The options are as follows: 65.Bl -tag -width flag 66.It Fl p 67Create a Version 7 style password file and install it into 68.Dq Pa /etc/passwd . 69.It Fl d Ar directory 70Change the root directory of the generated files from 71.Dq Pa / 72to 73.Ar directory . 74.El 75.Pp 76The two databases differ in that the secure version contains the user's 77encrypted password and the insecure version has an asterisk (``*''). 78.Pp 79The databases are used by the C library password routines (see 80.Xr getpwent 3 ) . 81.Pp 82.Nm 83exits zero on success, non-zero on failure. 84.Sh FILES 85.Bl -tag -width Pa -compact 86.It Pa /etc/master.passwd 87The current password file. 88.It Pa /etc/passwd 89A Version 7 format password file. 90.It Pa /etc/pwd.db 91The insecure password database file. 92.It Pa /etc/pwd.db.tmp 93A temporary file. 94.It Pa /etc/spwd.db 95The secure password database file. 96.It Pa /etc/spwd.db.tmp 97A temporary file. 98.El 99.Sh BUGS 100Because of the necessity for atomic update of the password files, 101.Nm 102uses 103.Xr rename 2 104to install them. 105This, however, requires that the file specified on the command line live 106on the same file system as the 107.Dq Pa /etc 108directory. 109.Pp 110There are the obvious races with multiple people running 111.Nm 112on different password files at the same time. 113The front-ends to 114.Xr chpass 1 , 115.Xr passwd 1 , 116and 117.Xr vipw 8 118handle the locking necessary to avoid this problem. 119.Sh COMPATIBILITY 120Previous versions of the system had a program similar to 121.Xr mkpasswd 8 , 122which built 123.Xr dbm 3 124style databases for the password file but depended on the calling programs 125to install them. 126The program was renamed in order that previous users of the program 127not be surprised by the changes in functionality. 128.Sh SEE ALSO 129.Xr chpass 1 , 130.Xr passwd 1 , 131.Xr db 3 , 132.Xr getpwent 3 , 133.Xr passwd 5 , 134.Xr vipw 8 135