[unix-history] / usr / src / sbin / restore / main.c

/*
 * Copyright (c) 1983 The Regents of the University of California.
 * All rights reserved.
 *
 * 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) 1983 The Regents of the University of California.\n\
 All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)main.c	5.8 (Berkeley) 6/1/90";
#endif /* not lint */

/*
 *	Modified to recursively extract all files within a subtree
 *	(supressed by the h option) and recreate the heirarchical
 *	structure of that subtree and move extracted files to their
 *	proper homes (supressed by the m option).
 *	Includes the s (skip files) option for use with multiple
 *	dumps on a single tape.
 *	8/29/80		by Mike Litzkow
 *
 *	Modified to work on the new file system and to recover from
 *	tape read errors.
 *	1/19/82		by Kirk McKusick
 *
 *	Full incremental restore running entirely in user code and
 *	interactive tape browser.
 *	1/19/83		by Kirk McKusick
 */

#include "restore.h"
#include <protocols/dumprestore.h>
#include <sys/signal.h>
#include "pathnames.h"

int	bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0;
int	hflag = 1, mflag = 1, Nflag = 0;
char	command = '\0';
long	dumpnum = 1;
long	volno = 0;
long	ntrec;
char	*dumpmap;
char	*clrimap;
ino_t	maxino;
time_t	dumptime;
time_t	dumpdate;
FILE 	*terminal;

main(argc, argv)
	int argc;
	char *argv[];
{
	register char *cp;
	ino_t ino;
	char *inputdev = _PATH_DEFTAPE;
	char *symtbl = "./restoresymtable";
	char name[MAXPATHLEN];
	void onintr();

	if (signal(SIGINT, onintr) == SIG_IGN)
		(void) signal(SIGINT, SIG_IGN);
	if (signal(SIGTERM, onintr) == SIG_IGN)
		(void) signal(SIGTERM, SIG_IGN);
	setlinebuf(stderr);
	if (argc < 2) {
usage:
		fprintf(stderr, "Usage:\n%s%s%s%s%s",
			"\trestore tfhsvy [file file ...]\n",
			"\trestore xfhmsvy [file file ...]\n",
			"\trestore ifhmsvy\n",
			"\trestore rfsvy\n",
			"\trestore Rfsvy\n");
		done(1);
	}
	argv++;
	argc -= 2;
	command = '\0';
	for (cp = *argv++; *cp; cp++) {
		switch (*cp) {
		case '-':
			break;
		case 'c':
			cvtflag++;
			break;
		case 'd':
			dflag++;
			break;
		case 'h':
			hflag = 0;
			break;
		case 'm':
			mflag = 0;
			break;
		case 'N':
			Nflag++;
			break;
		case 'v':
			vflag++;
			break;
		case 'y':
			yflag++;
			break;
		case 'f':
			if (argc < 1) {
				fprintf(stderr, "missing device specifier\n");
				done(1);
			}
			inputdev = *argv++;
			argc--;
			break;
		case 'b':
			/*
			 * change default tape blocksize
			 */
			bflag++;
			if (argc < 1) {
				fprintf(stderr, "missing block size\n");
				done(1);
			}
			ntrec = atoi(*argv++);
			if (ntrec <= 0) {
				fprintf(stderr, "Block size must be a positive integer\n");
				done(1);
			}
			argc--;
			break;
		case 's':
			/*
			 * dumpnum (skip to) for multifile dump tapes
			 */
			if (argc < 1) {
				fprintf(stderr, "missing dump number\n");
				done(1);
			}
			dumpnum = atoi(*argv++);
			if (dumpnum <= 0) {
				fprintf(stderr, "Dump number must be a positive integer\n");
				done(1);
			}
			argc--;
			break;
		case 't':
		case 'R':
		case 'r':
		case 'x':
		case 'i':
			if (command != '\0') {
				fprintf(stderr,
					"%c and %c are mutually exclusive\n",
					*cp, command);
				goto usage;
			}
			command = *cp;
			break;
		default:
			fprintf(stderr, "Bad key character %c\n", *cp);
			goto usage;
		}
	}
	if (command == '\0') {
		fprintf(stderr, "must specify i, t, r, R, or x\n");
		goto usage;
	}
	setinput(inputdev);
	if (argc == 0) {
		argc = 1;
		*--argv = ".";
	}
	switch (command) {
	/*
	 * Interactive mode.
	 */
	case 'i':
		setup();
		extractdirs(1);
		initsymtable((char *)0);
		runcmdshell();
		done(0);
	/*
	 * Incremental restoration of a file system.
	 */
	case 'r':
		setup();
		if (dumptime > 0) {
			/*
			 * This is an incremental dump tape.
			 */
			vprintf(stdout, "Begin incremental restore\n");
			initsymtable(symtbl);
			extractdirs(1);
			removeoldleaves();
			vprintf(stdout, "Calculate node updates.\n");
			treescan(".", ROOTINO, nodeupdates);
			findunreflinks();
			removeoldnodes();
		} else {
			/*
			 * This is a level zero dump tape.
			 */
			vprintf(stdout, "Begin level 0 restore\n");
			initsymtable((char *)0);
			extractdirs(1);
			vprintf(stdout, "Calculate extraction list.\n");
			treescan(".", ROOTINO, nodeupdates);
		}
		createleaves(symtbl);
		createlinks();
		setdirmodes();
		checkrestore();
		if (dflag) {
			vprintf(stdout, "Verify the directory structure\n");
			treescan(".", ROOTINO, verifyfile);
		}
		dumpsymtable(symtbl, (long)1);
		done(0);
	/*
	 * Resume an incremental file system restoration.
	 */
	case 'R':
		initsymtable(symtbl);
		skipmaps();
		skipdirs();
		createleaves(symtbl);
		createlinks();
		setdirmodes();
		checkrestore();
		dumpsymtable(symtbl, (long)1);
		done(0);
	/*
	 * List contents of tape.
	 */
	case 't':
		setup();
		extractdirs(0);
		initsymtable((char *)0);
		while (argc--) {
			canon(*argv++, name);
			ino = dirlookup(name);
			if (ino == 0)
				continue;
			treescan(name, ino, listfile);
		}
		done(0);
	/*
	 * Batch extraction of tape contents.
	 */
	case 'x':
		setup();
		extractdirs(1);
		initsymtable((char *)0);
		while (argc--) {
			canon(*argv++, name);
			ino = dirlookup(name);
			if (ino == 0)
				continue;
			if (mflag)
				pathcheck(name);
			treescan(name, ino, addfile);
		}
		createfiles();
		createlinks();
		setdirmodes();
		if (dflag)
			checkrestore();
		done(0);
	}
}
Commit	Line	Data
17a18c5e WJ	1	/*
	2	* Copyright (c) 1983 The Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. All advertising materials mentioning features or use of this software
	14	* must display the following acknowledgement:
	15	* This product includes software developed by the University of
	16	* California, Berkeley and its contributors.
	17	* 4. Neither the name of the University nor the names of its contributors
	18	* may be used to endorse or promote products derived from this software
	19	* without specific prior written permission.
	20	*
	21	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	22	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	23	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	24	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	25	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	26	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	27	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	28	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	29	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	30	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	31	* SUCH DAMAGE.
	32	*/
	33
	34	#ifndef lint
	35	char copyright[] =
	36	"@(#) Copyright (c) 1983 The Regents of the University of California.\n\
	37	All rights reserved.\n";
	38	#endif /* not lint */
	39
	40	#ifndef lint
	41	static char sccsid[] = "@(#)main.c 5.8 (Berkeley) 6/1/90";
	42	#endif /* not lint */
	43
	44	/*
	45	* Modified to recursively extract all files within a subtree
	46	* (supressed by the h option) and recreate the heirarchical
	47	* structure of that subtree and move extracted files to their
	48	* proper homes (supressed by the m option).
	49	* Includes the s (skip files) option for use with multiple
	50	* dumps on a single tape.
	51	* 8/29/80 by Mike Litzkow
	52	*
	53	* Modified to work on the new file system and to recover from
	54	* tape read errors.
	55	* 1/19/82 by Kirk McKusick
	56	*
	57	* Full incremental restore running entirely in user code and
	58	* interactive tape browser.
	59	* 1/19/83 by Kirk McKusick
	60	*/
	61
	62	#include "restore.h"
	63	#include <protocols/dumprestore.h>
	64	#include <sys/signal.h>
65	#include "pathnames.h"
66
67	int bflag = 0, cvtflag = 0, dflag = 0, vflag = 0, yflag = 0;
68	int hflag = 1, mflag = 1, Nflag = 0;
69	char command = '\0';
70	long dumpnum = 1;
71	long volno = 0;
72	long ntrec;
73	char *dumpmap;
74	char *clrimap;
75	ino_t maxino;
76	time_t dumptime;
77	time_t dumpdate;
78	FILE *terminal;
79
80	main(argc, argv)
81	int argc;
82	char *argv[];
83	{
84	register char *cp;
85	ino_t ino;
86	char *inputdev = _PATH_DEFTAPE;
87	char *symtbl = "./restoresymtable";
88	char name[MAXPATHLEN];
89	void onintr();
90
91	if (signal(SIGINT, onintr) == SIG_IGN)
92	(void) signal(SIGINT, SIG_IGN);
93	if (signal(SIGTERM, onintr) == SIG_IGN)
94	(void) signal(SIGTERM, SIG_IGN);
95	setlinebuf(stderr);
96	if (argc < 2) {
97	usage:
98	fprintf(stderr, "Usage:\n%s%s%s%s%s",
99	"\trestore tfhsvy [file file ...]\n",
100	"\trestore xfhmsvy [file file ...]\n",
101	"\trestore ifhmsvy\n",
102	"\trestore rfsvy\n",
103	"\trestore Rfsvy\n");
104	done(1);
105	}
106	argv++;
107	argc -= 2;
108	command = '\0';
109	for (cp = argv++; cp; cp++) {
110	switch (*cp) {
111	case '-':
112	break;
113	case 'c':
114	cvtflag++;
115	break;
116	case 'd':
117	dflag++;
118	break;
119	case 'h':
120	hflag = 0;
121	break;
122	case 'm':
123	mflag = 0;
124	break;
125	case 'N':
126	Nflag++;
127	break;
128	case 'v':
129	vflag++;
130	break;
131	case 'y':
132	yflag++;
133	break;
134	case 'f':
135	if (argc < 1) {
136	fprintf(stderr, "missing device specifier\n");
137	done(1);
138	}
139	inputdev = *argv++;
140	argc--;
141	break;
142	case 'b':
143	/*
144	* change default tape blocksize
145	*/
146	bflag++;
147	if (argc < 1) {
148	fprintf(stderr, "missing block size\n");
149	done(1);
150	}
151	ntrec = atoi(*argv++);
152	if (ntrec <= 0) {
153	fprintf(stderr, "Block size must be a positive integer\n");
154	done(1);
155	}
156	argc--;
157	break;
158	case 's':
159	/*
160	* dumpnum (skip to) for multifile dump tapes
161	*/
162	if (argc < 1) {
163	fprintf(stderr, "missing dump number\n");
164	done(1);
165	}
166	dumpnum = atoi(*argv++);
167	if (dumpnum <= 0) {
168	fprintf(stderr, "Dump number must be a positive integer\n");
169	done(1);
170	}
171	argc--;
172	break;
173	case 't':
174	case 'R':
175	case 'r':
176	case 'x':
177	case 'i':
178	if (command != '\0') {
179	fprintf(stderr,
180	"%c and %c are mutually exclusive\n",
181	*cp, command);
182	goto usage;
183	}
184	command = *cp;
185	break;
186	default:
187	fprintf(stderr, "Bad key character %c\n", *cp);
188	goto usage;
189	}
190	}
191	if (command == '\0') {
192	fprintf(stderr, "must specify i, t, r, R, or x\n");
193	goto usage;
194	}
195	setinput(inputdev);
196	if (argc == 0) {
197	argc = 1;
198	*--argv = ".";
199	}
200	switch (command) {
201	/*
202	* Interactive mode.
203	*/
204	case 'i':
205	setup();
206	extractdirs(1);
207	initsymtable((char *)0);
208	runcmdshell();
209	done(0);
210	/*
211	* Incremental restoration of a file system.
212	*/
213	case 'r':
214	setup();
215	if (dumptime > 0) {
216	/*
217	* This is an incremental dump tape.
218	*/
219	vprintf(stdout, "Begin incremental restore\n");
220	initsymtable(symtbl);
221	extractdirs(1);
222	removeoldleaves();
223	vprintf(stdout, "Calculate node updates.\n");
224	treescan(".", ROOTINO, nodeupdates);
225	findunreflinks();
226	removeoldnodes();
227	} else {
228	/*
229	* This is a level zero dump tape.
230	*/
231	vprintf(stdout, "Begin level 0 restore\n");
232	initsymtable((char *)0);
233	extractdirs(1);
234	vprintf(stdout, "Calculate extraction list.\n");
235	treescan(".", ROOTINO, nodeupdates);
236	}
237	createleaves(symtbl);
238	createlinks();
239	setdirmodes();
240	checkrestore();
241	if (dflag) {
242	vprintf(stdout, "Verify the directory structure\n");
243	treescan(".", ROOTINO, verifyfile);
244	}
245	dumpsymtable(symtbl, (long)1);
246	done(0);
247	/*
248	* Resume an incremental file system restoration.
249	*/
250	case 'R':
251	initsymtable(symtbl);
252	skipmaps();
253	skipdirs();
254	createleaves(symtbl);
255	createlinks();
256	setdirmodes();
257	checkrestore();
258	dumpsymtable(symtbl, (long)1);
259	done(0);
260	/*
261	* List contents of tape.
262	*/
263	case 't':
264	setup();
265	extractdirs(0);
266	initsymtable((char *)0);
267	while (argc--) {
268	canon(*argv++, name);
269	ino = dirlookup(name);
270	if (ino == 0)
271	continue;
272	treescan(name, ino, listfile);
273	}
274	done(0);
275	/*
276	* Batch extraction of tape contents.
277	*/
278	case 'x':
279	setup();
280	extractdirs(1);
281	initsymtable((char *)0);
282	while (argc--) {
283	canon(*argv++, name);
284	ino = dirlookup(name);
285	if (ino == 0)
286	continue;
287	if (mflag)
288	pathcheck(name);
289	treescan(name, ino, addfile);
290	}
291	createfiles();
292	createlinks();
293	setdirmodes();
294	if (dflag)
295	checkrestore();
296	done(0);
297	}
298	}