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SIEVE-DUMP(1)				    Pigeonhole				    SIEVE-DUMP(1)

       sieve-dump - Pigeonhole's Sieve script binary dump tool

       sieve-dump [options] sieve-binary [out-file]

       The sieve-dump command is part of the Pigeonhole Project (pigeonhole(7)), which adds Sieve
       (RFC 5228) support to the Dovecot secure IMAP and POP3 server (dovecot(1)).

       Using the  sieve-dump  command,	Sieve  binaries,  which  are  produced	for  instance  by
       sievec(1),  can be transformed into a human-readable textual representation. This can pro-
       vide valuable insight in how the Sieve script is executed. This is also particularly  use-
       ful  to	view corrupt binaries that can result from bugs in the Sieve implementation. This
       tool is intended mainly for development purposes, so normally  system  administrators  and
       users will not need to use this tool.

       The format of the output is not explained here in detail, but it should be relatively easy
       to understand. The Sieve binaries comprise a set of data blocks, each of which can contain
       arbitrary  data.  For the base language implementation two blocks are used: the first con-
       taining a specification of all required language extensions and the second containing  the
       main  Sieve  program. Compiled Sieve programs are represented as flat byte code and there-
       fore the dump of the main program is a disassembly listing of the interpreter  operations.
       Extensions  can	define new operations and use additional blocks. Therefore, the output of
       sieve-dump depends greatly on the language extensions used when compiling the binary.

       -c config-file
	      Alternative Dovecot configuration file path.

       -D     Enable Sieve debugging.

       -h     Produce per-block hexdump  output  of  the  whole  binary  instead  of  the  normal
	      human-readable output.

       -x extensions
	      Set the available extensions. The parameter is a space-separated list of the active
	      extensions. By prepending the extension identifiers with + or -, extensions can  be
	      included	or  excluded  relative	to the configured set of active extensions. If no
	      extensions have a + or - prefix, only those extensions that are  explicitly  listed
	      will be enabled. Unknown extensions are ignored and a warning is produced.

	      For example -x "+imapflags -enotify" will enable the deprecated imapflags extension
	      and disable the enotify extension. The rest of the active extensions depends on the
	      sieve_extensions	and  sieve_global_extensions  settings.  By  default,  i.e.  when
	      sieve_extensions and sieve_global_extensions  remain  unconfigured,  all	supported
	      extensions  are available, except for deprecated extensions or those that are still
	      under development.

	      Specifies the Sieve binary file that needs to be dumped.

	      Specifies where the output must be written. This argument is optional. If  omitted,
	      the output is written to stdout.

       sieve-dump will exit with one of the following values:

       0   Dump was successful. (EX_OK, EXIT_SUCCESS)

       1   Operation failed. This is returned for almost all failures.	(EXIT_FAILURE)

       64  Invalid parameter given. (EX_USAGE)

	      Dovecot's main configuration file.

	      Sieve interpreter settings (included from Dovecot's main configuration file)

       Report  bugs,  including  doveconf  -n  output, to the Dovecot Mailing List <dovecot@dove-
       cot.org>.  Information about reporting  Dovecot	and  Pigeonhole  bugs  is  available  at:

       dovecot(1), dovecot-lda(1), sieve-filter(1), sieve-test(1), sievec(1), pigeonhole(7)

Pigeonhole for Dovecot v2.2		    2013-05-09				    SIEVE-DUMP(1)
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