![[BACK]](/icons/back.gif){kind=icon}
Return to showmount.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / showmount|
Return to showmount.c CVS log | Up to [local] / src / usr.bin / showmount |
1.7 ! deraadt 1: /* $OpenBSD: showmount.c,v 1.6 1997/02/11 18:10:57 deraadt Exp $ */
1.3 deraadt 2: /* $NetBSD: showmount.c,v 1.7 1996/05/01 18:14:10 cgd Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1989, 1993, 1995
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This code is derived from software contributed to Berkeley by
9: * Rick Macklem at The University of Guelph.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
14: * 1. Redistributions of source code must retain the above copyright
15: * notice, this list of conditions and the following disclaimer.
16: * 2. Redistributions in binary form must reproduce the above copyright
17: * notice, this list of conditions and the following disclaimer in the
18: * documentation and/or other materials provided with the distribution.
19: * 3. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the University of
22: * California, Berkeley and its contributors.
23: * 4. Neither the name of the University nor the names of its contributors
24: * may be used to endorse or promote products derived from this software
25: * without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37: * SUCH DAMAGE.
38: */
39:
40: #ifndef lint
41: static char copyright[] =
42: "@(#) Copyright (c) 1989, 1993, 1995\n\
43: The Regents of the University of California. All rights reserved.\n";
44: #endif not lint
45:
46: #ifndef lint
47: #if 0
48: static char sccsid[] = "@(#)showmount.c 8.3 (Berkeley) 3/29/95";
49: #endif
1.7 ! deraadt 50: static char rcsid[] = "$OpenBSD: showmount.c,v 1.6 1997/02/11 18:10:57 deraadt Exp $";
1.1 deraadt 51: #endif not lint
52:
53: #include <sys/types.h>
54: #include <sys/file.h>
55: #include <sys/socket.h>
56: #include <sys/socketvar.h>
57:
58: #include <netdb.h>
59: #include <rpc/rpc.h>
60: #include <rpc/pmap_clnt.h>
61: #include <rpc/pmap_prot.h>
62: #include <nfs/rpcv2.h>
63:
64: #include <stdio.h>
65: #include <stdlib.h>
66: #include <string.h>
67: #include <unistd.h>
1.5 deraadt 68: #include <vis.h>
1.1 deraadt 69:
70: /* Constant defs */
71: #define ALL 1
72: #define DIRS 2
73:
74: #define DODUMP 0x1
75: #define DOEXPORTS 0x2
76:
77: struct mountlist {
78: struct mountlist *ml_left;
79: struct mountlist *ml_right;
80: char ml_host[RPCMNT_NAMELEN+1];
81: char ml_dirp[RPCMNT_PATHLEN+1];
82: };
83:
84: struct grouplist {
85: struct grouplist *gr_next;
86: char gr_name[RPCMNT_NAMELEN+1];
87: };
88:
89: struct exportslist {
90: struct exportslist *ex_next;
91: struct grouplist *ex_groups;
92: char ex_dirp[RPCMNT_PATHLEN+1];
93: };
94:
95: static struct mountlist *mntdump;
96: static struct exportslist *exports;
97: static int type = 0;
98:
99: void print_dump __P((struct mountlist *));
100: void usage __P((void));
101: int xdr_mntdump __P((XDR *, struct mountlist **));
102: int xdr_exports __P((XDR *, struct exportslist **));
103:
104: /*
105: * This command queries the NFS mount daemon for it's mount list and/or
106: * it's exports list and prints them out.
107: * See "NFS: Network File System Protocol Specification, RFC1094, Appendix A"
108: * and the "Network File System Protocol XXX.."
109: * for detailed information on the protocol.
110: */
111: int
112: main(argc, argv)
113: int argc;
114: char **argv;
115: {
116: struct exportslist *exp;
117: struct grouplist *grp;
1.6 deraadt 118: struct sockaddr_in clnt_sin;
119: struct hostent *hp;
120: struct timeval timeout;
121: int rpcs = 0, mntvers = 1;
122: enum clnt_stat estat;
123: CLIENT *client;
1.2 deraadt 124: char *host;
1.6 deraadt 125: int ch, clnt_sock;
1.1 deraadt 126:
1.2 deraadt 127: while ((ch = getopt(argc, argv, "ade3")) != -1)
1.1 deraadt 128: switch((char)ch) {
129: case 'a':
130: if (type == 0) {
131: type = ALL;
132: rpcs |= DODUMP;
133: } else
134: usage();
135: break;
136: case 'd':
137: if (type == 0) {
138: type = DIRS;
139: rpcs |= DODUMP;
140: } else
141: usage();
142: break;
143: case 'e':
144: rpcs |= DOEXPORTS;
145: break;
146: case '3':
147: mntvers = 3;
148: break;
149: case '?':
150: default:
151: usage();
152: }
153: argc -= optind;
154: argv += optind;
155:
156: if (argc > 0)
157: host = *argv;
158: else
159: host = "localhost";
160:
161: if (rpcs == 0)
162: rpcs = DODUMP;
163:
1.6 deraadt 164: if ((hp = gethostbyname(host)) == NULL) {
165: fprintf(stderr, "showmount: unknown host %s\n", host);
166: exit(1);
167: }
168: bzero(&clnt_sin, sizeof clnt_sin);
169: clnt_sin.sin_len = sizeof clnt_sin;
170: clnt_sin.sin_family = AF_INET;
171: bcopy(hp->h_addr, (char *)&clnt_sin.sin_addr, hp->h_length);
172: clnt_sock = RPC_ANYSOCK;
173: client = clnttcp_create(&clnt_sin, RPCPROG_MNT, mntvers,
174: &clnt_sock, 0, 0);
175: if (client == NULL) {
176: clnt_pcreateerror("showmount: clnttcp_create");
177: exit(1);
178: }
179: timeout.tv_sec = 30;
180: timeout.tv_usec = 0;
181:
182: if (rpcs & DODUMP) {
183: estat = clnt_call(client, RPCMNT_DUMP, xdr_void, (char *)0,
184: xdr_mntdump, (char *)&mntdump, timeout);
185: if (estat != RPC_SUCCESS) {
1.3 deraadt 186: fprintf(stderr, "showmount: Can't do Mountdump rpc: ");
1.1 deraadt 187: clnt_perrno(estat);
188: exit(1);
189: }
1.6 deraadt 190: }
191: if (rpcs & DOEXPORTS) {
192: estat = clnt_call(client, RPCMNT_EXPORT, xdr_void, (char *)0,
193: xdr_exports, (char *)&exports, timeout);
194: if (estat != RPC_SUCCESS) {
1.3 deraadt 195: fprintf(stderr, "showmount: Can't do Exports rpc: ");
1.1 deraadt 196: clnt_perrno(estat);
197: exit(1);
198: }
1.6 deraadt 199: }
1.1 deraadt 200:
201: /* Now just print out the results */
202: if (rpcs & DODUMP) {
203: switch (type) {
204: case ALL:
205: printf("All mount points on %s:\n", host);
206: break;
207: case DIRS:
208: printf("Directories on %s:\n", host);
209: break;
210: default:
211: printf("Hosts on %s:\n", host);
212: break;
213: };
214: print_dump(mntdump);
215: }
216: if (rpcs & DOEXPORTS) {
1.5 deraadt 217: char vp[(RPCMNT_PATHLEN+1)*4];
218: char vn[(RPCMNT_NAMELEN+1)*4];
219:
1.1 deraadt 220: printf("Exports list on %s:\n", host);
221: exp = exports;
222: while (exp) {
1.5 deraadt 223: strvis(vp, exp->ex_dirp, VIS_CSTYLE);
224: printf("%-35s", vp);
1.1 deraadt 225: grp = exp->ex_groups;
226: if (grp == NULL) {
227: printf("Everyone\n");
228: } else {
229: while (grp) {
1.5 deraadt 230: strvis(vn, grp->gr_name, VIS_CSTYLE);
231: printf("%s ", vn);
1.1 deraadt 232: grp = grp->gr_next;
233: }
234: printf("\n");
235: }
236: exp = exp->ex_next;
237: }
238: }
239:
240: exit(0);
241: }
242:
243: /*
244: * Xdr routine for retrieving the mount dump list
245: */
246: int
247: xdr_mntdump(xdrsp, mlp)
248: XDR *xdrsp;
249: struct mountlist **mlp;
250: {
1.7 ! deraadt 251: struct mountlist *mp, **otp = NULL, *tp;
1.1 deraadt 252: int bool, val, val2;
253: char *strp;
254:
255: *mlp = (struct mountlist *)0;
256: if (!xdr_bool(xdrsp, &bool))
257: return (0);
258: while (bool) {
259: mp = (struct mountlist *)malloc(sizeof(struct mountlist));
260: if (mp == NULL)
261: return (0);
262: mp->ml_left = mp->ml_right = (struct mountlist *)0;
263: strp = mp->ml_host;
264: if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN))
265: return (0);
266: strp = mp->ml_dirp;
267: if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
268: return (0);
269:
270: /*
271: * Build a binary tree on sorted order of either host or dirp.
272: * Drop any duplications.
273: */
274: if (*mlp == NULL) {
275: *mlp = mp;
276: } else {
277: tp = *mlp;
278: while (tp) {
279: val = strcmp(mp->ml_host, tp->ml_host);
280: val2 = strcmp(mp->ml_dirp, tp->ml_dirp);
281: switch (type) {
282: case ALL:
283: if (val == 0) {
284: if (val2 == 0) {
285: free((caddr_t)mp);
286: goto next;
287: }
288: val = val2;
289: }
290: break;
291: case DIRS:
292: if (val2 == 0) {
293: free((caddr_t)mp);
294: goto next;
295: }
296: val = val2;
297: break;
298: default:
299: if (val == 0) {
300: free((caddr_t)mp);
301: goto next;
302: }
303: break;
1.7 ! deraadt 304: }
1.1 deraadt 305: if (val < 0) {
306: otp = &tp->ml_left;
307: tp = tp->ml_left;
308: } else {
309: otp = &tp->ml_right;
310: tp = tp->ml_right;
311: }
312: }
313: *otp = mp;
314: }
315: next:
316: if (!xdr_bool(xdrsp, &bool))
317: return (0);
318: }
319: return (1);
320: }
321:
322: /*
323: * Xdr routine to retrieve exports list
324: */
325: int
326: xdr_exports(xdrsp, exp)
327: XDR *xdrsp;
328: struct exportslist **exp;
329: {
330: struct exportslist *ep;
331: struct grouplist *gp;
332: int bool, grpbool;
333: char *strp;
334:
335: *exp = (struct exportslist *)0;
336: if (!xdr_bool(xdrsp, &bool))
337: return (0);
338: while (bool) {
339: ep = (struct exportslist *)malloc(sizeof(struct exportslist));
340: if (ep == NULL)
341: return (0);
342: ep->ex_groups = (struct grouplist *)0;
343: strp = ep->ex_dirp;
344: if (!xdr_string(xdrsp, &strp, RPCMNT_PATHLEN))
345: return (0);
346: if (!xdr_bool(xdrsp, &grpbool))
347: return (0);
348: while (grpbool) {
1.6 deraadt 349: gp = (struct grouplist *)malloc(
350: sizeof(struct grouplist));
1.1 deraadt 351: if (gp == NULL)
352: return (0);
353: strp = gp->gr_name;
354: if (!xdr_string(xdrsp, &strp, RPCMNT_NAMELEN))
355: return (0);
356: gp->gr_next = ep->ex_groups;
357: ep->ex_groups = gp;
358: if (!xdr_bool(xdrsp, &grpbool))
359: return (0);
360: }
361: ep->ex_next = *exp;
362: *exp = ep;
363: if (!xdr_bool(xdrsp, &bool))
364: return (0);
365: }
366: return (1);
367: }
368:
369: void
370: usage()
371: {
372:
1.3 deraadt 373: fprintf(stderr, "usage: showmount [-ade3] host\n");
1.1 deraadt 374: exit(1);
375: }
376:
377: /*
378: * Print the binary tree in inorder so that output is sorted.
379: */
380: void
381: print_dump(mp)
382: struct mountlist *mp;
383: {
1.5 deraadt 384: char vn[(RPCMNT_NAMELEN+1)*4];
385: char vp[(RPCMNT_PATHLEN+1)*4];
1.1 deraadt 386:
387: if (mp == NULL)
388: return;
389: if (mp->ml_left)
390: print_dump(mp->ml_left);
391: switch (type) {
392: case ALL:
1.5 deraadt 393: strvis(vn, mp->ml_host, VIS_CSTYLE);
394: strvis(vp, mp->ml_dirp, VIS_CSTYLE);
395: printf("%s:%s\n", vn, vp);
1.1 deraadt 396: break;
397: case DIRS:
1.5 deraadt 398: strvis(vp, mp->ml_dirp, VIS_CSTYLE);
399: printf("%s\n", vp);
1.1 deraadt 400: break;
401: default:
1.5 deraadt 402: strvis(vn, mp->ml_host, VIS_CSTYLE);
403: printf("%s\n", vn);
1.1 deraadt 404: break;
405: };
406: if (mp->ml_right)
407: print_dump(mp->ml_right);
408: }