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-rw-r--r--stdlib/a64l.c54
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diff --git a/stdlib/a64l.c b/stdlib/a64l.c
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+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+The GNU C 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.
+
+The GNU C 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.  */
+
+#include <stdlib.h>
+
+long
+a64l (string)
+     const char *string;
+{
+  int cnt;
+  long result = 0l;
+
+  for (cnt = 0; cnt < 6; ++cnt)
+    {
+      result <<= 6;
+      switch (string[cnt])
+	{
+	case '.':
+	  break;
+	case '/':
+	  result |= 1;
+	  break;
+	case '0' ... '9':
+	  result |= 2 + string[cnt] - '0';
+	  break;
+	case 'A' ... 'Z':
+	  result |= 12 + string[cnt] - 'A';
+	  break;
+	case 'a' ... 'z':
+	  result |= 38 + string[cnt] - 'a';
+	  break;
+	default:
+	  return result >> 6;
+	}
+    }
+
+  return result;
+}