gnu: Add sg3-utils.

* gnu/packages/scsi.scm: New file.
* gnu/local.mk (GNU_SYSTEM_MODULES): Add it.

Signed-off-by: Leo Famulari <leo@famulari.name>

gnu/local.mk

@@ -306,6 +306,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/scheme.scm			\
   %D%/packages/screen.scm			\
   %D%/packages/scribus.scm			\
+  %D%/packages/scsi.scm				\
   %D%/packages/sdl.scm				\
   %D%/packages/search.scm			\
   %D%/packages/serialization.scm		\

gnu/packages/scsi.scm

@@ -0,0 +1,54 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2016 Chris Marusich <cmmarusich@gmail.com>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages scsi)
+  #:use-module ((guix licenses)
+                #:select (gpl2+ bsd-3))
+  #:use-module (guix packages)
+  #:use-module (guix download)
+  #:use-module (guix build-system gnu))
+
+(define-public sg3-utils
+  (package
+    (name "sg3-utils")
+    (version "1.42")
+    (source (origin
+              (method url-fetch)
+              (uri (string-append "http://sg.danny.cz/sg/p/sg3_utils-"
+                                  version ".tar.xz"))
+              (sha256
+               (base32
+                "1fg71rj0f1gdjmkj0z8wlv46cf9lryjdyjkbi7fjmssgi5jyvblp"))))
+    (build-system gnu-build-system)
+    (home-page "http://sg.danny.cz/sg/sg3_utils.html")
+    (synopsis "SCSI device utilities")
+    (description
+     "sg3-utils is a collection of utilities for devices that use the Small
+Computer System Interface (SCSI) command set.  It includes utilities to read
+data from, write data to, control, modify, and query the state of SCSI
+devices.  For example, this package provides command-line tools to copy data
+based on @code{dd} syntax and semantics (called @code{sg_dd}, @code{sgp_dd}
+and @code{sgm_dd}), check INQUIRY data and VPD pages (@code{sg_inq}), check
+mode and log pages (@code{sginfo}, @code{sg_modes} and @code{sg_logs}), spin
+up and down disks (@code{sg_start}), do self tests (@code{sg_senddiag}), parse
+sense data (@code{sg_decode_sense}), and perform various other functions.  In
+addition, this package includes a library, called libsgutils, which can be
+used in C and C++ programs to interact with SCSI devices.")
+    ;; The libsgutils library itself is licensed under bsd-3.  Some tools are
+    ;; licensed under bsd-3, also.  Some tools are licensed under gpl2+.
+    (license (list gpl2+ bsd-3))))