makemap (ADMN)

NAME

     makemap - create database maps for sendmail

SYNOPSIS

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

DESCRIPTION

     Makemap creates the database maps  used  by  the  keyed  map
     lookups  in sendmail(ADMN). It reads input from the standard
     input and outputs them to the indicated mapname.

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

     dbm  DBM format maps. This requires the ndbm(NS) library.

     btree
          B-Tree format maps. This requires the new  Berkeley  DB
          library.

     hash Hash format maps. This also requires  the  Berkeley  DB
          library.

     In all cases, makemap reads lines from  the  standard  input
     consisting  of two words separated by white space. 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.

     Notice: do not use makemap to create the aliases data  base,
     but newaliases which puts a special token into the data base
     that is required by sendmail.

     If the TrustedUser option is set in the sendmail  configura-
     tion  file  and  makemap  is  invoked as root, the generated
     files will be owned by the specified TrustedUser.

  Flags
     -C   Use the specified sendmail configuration file for look-
          ing up the TrustedUser option.

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

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

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

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

     -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 behaviour. 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.

     -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   Use the specified delimiter instead of white space.

     -u   dump (unmap) the content of the  database  to  standard
          output.

     -v   Verbosely print what it is doing.

SEE ALSO

     sendmail(ADMN), newaliases(ADMN)

HISTORY

     The makemap command appeared in 4.4BSD.