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fileio: Unify key & cert loading

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Rather than duplicating the key & certificate loading in each tool,
unify it in a fileio object.

Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
This commit is contained in:
Jeremy Kerr 2012-08-03 10:36:38 +08:00
parent d27647ba69
commit d19b993024
6 changed files with 138 additions and 88 deletions
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80
fileio.c Normal file
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/*
* Copyright (C) 2012 Jeremy Kerr <jeremy.kerr@canonical.com>
*
* This program 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.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the OpenSSL
* library under certain conditions as described in each individual source file,
* and distribute linked combinations including the two.
*
* You must obey the GNU General Public License in all respects for all
* of the code used other than OpenSSL. If you modify file(s) with this
* exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do
* so, delete this exception statement from your version. If you delete
* this exception statement from all source files in the program, then
* also delete it here.
*/
#include <stdio.h>
#include <openssl/bio.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include "fileio.h"
EVP_PKEY *fileio_read_pkey(const char *filename)
{
EVP_PKEY *key = NULL;
BIO *bio;
bio = BIO_new_file(filename, "r");
if (!bio)
goto out;
key = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL);
out:
BIO_free_all(bio);
if (!key) {
fprintf(stderr, "Can't load key from file '%s'\n", filename);
ERR_print_errors_fp(stderr);
}
return key;
}
X509 *fileio_read_cert(const char *filename)
{
X509 *cert = NULL;
BIO *bio;
bio = BIO_new_file(filename, "r");
if (!bio)
goto out;
cert = PEM_read_bio_X509(bio, NULL, NULL, NULL);
out:
BIO_free_all(bio);
if (!cert) {
fprintf(stderr, "Can't load certificate from file '%s'\n",
filename);
ERR_print_errors_fp(stderr);
}
return cert;
}