libcrypt/crypt.c

   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
  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 }