/*      $OpenBSD: print-sunrpc.c,v 1.23 2023/09/06 05:54:07 jsg Exp $   */

/*
 * Copyright (c) 1992, 1993, 1994, 1995, 1996
 *      The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that: (1) source code distributions
 * retain the above copyright notice and this paragraph in its entirety, (2)
 * distributions including binary code include the above copyright notice and
 * this paragraph in its entirety in the documentation or other materials
 * provided with the distribution, and (3) all advertising materials mentioning
 * features or use of this software display the following acknowledgement:
 * ``This product includes software developed by the University of California,
 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
 * the University nor the names of its contributors may be used to endorse
 * or promote products derived from this software without specific prior
 * written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#include <sys/time.h>
#include <sys/socket.h>

#include <net/if.h>

#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>

#include <rpc/rpc.h>
#ifdef HAVE_RPC_RPCENT_H
#include <rpc/rpcent.h>
#endif
#include <rpc/pmap_prot.h>

#include <ctype.h>
#include <netdb.h>
#include <stdio.h>
#include <string.h>

#include "interface.h"
#include "addrtoname.h"
#include "privsep.h"

static struct tok proc2str[] = {
        { PMAPPROC_NULL,        "null" },
        { PMAPPROC_SET,         "set" },
        { PMAPPROC_UNSET,       "unset" },
        { PMAPPROC_GETPORT,     "getport" },
        { PMAPPROC_DUMP,        "dump" },
        { PMAPPROC_CALLIT,      "call" },
        { 0,                    NULL }
};

/* Forwards */
static char *progstr(u_int32_t);

void
sunrpcrequest_print(const u_char *bp, u_int length, const u_char *bp2)
{
        const struct rpc_msg *rp;
        u_int32_t x;

        rp = (struct rpc_msg *)bp;

        printf("xid 0x%x %d", (u_int32_t)ntohl(rp->rm_xid), length);
        printf(" %s", tok2str(proc2str, " proc #%u",
            (u_int32_t)ntohl(rp->rm_call.cb_proc)));
        x = ntohl(rp->rm_call.cb_rpcvers);
        if (x != 2)
                printf(" [rpcver %u]", x);

        switch (ntohl(rp->rm_call.cb_proc)) {

        case PMAPPROC_SET:
        case PMAPPROC_UNSET:
        case PMAPPROC_GETPORT:
        case PMAPPROC_CALLIT:
                x = ntohl(rp->rm_call.cb_prog);
                if (!nflag)
                        printf(" %s", progstr(x));
                else
                        printf(" %u", x);
                printf(".%u", (u_int32_t)ntohl(rp->rm_call.cb_vers));
                break;
        }
}

static char *
progstr(u_int32_t prog)
{
        char progname[32];
        static char buf[32];
        static int lastprog = 0;

        if (lastprog != 0 && prog == lastprog)
                return (buf);
        lastprog = prog;
        if (priv_getrpcbynumber(prog, progname, sizeof(progname)) == 0)
                snprintf(buf, sizeof(buf), "#%u", prog);
        else
                strlcpy(buf, progname, sizeof(buf));
        return (buf);
}