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+/*
+ * UFC-crypt: ultra fast crypt(3) implementation
+ *
+ * Copyright (C) 1991, 92, 93, 96, 97, 98, 2000 Free Software Foundation, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with the GNU C Library; see the file COPYING.LIB.  If not,
+ * write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ * @(#)crypt.h	1.5 12/20/96
+ *
+ */
+
+#ifndef _CRYPT_H
+#define _CRYPT_H	1
+
+#include <features.h>
+
+__BEGIN_DECLS
+
+/* Encrypt at most 8 characters from KEY using salt to perturb DES.  */
+extern char *crypt (__const char *__key, __const char *__salt);
+
+/* Setup DES tables according KEY.  */
+extern void setkey (__const char *__key);
+
+/* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
+   block in place.  */
+extern void encrypt (char *__block, int __edflag);
+
+#ifdef __USE_GNU
+/* Reentrant versions of the functions above.  The additional argument
+   points to a structure where the results are placed in.  */
+struct crypt_data
+  {
+    char keysched[16 * 8];
+    char sb0[32768];
+    char sb1[32768];
+    char sb2[32768];
+    char sb3[32768];
+    /* end-of-aligment-critical-data */
+    char crypt_3_buf[14];
+    char current_salt[2];
+    long int current_saltbits;
+    int  direction, initialized;
+  };
+
+extern char *crypt_r (__const char *__key, __const char *__salt,
+		      struct crypt_data * __restrict __data);
+
+extern void setkey_r (__const char *__key,
+		      struct crypt_data * __restrict __data);
+
+extern void encrypt_r (char *__block, int __edflag,
+		       struct crypt_data * __restrict __data);
+#endif
+
+__END_DECLS
+
+#endif	/* crypt.h */