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32 .\" @(#)pwd_mkdb.8 8.1 (Berkeley) 6/6/93
39 .Nd "generate the password databases"
49 style secure and insecure databases for the specified file.
50 These databases are then installed into
55 The file is installed into
56 .Dq Pa /etc/master.passwd .
57 The file must be in the correct format (see
59 It is important to note that the format used in this system is
60 different from the historic Version 7 style format.
62 The options are as follows:
65 Create a Version 7 style password file and install it into
68 Store databases into specified destination directory instead of
72 The two databases differ in that the secure version contains the user's
73 encrypted password and the insecure version has an asterisk (``*'')
75 The databases are used by the C library password routines (see
79 exits zero on success, non-zero on failure.
81 .Bl -tag -width Pa -compact
83 The insecure password database file.
84 .It Pa /etc/pwd.db.tmp
87 The secure password database file.
88 .It Pa /etc/spwd.db.tmp
90 .It Pa /etc/master.passwd
91 The current password file.
93 A Version 7 format password file.
96 Because of the necessity for atomic update of the password files,
101 This, however, requires that the file specified on the command line live
102 on the same file system as the
106 There are the obvious races with multiple people running
108 on different password files at the same time.
115 handle the locking necessary to avoid this problem.
117 Previous versions of the system had a program similar to
122 style databases for the password file but depended on the calling programs
124 The program was renamed in order that previous users of the program
125 not be surprised by the changes in functionality.