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hash: Initialize libgcrypt before use.

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Fixes <http://bugs.gnu.org/19677>.
Reported by Mark H Weaver <mhw@netris.org>.

* guix/hash.scm: Use (guix gcrypt).
  (sha256, open-sha256-md, md-write, md-close): Use 'libgcrypt-func'
  instead of 'dynamic-func'.
This commit is contained in:
Ludovic Courtès 2015-01-26 21:42:23 +01:00
parent 4862bc4a1a
commit 19a454448b
1 changed files with 7 additions and 12 deletions
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19
guix/hash.scm
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@ -1,5 +1,5 @@
;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2012, 2013, 2014 Ludovic Courtès <ludo@gnu.org>
;;; Copyright © 2012, 2013, 2014, 2015 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of GNU Guix.
;;;
@ -17,7 +17,7 @@
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (guix hash)
#:use-module (guix config)
#:use-module (guix gcrypt)
#:use-module (rnrs bytevectors)
#:use-module (rnrs io ports)
#:use-module (system foreign)
@ -46,8 +46,7 @@
(define sha256
(let ((hash (pointer->procedure void
(dynamic-func "gcry_md_hash_buffer"
(dynamic-link %libgcrypt))
(libgcrypt-func "gcry_md_hash_buffer")
`(,int * * ,size_t))))
(lambda (bv)
"Return the SHA256 of BV as a bytevector."
@ -58,8 +57,7 @@
(define open-sha256-md
(let ((open (pointer->procedure int
(dynamic-func "gcry_md_open"
(dynamic-link %libgcrypt))
(libgcrypt-func "gcry_md_open")
`(* ,int ,unsigned-int))))
(lambda ()
(let* ((md (bytevector->pointer (make-bytevector (sizeof '*))))
@ -70,20 +68,17 @@
(define md-write
(pointer->procedure void
(dynamic-func "gcry_md_write"
(dynamic-link %libgcrypt))
(libgcrypt-func "gcry_md_write")
`(* * ,size_t)))
(define md-read
(pointer->procedure '*
(dynamic-func "gcry_md_read"
(dynamic-link %libgcrypt))
(libgcrypt-func "gcry_md_read")
`(* ,int)))
(define md-close
(pointer->procedure void
(dynamic-func "gcry_md_close"
(dynamic-link %libgcrypt))
(libgcrypt-func "gcry_md_close")
'(*)))