MAKEMAP(8) Maintenance Commands and Procedures MAKEMAP(8)

NAME

makemap - create database maps for sendmail

SYNOPSIS

makemap [-N] [-d] [-f] [-o] [-r] [-s] [-v] [-C file]
[-c cachesize] [-D commentchar] [-e] [-l] [-t delim]
[-u] maptype mapname

DESCRIPTION

makemap creates the database maps used by the keyed map lookups in
sendmail(8). makemap reads from the standard input and outputs to the
specified mapname.


In all cases, makemap reads lines from the standard input consisting
of two words separated by whitespace. The first is the database key,
the second is the value. The value may contain %n strings to indicate
parameter substitution. Literal percents should be doubled (%%).
Blank lines and lines beginning with # are ignored.


Depending on how it is compiled, makemap handles up to three
different database formats, selected using the maptype parameter. See
OPERANDS.

OPTIONS

The following options are supported:

-c cachesize
Use the specified hash and B-Tree cache size
(cachesize).


-C file
Use the specified sendmail configuration file
(file) for looking up the TrustedUser option.


-d
Allow duplicate keys in the map. This is only
allowed on B-Tree format maps. If two identical
keys are read, both are inserted into the map.


-D commentchar
Use the specified character to indicate a comment
(which is ignored) instead of the default of '#'.


-e
Allow empty value (right hand side).


-f
Normally, all upper case letters in the key are
folded to lower case. This flag disables that
behavior. This is intended to mesh with the -f flag
in the K line in sendmail.cf. The value is never
case folded.


-l
List supported map types.


-N
Include the null byte that terminates strings in
the map. This must match the -N flag in the K line
in sendmail.cf.


-o
Append to an old file. This allows you to augment
an existing file.


-r
Allow replacement of existing keys. Normally
makemap complains if you repeat a key, and does not
do the insert.


-s
Ignore safety checks on maps being created. This
includes checking for hard or symbolic links in
world writable directories.


-t delim
Use the specified delimiter (delim) instead of
whitespace.


-u
Dump (unmap) the content of the database to
standard output. Note that, if the -t option is
also provided, the specified delimiter is used when
the content is dumped instead of whitespace.


-v
Verbosely print keys and values being added.

OPERANDS

The following operands are supported:

mapname
File name of the database map being created.


maptype
Specifies the database format. The following maptype
parameters are available:

dbm
Specifies DBM format maps.


btree
Specifies B-Tree format maps.


hash
Specifies hash format maps.

SEE ALSO

attributes(7), editmap(8), sendmail(8)

January 21, 2019 MAKEMAP(8)