usr/src/lib/libc/port/gen/a64l.c
changeset 0 68f95e015346
child 6812 febeba71273d
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usr/src/lib/libc/port/gen/a64l.c	Tue Jun 14 00:00:00 2005 -0700
@@ -0,0 +1,61 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+/*	Copyright (c) 1988 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+
+/*
+ * convert base 64 ascii to long int
+ * char set is [./0-9A-Za-z]
+ *
+ */
+#pragma weak a64l = _a64l
+#include "synonyms.h"
+#include <sys/types.h>
+#include <stdlib.h>
+
+#define	BITSPERCHAR	6 /* to hold entire character set */
+#define	MAXBITS		(6 * BITSPERCHAR) /* maximum number */
+			/* of 6 chars converted */
+
+long
+a64l(const char *s)
+{
+	int i, c;
+	int lg = 0;
+
+	for (i = 0; ((c = *s++) != '\0') && (i < MAXBITS); i += BITSPERCHAR) {
+		if (c > 'Z')
+			c -= 'a' - 'Z' - 1;
+		if (c > '9')
+			c -= 'A' - '9' - 1;
+		lg |= (c - ('0' - 2)) << i;
+	}
+	return ((long)lg);
+}