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/*
* Copyright (c) 2014 embedded brains GmbH. All rights reserved.
*
* embedded brains GmbH
* Dornierstr. 4
* 82178 Puchheim
* Germany
* <info@embedded-brains.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <crypt.h>
#include <string.h>
static char *
cf_default_func(const char *pw, const char *salt, struct crypt_data *data)
{
(void)salt;
strncpy(&data->buffer[0], pw, sizeof(data->buffer) - 1);
data->buffer[sizeof(data->buffer) - 1] = '\0';
return (&data->buffer[0]);
}
static struct crypt_format cf_default =
CRYPT_FORMAT_INITIALIZER(cf_default_func, NULL);
static SLIST_HEAD(, crypt_format) cf_head = {
&cf_default
};
void crypt_add_format(struct crypt_format *cf)
{
if (cf->link.sle_next == NULL)
SLIST_INSERT_HEAD(&cf_head, cf, link);
}
char *
crypt_r(const char *passwd, const char *salt, struct crypt_data *data)
{
const struct crypt_format *cf;
SLIST_FOREACH(cf, &cf_head, link)
if (cf->magic != NULL && strstr(salt, cf->magic) == salt)
return (cf->func(passwd, salt, data));
cf = SLIST_FIRST(&cf_head);
return (cf->func(passwd, salt, data));
}
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