1.\" Copyright (c) 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)pwd_mkdb.8 8.1 (Berkeley) 6/6/93 33.\" $Id: pwd_mkdb.8,v 1.5 1994/09/16 21:05:14 mycroft Exp $ 34.\" 35.Dd June 6, 1993 36.Dt PWD_MKDB 8 37.Os 38.Sh NAME 39.Nm pwd_mkdb 40.Nd "generate the password databases" 41.Sh SYNOPSIS 42.Nm pwd_mkdb 43.Op Fl p 44.Ar file 45.Sh DESCRIPTION 46.Nm Pwd_mkdb 47creates 48.Xr db 3 49style secure and insecure databases for the specified file. 50These databases are then installed into 51.Dq Pa /etc/spwd.db 52and 53.Dq Pa /etc/pwd.db 54respectively. 55The file is installed into 56.Dq Pa /etc/master.passwd . 57The file must be in the correct format (see 58.Xr passwd 5 ) . 59It is important to note that the format used in this system is 60different from the historic Version 7 style format. 61.Pp 62The options are as follows: 63.Bl -tag -width flag 64.It Fl p 65Create a Version 7 style password file and install it into 66.Dq Pa /etc/passwd . 67.El 68.Pp 69The two databases differ in that the secure version contains the user's 70encrypted password and the insecure version has an asterisk (``*'') 71.Pp 72The databases are used by the C library password routines (see 73.Xr getpwent 3 ) . 74.Pp 75.Nm Pwd_mkdb 76exits zero on success, non-zero on failure. 77.Sh FILES 78.Bl -tag -width Pa -compact 79.It Pa /etc/master.passwd 80The current password file. 81.It Pa /etc/passwd 82A Version 7 format password file. 83.It Pa /etc/pwd.db 84The insecure password database file. 85.It Pa /etc/pwd.db.tmp 86A temporary file. 87.It Pa /etc/spwd.db 88The secure password database file. 89.It Pa /etc/spwd.db.tmp 90A temporary file. 91.El 92.Sh BUGS 93Because of the necessity for atomic update of the password files, 94.Nm pwd_mkdb 95uses 96.Xr rename 2 97to install them. 98This, however, requires that the file specified on the command line live 99on the same file system as the 100.Dq Pa /etc 101directory. 102.Pp 103There are the obvious races with multiple people running 104.Nm pwd_mkdb 105on different password files at the same time. 106The front-ends to 107.Nm pwd_mkdb , 108.Xr chpass 1 , 109.Xr passwd 1 110and 111.Xr vipw 8 , 112handle the locking necessary to avoid this problem. 113.Sh COMPATIBILITY 114Previous versions of the system had a program similar to 115.Nm pwd_mkdb , 116.Xr mkpasswd 8 , 117which built 118.Xr dbm 3 119style databases for the password file but depended on the calling programs 120to install them. 121The program was renamed in order that previous users of the program 122not be surprised by the changes in functionality. 123.Sh SEE ALSO 124.Xr chpass 1 , 125.Xr passwd 1 , 126.Xr db 3 , 127.Xr getpwent 3 , 128.Xr passwd 5 , 129.Xr vipw 8 130