diff options
Diffstat (limited to 'guix/hash.scm')
| -rw-r--r-- | guix/hash.scm | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/guix/hash.scm b/guix/hash.scm index 773b9d4777..39834043e1 100644 --- a/guix/hash.scm +++ b/guix/hash.scm @@ -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") |