diff --git a/ap/libc/glibc/glibc-2.23/crypt/crypt.c b/ap/libc/glibc/glibc-2.23/crypt/crypt.c
new file mode 100644
index 0000000..e51fbfd
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/crypt/crypt.c
@@ -0,0 +1,115 @@
+/*
+ * UFC-crypt: ultra fast crypt(3) implementation
+ *
+ * Copyright (C) 1991-2016 Free Software Foundation, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; see the file COPYING.LIB.  If not,
+ * see <http://www.gnu.org/licenses/>.
+ *
+ * @(#)crypt.c	2.25 12/20/96
+ *
+ * Semiportable C version
+ *
+ */
+
+#include "crypt-private.h"
+
+#ifdef _UFC_32_
+
+/*
+ * 32 bit version
+ */
+
+#define SBA(sb, v) (*(long32*)((char*)(sb)+(v)))
+
+void
+_ufc_doit_r (ufc_long itr, struct crypt_data * __restrict __data,
+	     ufc_long *res)
+{
+  int i;
+  long32 s, *k;
+  long32 *sb01 = (long32*)__data->sb0;
+  long32 *sb23 = (long32*)__data->sb2;
+  long32 l1, l2, r1, r2;
+
+  l1 = (long32)res[0]; l2 = (long32)res[1];
+  r1 = (long32)res[2]; r2 = (long32)res[3];
+
+  while(itr--) {
+    k = (long32*)__data->keysched;
+    for(i=8; i--; ) {
+      s = *k++ ^ r1;
+      l1 ^= SBA(sb01, s & 0xffff); l2 ^= SBA(sb01, (s & 0xffff)+4);
+      l1 ^= SBA(sb01, s >>= 16  ); l2 ^= SBA(sb01, (s         )+4);
+      s = *k++ ^ r2;
+      l1 ^= SBA(sb23, s & 0xffff); l2 ^= SBA(sb23, (s & 0xffff)+4);
+      l1 ^= SBA(sb23, s >>= 16  ); l2 ^= SBA(sb23, (s         )+4);
+
+      s = *k++ ^ l1;
+      r1 ^= SBA(sb01, s & 0xffff); r2 ^= SBA(sb01, (s & 0xffff)+4);
+      r1 ^= SBA(sb01, s >>= 16  ); r2 ^= SBA(sb01, (s         )+4);
+      s = *k++ ^ l2;
+      r1 ^= SBA(sb23, s & 0xffff); r2 ^= SBA(sb23, (s & 0xffff)+4);
+      r1 ^= SBA(sb23, s >>= 16  ); r2 ^= SBA(sb23, (s         )+4);
+    }
+    s=l1; l1=r1; r1=s; s=l2; l2=r2; r2=s;
+  }
+  res[0] = l1; res[1] = l2; res[2] = r1; res[3] = r2;
+}
+
+#endif
+
+#ifdef _UFC_64_
+
+/*
+ * 64 bit version
+ */
+
+#define SBA(sb, v) (*(long64*)((char*)(sb)+(v)))
+
+void
+_ufc_doit_r (ufc_long itr, struct crypt_data * __restrict __data,
+	     ufc_long *res)
+{
+  int i;
+  long64 l, r, s, *k;
+  long64 *sb01 = (long64*)__data->sb0;
+  long64 *sb23 = (long64*)__data->sb2;
+
+  l = (((long64)res[0]) << 32) | ((long64)res[1]);
+  r = (((long64)res[2]) << 32) | ((long64)res[3]);
+
+  while(itr--) {
+    k = (long64*)__data->keysched;
+    for(i=8; i--; ) {
+      s = *k++ ^ r;
+      l ^= SBA(sb23, (s       ) & 0xffff);
+      l ^= SBA(sb23, (s >>= 16) & 0xffff);
+      l ^= SBA(sb01, (s >>= 16) & 0xffff);
+      l ^= SBA(sb01, (s >>= 16)         );
+
+      s = *k++ ^ l;
+      r ^= SBA(sb23, (s       ) & 0xffff);
+      r ^= SBA(sb23, (s >>= 16) & 0xffff);
+      r ^= SBA(sb01, (s >>= 16) & 0xffff);
+      r ^= SBA(sb01, (s >>= 16)         );
+    }
+    s=l; l=r; r=s;
+  }
+
+  res[0] = l >> 32; res[1] = l & 0xffffffff;
+  res[2] = r >> 32; res[3] = r & 0xffffffff;
+}
+
+#endif