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-rw-r--r--stdlib/a64l.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/stdlib/a64l.c b/stdlib/a64l.c
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+++ 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;
+}