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
38 static const char copyright[] =
39 "@(#) Copyright (c) 1989, 1993, 1995\n\
40 The Regents of the University of California. All rights reserved.\n";
45 static char sccsid[] = "@(#)showmount.c 8.3 (Berkeley) 3/29/95";
47 static const char rcsid[] =
51 #include <sys/types.h>
52 #include <sys/queue.h>
54 #include <sys/socket.h>
55 #include <sys/socketvar.h>
60 #include <rpc/pmap_clnt.h>
61 #include <rpc/pmap_prot.h>
62 #include <rpcsvc/mount.h>
77 struct mountlist *ml_left;
78 struct mountlist *ml_right;
79 char ml_host[MNTNAMLEN+1];
80 char ml_dirp[MNTPATHLEN+1];
84 struct grouplist *gr_next;
85 char gr_name[MNTNAMLEN+1];
89 struct exportslist *ex_next;
90 struct grouplist *ex_groups;
91 char ex_dirp[MNTPATHLEN+1];
94 static struct mountlist *mntdump;
95 static struct exportslist *exportslist;
98 void print_dump(struct mountlist *);
99 static void usage(void);
100 int xdr_mntdump(XDR *, struct mountlist **);
101 int xdr_exportslist(XDR *, struct exportslist **);
102 int tcp_callrpc(const char *host, int prognum, int versnum, int procnum,
103 xdrproc_t inproc, char *in, xdrproc_t outproc, char *out);
106 * This command queries the NFS mount daemon for it's mount list and/or
107 * it's exports list and prints them out.
108 * See "NFS: Network File System Protocol Specification, RFC1094, Appendix A"
109 * and the "Network File System Protocol XXX.."
110 * for detailed information on the protocol.
113 main(int argc, char **argv)
115 register struct exportslist *exp;
116 register struct grouplist *grp;
117 register int rpcs = 0, mntvers = 1;
121 while ((ch = getopt(argc, argv, "ade3")) != -1)
159 if ((estat = tcp_callrpc(host, MOUNTPROG, mntvers,
160 MOUNTPROC_DUMP, (xdrproc_t)xdr_void, (char *)0,
161 (xdrproc_t)xdr_mntdump, (char *)&mntdump)) != 0) {
163 errx(1, "can't do mountdump rpc");
165 if (rpcs & DOEXPORTS)
166 if ((estat = tcp_callrpc(host, MOUNTPROG, mntvers,
167 MOUNTPROC_EXPORT, (xdrproc_t)xdr_void, (char *)0,
168 (xdrproc_t)xdr_exportslist, (char *)&exportslist)) != 0) {
170 errx(1, "can't do exports rpc");
173 /* Now just print out the results */
177 printf("All mount points on %s:\n", host);
180 printf("Directories on %s:\n", host);
183 printf("Hosts on %s:\n", host);
188 if (rpcs & DOEXPORTS) {
189 printf("Exports list on %s:\n", host);
192 printf("%-35s", exp->ex_dirp);
193 grp = exp->ex_groups;
195 printf("Everyone\n");
198 printf("%s ", grp->gr_name);
210 * tcp_callrpc has the same interface as callrpc, but tries to
211 * use tcp as transport method in order to handle large replies.
214 tcp_callrpc(const char *host, int prognum, int versnum, int procnum,
215 xdrproc_t inproc, char *in, xdrproc_t outproc, char *out)
218 struct timeval timeout;
221 if ((client = clnt_create(host, prognum, versnum, "tcp")) == NULL &&
222 (client = clnt_create(host, prognum, versnum, "udp")) == NULL)
223 return ((int) rpc_createerr.cf_stat);
227 rval = (int) clnt_call(client, procnum,
231 clnt_destroy(client);
236 * Xdr routine for retrieving the mount dump list
239 xdr_mntdump(XDR *xdrsp, struct mountlist **mlp)
241 register struct mountlist *mp;
242 register struct mountlist *tp;
243 register struct mountlist **otp;
248 *mlp = (struct mountlist *)0;
249 if (!xdr_bool(xdrsp, &bool))
252 mp = (struct mountlist *)malloc(sizeof(struct mountlist));
255 mp->ml_left = mp->ml_right = (struct mountlist *)0;
257 if (!xdr_string(xdrsp, &strp, MNTNAMLEN))
260 if (!xdr_string(xdrsp, &strp, MNTPATHLEN))
264 * Build a binary tree on sorted order of either host or dirp.
265 * Drop any duplications.
272 val = strcmp(mp->ml_host, tp->ml_host);
273 val2 = strcmp(mp->ml_dirp, tp->ml_dirp);
309 if (!xdr_bool(xdrsp, &bool))
316 * Xdr routine to retrieve exports list
319 xdr_exportslist(XDR *xdrsp, struct exportslist **exp)
321 register struct exportslist *ep;
322 register struct grouplist *gp;
326 *exp = (struct exportslist *)0;
327 if (!xdr_bool(xdrsp, &bool))
330 ep = (struct exportslist *)malloc(sizeof(struct exportslist));
333 ep->ex_groups = (struct grouplist *)0;
335 if (!xdr_string(xdrsp, &strp, MNTPATHLEN))
337 if (!xdr_bool(xdrsp, &grpbool))
340 gp = (struct grouplist *)malloc(sizeof(struct grouplist));
344 if (!xdr_string(xdrsp, &strp, MNTNAMLEN))
346 gp->gr_next = ep->ex_groups;
348 if (!xdr_bool(xdrsp, &grpbool))
353 if (!xdr_bool(xdrsp, &bool))
362 fprintf(stderr, "usage: showmount [-a | -d] [-e3] [host]\n");
367 * Print the binary tree in inorder so that output is sorted.
370 print_dump(struct mountlist *mp)
376 print_dump(mp->ml_left);
379 printf("%s:%s\n", mp->ml_host, mp->ml_dirp);
382 printf("%s\n", mp->ml_dirp);
385 printf("%s\n", mp->ml_host);
389 print_dump(mp->ml_right);