diff options
Diffstat (limited to 'guix/hash.scm')
| -rw-r--r-- | guix/hash.scm | 26 |
1 files changed, 18 insertions, 8 deletions
diff --git a/guix/hash.scm b/guix/hash.scm index 44e4472580..39834043e1 100644 --- a/guix/hash.scm +++ b/guix/hash.scm @@ -1,5 +1,5 @@ ;;; GNU Guix --- Functional package management for GNU -;;; Copyright © 2012, 2013, 2014, 2015, 2016 Ludovic Courtès <ludo@gnu.org> +;;; Copyright © 2012, 2013, 2014, 2015, 2016, 2018 Ludovic Courtès <ludo@gnu.org> ;;; ;;; This file is part of GNU Guix. ;;; @@ -23,7 +23,9 @@ #:use-module (system foreign) #:use-module ((guix build utils) #:select (dump-port)) #:use-module (srfi srfi-11) - #:export (sha256 + #:use-module (srfi srfi-26) + #:export (sha1 + sha256 open-sha256-port port-sha256 file-sha256 @@ -44,17 +46,26 @@ ;; Value as of Libgcrypt 1.5.2. (identifier-syntax 8)) -(define sha256 +(define-syntax GCRY_MD_SHA1 + (identifier-syntax 2)) + +(define bytevector-hash (let ((hash (pointer->procedure void (libgcrypt-func "gcry_md_hash_buffer") `(,int * * ,size_t)))) - (lambda (bv) - "Return the SHA256 of BV as a bytevector." - (let ((digest (make-bytevector (/ 256 8)))) - (hash GCRY_MD_SHA256 (bytevector->pointer digest) + (lambda (bv type size) + "Return the hash TYPE, of SIZE bytes, of BV as a bytevector." + (let ((digest (make-bytevector size))) + (hash type (bytevector->pointer digest) (bytevector->pointer bv) (bytevector-length bv)) digest)))) +(define sha1 + (cut bytevector-hash <> GCRY_MD_SHA1 20)) + +(define sha256 + (cut bytevector-hash <> GCRY_MD_SHA256 (/ 256 8))) + (define open-sha256-md (let ((open (pointer->procedure int (libgcrypt-func "gcry_md_open") @@ -159,7 +170,6 @@ data read from PORT. The thunk always returns the same value." (define (unbuffered port) ;; Guile <= 2.0.9 does not support 'setvbuf' on custom binary input ports. - ;; If you get a wrong-type-arg error here, the fix is to upgrade Guile. :-) (setvbuf port _IONBF) port) |