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 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 static const char copyright[] =
35 "@(#) Copyright (c) 1989, 1993, 1995\n\
36 The Regents of the University of California. All rights reserved.\n";
41 static char sccsid[] = "@(#)showmount.c 8.3 (Berkeley) 3/29/95";
43 static const char rcsid[] =
47 #include <sys/types.h>
48 #include <sys/queue.h>
50 #include <sys/socket.h>
51 #include <sys/socketvar.h>
56 #include <rpc/pmap_clnt.h>
57 #include <rpc/pmap_prot.h>
58 #include <rpcsvc/mount.h>
73 struct mountlist *ml_left;
74 struct mountlist *ml_right;
75 char ml_host[MNTNAMLEN+1];
76 char ml_dirp[MNTPATHLEN+1];
80 struct grouplist *gr_next;
81 char gr_name[MNTNAMLEN+1];
85 struct exportslist *ex_next;
86 struct grouplist *ex_groups;
87 char ex_dirp[MNTPATHLEN+1];
90 static struct mountlist *mntdump;
91 static struct exportslist *exportslist;
94 void print_dump(struct mountlist *);
95 static void usage(void);
96 int xdr_mntdump(XDR *, struct mountlist **);
97 int xdr_exportslist(XDR *, struct exportslist **);
98 int tcp_callrpc(const char *host, int prognum, int versnum, int procnum,
99 xdrproc_t inproc, char *in, xdrproc_t outproc, char *out);
102 * This command queries the NFS mount daemon for it's mount list and/or
103 * it's exports list and prints them out.
104 * See "NFS: Network File System Protocol Specification, RFC1094, Appendix A"
105 * and the "Network File System Protocol XXX.."
106 * for detailed information on the protocol.
109 main(int argc, char **argv)
111 register struct exportslist *exp;
112 register struct grouplist *grp;
113 register int rpcs = 0, mntvers = 3;
117 while ((ch = getopt(argc, argv, "ade13")) != -1)
158 if ((estat = tcp_callrpc(host, MOUNTPROG, mntvers,
159 MOUNTPROC_DUMP, (xdrproc_t)xdr_void, (char *)0,
160 (xdrproc_t)xdr_mntdump, (char *)&mntdump)) != 0) {
162 errx(1, "can't do mountdump rpc");
164 if (rpcs & DOEXPORTS)
165 if ((estat = tcp_callrpc(host, MOUNTPROG, mntvers,
166 MOUNTPROC_EXPORT, (xdrproc_t)xdr_void, (char *)0,
167 (xdrproc_t)xdr_exportslist, (char *)&exportslist)) != 0) {
169 errx(1, "can't do exports rpc");
172 /* Now just print out the results */
176 printf("All mount points on %s:\n", host);
179 printf("Directories on %s:\n", host);
182 printf("Hosts on %s:\n", host);
187 if (rpcs & DOEXPORTS) {
188 printf("Exports list on %s:\n", host);
191 printf("%-34s ", exp->ex_dirp);
192 grp = exp->ex_groups;
194 printf("Everyone\n");
197 printf("%s ", grp->gr_name);
209 * tcp_callrpc has the same interface as callrpc, but tries to
210 * use tcp as transport method in order to handle large replies.
213 tcp_callrpc(const char *host, int prognum, int versnum, int procnum,
214 xdrproc_t inproc, char *in, xdrproc_t outproc, char *out)
217 struct timeval timeout;
220 if ((client = clnt_create(host, prognum, versnum, "tcp")) == NULL &&
221 (client = clnt_create(host, prognum, versnum, "udp")) == NULL)
222 return ((int) rpc_createerr.cf_stat);
226 rval = (int) clnt_call(client, procnum,
230 clnt_destroy(client);
235 * Xdr routine for retrieving the mount dump list
238 xdr_mntdump(XDR *xdrsp, struct mountlist **mlp)
240 register struct mountlist *mp;
241 register struct mountlist *tp;
242 register struct mountlist **otp;
247 *mlp = (struct mountlist *)0;
248 if (!xdr_bool(xdrsp, &bool))
251 mp = (struct mountlist *)malloc(sizeof(struct mountlist));
254 mp->ml_left = mp->ml_right = (struct mountlist *)0;
256 if (!xdr_string(xdrsp, &strp, MNTNAMLEN))
259 if (!xdr_string(xdrsp, &strp, MNTPATHLEN))
263 * Build a binary tree on sorted order of either host or dirp.
264 * Drop any duplications.
271 val = strcmp(mp->ml_host, tp->ml_host);
272 val2 = strcmp(mp->ml_dirp, tp->ml_dirp);
308 if (!xdr_bool(xdrsp, &bool))
315 * Xdr routine to retrieve exports list
318 xdr_exportslist(XDR *xdrsp, struct exportslist **exp)
320 register struct exportslist *ep;
321 register struct grouplist *gp;
325 *exp = (struct exportslist *)0;
326 if (!xdr_bool(xdrsp, &bool))
329 ep = (struct exportslist *)malloc(sizeof(struct exportslist));
332 ep->ex_groups = (struct grouplist *)0;
334 if (!xdr_string(xdrsp, &strp, MNTPATHLEN))
336 if (!xdr_bool(xdrsp, &grpbool))
339 gp = (struct grouplist *)malloc(sizeof(struct grouplist));
343 if (!xdr_string(xdrsp, &strp, MNTNAMLEN))
345 gp->gr_next = ep->ex_groups;
347 if (!xdr_bool(xdrsp, &grpbool))
352 if (!xdr_bool(xdrsp, &bool))
361 fprintf(stderr, "usage: showmount [-a | -d] [-e3] [host]\n");
366 * Print the binary tree in inorder so that output is sorted.
369 print_dump(struct mountlist *mp)
375 print_dump(mp->ml_left);
378 printf("%s:%s\n", mp->ml_host, mp->ml_dirp);
381 printf("%s\n", mp->ml_dirp);
384 printf("%s\n", mp->ml_host);
388 print_dump(mp->ml_right);