17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
57c478bd9Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate  * with the License.
87c478bd9Sstevel@tonic-gate  *
97c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate  * and limitations under the License.
137c478bd9Sstevel@tonic-gate  *
147c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate  *
207c478bd9Sstevel@tonic-gate  * CDDL HEADER END
217c478bd9Sstevel@tonic-gate  */
227c478bd9Sstevel@tonic-gate /*
23*11606941Sjwahlig  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
277c478bd9Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
287c478bd9Sstevel@tonic-gate /*	  All Rights Reserved  	*/
297c478bd9Sstevel@tonic-gate 
307c478bd9Sstevel@tonic-gate /*
317c478bd9Sstevel@tonic-gate  * University Copyright- Copyright (c) 1982, 1986, 1988
327c478bd9Sstevel@tonic-gate  * The Regents of the University of California
337c478bd9Sstevel@tonic-gate  * All Rights Reserved
347c478bd9Sstevel@tonic-gate  *
357c478bd9Sstevel@tonic-gate  * University Acknowledgment- Portions of this document are derived from
367c478bd9Sstevel@tonic-gate  * software developed by the University of California, Berkeley, and its
377c478bd9Sstevel@tonic-gate  * contributors.
387c478bd9Sstevel@tonic-gate  */
397c478bd9Sstevel@tonic-gate 
407c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
417c478bd9Sstevel@tonic-gate 
427c478bd9Sstevel@tonic-gate /*
437c478bd9Sstevel@tonic-gate  * showmount
447c478bd9Sstevel@tonic-gate  */
457c478bd9Sstevel@tonic-gate #include <stdio.h>
467c478bd9Sstevel@tonic-gate #include <stdarg.h>
477c478bd9Sstevel@tonic-gate #include <rpc/rpc.h>
487c478bd9Sstevel@tonic-gate #include <rpc/rpcb_clnt.h>
497c478bd9Sstevel@tonic-gate #include <sys/socket.h>
507c478bd9Sstevel@tonic-gate #include <netdb.h>
517c478bd9Sstevel@tonic-gate #include <sys/time.h>
527c478bd9Sstevel@tonic-gate #include <errno.h>
537c478bd9Sstevel@tonic-gate #include <nfs/nfs.h>
547c478bd9Sstevel@tonic-gate #include <rpcsvc/mount.h>
557c478bd9Sstevel@tonic-gate #include <locale.h>
567c478bd9Sstevel@tonic-gate 
577c478bd9Sstevel@tonic-gate int sorthost();
587c478bd9Sstevel@tonic-gate int sortpath();
597c478bd9Sstevel@tonic-gate void pr_err(char *, ...);
607c478bd9Sstevel@tonic-gate void printex();
617c478bd9Sstevel@tonic-gate void usage();
627c478bd9Sstevel@tonic-gate 
637c478bd9Sstevel@tonic-gate /*
647c478bd9Sstevel@tonic-gate  * Dynamically-sized array of pointers to mountlist entries.  Each element
657c478bd9Sstevel@tonic-gate  * points into the linked list returned by the RPC call.  We use an array
667c478bd9Sstevel@tonic-gate  * so that we can conveniently sort the entries.
677c478bd9Sstevel@tonic-gate  */
687c478bd9Sstevel@tonic-gate static struct mountbody **table;
697c478bd9Sstevel@tonic-gate 
707c478bd9Sstevel@tonic-gate struct	timeval	rpc_totout_new = {15, 0};
717c478bd9Sstevel@tonic-gate 
72*11606941Sjwahlig int
main(int argc,char * argv[])73*11606941Sjwahlig main(int argc, char *argv[])
747c478bd9Sstevel@tonic-gate {
757c478bd9Sstevel@tonic-gate 	int aflg = 0, dflg = 0, eflg = 0;
767c478bd9Sstevel@tonic-gate 	int err;
777c478bd9Sstevel@tonic-gate 	struct mountbody *result_list = NULL;
787c478bd9Sstevel@tonic-gate 	struct mountbody *ml = NULL;
797c478bd9Sstevel@tonic-gate 	struct mountbody **tb;		/* pointer into table */
807c478bd9Sstevel@tonic-gate 	char *host, hostbuf[256];
817c478bd9Sstevel@tonic-gate 	char *last;
827c478bd9Sstevel@tonic-gate 	CLIENT *cl;
837c478bd9Sstevel@tonic-gate 	extern int optind;
847c478bd9Sstevel@tonic-gate 	extern char *optarg;
857c478bd9Sstevel@tonic-gate 	int c;
867c478bd9Sstevel@tonic-gate 	struct	timeval	tout, rpc_totout_old;
877c478bd9Sstevel@tonic-gate 	int	numentries;
887c478bd9Sstevel@tonic-gate 	(void) setlocale(LC_ALL, "");
897c478bd9Sstevel@tonic-gate 
907c478bd9Sstevel@tonic-gate #if !defined(TEXT_DOMAIN)
917c478bd9Sstevel@tonic-gate #define	TEXT_DOMAIN "SYS_TEST"
927c478bd9Sstevel@tonic-gate #endif
937c478bd9Sstevel@tonic-gate 	(void) textdomain(TEXT_DOMAIN);
947c478bd9Sstevel@tonic-gate 
957c478bd9Sstevel@tonic-gate 	while ((c = getopt(argc, argv, "ade")) != EOF) {
967c478bd9Sstevel@tonic-gate 		switch (c) {
977c478bd9Sstevel@tonic-gate 		case 'a':
987c478bd9Sstevel@tonic-gate 			aflg++;
997c478bd9Sstevel@tonic-gate 			break;
1007c478bd9Sstevel@tonic-gate 		case 'd':
1017c478bd9Sstevel@tonic-gate 			dflg++;
1027c478bd9Sstevel@tonic-gate 			break;
1037c478bd9Sstevel@tonic-gate 		case 'e':
1047c478bd9Sstevel@tonic-gate 			eflg++;
1057c478bd9Sstevel@tonic-gate 			break;
1067c478bd9Sstevel@tonic-gate 		default:
1077c478bd9Sstevel@tonic-gate 			usage();
1087c478bd9Sstevel@tonic-gate 			exit(1);
1097c478bd9Sstevel@tonic-gate 		}
1107c478bd9Sstevel@tonic-gate 	}
1117c478bd9Sstevel@tonic-gate 
1127c478bd9Sstevel@tonic-gate 	switch (argc - optind) {
1137c478bd9Sstevel@tonic-gate 	case 0:		/* no args */
1147c478bd9Sstevel@tonic-gate 		if (gethostname(hostbuf, sizeof (hostbuf)) < 0) {
1157c478bd9Sstevel@tonic-gate 			pr_err("gethostname: %s\n", strerror(errno));
1167c478bd9Sstevel@tonic-gate 			exit(1);
1177c478bd9Sstevel@tonic-gate 		}
1187c478bd9Sstevel@tonic-gate 		host = hostbuf;
1197c478bd9Sstevel@tonic-gate 		break;
1207c478bd9Sstevel@tonic-gate 	case 1:		/* one arg */
1217c478bd9Sstevel@tonic-gate 		host = argv[optind];
1227c478bd9Sstevel@tonic-gate 		break;
1237c478bd9Sstevel@tonic-gate 	default:	/* too many args */
1247c478bd9Sstevel@tonic-gate 		usage();
1257c478bd9Sstevel@tonic-gate 		exit(1);
1267c478bd9Sstevel@tonic-gate 	}
1277c478bd9Sstevel@tonic-gate 
1287c478bd9Sstevel@tonic-gate 	__rpc_control(CLCR_GET_RPCB_TIMEOUT, &rpc_totout_old);
1297c478bd9Sstevel@tonic-gate 	__rpc_control(CLCR_SET_RPCB_TIMEOUT, &rpc_totout_new);
1307c478bd9Sstevel@tonic-gate 
1317c478bd9Sstevel@tonic-gate 	/*
1327c478bd9Sstevel@tonic-gate 	 * First try circuit, then drop back to datagram if
1337c478bd9Sstevel@tonic-gate 	 * circuit is unavailable (an old version of mountd perhaps)
1347c478bd9Sstevel@tonic-gate 	 * Using circuit is preferred because it can handle
1357c478bd9Sstevel@tonic-gate 	 * arbitrarily long export lists.
1367c478bd9Sstevel@tonic-gate 	 */
1377c478bd9Sstevel@tonic-gate 	cl = clnt_create(host, MOUNTPROG, MOUNTVERS, "circuit_n");
1387c478bd9Sstevel@tonic-gate 	if (cl == NULL) {
1397c478bd9Sstevel@tonic-gate 		if (rpc_createerr.cf_stat == RPC_PROGNOTREGISTERED)
1407c478bd9Sstevel@tonic-gate 			cl = clnt_create(host, MOUNTPROG, MOUNTVERS,
1417c478bd9Sstevel@tonic-gate 					"datagram_n");
1427c478bd9Sstevel@tonic-gate 		if (cl == NULL) {
1437c478bd9Sstevel@tonic-gate 			pr_err("");
1447c478bd9Sstevel@tonic-gate 			clnt_pcreateerror(host);
1457c478bd9Sstevel@tonic-gate 			__rpc_control(CLCR_SET_RPCB_TIMEOUT, &rpc_totout_old);
1467c478bd9Sstevel@tonic-gate 			exit(1);
1477c478bd9Sstevel@tonic-gate 		}
1487c478bd9Sstevel@tonic-gate 	}
1497c478bd9Sstevel@tonic-gate 
1507c478bd9Sstevel@tonic-gate 	__rpc_control(CLCR_SET_RPCB_TIMEOUT, &rpc_totout_old);
1517c478bd9Sstevel@tonic-gate 
1527c478bd9Sstevel@tonic-gate 	if (eflg) {
1537c478bd9Sstevel@tonic-gate 		printex(cl, host);
1547c478bd9Sstevel@tonic-gate 		if (aflg + dflg == 0) {
1557c478bd9Sstevel@tonic-gate 			exit(0);
1567c478bd9Sstevel@tonic-gate 		}
1577c478bd9Sstevel@tonic-gate 	}
1587c478bd9Sstevel@tonic-gate 
1597c478bd9Sstevel@tonic-gate 	tout.tv_sec = 10;
1607c478bd9Sstevel@tonic-gate 	tout.tv_usec = 0;
1617c478bd9Sstevel@tonic-gate 
1627c478bd9Sstevel@tonic-gate 	if (err = clnt_call(cl, MOUNTPROC_DUMP,
1637c478bd9Sstevel@tonic-gate 			    xdr_void, 0, xdr_mountlist,
1647c478bd9Sstevel@tonic-gate 				(caddr_t)&result_list, tout)) {
1657c478bd9Sstevel@tonic-gate 		pr_err("%s\n", clnt_sperrno(err));
1667c478bd9Sstevel@tonic-gate 		exit(1);
1677c478bd9Sstevel@tonic-gate 	}
1687c478bd9Sstevel@tonic-gate 
1697c478bd9Sstevel@tonic-gate 	/*
1707c478bd9Sstevel@tonic-gate 	 * Count the number of entries in the list.  If the list is empty,
1717c478bd9Sstevel@tonic-gate 	 * quit now.
1727c478bd9Sstevel@tonic-gate 	 */
1737c478bd9Sstevel@tonic-gate 	numentries = 0;
1747c478bd9Sstevel@tonic-gate 	for (ml = result_list; ml != NULL; ml = ml->ml_next)
1757c478bd9Sstevel@tonic-gate 		numentries++;
1767c478bd9Sstevel@tonic-gate 	if (numentries == 0)
1777c478bd9Sstevel@tonic-gate 		exit(0);
1787c478bd9Sstevel@tonic-gate 
1797c478bd9Sstevel@tonic-gate 	/*
1807c478bd9Sstevel@tonic-gate 	 * Allocate memory for the array and initialize the array.
1817c478bd9Sstevel@tonic-gate 	 */
1827c478bd9Sstevel@tonic-gate 
1837c478bd9Sstevel@tonic-gate 	table = (struct mountbody **)calloc(numentries,
1847c478bd9Sstevel@tonic-gate 						sizeof (struct mountbody *));
1857c478bd9Sstevel@tonic-gate 	if (table == NULL) {
1867c478bd9Sstevel@tonic-gate 		pr_err(gettext("not enough memory for %d entries\n"),
1877c478bd9Sstevel@tonic-gate 		    numentries);
1887c478bd9Sstevel@tonic-gate 		exit(1);
1897c478bd9Sstevel@tonic-gate 	}
1907c478bd9Sstevel@tonic-gate 	for (ml = result_list, tb = &table[0];
1917c478bd9Sstevel@tonic-gate 	    ml != NULL;
1927c478bd9Sstevel@tonic-gate 	    ml = ml->ml_next, tb++) {
1937c478bd9Sstevel@tonic-gate 		*tb = ml;
1947c478bd9Sstevel@tonic-gate 	}
1957c478bd9Sstevel@tonic-gate 
1967c478bd9Sstevel@tonic-gate 	/*
1977c478bd9Sstevel@tonic-gate 	 * Sort the entries and print the results.
1987c478bd9Sstevel@tonic-gate 	 */
1997c478bd9Sstevel@tonic-gate 
2007c478bd9Sstevel@tonic-gate 	if (dflg)
2017c478bd9Sstevel@tonic-gate 	    qsort(table, numentries, sizeof (struct mountbody *), sortpath);
2027c478bd9Sstevel@tonic-gate 	else
2037c478bd9Sstevel@tonic-gate 	    qsort(table, numentries, sizeof (struct mountbody *), sorthost);
2047c478bd9Sstevel@tonic-gate 	if (aflg) {
2057c478bd9Sstevel@tonic-gate 		for (tb = table; tb < table + numentries; tb++)
2067c478bd9Sstevel@tonic-gate 			printf("%s:%s\n", (*tb)->ml_hostname,
2077c478bd9Sstevel@tonic-gate 			    (*tb)->ml_directory);
2087c478bd9Sstevel@tonic-gate 	} else if (dflg) {
2097c478bd9Sstevel@tonic-gate 		last = "";
2107c478bd9Sstevel@tonic-gate 		for (tb = table; tb < table + numentries; tb++) {
2117c478bd9Sstevel@tonic-gate 			if (strcmp(last, (*tb)->ml_directory))
2127c478bd9Sstevel@tonic-gate 				printf("%s\n", (*tb)->ml_directory);
2137c478bd9Sstevel@tonic-gate 			last = (*tb)->ml_directory;
2147c478bd9Sstevel@tonic-gate 		}
2157c478bd9Sstevel@tonic-gate 	} else {
2167c478bd9Sstevel@tonic-gate 		last = "";
2177c478bd9Sstevel@tonic-gate 		for (tb = table; tb < table + numentries; tb++) {
2187c478bd9Sstevel@tonic-gate 			if (strcmp(last, (*tb)->ml_hostname))
2197c478bd9Sstevel@tonic-gate 				printf("%s\n", (*tb)->ml_hostname);
2207c478bd9Sstevel@tonic-gate 			last = (*tb)->ml_hostname;
2217c478bd9Sstevel@tonic-gate 		}
2227c478bd9Sstevel@tonic-gate 	}
2237c478bd9Sstevel@tonic-gate 	return (0);
2247c478bd9Sstevel@tonic-gate }
2257c478bd9Sstevel@tonic-gate 
226*11606941Sjwahlig int
sorthost(a,b)2277c478bd9Sstevel@tonic-gate sorthost(a, b)
2287c478bd9Sstevel@tonic-gate 	struct mountbody **a, **b;
2297c478bd9Sstevel@tonic-gate {
2307c478bd9Sstevel@tonic-gate 	return (strcmp((*a)->ml_hostname, (*b)->ml_hostname));
2317c478bd9Sstevel@tonic-gate }
2327c478bd9Sstevel@tonic-gate 
233*11606941Sjwahlig int
sortpath(a,b)2347c478bd9Sstevel@tonic-gate sortpath(a, b)
2357c478bd9Sstevel@tonic-gate 	struct mountbody **a, **b;
2367c478bd9Sstevel@tonic-gate {
2377c478bd9Sstevel@tonic-gate 	return (strcmp((*a)->ml_directory, (*b)->ml_directory));
2387c478bd9Sstevel@tonic-gate }
2397c478bd9Sstevel@tonic-gate 
2407c478bd9Sstevel@tonic-gate void
usage()2417c478bd9Sstevel@tonic-gate usage()
2427c478bd9Sstevel@tonic-gate {
2437c478bd9Sstevel@tonic-gate 	(void) fprintf(stderr,
2447c478bd9Sstevel@tonic-gate 			gettext("Usage: showmount [-a] [-d] [-e] [host]\n"));
2457c478bd9Sstevel@tonic-gate }
2467c478bd9Sstevel@tonic-gate 
2477c478bd9Sstevel@tonic-gate void
pr_err(char * fmt,...)2487c478bd9Sstevel@tonic-gate pr_err(char *fmt, ...)
2497c478bd9Sstevel@tonic-gate {
2507c478bd9Sstevel@tonic-gate 	va_list ap;
2517c478bd9Sstevel@tonic-gate 
2527c478bd9Sstevel@tonic-gate 	va_start(ap, fmt);
2537c478bd9Sstevel@tonic-gate 	(void) fprintf(stderr, "showmount: ");
2547c478bd9Sstevel@tonic-gate 	(void) vfprintf(stderr, fmt, ap);
2557c478bd9Sstevel@tonic-gate 	va_end(ap);
2567c478bd9Sstevel@tonic-gate }
2577c478bd9Sstevel@tonic-gate 
2587c478bd9Sstevel@tonic-gate void
printex(cl,host)2597c478bd9Sstevel@tonic-gate printex(cl, host)
2607c478bd9Sstevel@tonic-gate 	CLIENT *cl;
2617c478bd9Sstevel@tonic-gate 	char *host;
2627c478bd9Sstevel@tonic-gate {
2637c478bd9Sstevel@tonic-gate 	struct exportnode *ex = NULL;
2647c478bd9Sstevel@tonic-gate 	struct exportnode *e;
2657c478bd9Sstevel@tonic-gate 	struct groupnode *gr;
2667c478bd9Sstevel@tonic-gate 	enum clnt_stat err;
2677c478bd9Sstevel@tonic-gate 	int max;
2687c478bd9Sstevel@tonic-gate 	struct	timeval	tout;
2697c478bd9Sstevel@tonic-gate 
2707c478bd9Sstevel@tonic-gate 	tout.tv_sec = 10;
2717c478bd9Sstevel@tonic-gate 	tout.tv_usec = 0;
2727c478bd9Sstevel@tonic-gate 
2737c478bd9Sstevel@tonic-gate 	if (err = clnt_call(cl, MOUNTPROC_EXPORT,
274*11606941Sjwahlig 	    xdr_void, 0, xdr_exports, (caddr_t)&ex, tout)) {
2757c478bd9Sstevel@tonic-gate 		pr_err("%s\n", clnt_sperrno(err));
2767c478bd9Sstevel@tonic-gate 		exit(1);
2777c478bd9Sstevel@tonic-gate 	}
2787c478bd9Sstevel@tonic-gate 
2797c478bd9Sstevel@tonic-gate 	if (ex == NULL) {
2807c478bd9Sstevel@tonic-gate 		printf(gettext("no exported file systems for %s\n"), host);
2817c478bd9Sstevel@tonic-gate 	} else {
2827c478bd9Sstevel@tonic-gate 		printf(gettext("export list for %s:\n"), host);
2837c478bd9Sstevel@tonic-gate 	}
2847c478bd9Sstevel@tonic-gate 	max = 0;
2857c478bd9Sstevel@tonic-gate 	for (e = ex; e != NULL; e = e->ex_next) {
2867c478bd9Sstevel@tonic-gate 		if (strlen(e->ex_dir) > max) {
2877c478bd9Sstevel@tonic-gate 			max = strlen(e->ex_dir);
2887c478bd9Sstevel@tonic-gate 		}
2897c478bd9Sstevel@tonic-gate 	}
2907c478bd9Sstevel@tonic-gate 	while (ex) {
2917c478bd9Sstevel@tonic-gate 		printf("%-*s ", max, ex->ex_dir);
2927c478bd9Sstevel@tonic-gate 		gr = ex->ex_groups;
2937c478bd9Sstevel@tonic-gate 		if (gr == NULL) {
2947c478bd9Sstevel@tonic-gate 			printf(gettext("(everyone)"));
2957c478bd9Sstevel@tonic-gate 		}
2967c478bd9Sstevel@tonic-gate 		while (gr) {
2977c478bd9Sstevel@tonic-gate 			printf("%s", gr->gr_name);
2987c478bd9Sstevel@tonic-gate 			gr = gr->gr_next;
2997c478bd9Sstevel@tonic-gate 			if (gr) {
3007c478bd9Sstevel@tonic-gate 				printf(",");
3017c478bd9Sstevel@tonic-gate 			}
3027c478bd9Sstevel@tonic-gate 		}
3037c478bd9Sstevel@tonic-gate 		printf("\n");
3047c478bd9Sstevel@tonic-gate 		ex = ex->ex_next;
3057c478bd9Sstevel@tonic-gate 	}
3067c478bd9Sstevel@tonic-gate }
307