1 /*
2  * crypt() for uClibc
3  * Copyright (C) 2000-2006 by Erik Andersen <andersen@uclibc.org>
4  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
5  */
6 
7 #include <unistd.h>
8 #include <crypt.h>
9 #include <errno.h>
10 #include "libcrypt.h"
11 
crypt(const char * key,const char * salt)12 char *crypt(const char *key, const char *salt)
13 {
14 	const unsigned char *ukey = (const unsigned char *)key;
15 	const unsigned char *usalt = (const unsigned char *)salt;
16 
17 	if (salt[0] == '$') {
18 		if (salt[1] && salt[2] == '$') { /* no blowfish '2X' here ATM */
19 			if (*++salt == '1')
20 				return __md5_crypt(ukey, usalt);
21 #ifdef __UCLIBC_HAS_SHA256_CRYPT_IMPL__
22 			else if (*salt == '5')
23 				return __sha256_crypt(ukey, usalt);
24 #endif
25 #ifdef __UCLIBC_HAS_SHA512_CRYPT_IMPL__
26 			else if (*salt == '6')
27 				return __sha512_crypt(ukey, usalt);
28 #endif
29 		}
30 		__set_errno(EINVAL);
31 		return NULL;
32 	}
33 	return __des_crypt(ukey, usalt);
34 }
35