7524a0790d
and strcat()s which would be more difficult to fix, but I think they're safe anyway. * Don't crash at runtime by overflowing a buffer with constant data in print-icmp.c on a long hostname. * Don't overflow a static buffer by trying to decode an AFS ACL into a buffer which is way too small for it. Reviewed by: -audit
141 lines
3.6 KiB
C
141 lines
3.6 KiB
C
/*
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* Copyright (c) 1992, 1993, 1994, 1995, 1996
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*
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* $FreeBSD$
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*/
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#ifndef lint
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static const char rcsid[] =
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"@(#) $Header: /tcpdump/master/tcpdump/print-sunrpc.c,v 1.29 1999/11/21 09:37:02 fenner Exp $ (LBL)";
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#if __STDC__
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struct mbuf;
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struct rtentry;
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#endif
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#include <net/if.h>
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#include <netinet/in.h>
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#include <net/ethernet.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <netinet/ip_var.h>
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#include <rpc/rpc.h>
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#ifdef HAVE_RPC_RPCENT_H
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#include <rpc/rpcent.h>
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#endif
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#include <rpc/pmap_prot.h>
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#include <ctype.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <string.h>
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#include "interface.h"
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#include "addrtoname.h"
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static struct tok proc2str[] = {
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{ PMAPPROC_NULL, "null" },
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{ PMAPPROC_SET, "set" },
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{ PMAPPROC_UNSET, "unset" },
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{ PMAPPROC_GETPORT, "getport" },
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{ PMAPPROC_DUMP, "dump" },
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{ PMAPPROC_CALLIT, "call" },
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{ 0, NULL }
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};
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/* Forwards */
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static char *progstr(u_int32_t);
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void
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sunrpcrequest_print(register const u_char *bp, register u_int length,
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register const u_char *bp2)
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{
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register const struct rpc_msg *rp;
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register const struct ip *ip;
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u_int32_t x;
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rp = (struct rpc_msg *)bp;
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ip = (struct ip *)bp2;
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if (!nflag)
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(void)printf("%s.%x > %s.sunrpc: %d",
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ipaddr_string(&ip->ip_src),
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(u_int32_t)ntohl(rp->rm_xid),
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ipaddr_string(&ip->ip_dst),
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length);
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else
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(void)printf("%s.%x > %s.%x: %d",
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ipaddr_string(&ip->ip_src),
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(u_int32_t)ntohl(rp->rm_xid),
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ipaddr_string(&ip->ip_dst),
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PMAPPORT,
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length);
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printf(" %s", tok2str(proc2str, " proc #%u",
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(u_int32_t)ntohl(rp->rm_call.cb_proc)));
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x = ntohl(rp->rm_call.cb_rpcvers);
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if (x != 2)
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printf(" [rpcver %u]", x);
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switch (ntohl(rp->rm_call.cb_proc)) {
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case PMAPPROC_SET:
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case PMAPPROC_UNSET:
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case PMAPPROC_GETPORT:
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case PMAPPROC_CALLIT:
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x = ntohl(rp->rm_call.cb_prog);
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if (!nflag)
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printf(" %s", progstr(x));
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else
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printf(" %u", x);
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printf(".%u", (u_int32_t)ntohl(rp->rm_call.cb_vers));
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break;
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}
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}
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static char *
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progstr(prog)
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u_int32_t prog;
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{
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register struct rpcent *rp;
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static char buf[32];
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static int lastprog = 0;
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if (lastprog != 0 && prog == lastprog)
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return (buf);
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rp = getrpcbynumber(prog);
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if (rp == NULL)
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(void) sprintf(buf, "#%u", prog);
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else {
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strncpy(buf, rp->r_name, sizeof(buf)-1);
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buf[sizeof(buf)-1] = '\0';
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}
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return (buf);
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}
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