142 lines
3.0 KiB
C
142 lines
3.0 KiB
C
/*
|
|
* Copyright (c) 1999
|
|
* Mark Murray. All rights reserved.
|
|
*
|
|
* 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 MARK MURRAY 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 MARK MURRAY 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 <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/types.h>
|
|
#include <string.h>
|
|
#include <libutil.h>
|
|
#include <unistd.h>
|
|
#include "crypt.h"
|
|
|
|
static const struct {
|
|
const char *const name;
|
|
char *(*const func)(const char *, const char *);
|
|
const char *const magic;
|
|
} crypt_types[] = {
|
|
#ifdef HAS_DES
|
|
{
|
|
"des",
|
|
crypt_des,
|
|
NULL
|
|
},
|
|
#endif
|
|
{
|
|
"md5",
|
|
crypt_md5,
|
|
"$1$"
|
|
},
|
|
#ifdef HAS_BLOWFISH
|
|
{
|
|
"blf",
|
|
crypt_blowfish,
|
|
"$2"
|
|
},
|
|
#endif
|
|
{
|
|
"nth",
|
|
crypt_nthash,
|
|
"$3$"
|
|
},
|
|
{
|
|
"sha256",
|
|
crypt_sha256,
|
|
"$5$"
|
|
},
|
|
{
|
|
"sha512",
|
|
crypt_sha512,
|
|
"$6$"
|
|
},
|
|
{
|
|
NULL,
|
|
NULL,
|
|
NULL
|
|
}
|
|
};
|
|
|
|
static int crypt_type = -1;
|
|
|
|
static void
|
|
crypt_setdefault(void)
|
|
{
|
|
char *def;
|
|
size_t i;
|
|
|
|
if (crypt_type != -1)
|
|
return;
|
|
def = auth_getval("crypt_default");
|
|
if (def == NULL) {
|
|
crypt_type = 0;
|
|
return;
|
|
}
|
|
for (i = 0; i < sizeof(crypt_types) / sizeof(crypt_types[0]) - 1; i++) {
|
|
if (strcmp(def, crypt_types[i].name) == 0) {
|
|
crypt_type = (int)i;
|
|
return;
|
|
}
|
|
}
|
|
crypt_type = 0;
|
|
}
|
|
|
|
const char *
|
|
crypt_get_format(void)
|
|
{
|
|
|
|
crypt_setdefault();
|
|
return (crypt_types[crypt_type].name);
|
|
}
|
|
|
|
int
|
|
crypt_set_format(const char *type)
|
|
{
|
|
size_t i;
|
|
|
|
crypt_setdefault();
|
|
for (i = 0; i < sizeof(crypt_types) / sizeof(crypt_types[0]) - 1; i++) {
|
|
if (strcmp(type, crypt_types[i].name) == 0) {
|
|
crypt_type = (int)i;
|
|
return (1);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
char *
|
|
crypt(const char *passwd, const char *salt)
|
|
{
|
|
size_t i;
|
|
|
|
crypt_setdefault();
|
|
for (i = 0; i < sizeof(crypt_types) / sizeof(crypt_types[0]) - 1; i++) {
|
|
if (crypt_types[i].magic != NULL && strncmp(salt,
|
|
crypt_types[i].magic, strlen(crypt_types[i].magic)) == 0)
|
|
return (crypt_types[i].func(passwd, salt));
|
|
}
|
|
return (crypt_types[crypt_type].func(passwd, salt));
|
|
}
|