NAME
runcrypt - Encrypt and mail output from command in arguments
USAGE
runcrypt
[--sign[=(1|0)]
[--encrypt[=(1|0)]
[--keyid KEYID]
[--passfile PATH]
[--mailto RECIPIENT]
[--name NAME]
COMMAND [ARG1 ...]
DESCRIPTION
This program applies Mail::Run::Crypt
to run a command and send any output or error content to the specified address. More information is available in the documentation for that module.
REQUIRED ARGUMENTS
The arguments beyond the options are used as the command name to run:
runcrypt rsync -a /mnt/a remote:mnt/b
OPTIONS
--sign
-
Whether to sign the output. This defaults to off. A key ID and passphrase file will need to be provided for signing to work.
--encrypt
-
Whether to encrypt the output to the recipient. This defaults to on.
--keyid
-
The GnuPG key ID that should be used to sign and encrypt the messages. This defaults to the value of the environment variable
RUNCRYPT_KEYID
.It is strongly recommended that a dedicated key and passphrase be used for signatures if this is needed. You should carefully consider the consequences of a compromised key.
--passfile
-
Path to a filename that should be read to get the key passphrase for signing. This defaults to the value of the environment variable
RUNCRYPT_PASSFILE
.It is strongly recommended, but not enforced by this program, that this file have strict permissions (not group or world-readable).
By design, there is no way to specify the passphrase directly as an argument. This has too many negative security implications.
--mailto
-
The recipient address for the encryption portion of the email. This defaults to the value of the environment variable
RUNCRYPT_MAILTO
if that is set, orMAILTO
failing that, to make it suitable for use in acrontab(5)
file. --name
-
The name for this instance of the module, which will be used as the first word of the subject line of any email messages it sends. This defaults to
runcrypt
, which is probably good enough in most cases.
DIAGNOSTICS
- failed stdout usage write
-
Usage information could not be written to the standard output stream.
- failed stderr usage write
-
Usage information could not be written to the standard error stream.
- passfile %s open failed: %s
-
The specified passphrase file could not be opened. This is a fatal error.
- passfile %s close failed: %s
-
The specified passphrase file could not be closed. This is not a fatal error.
EXIT STATUS
The program exits with the same exit value of the command that it ran, or 127 if the command could not be run at all. See the bail()
method in Mail::Run::Crypt
.
CONFIGURATION
You will need to have a functioning GnuPG public key setup for this to work, including the secret key. You should definitely not use your personal key; generate one specifically for mail signing and encryption instead.
DEPENDENCIES
Perl 5.10 or newer
Carp
Getopt::Long::Descriptive
Mail::Run::Crypt
INCOMPATIBILITIES
This module uses Mail::GnuPG
and other GPG-specific code, so it won't work with any other OpenPGP implementations.
BUGS AND LIMITATIONS
Definitely.
AUTHOR
Tom Ryder <tom@sanctum.geek.nz>
LICENSE AND COPYRIGHT
Copyright (C) 2017 Tom Ryder
This program is free software; you can redistribute it and/or modify it under the terms of the Artistic License (2.0). You may obtain a copy of the full license at:
http://www.perlfoundation.org/artistic_license_2_0
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This license includes the non-exclusive, worldwide, free-of-charge patent license to make, have made, use, offer to sell, sell, import and otherwise transfer the Package with respect to any patent claims licensable by the Copyright Holder that are necessarily infringed by the Package. If you institute patent litigation (including a cross-claim or counterclaim) against any party alleging that the Package constitutes direct or contributory patent infringement, then this Artistic License to you shall terminate on the date that such litigation is filed.
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