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/* vi: set sw=4 ts=4: */
/*
* crypt() for uClibc
* Copyright (C) 2000-2006 by Erik Andersen <andersen@uclibc.org>
* Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
*/
#define __FORCE_GLIBC
#include <crypt.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "libcrypt.h"
typedef char *(*crypt_impl_f)(const unsigned char *pw, const unsigned char *salt);
static const struct {
const char *salt_pfx;
const crypt_impl_f crypt_impl;
} crypt_impl_tab[] = {
{ "$1$", __md5_crypt },
#ifdef __UCLIBC_HAS_SHA256_CRYPT_IMPL__
{ "$5$", __sha256_crypt },
#endif
#ifdef __UCLIBC_HAS_SHA512_CRYPT_IMPL__
{ "$6$", __sha512_crypt },
#endif
{ NULL, __des_crypt },
};
char *crypt(const char *key, const char *salt)
{
const unsigned char *ukey = (const unsigned char *)key;
const unsigned char *usalt = (const unsigned char *)salt;
size_t i;
for (i = 0; i < ARRAY_SIZE(crypt_impl_tab); i++) {
if (crypt_impl_tab[i].salt_pfx != NULL &&
strncmp(crypt_impl_tab[i].salt_pfx, salt, strlen(crypt_impl_tab[i].salt_pfx)))
continue;
return crypt_impl_tab[i].crypt_impl(ukey, usalt);
}
/* no crypt implementation was found, set errno to ENOSYS and return NULL */
__set_errno(ENOSYS);
return NULL;
}
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