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       xfm_magic - xfm’s magic file format


       xfm(1)  and  xfmtype(1) read files in this format to determine the mime
       type of a file, which again is used to determine what command  to  open
       it with.

       The  format  of the configuration file is the same as the magic(5) with
       the following additions and differences:

       include: directive
           If a line starts with include: the rest of the line is  treated  as
           filename  of  another  magic  file  to be read and processed before
           processing this file continues.

           Included files can be include files again.  Thus  a  user  specific
           file can
           include: /etc/X11/xfm/xfm_magic
           to get the system wide xfm defaults and this file again
           include: /usr/share/file/magic.mime
           to get the system wide system defaults.

       mode type field.
           Similar to long type, but offset is ignored.  The test is performed
           against the st_mode field of  the  stat  structure  obtained  using
           stat(2) system call. This allows testing for directories, fifos ...
           as well as for file permissions.

       lmode type field.
           Similar to mode type, but using lstat(2) instead of  stat(2).  This
           allows testing for symbolic links.

       regexp type field.
           The  value  field  must  be  a proper regular expression. The bytes
           starting at offset are matched against it. If the  match  succeeds,
           then  a  regsub(3)  is  performed  on  message  yielding  the final
           message. If the type field is of the form regexp&nnn where nnn is a
           positive  number,  then  that  number  controls  the amount of data
           scanned  for  the  matching,  otherwise  a  compile  defined  value
           (currently 256) is used.

       long and short byte order.
           xfmtype  always  reads longs and shorts using MSB-first order. This
           makes configuration files portable to all architectures,  but  some
           entries in original magic(5) files might be wrong.

       Continuation lines.
           If a line ends with a backslash character (\), it is continued with
           the following line. The maximum length of a line is 1024 characters
           (counting also characters in continuation lines).


              Default  location xfm(1) looks for a file of this format.  (Note
              that xfmtype(1) only  reads  files  specified  with  -m  on  the
              command line.)

              System wide default file if there is no user specific one.


       xfm(1), xfmtype(1), file(1), magic(5), stat(2), lstat(2).


       Copyright (c) 1995 CNM-US
       Copyright (c) 1995 Juan D. Martin


       Juan D. Martin (
       (but modified heavily by Bernhard R. Link)