sys/common/setsockopt.c

	setsockopt.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * 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 1989 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */
#pragma ident   "%Z%%M% %I% %E% SMI"

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>

/* multicast setsockopts */
#define SUNOS4X_IP_MULTICAST_IF     2
#define SUNOS4X_IP_MULTICAST_TTL    3
#define SUNOS4X_IP_MULTICAST_LOOP   4
#define SUNOS4X_IP_ADD_MEMBERSHIP   5
#define SUNOS4X_IP_DROP_MEMBERSHIP  6
#define SUNOS5X_IP_MULTICAST_IF     0x10
#define SUNOS5X_IP_MULTICAST_TTL    0x11
#define SUNOS5X_IP_MULTICAST_LOOP   0x12
#define SUNOS5X_IP_ADD_MEMBERSHIP   0x13
#define SUNOS5X_IP_DROP_MEMBERSHIP  0x14

extern int  errno;

setsockopt(s, level, optname, optval, optlen)
register int    s;
register int    level;
register int    optname;
register char   *optval;
register int    optlen;
{
    int a;

    if (level == SOL_SOCKET)
        switch (optname) {
        case SO_DONTLINGER: {
            struct linger ling;
            ling.l_onoff = 0;
            if ((a = _setsockopt(s, level, SO_LINGER, &ling,
                sizeof (struct linger))) == -1)
                maperror(errno);
            return (a);
        }

        case SO_LINGER:
            if  (optlen == sizeof (int)) {
                struct linger ling;
                ling.l_onoff = 1;
                ling.l_linger = (int)*optval;
                if ((a = _setsockopt(s, level, SO_LINGER, &ling,
                    sizeof (struct linger))) == -1)
                    maperror(errno);
                return (a);
            }
        case SO_DEBUG:
        case SO_KEEPALIVE:
        case SO_DONTROUTE:
        case SO_USELOOPBACK:
        case SO_REUSEADDR:
            if (!optval) {
                int val = 1;
                if ((a = _setsockopt(s, level, optname, &val,
                    sizeof (int))) == -1)
                    maperror(errno);
                return (a);
            }
        }
    if (level == IPPROTO_IP)
        switch (optname) {
        case SUNOS4X_IP_MULTICAST_IF:
            optname = SUNOS5X_IP_MULTICAST_IF;
            break;

        case SUNOS4X_IP_MULTICAST_TTL:
            optname = SUNOS5X_IP_MULTICAST_TTL;
            break;

        case SUNOS4X_IP_MULTICAST_LOOP:
            optname = SUNOS5X_IP_MULTICAST_LOOP;
            break;

        case SUNOS4X_IP_ADD_MEMBERSHIP:
            optname = SUNOS5X_IP_ADD_MEMBERSHIP;
            break;

        case SUNOS4X_IP_DROP_MEMBERSHIP:
            optname = SUNOS5X_IP_DROP_MEMBERSHIP;
            break;
        }

    if ((a = _setsockopt(s, level, optname, optval, optlen)) == -1)
        maperror(errno);
    return(a);
}