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- /*
- * Copyright (c) 1989 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Rick Macklem at The University of Guelph.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- #ifndef lint
- char copyright[] =
- "@(#) Copyright (c) 1989 Regents of the University of California.\n\
- All rights reserved.\n";
- #endif not lint
-
- #ifndef lint
- static char sccsid[] = "@(#)showmount.c 6.5 (Berkeley) 3/1/91";
- #endif not lint
-
- #include <sys/types.h>
- #include <sys/file.h>
- #include <sys/socket.h>
- #include <sys/socketvar.h>
- #include <netdb.h>
- #include <rpc/rpc.h>
- #include <rpc/pmap_clnt.h>
- #include <rpc/pmap_prot.h>
- #include <nfs/rpcv2.h>
- #include <stdio.h>
- #include <string.h>
-
- /* Constant defs */
- #define ALL 1
- #define DIRS 2
-
- #define DODUMP 0x1
- #define DOEXPORTS 0x2
-
- struct mountlist {
- struct mountlist *ml_left;
- struct mountlist *ml_right;
- char ml_host[RPCMNT_NAMELEN+1];
- char ml_dirp[RPCMNT_PATHLEN+1];
- };
-
- struct grouplist {
- struct grouplist *gr_next;
- char gr_name[RPCMNT_NAMELEN+1];
- };
-
- struct exportslist {
- struct exportslist *ex_next;
- struct grouplist *ex_groups;
- char ex_dirp[RPCMNT_PATHLEN+1];
- };
-
- static struct mountlist *mntdump;
- static struct exportslist *exports;
- static int type = 0;
- int xdr_mntdump(), xdr_exports();
-
- /*
- * This command queries the NFS mount daemon for it's mount list and/or
- * it's exports list and prints them out.
- * See "NFS: Network File System Protocol Specification, RFC1094, Appendix A"
- * for detailed information on the protocol.
- */
- main(argc, argv)
- int argc;
- char **argv;
- {
- register struct mountlist *mntp;
- register struct exportslist *exp;
- register struct grouplist *grp;
- extern char *optarg;
- extern int optind;
- register int rpcs = 0;
- char ch;
- char *host;
- int estat;
-
- while ((ch = getopt(argc, argv, "ade")) != EOF)
- switch((char)ch) {
- case 'a':
- if (type == 0) {
- type = ALL;
- rpcs |= DODUMP;
- } else
- usage();
- break;
- case 'd':
- if (type == 0) {
- type = DIRS;
- rpcs |= DODUMP;
- } else
- usage();
- break;
- case 'e':
- rpcs |= DOEXPORTS;
- break;
- case '?':
- default:
- usage();
- }
- argc -= optind;
- argv += optind;
-
- if (argc > 0)
- host = *argv;
- else
- host = "localhost";
-
- if (rpcs == 0)
- rpcs = DODUMP;
-
- if (rpcs & DODUMP)
- if ((estat = callrpc(host, RPCPROG_MNT, RPCMNT_VER1,
- RPCMNT_DUMP, xdr_void, (char *)0,
- xdr_mntdump, (char *)&mntdump)) != 0) {
- clnt_perrno(estat);
- fprintf(stderr, "Can't do Mountdump rpc\n");
- exit(1);
- }
- if (rpcs & DOEXPORTS)
- if ((estat = callrpc(host, RPCPROG_MNT, RPCMNT_VER1,
- RPCMNT_EXPORT, xdr_void, (char *)0,
- xdr_exports, (char *)&exports)) != 0) {
- clnt_perrno(estat);
- fprintf(stderr, "Can't do Exports rpc\n");
- exit(1);
- }
-
- /* Now just print out the results */
- if (rpcs & DODUMP) {
- switch (type) {
- case ALL:
- printf("All mount points on %s:\n", host);
- break;
- case DIRS:
- printf("Directories on %s:\n", host);
- break;
- default:
- printf("Hosts on %s:\n", host);
- break;
- };
- print_dump(mntdump);
- }
- if (rpcs & DOEXPORTS) {
- printf("Exports list on %s:\n", host);
- exp = exports;
- while (exp) {
- printf("%-35s", exp->ex_dirp);
- grp = exp->ex_groups;
- if (grp == NULL) {
- printf("Everyone\n");
- } else {
- while (grp) {
- printf("%s ", grp->gr_name);
- grp = grp->gr_next;
- }
- printf("\n");
- }
- exp = exp->ex_next;
- }
- }
- }
-
- /*
- * Xdr routine for retrieving the mount dump list
- */
- xdr_mntdump(xdrsp, mlp)
- XDR *xdrsp;
- struct mountlist **mlp;
- {
- register struct mountlist *mp;
- register struct mountlist *tp;
- register struct mountlist **otp;
- int val, val2;
- int bool;
- char *strp;
-
- *mlp = (struct mountlist *)0;
- if (!xdr_bool(xdrsp, &bool))
- return (0);
- while (bool) {
- mp = (struct mountlist *)malloc(sizeof(struct mountlist));
- if (mp == NULL)
- return (0);
- mp->ml_left = mp->ml_right = (struct mountlist *)0;
- strp = mp->ml_host;
- if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN))
- return (0);
- strp = mp->ml_dirp;
- if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
- return (0);
-
- /*
- * Build a binary tree on sorted order of either host or dirp.
- * Drop any duplications.
- */
- if (*mlp == NULL) {
- *mlp = mp;
- } else {
- tp = *mlp;
- while (tp) {
- val = strcmp(mp->ml_host, tp->ml_host);
- val2 = strcmp(mp->ml_dirp, tp->ml_dirp);
- switch (type) {
- case ALL:
- if (val == 0) {
- if (val2 == 0) {
- free((caddr_t)mp);
- goto next;
- }
- val = val2;
- }
- break;
- case DIRS:
- if (val2 == 0) {
- free((caddr_t)mp);
- goto next;
- }
- val = val2;
- break;
- default:
- if (val == 0) {
- free((caddr_t)mp);
- goto next;
- }
- break;
- };
- if (val < 0) {
- otp = &tp->ml_left;
- tp = tp->ml_left;
- } else {
- otp = &tp->ml_right;
- tp = tp->ml_right;
- }
- }
- *otp = mp;
- }
- next:
- if (!xdr_bool(xdrsp, &bool))
- return (0);
- }
- return (1);
- }
-
- /*
- * Xdr routine to retrieve exports list
- */
- xdr_exports(xdrsp, exp)
- XDR *xdrsp;
- struct exportslist **exp;
- {
- register struct exportslist *ep;
- register struct grouplist *gp;
- int bool, grpbool;
- char *strp;
-
- *exp = (struct exportslist *)0;
- if (!xdr_bool(xdrsp, &bool))
- return (0);
- while (bool) {
- ep = (struct exportslist *)malloc(sizeof(struct exportslist));
- if (ep == NULL)
- return (0);
- ep->ex_groups = (struct grouplist *)0;
- strp = ep->ex_dirp;
- if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
- return (0);
- if (!xdr_bool(xdrsp, &grpbool))
- return (0);
- while (grpbool) {
- gp = (struct grouplist *)malloc(sizeof(struct grouplist));
- if (gp == NULL)
- return (0);
- strp = gp->gr_name;
- if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN))
- return (0);
- gp->gr_next = ep->ex_groups;
- ep->ex_groups = gp;
- if (!xdr_bool(xdrsp, &grpbool))
- return (0);
- }
- ep->ex_next = *exp;
- *exp = ep;
- if (!xdr_bool(xdrsp, &bool))
- return (0);
- }
- return (1);
- }
-
- usage()
- {
- fprintf(stderr, "usage: showmount [-ade] host\n");
- exit(1);
- }
-
- /*
- * Print the binary tree in inorder so that output is sorted.
- */
- print_dump(mp)
- struct mountlist *mp;
- {
-
- if (mp == NULL)
- return;
- if (mp->ml_left)
- print_dump(mp->ml_left);
- switch (type) {
- case ALL:
- printf("%s:%s\n", mp->ml_host, mp->ml_dirp);
- break;
- case DIRS:
- printf("%s\n", mp->ml_dirp);
- break;
- default:
- printf("%s\n", mp->ml_host);
- break;
- };
- if (mp->ml_right)
- print_dump(mp->ml_right);
- }
-