1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1984 AT&T */ 23 /* All Rights Reserved */ 24 25 #pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.5 */ 26 27 /*LINTLIBRARY*/ 28 /* 29 * convert base 64 ascii to long int 30 * char set is [./0-9A-Za-z] 31 * 32 */ 33 34 #define BITSPERCHAR 6 /* to hold entire character set */ 35 36 long 37 a64l(s) 38 register char *s; 39 { 40 register int i, c; 41 long lg = 0; 42 43 for (i = 0; (c = *s++) != '\0'; i += BITSPERCHAR) { 44 if (c > 'Z') 45 c -= 'a' - 'Z' - 1; 46 if (c > '9') 47 c -= 'A' - '9' - 1; 48 lg |= (long)(c - ('0' - 2)) << i; 49 } 50 return (lg); 51 } 52