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pmap_clnt.c revision 1.16 
      1 /*	$NetBSD: pmap_clnt.c,v 1.16 2000/07/06 03:10:34 christos Exp $	*/
      2 
      3 /*
      4  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
      5  * unrestricted use provided that this legend is included on all tape
      6  * media and as a part of the software program in whole or part.  Users
      7  * may copy or modify Sun RPC without charge, but are not authorized
      8  * to license or distribute it to anyone else except as part of a product or
      9  * program developed by the user.
     10  *
     11  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
     12  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
     13  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
     14  *
     15  * Sun RPC is provided with no support and without any obligation on the
     16  * part of Sun Microsystems, Inc. to assist in its use, correction,
     17  * modification or enhancement.
     18  *
     19  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
     20  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
     21  * OR ANY PART THEREOF.
     22  *
     23  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
     24  * or profits or other special, indirect and consequential damages, even if
     25  * Sun has been advised of the possibility of such damages.
     26  *
     27  * Sun Microsystems, Inc.
     28  * 2550 Garcia Avenue
     29  * Mountain View, California  94043
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #if defined(LIBC_SCCS) && !defined(lint)
     34 #if 0
     35 static char *sccsid = "@(#)pmap_clnt.c 1.37 87/08/11 Copyr 1984 Sun Micro";
     36 static char *sccsid = "@(#)pmap_clnt.c	2.2 88/08/01 4.0 RPCSRC";
     37 #else
     38 __RCSID("$NetBSD: pmap_clnt.c,v 1.16 2000/07/06 03:10:34 christos Exp $");
     39 #endif
     40 #endif
     41 
     42 /*
     43  * pmap_clnt.c
     44  * Client interface to pmap rpc service.
     45  *
     46  * Copyright (C) 1984, Sun Microsystems, Inc.
     47  */
     48 
     49 #include "namespace.h"
     50 
     51 #include <unistd.h>
     52 
     53 #include <rpc/rpc.h>
     54 #include <rpc/pmap_prot.h>
     55 #include <rpc/pmap_clnt.h>
     56 #include <rpc/nettype.h>
     57 
     58 #include <stdio.h>
     59 #include <stdlib.h>
     60 
     61 #include "rpc_com.h"
     62 
     63 #ifdef __weak_alias
     64 __weak_alias(pmap_set,_pmap_set)
     65 __weak_alias(pmap_unset,_pmap_unset)
     66 #endif
     67 
     68 bool_t
     69 pmap_set(u_long program, u_long version, int protocol, int port)
     70 {
     71 	bool_t rslt;
     72 	struct netbuf *na;
     73 	struct netconfig *nconf;
     74 	char buf[32];
     75 
     76 	if ((protocol != IPPROTO_UDP) && (protocol != IPPROTO_TCP)) {
     77 		return (FALSE);
     78 	}
     79 	nconf = __rpc_getconfip(protocol == IPPROTO_UDP ? "udp" : "tcp");
     80 	if (nconf == NULL) {
     81 		return (FALSE);
     82 	}
     83 	snprintf(buf, sizeof buf, "0.0.0.0.%d.%d",
     84 	    (((u_int32_t)port) >> 8) & 0xff, port & 0xff);
     85 	na = uaddr2taddr(nconf, buf);
     86 	if (na == NULL) {
     87 		freenetconfigent(nconf);
     88 		return (FALSE);
     89 	}
     90 	rslt = rpcb_set((rpcprog_t)program, (rpcvers_t)version, nconf, na);
     91 	free(na);
     92 	freenetconfigent(nconf);
     93 	return (rslt);
     94 }
     95 
     96 /*
     97  * Remove the mapping between program, version and port.
     98  * Calls the pmap service remotely to do the un-mapping.
     99  */
    100 bool_t
    101 pmap_unset(u_long program, u_long version)
    102 {
    103 	struct netconfig *nconf;
    104 	bool_t udp_rslt = FALSE;
    105 	bool_t tcp_rslt = FALSE;
    106 
    107 	nconf = __rpc_getconfip("udp");
    108 	if (nconf != NULL) {
    109 		udp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
    110 		    nconf);
    111 		freenetconfigent(nconf);
    112 	}
    113 	nconf = __rpc_getconfip("tcp");
    114 	if (nconf != NULL) {
    115 		tcp_rslt = rpcb_unset((rpcprog_t)program, (rpcvers_t)version,
    116 		    nconf);
    117 		freenetconfigent(nconf);
    118 	}
    119 	/*
    120 	 * XXX: The call may still succeed even if only one of the
    121 	 * calls succeeded.  This was the best that could be
    122 	 * done for backward compatibility.
    123 	 */
    124 	return (tcp_rslt || udp_rslt);
    125 }
    126