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 "libcrypt.h"
  10
  11 char *crypt(const char *key, const char *salt)
  12 {
  13         const unsigned char *ukey = (const unsigned char *)key;
  14         const unsigned char *usalt = (const unsigned char *)salt;
  15
  16         if (salt[0] == '$') {
  17                 if (salt[1] && salt[2] == '$') { /* no blowfish '2X' here ATM */
  18                         if (*++salt == '1')
  19                                 return __md5_crypt(ukey, usalt);
  20 #ifdef __UCLIBC_HAS_SHA256_CRYPT_IMPL__
  21                         else if (*salt == '5')
  22                                 return __sha256_crypt(ukey, usalt);
  23 #endif
  24 #ifdef __UCLIBC_HAS_SHA512_CRYPT_IMPL__
  25                         else if (*salt == '6')
  26                                 return __sha512_crypt(ukey, usalt);
  27 #endif
  28                 }
  29                 /* __set_errno(EINVAL);*/ /* ENOSYS might be misleading */
  30                 return NULL;
  31         }
  32         return __des_crypt(ukey, usalt);
  33 }