2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A
2N/A/*
2N/A * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A/* Copyright (c) 1988 AT&T */
2N/A/* All Rights Reserved */
2N/A
2N/A#pragma ident "%Z%%M% %I% %E% SMI"
2N/A
2N/A/*
2N/A * convert long int to base 64 ascii
2N/A * char set is [./0-9A-Za-z]
2N/A * two's complement negatives are assumed,
2N/A * but no assumptions are made about sign propagation on right shift
2N/A *
2N/A */
2N/A
2N/A#include "lint.h"
2N/A#include "mtlib.h"
2N/A#include "libc.h"
2N/A#include <values.h>
2N/A#include <synch.h>
2N/A#include <thread.h>
2N/A#include <stdlib.h>
2N/A#include <sys/types.h>
2N/A#include "tsd.h"
2N/A
2N/A#define BITSPERCHAR 6 /* to hold entire character set */
2N/A#define BITSUSED (BITSPERBYTE * sizeof (int))
2N/A#define NMAX ((BITSUSED + BITSPERCHAR - 1)/BITSPERCHAR)
2N/A#define SIGN (-(1 << (BITSUSED - BITSPERCHAR - 1)))
2N/A#define CHARMASK ((1 << BITSPERCHAR) - 1)
2N/A#define WORDMASK ((1 << ((NMAX - 1) * BITSPERCHAR)) - 1)
2N/A
2N/Achar *
2N/Al64a(long value)
2N/A{
2N/A /* XPG4: only the lower 32 bits are used */
2N/A int lg = (int)value;
2N/A char *buf = tsdalloc(_T_L64A, NMAX + 1, NULL);
2N/A char *s = buf;
2N/A
2N/A if (buf == NULL)
2N/A return (NULL);
2N/A
2N/A while (lg != 0) {
2N/A
2N/A int c = (lg & CHARMASK) + ('0' - 2);
2N/A
2N/A if (c > '9')
2N/A c += 'A' - '9' - 1;
2N/A if (c > 'Z')
2N/A c += 'a' - 'Z' - 1;
2N/A *s++ = (char)c;
2N/A /* fill high-order CHAR if negative */
2N/A /* but suppress sign propagation */
2N/A lg = ((lg < 0) ? (lg >> BITSPERCHAR) | SIGN :
2N/A lg >> BITSPERCHAR) & WORDMASK;
2N/A }
2N/A *s = '\0';
2N/A return (buf);
2N/A}