mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-11-15 03:15:09 -05:00
0c5028faea
Before that, calls to 'HashSink::currentHash()' would eventually lead to
a segfault because the underlying gcrypt handle has been closed. (Note
that this method is only used via 'importPaths' and 'exportPath', though.)
* nix/libutil/gcrypt-hash.hh (struct guix_hash_context): Add a
constructor and a copy constructor; move out of 'extern "C"'.
* nix/libutil/gcrypt-hash.cc (guix_hash_final): Clear 'md_handle' upon
exit.
* nix/sync-with-upstream (top_srcdir): Change hash.{cc,hh} to read
'struct Ctx' instead of 'union Ctx'.
51 lines
1.4 KiB
C++
51 lines
1.4 KiB
C++
/* GNU Guix --- Functional package management for GNU
|
|
Copyright (C) 2012, 2013 Ludovic Courtès <ludo@gnu.org>
|
|
|
|
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/>. */
|
|
|
|
#include <config.h>
|
|
|
|
#include <gcrypt-hash.hh>
|
|
#include <assert.h>
|
|
|
|
extern "C" {
|
|
|
|
void
|
|
guix_hash_init (struct guix_hash_context *ctx, int algo)
|
|
{
|
|
gcry_error_t err;
|
|
|
|
err = gcry_md_open (&ctx->md_handle, algo, 0);
|
|
assert (err == GPG_ERR_NO_ERROR);
|
|
}
|
|
|
|
void
|
|
guix_hash_update (struct guix_hash_context *ctx, const void *buffer, size_t len)
|
|
{
|
|
gcry_md_write (ctx->md_handle, buffer, len);
|
|
}
|
|
|
|
void
|
|
guix_hash_final (void *resbuf, struct guix_hash_context *ctx,
|
|
int algo)
|
|
{
|
|
memcpy (resbuf, gcry_md_read (ctx->md_handle, algo),
|
|
gcry_md_get_algo_dlen (algo));
|
|
gcry_md_close (ctx->md_handle);
|
|
ctx->md_handle = NULL;
|
|
}
|
|
|
|
}
|