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.\" @(#)pwd_mkdb.8 8.1 (Berkeley) 6/6/93 33.\" 34.Dd June 6, 1993 35.Dt PWD_MKDB 8 36.Os 37.Sh NAME 38.Nm pwd_mkdb 39.Nd "generate the password databases" 40.Sh SYNOPSIS 41.Nm pwd_mkdb 42.Op Fl c 43.Op Fl p 44.Op Fl d Ar directory 45.Ar file 46.Sh DESCRIPTION 47.Nm Pwd_mkdb 48creates 49.Xr db 3 50style secure and insecure databases for the specified file. 51These databases are then installed into 52.Dq Pa /etc/spwd.db 53and 54.Dq Pa /etc/pwd.db 55respectively. 56The file is installed into 57.Dq Pa /etc/master.passwd . 58The file must be in the correct format (see 59.Xr passwd 5 ) . 60It is important to note that the format used in this system is 61different from the historic Version 7 style format. 62.Pp 63The options are as follows: 64.Bl -tag -width flag 65.It Fl c 66Check if the password file is in the correct format. Do not 67change, add, or remove any files. 68.It Fl p 69Create a Version 7 style password file and install it into 70.Dq Pa /etc/passwd . 71.It Fl d 72Store databases into specified destination directory instead of 73.Dq Pa /etc . 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 Pwd_mkdb 83exits zero on success, non-zero on failure. 84.Sh FILES 85.Bl -tag -width Pa -compact 86.It Pa /etc/pwd.db 87The insecure password database file. 88.It Pa /etc/pwd.db.tmp 89A temporary file. 90.It Pa /etc/spwd.db 91The secure password database file. 92.It Pa /etc/spwd.db.tmp 93A temporary file. 94.It Pa /etc/master.passwd 95The current password file. 96.It Pa /etc/passwd 97A Version 7 format password file. 98.El 99.Sh BUGS 100Because of the necessity for atomic update of the password files, 101.Nm pwd_mkdb 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 pwd_mkdb 112on different password files at the same time. 113The front-ends to 114.Nm pwd_mkdb , 115.Xr chpass 1 , 116.Xr passwd 1 117and 118.Xr vipw 8 , 119handle the locking necessary to avoid this problem. 120.Sh COMPATIBILITY 121Previous versions of the system had a program similar to 122.Nm pwd_mkdb , 123.Xr mkpasswd 8 , 124which built 125.Xr dbm 3 126style databases for the password file but depended on the calling programs 127to install them. 128The program was renamed in order that previous users of the program 129not be surprised by the changes in functionality. 130.Sh SEE ALSO 131.Xr chpass 1 , 132.Xr passwd 1 , 133.Xr db 3 , 134.Xr getpwent 3 , 135.Xr passwd 5 , 136.Xr vipw 8 137