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>
72 #define DOPARSABLEEXPORTS 0x4
75 struct mountlist
*ml_left
;
76 struct mountlist
*ml_right
;
77 char ml_host
[MNTNAMLEN
+1];
78 char ml_dirp
[MNTPATHLEN
+1];
82 struct grouplist
*gr_next
;
83 char gr_name
[MNTNAMLEN
+1];
87 struct exportslist
*ex_next
;
88 struct grouplist
*ex_groups
;
89 char ex_dirp
[MNTPATHLEN
+1];
92 static struct mountlist
*mntdump
;
93 static struct exportslist
*exportslist
;
96 void print_dump(struct mountlist
*);
97 static void usage(void);
98 int xdr_mntdump(XDR
*, struct mountlist
**);
99 int xdr_exportslist(XDR
*, struct exportslist
**);
100 int tcp_callrpc(const char *host
, int prognum
, int versnum
, int procnum
,
101 xdrproc_t inproc
, char *in
, xdrproc_t outproc
, char *out
);
104 * This command queries the NFS mount daemon for it's mount list and/or
105 * it's exports list and prints them out.
106 * See "NFS: Network File System Protocol Specification, RFC1094, Appendix A"
107 * and the "Network File System Protocol XXX.."
108 * for detailed information on the protocol.
111 main(int argc
, char **argv
)
113 char strvised
[MNTPATHLEN
* 4 + 1];
114 register struct exportslist
*exp
;
115 register struct grouplist
*grp
;
116 register int rpcs
= 0, mntvers
= 3;
118 int ch
, estat
, nbytes
;
120 while ((ch
= getopt(argc
, argv
, "adEe13")) != -1)
137 rpcs
|= DOPARSABLEEXPORTS
;
155 if ((rpcs
& DOPARSABLEEXPORTS
) != 0) {
156 if ((rpcs
& DOEXPORTS
) != 0)
157 errx(1, "-E cannot be used with -e");
158 if ((rpcs
& DODUMP
) != 0)
159 errx(1, "-E cannot be used with -a or -d");
171 if ((estat
= tcp_callrpc(host
, MOUNTPROG
, mntvers
,
172 MOUNTPROC_DUMP
, (xdrproc_t
)xdr_void
, (char *)0,
173 (xdrproc_t
)xdr_mntdump
, (char *)&mntdump
)) != 0) {
175 errx(1, "can't do mountdump rpc");
177 if (rpcs
& (DOEXPORTS
| DOPARSABLEEXPORTS
))
178 if ((estat
= tcp_callrpc(host
, MOUNTPROG
, mntvers
,
179 MOUNTPROC_EXPORT
, (xdrproc_t
)xdr_void
, (char *)0,
180 (xdrproc_t
)xdr_exportslist
, (char *)&exportslist
)) != 0) {
182 errx(1, "can't do exports rpc");
185 /* Now just print out the results */
189 printf("All mount points on %s:\n", host
);
192 printf("Directories on %s:\n", host
);
195 printf("Hosts on %s:\n", host
);
200 if (rpcs
& DOEXPORTS
) {
201 printf("Exports list on %s:\n", host
);
204 printf("%-34s ", exp
->ex_dirp
);
205 grp
= exp
->ex_groups
;
207 printf("Everyone\n");
210 printf("%s ", grp
->gr_name
);
218 if (rpcs
& DOPARSABLEEXPORTS
) {
221 nbytes
= strsnvis(strvised
, sizeof(strvised
),
222 exp
->ex_dirp
, VIS_GLOB
| VIS_NL
, "\"'$");
225 printf("%s\n", strvised
);
233 * tcp_callrpc has the same interface as callrpc, but tries to
234 * use tcp as transport method in order to handle large replies.
237 tcp_callrpc(const char *host
, int prognum
, int versnum
, int procnum
,
238 xdrproc_t inproc
, char *in
, xdrproc_t outproc
, char *out
)
241 struct timeval timeout
;
244 if ((client
= clnt_create(host
, prognum
, versnum
, "tcp")) == NULL
&&
245 (client
= clnt_create(host
, prognum
, versnum
, "udp")) == NULL
)
246 return ((int) rpc_createerr
.cf_stat
);
250 rval
= (int) clnt_call(client
, procnum
,
254 clnt_destroy(client
);
259 * Xdr routine for retrieving the mount dump list
262 xdr_mntdump(XDR
*xdrsp
, struct mountlist
**mlp
)
264 register struct mountlist
*mp
;
265 register struct mountlist
*tp
;
266 register struct mountlist
**otp
;
271 *mlp
= (struct mountlist
*)0;
272 if (!xdr_bool(xdrsp
, &bool))
275 mp
= (struct mountlist
*)malloc(sizeof(struct mountlist
));
278 mp
->ml_left
= mp
->ml_right
= (struct mountlist
*)0;
280 if (!xdr_string(xdrsp
, &strp
, MNTNAMLEN
))
283 if (!xdr_string(xdrsp
, &strp
, MNTPATHLEN
))
287 * Build a binary tree on sorted order of either host or dirp.
288 * Drop any duplications.
295 val
= strcmp(mp
->ml_host
, tp
->ml_host
);
296 val2
= strcmp(mp
->ml_dirp
, tp
->ml_dirp
);
332 if (!xdr_bool(xdrsp
, &bool))
339 * Xdr routine to retrieve exports list
342 xdr_exportslist(XDR
*xdrsp
, struct exportslist
**exp
)
344 register struct exportslist
*ep
;
345 register struct grouplist
*gp
;
349 *exp
= (struct exportslist
*)0;
350 if (!xdr_bool(xdrsp
, &bool))
353 ep
= (struct exportslist
*)malloc(sizeof(struct exportslist
));
356 ep
->ex_groups
= (struct grouplist
*)0;
358 if (!xdr_string(xdrsp
, &strp
, MNTPATHLEN
))
360 if (!xdr_bool(xdrsp
, &grpbool
))
363 gp
= (struct grouplist
*)malloc(sizeof(struct grouplist
));
367 if (!xdr_string(xdrsp
, &strp
, MNTNAMLEN
))
369 gp
->gr_next
= ep
->ex_groups
;
371 if (!xdr_bool(xdrsp
, &grpbool
))
376 if (!xdr_bool(xdrsp
, &bool))
385 fprintf(stderr
, "usage: showmount [-a | -d] [-e3] [host]\n");
390 * Print the binary tree in inorder so that output is sorted.
393 print_dump(struct mountlist
*mp
)
399 print_dump(mp
->ml_left
);
402 printf("%s:%s\n", mp
->ml_host
, mp
->ml_dirp
);
405 printf("%s\n", mp
->ml_dirp
);
408 printf("%s\n", mp
->ml_host
);
412 print_dump(mp
->ml_right
);