libbsm/common/adr.c

	adr.c revision 7883e825152992a0f20c3f52f7c4bb902a56205c
/*
 * 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
 */
#ifndef lint
static char sccsid[] = "%Z%%M%  %I% %E% SMI";
#endif

/*
 * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

/*
 * Adr memory based encoding
 */

#include <sys/types.h>
#include <bsm/audit.h>
#include <bsm/libbsm.h>
#include <bsm/audit_record.h>

void
#ifdef __STDC__
adr_start(adr_t *adr, char *p)
#else
adr_start(adr, p)
    adr_t *adr;
    char *p;
#endif
{
    adr->adr_stream = p;
    adr->adr_now = p;
}

int
#ifdef __STDC__
adr_count(adr_t *adr)
#else
adr_count(adr)
    adr_t *adr;
#endif
{
    return (((intptr_t)adr->adr_now) - ((intptr_t)adr->adr_stream));
}


/*
 * adr_char - pull out characters
 */
void
#ifdef __STDC__
adr_char(adr_t *adr, char *cp, int count)
#else
adr_char(adr, cp, count)
    adr_t *adr;
    char *cp;
    int count;
#endif
{
    while (count-- > 0)
        *adr->adr_now++ = *cp++;
}

/*
 * adr_short - pull out shorts
 */
void
#ifdef __STDC__
adr_short(adr_t *adr, short *sp, int count)
#else
adr_short(adr, sp, count)
    adr_t *adr;
    short *sp;
    int count;
#endif
{

    for (; count-- > 0; sp++) {
        *adr->adr_now++ = (char)((*sp >> 8) & 0x00ff);
        *adr->adr_now++ = (char)(*sp & 0x00ff);
    }
}

/*
 * adr_int32 - pull out uint32
 */
#pragma weak adr_long = adr_int32
#ifdef __STDC__
void adr_long(adr_t *adr, int32_t *lp, int count);
void
adr_int32(adr_t *adr, int32_t *lp, int count)
#else
void adr_long();
void
adr_int32(adr, lp, count)
    adr_t *adr;
    int32_t *lp;
    int count;
#endif
{
    int i;      /* index for counting */
    uint32_t l;     /* value for shifting */

    for (; count-- > 0; lp++) {
        for (i = 0, l = *(uint32_t *)lp; i < 4; i++) {
            *adr->adr_now++ =
                (char)((uint32_t)(l & 0xff000000) >> 24);
            l <<= 8;
        }
    }
}

/*
 * adr_int64 - pull out uint64_t
 */
void
#ifdef __STDC__
adr_int64(adr_t *adr, int64_t *lp, int count)
#else
adr_int64(adr, lp, count)
    adr_t *adr;
    int64_t *lp;
    int count;
#endif
{
    int i;      /* index for counting */
    uint64_t l; /* value for shifting */

    for (; count-- > 0; lp++) {
        for (i = 0, l = *(uint64_t *)lp; i < 8; i++) {
            *adr->adr_now++ = (char)
                ((uint64_t)(l & 0xff00000000000000ULL) >> 56);
            l <<= 8;
        }
    }
}