[unix-history] / usr.bin / showmount / showmount.c

/*
 * 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);
}
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) 1989 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* This code is derived from software contributed to Berkeley by
	6	* Rick Macklem at The University of Guelph.
	7	*
	8	* Redistribution and use in source and binary forms, with or without
	9	* modification, are permitted provided that the following conditions
	10	* are met:
	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.
	23	*
	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
	34	* SUCH DAMAGE.
	35	*/
	36
	37	#ifndef lint
	38	char copyright[] =
	39	"@(#) Copyright (c) 1989 Regents of the University of California.\n\
	40	All rights reserved.\n";
	41	#endif not lint
	42
	43	#ifndef lint
	44	static char sccsid[] = "@(#)showmount.c 6.5 (Berkeley) 3/1/91";
	45	#endif not lint
	46
	47	#include <sys/types.h>
	48	#include <sys/file.h>
	49	#include <sys/socket.h>
	50	#include <sys/socketvar.h>
	51	#include <netdb.h>
	52	#include <rpc/rpc.h>
	53	#include <rpc/pmap_clnt.h>
	54	#include <rpc/pmap_prot.h>
	55	#include <nfs/rpcv2.h>
	56	#include <stdio.h>
	57	#include <string.h>
	58
	59	/* Constant defs */
	60	#define ALL 1
	61	#define DIRS 2
	62
	63	#define DODUMP 0x1
	64	#define DOEXPORTS 0x2
65
66	struct mountlist {
67	struct mountlist *ml_left;
68	struct mountlist *ml_right;
69	char ml_host[RPCMNT_NAMELEN+1];
70	char ml_dirp[RPCMNT_PATHLEN+1];
71	};
72
73	struct grouplist {
74	struct grouplist *gr_next;
75	char gr_name[RPCMNT_NAMELEN+1];
76	};
77
78	struct exportslist {
79	struct exportslist *ex_next;
80	struct grouplist *ex_groups;
81	char ex_dirp[RPCMNT_PATHLEN+1];
82	};
83
84	static struct mountlist *mntdump;
85	static struct exportslist *exports;
86	static int type = 0;
87	int xdr_mntdump(), xdr_exports();
88
89	/*
90	* This command queries the NFS mount daemon for it's mount list and/or
91	* it's exports list and prints them out.
92	* See "NFS: Network File System Protocol Specification, RFC1094, Appendix A"
93	* for detailed information on the protocol.
94	*/
95	main(argc, argv)
96	int argc;
97	char **argv;
98	{
99	register struct mountlist *mntp;
100	register struct exportslist *exp;
101	register struct grouplist *grp;
102	extern char *optarg;
103	extern int optind;
104	register int rpcs = 0;
105	char ch;
106	char *host;
107	int estat;
108
109	while ((ch = getopt(argc, argv, "ade")) != EOF)
110	switch((char)ch) {
111	case 'a':
112	if (type == 0) {
113	type = ALL;
114	rpcs \|= DODUMP;
115	} else
116	usage();
117	break;
118	case 'd':
119	if (type == 0) {
120	type = DIRS;
121	rpcs \|= DODUMP;
122	} else
123	usage();
124	break;
125	case 'e':
126	rpcs \|= DOEXPORTS;
127	break;
128	case '?':
129	default:
130	usage();
131	}
132	argc -= optind;
133	argv += optind;
134
135	if (argc > 0)
136	host = *argv;
137	else
138	host = "localhost";
139
140	if (rpcs == 0)
141	rpcs = DODUMP;
142
143	if (rpcs & DODUMP)
144	if ((estat = callrpc(host, RPCPROG_MNT, RPCMNT_VER1,
145	RPCMNT_DUMP, xdr_void, (char *)0,
146	xdr_mntdump, (char *)&mntdump)) != 0) {
147	clnt_perrno(estat);
148	fprintf(stderr, "Can't do Mountdump rpc\n");
149	exit(1);
150	}
151	if (rpcs & DOEXPORTS)
152	if ((estat = callrpc(host, RPCPROG_MNT, RPCMNT_VER1,
153	RPCMNT_EXPORT, xdr_void, (char *)0,
154	xdr_exports, (char *)&exports)) != 0) {
155	clnt_perrno(estat);
156	fprintf(stderr, "Can't do Exports rpc\n");
157	exit(1);
158	}
159
160	/* Now just print out the results */
161	if (rpcs & DODUMP) {
162	switch (type) {
163	case ALL:
164	printf("All mount points on %s:\n", host);
165	break;
166	case DIRS:
167	printf("Directories on %s:\n", host);
168	break;
169	default:
170	printf("Hosts on %s:\n", host);
171	break;
172	};
173	print_dump(mntdump);
174	}
175	if (rpcs & DOEXPORTS) {
176	printf("Exports list on %s:\n", host);
177	exp = exports;
178	while (exp) {
179	printf("%-35s", exp->ex_dirp);
180	grp = exp->ex_groups;
181	if (grp == NULL) {
182	printf("Everyone\n");
183	} else {
184	while (grp) {
185	printf("%s ", grp->gr_name);
186	grp = grp->gr_next;
187	}
188	printf("\n");
189	}
190	exp = exp->ex_next;
191	}
192	}
193	}
194
195	/*
196	* Xdr routine for retrieving the mount dump list
197	*/
198	xdr_mntdump(xdrsp, mlp)
199	XDR *xdrsp;
200	struct mountlist **mlp;
201	{
202	register struct mountlist *mp;
203	register struct mountlist *tp;
204	register struct mountlist **otp;
205	int val, val2;
206	int bool;
207	char *strp;
208
209	mlp = (struct mountlist )0;
210	if (!xdr_bool(xdrsp, &bool))
211	return (0);
212	while (bool) {
213	mp = (struct mountlist *)malloc(sizeof(struct mountlist));
214	if (mp == NULL)
215	return (0);
216	mp->ml_left = mp->ml_right = (struct mountlist *)0;
217	strp = mp->ml_host;
218	if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN))
219	return (0);
220	strp = mp->ml_dirp;
221	if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
222	return (0);
223
224	/*
225	* Build a binary tree on sorted order of either host or dirp.
226	* Drop any duplications.
227	*/
228	if (*mlp == NULL) {
229	*mlp = mp;
230	} else {
231	tp = *mlp;
232	while (tp) {
233	val = strcmp(mp->ml_host, tp->ml_host);
234	val2 = strcmp(mp->ml_dirp, tp->ml_dirp);
235	switch (type) {
236	case ALL:
237	if (val == 0) {
238	if (val2 == 0) {
239	free((caddr_t)mp);
240	goto next;
241	}
242	val = val2;
243	}
244	break;
245	case DIRS:
246	if (val2 == 0) {
247	free((caddr_t)mp);
248	goto next;
249	}
250	val = val2;
251	break;
252	default:
253	if (val == 0) {
254	free((caddr_t)mp);
255	goto next;
256	}
257	break;
258	};
259	if (val < 0) {
260	otp = &tp->ml_left;
261	tp = tp->ml_left;
262	} else {
263	otp = &tp->ml_right;
264	tp = tp->ml_right;
265	}
266	}
267	*otp = mp;
268	}
269	next:
270	if (!xdr_bool(xdrsp, &bool))
271	return (0);
272	}
273	return (1);
274	}
275
276	/*
277	* Xdr routine to retrieve exports list
278	*/
279	xdr_exports(xdrsp, exp)
280	XDR *xdrsp;
281	struct exportslist **exp;
282	{
283	register struct exportslist *ep;
284	register struct grouplist *gp;
285	int bool, grpbool;
286	char *strp;
287
288	exp = (struct exportslist )0;
289	if (!xdr_bool(xdrsp, &bool))
290	return (0);
291	while (bool) {
292	ep = (struct exportslist *)malloc(sizeof(struct exportslist));
293	if (ep == NULL)
294	return (0);
295	ep->ex_groups = (struct grouplist *)0;
296	strp = ep->ex_dirp;
297	if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
298	return (0);
299	if (!xdr_bool(xdrsp, &grpbool))
300	return (0);
301	while (grpbool) {
302	gp = (struct grouplist *)malloc(sizeof(struct grouplist));
303	if (gp == NULL)
304	return (0);
305	strp = gp->gr_name;
306	if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN))
307	return (0);
308	gp->gr_next = ep->ex_groups;
309	ep->ex_groups = gp;
310	if (!xdr_bool(xdrsp, &grpbool))
311	return (0);
312	}
313	ep->ex_next = *exp;
314	*exp = ep;
315	if (!xdr_bool(xdrsp, &bool))
316	return (0);
317	}
318	return (1);
319	}
320
321	usage()
322	{
323	fprintf(stderr, "usage: showmount [-ade] host\n");
324	exit(1);
325	}
326
327	/*
328	* Print the binary tree in inorder so that output is sorted.
329	*/
330	print_dump(mp)
331	struct mountlist *mp;
332	{
333
334	if (mp == NULL)
335	return;
336	if (mp->ml_left)
337	print_dump(mp->ml_left);
338	switch (type) {
339	case ALL:
340	printf("%s:%s\n", mp->ml_host, mp->ml_dirp);
341	break;
342	case DIRS:
343	printf("%s\n", mp->ml_dirp);
344	break;
345	default:
346	printf("%s\n", mp->ml_host);
347	break;
348	};
349	if (mp->ml_right)
350	print_dump(mp->ml_right);
351	}