2 * Copyright (c) 1989, 1993, 1995
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 * must display the following acknowledgement:
18 * This product includes software developed by the University of
19 * California, Berkeley and its contributors.
20 * 4. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#) Copyright (c) 1989, 1993, 1995 The Regents of the University of California. All rights reserved.
37 * @(#)showmount.c 8.3 (Berkeley) 3/29/95
38 * $FreeBSD: src/usr.bin/showmount/showmount.c,v 1.8 1999/08/28 01:05:43 peter Exp $
39 * $DragonFly: src/usr.bin/showmount/showmount.c,v 1.2 2003/06/17 04:29:31 dillon Exp $
42 #include <sys/types.h>
43 #include <sys/queue.h>
45 #include <sys/socket.h>
46 #include <sys/socketvar.h>
51 #include <rpc/pmap_clnt.h>
52 #include <rpc/pmap_prot.h>
53 #include <nfs/rpcv2.h>
68 struct mountlist *ml_left;
69 struct mountlist *ml_right;
70 char ml_host[RPCMNT_NAMELEN+1];
71 char ml_dirp[RPCMNT_PATHLEN+1];
75 struct grouplist *gr_next;
76 char gr_name[RPCMNT_NAMELEN+1];
80 struct exportslist *ex_next;
81 struct grouplist *ex_groups;
82 char ex_dirp[RPCMNT_PATHLEN+1];
85 static struct mountlist *mntdump;
86 static struct exportslist *exports;
89 void print_dump __P((struct mountlist *));
90 static void usage __P((void));
91 int xdr_mntdump __P((XDR *, struct mountlist **));
92 int xdr_exports __P((XDR *, struct exportslist **));
93 int tcp_callrpc __P((char *host,
94 int prognum, int versnum, int procnum,
95 xdrproc_t inproc, char *in,
96 xdrproc_t outproc, char *out));
99 * This command queries the NFS mount daemon for it's mount list and/or
100 * it's exports list and prints them out.
101 * See "NFS: Network File System Protocol Specification, RFC1094, Appendix A"
102 * and the "Network File System Protocol XXX.."
103 * for detailed information on the protocol.
110 register struct exportslist *exp;
111 register struct grouplist *grp;
112 register int rpcs = 0, mntvers = 1;
117 while ((ch = getopt(argc, argv, "ade3")) != -1)
155 if ((estat = tcp_callrpc(host, RPCPROG_MNT, mntvers,
156 RPCMNT_DUMP, xdr_void, (char *)0,
157 xdr_mntdump, (char *)&mntdump)) != 0) {
159 errx(1, "can't do mountdump rpc");
161 if (rpcs & DOEXPORTS)
162 if ((estat = tcp_callrpc(host, RPCPROG_MNT, mntvers,
163 RPCMNT_EXPORT, xdr_void, (char *)0,
164 xdr_exports, (char *)&exports)) != 0) {
166 errx(1, "can't do exports rpc");
169 /* Now just print out the results */
173 printf("All mount points on %s:\n", host);
176 printf("Directories on %s:\n", host);
179 printf("Hosts on %s:\n", host);
184 if (rpcs & DOEXPORTS) {
185 printf("Exports list on %s:\n", host);
188 printf("%-35s", exp->ex_dirp);
189 grp = exp->ex_groups;
191 printf("Everyone\n");
194 printf("%s ", grp->gr_name);
206 * tcp_callrpc has the same interface as callrpc, but tries to
207 * use tcp as transport method in order to handle large replies.
211 tcp_callrpc(host, prognum, versnum, procnum, inproc, in, outproc, out)
222 struct sockaddr_in server_addr;
225 struct timeval timeout;
228 hp = gethostbyname(host);
231 return ((int) RPC_UNKNOWNHOST);
233 memset(&server_addr,0,sizeof(server_addr));
234 memcpy((char *) &server_addr.sin_addr,
237 server_addr.sin_len = sizeof(struct sockaddr_in);
238 server_addr.sin_family =AF_INET;
239 server_addr.sin_port = 0;
243 client = clnttcp_create(&server_addr,
245 (u_long) versnum, &sock, 0, 0);
249 server_addr.sin_port = 0;
251 client = clntudp_create(&server_addr,
258 return ((int) rpc_createerr.cf_stat);
262 rval = (int) clnt_call(client, procnum,
266 clnt_destroy(client);
271 * Xdr routine for retrieving the mount dump list
274 xdr_mntdump(xdrsp, mlp)
276 struct mountlist **mlp;
278 register struct mountlist *mp;
279 register struct mountlist *tp;
280 register struct mountlist **otp;
285 *mlp = (struct mountlist *)0;
286 if (!xdr_bool(xdrsp, &bool))
289 mp = (struct mountlist *)malloc(sizeof(struct mountlist));
292 mp->ml_left = mp->ml_right = (struct mountlist *)0;
294 if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN))
297 if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
301 * Build a binary tree on sorted order of either host or dirp.
302 * Drop any duplications.
309 val = strcmp(mp->ml_host, tp->ml_host);
310 val2 = strcmp(mp->ml_dirp, tp->ml_dirp);
346 if (!xdr_bool(xdrsp, &bool))
353 * Xdr routine to retrieve exports list
356 xdr_exports(xdrsp, exp)
358 struct exportslist **exp;
360 register struct exportslist *ep;
361 register struct grouplist *gp;
365 *exp = (struct exportslist *)0;
366 if (!xdr_bool(xdrsp, &bool))
369 ep = (struct exportslist *)malloc(sizeof(struct exportslist));
372 ep->ex_groups = (struct grouplist *)0;
374 if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
376 if (!xdr_bool(xdrsp, &grpbool))
379 gp = (struct grouplist *)malloc(sizeof(struct grouplist));
383 if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN))
385 gp->gr_next = ep->ex_groups;
387 if (!xdr_bool(xdrsp, &grpbool))
392 if (!xdr_bool(xdrsp, &bool))
401 fprintf(stderr, "usage: showmount [-ade3] host\n");
406 * Print the binary tree in inorder so that output is sorted.
410 struct mountlist *mp;
416 print_dump(mp->ml_left);
419 printf("%s:%s\n", mp->ml_host, mp->ml_dirp);
422 printf("%s\n", mp->ml_dirp);
425 printf("%s\n", mp->ml_host);
429 print_dump(mp->ml_right);