xref: /freebsd/usr.sbin/makefs/walk.c (revision d347a0da971ec2362feeb8c8a613465e2f88b08b)
1d347a0daSSam Leffler /*	$NetBSD: walk.c,v 1.17 2004/06/20 22:20:18 jmc Exp $	*/
2d347a0daSSam Leffler 
3d347a0daSSam Leffler /*
4d347a0daSSam Leffler  * Copyright (c) 2001 Wasabi Systems, Inc.
5d347a0daSSam Leffler  * All rights reserved.
6d347a0daSSam Leffler  *
7d347a0daSSam Leffler  * Written by Luke Mewburn for Wasabi Systems, Inc.
8d347a0daSSam Leffler  *
9d347a0daSSam Leffler  * Redistribution and use in source and binary forms, with or without
10d347a0daSSam Leffler  * modification, are permitted provided that the following conditions
11d347a0daSSam Leffler  * are met:
12d347a0daSSam Leffler  * 1. Redistributions of source code must retain the above copyright
13d347a0daSSam Leffler  *    notice, this list of conditions and the following disclaimer.
14d347a0daSSam Leffler  * 2. Redistributions in binary form must reproduce the above copyright
15d347a0daSSam Leffler  *    notice, this list of conditions and the following disclaimer in the
16d347a0daSSam Leffler  *    documentation and/or other materials provided with the distribution.
17d347a0daSSam Leffler  * 3. All advertising materials mentioning features or use of this software
18d347a0daSSam Leffler  *    must display the following acknowledgement:
19d347a0daSSam Leffler  *      This product includes software developed for the NetBSD Project by
20d347a0daSSam Leffler  *      Wasabi Systems, Inc.
21d347a0daSSam Leffler  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22d347a0daSSam Leffler  *    or promote products derived from this software without specific prior
23d347a0daSSam Leffler  *    written permission.
24d347a0daSSam Leffler  *
25d347a0daSSam Leffler  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26d347a0daSSam Leffler  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27d347a0daSSam Leffler  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28d347a0daSSam Leffler  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
29d347a0daSSam Leffler  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30d347a0daSSam Leffler  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31d347a0daSSam Leffler  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32d347a0daSSam Leffler  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33d347a0daSSam Leffler  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34d347a0daSSam Leffler  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35d347a0daSSam Leffler  * POSSIBILITY OF SUCH DAMAGE.
36d347a0daSSam Leffler  */
37d347a0daSSam Leffler 
38d347a0daSSam Leffler /*
39d347a0daSSam Leffler  * The function link_check() was inspired from NetBSD's usr.bin/du/du.c,
40d347a0daSSam Leffler  * which has the following copyright notice:
41d347a0daSSam Leffler  *
42d347a0daSSam Leffler  *
43d347a0daSSam Leffler  * Copyright (c) 1989, 1993, 1994
44d347a0daSSam Leffler  *	The Regents of the University of California.  All rights reserved.
45d347a0daSSam Leffler  *
46d347a0daSSam Leffler  * This code is derived from software contributed to Berkeley by
47d347a0daSSam Leffler  * Chris Newcomb.
48d347a0daSSam Leffler  *
49d347a0daSSam Leffler  * Redistribution and use in source and binary forms, with or without
50d347a0daSSam Leffler  * modification, are permitted provided that the following conditions
51d347a0daSSam Leffler  * are met:
52d347a0daSSam Leffler  * 1. Redistributions of source code must retain the above copyright
53d347a0daSSam Leffler  *    notice, this list of conditions and the following disclaimer.
54d347a0daSSam Leffler  * 2. Redistributions in binary form must reproduce the above copyright
55d347a0daSSam Leffler  *    notice, this list of conditions and the following disclaimer in the
56d347a0daSSam Leffler  *    documentation and/or other materials provided with the distribution.
57d347a0daSSam Leffler  * 3. Neither the name of the University nor the names of its contributors
58d347a0daSSam Leffler  *    may be used to endorse or promote products derived from this software
59d347a0daSSam Leffler  *    without specific prior written permission.
60d347a0daSSam Leffler  *
61d347a0daSSam Leffler  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
62d347a0daSSam Leffler  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
63d347a0daSSam Leffler  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
64d347a0daSSam Leffler  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
65d347a0daSSam Leffler  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
66d347a0daSSam Leffler  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
67d347a0daSSam Leffler  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
68d347a0daSSam Leffler  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
69d347a0daSSam Leffler  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
70d347a0daSSam Leffler  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
71d347a0daSSam Leffler  * SUCH DAMAGE.
72d347a0daSSam Leffler  */
73d347a0daSSam Leffler 
74d347a0daSSam Leffler #include <sys/cdefs.h>
75d347a0daSSam Leffler __FBSDID("$FreeBSD$");
76d347a0daSSam Leffler 
77d347a0daSSam Leffler #include <sys/param.h>
78d347a0daSSam Leffler 
79d347a0daSSam Leffler #include <assert.h>
80d347a0daSSam Leffler #include <errno.h>
81d347a0daSSam Leffler #include <fcntl.h>
82d347a0daSSam Leffler #include <stdio.h>
83d347a0daSSam Leffler #include <dirent.h>
84d347a0daSSam Leffler #include <stdlib.h>
85d347a0daSSam Leffler #include <string.h>
86d347a0daSSam Leffler #include <unistd.h>
87d347a0daSSam Leffler 
88d347a0daSSam Leffler #include "makefs.h"
89d347a0daSSam Leffler 
90d347a0daSSam Leffler #include "mtree.h"
91d347a0daSSam Leffler #include "extern.h"		/* NB: mtree */
92d347a0daSSam Leffler 
93d347a0daSSam Leffler static	void	 apply_specdir(const char *, NODE *, fsnode *);
94d347a0daSSam Leffler static	void	 apply_specentry(const char *, NODE *, fsnode *);
95d347a0daSSam Leffler static	fsnode	*create_fsnode(const char *, struct stat *);
96d347a0daSSam Leffler static	fsinode	*link_check(fsinode *);
97d347a0daSSam Leffler 
98d347a0daSSam Leffler 
99d347a0daSSam Leffler /*
100d347a0daSSam Leffler  * walk_dir --
101d347a0daSSam Leffler  *	build a tree of fsnodes from `dir', with a parent fsnode of `parent'
102d347a0daSSam Leffler  *	(which may be NULL for the root of the tree).
103d347a0daSSam Leffler  *	each "level" is a directory, with the "." entry guaranteed to be
104d347a0daSSam Leffler  *	at the start of the list, and without ".." entries.
105d347a0daSSam Leffler  */
106d347a0daSSam Leffler fsnode *
107d347a0daSSam Leffler walk_dir(const char *dir, fsnode *parent)
108d347a0daSSam Leffler {
109d347a0daSSam Leffler 	fsnode		*first, *cur, *prev;
110d347a0daSSam Leffler 	DIR		*dirp;
111d347a0daSSam Leffler 	struct dirent	*dent;
112d347a0daSSam Leffler 	char		path[MAXPATHLEN + 1];
113d347a0daSSam Leffler 	struct stat	stbuf;
114d347a0daSSam Leffler 
115d347a0daSSam Leffler 	assert(dir != NULL);
116d347a0daSSam Leffler 
117d347a0daSSam Leffler 	if (debug & DEBUG_WALK_DIR)
118d347a0daSSam Leffler 		printf("walk_dir: %s %p\n", dir, parent);
119d347a0daSSam Leffler 	if ((dirp = opendir(dir)) == NULL)
120d347a0daSSam Leffler 		err(1, "Can't opendir `%s'", dir);
121d347a0daSSam Leffler 	first = prev = NULL;
122d347a0daSSam Leffler 	while ((dent = readdir(dirp)) != NULL) {
123d347a0daSSam Leffler 		if (strcmp(dent->d_name, "..") == 0)
124d347a0daSSam Leffler 			continue;
125d347a0daSSam Leffler 		if (debug & DEBUG_WALK_DIR_NODE)
126d347a0daSSam Leffler 			printf("scanning %s/%s\n", dir, dent->d_name);
127d347a0daSSam Leffler 		if (snprintf(path, sizeof(path), "%s/%s", dir, dent->d_name)
128d347a0daSSam Leffler 		    >= sizeof(path))
129d347a0daSSam Leffler 			errx(1, "Pathname too long.");
130d347a0daSSam Leffler 		if (lstat(path, &stbuf) == -1)
131d347a0daSSam Leffler 			err(1, "Can't lstat `%s'", path);
132d347a0daSSam Leffler #ifdef S_ISSOCK
133d347a0daSSam Leffler 		if (S_ISSOCK(stbuf.st_mode & S_IFMT)) {
134d347a0daSSam Leffler 			if (debug & DEBUG_WALK_DIR_NODE)
135d347a0daSSam Leffler 				printf("  skipping socket %s\n", path);
136d347a0daSSam Leffler 			continue;
137d347a0daSSam Leffler 		}
138d347a0daSSam Leffler #endif
139d347a0daSSam Leffler 
140d347a0daSSam Leffler 		cur = create_fsnode(dent->d_name, &stbuf);
141d347a0daSSam Leffler 		cur->parent = parent;
142d347a0daSSam Leffler 		if (strcmp(dent->d_name, ".") == 0) {
143d347a0daSSam Leffler 				/* ensure "." is at the start of the list */
144d347a0daSSam Leffler 			cur->next = first;
145d347a0daSSam Leffler 			first = cur;
146d347a0daSSam Leffler 			if (! prev)
147d347a0daSSam Leffler 				prev = cur;
148d347a0daSSam Leffler 		} else {			/* not "." */
149d347a0daSSam Leffler 			if (prev)
150d347a0daSSam Leffler 				prev->next = cur;
151d347a0daSSam Leffler 			prev = cur;
152d347a0daSSam Leffler 			if (!first)
153d347a0daSSam Leffler 				first = cur;
154d347a0daSSam Leffler 			if (S_ISDIR(cur->type)) {
155d347a0daSSam Leffler 				cur->child = walk_dir(path, cur);
156d347a0daSSam Leffler 				continue;
157d347a0daSSam Leffler 			}
158d347a0daSSam Leffler 		}
159d347a0daSSam Leffler 		if (stbuf.st_nlink > 1) {
160d347a0daSSam Leffler 			fsinode	*curino;
161d347a0daSSam Leffler 
162d347a0daSSam Leffler 			curino = link_check(cur->inode);
163d347a0daSSam Leffler 			if (curino != NULL) {
164d347a0daSSam Leffler 				free(cur->inode);
165d347a0daSSam Leffler 				cur->inode = curino;
166d347a0daSSam Leffler 				cur->inode->nlink++;
167d347a0daSSam Leffler 			}
168d347a0daSSam Leffler 		}
169d347a0daSSam Leffler 		if (S_ISLNK(cur->type)) {
170d347a0daSSam Leffler 			char	slink[PATH_MAX+1];
171d347a0daSSam Leffler 			int	llen;
172d347a0daSSam Leffler 
173d347a0daSSam Leffler 			llen = readlink(path, slink, sizeof(slink) - 1);
174d347a0daSSam Leffler 			if (llen == -1)
175d347a0daSSam Leffler 				err(1, "Readlink `%s'", path);
176d347a0daSSam Leffler 			slink[llen] = '\0';
177d347a0daSSam Leffler 			if ((cur->symlink = strdup(slink)) == NULL)
178d347a0daSSam Leffler 				err(1, "Memory allocation error");
179d347a0daSSam Leffler 		}
180d347a0daSSam Leffler 	}
181d347a0daSSam Leffler 	for (cur = first; cur != NULL; cur = cur->next)
182d347a0daSSam Leffler 		cur->first = first;
183d347a0daSSam Leffler 	if (closedir(dirp) == -1)
184d347a0daSSam Leffler 		err(1, "Can't closedir `%s'", dir);
185d347a0daSSam Leffler 	return (first);
186d347a0daSSam Leffler }
187d347a0daSSam Leffler 
188d347a0daSSam Leffler static fsnode *
189d347a0daSSam Leffler create_fsnode(const char *name, struct stat *stbuf)
190d347a0daSSam Leffler {
191d347a0daSSam Leffler 	fsnode *cur;
192d347a0daSSam Leffler 
193d347a0daSSam Leffler 	if ((cur = calloc(1, sizeof(fsnode))) == NULL ||
194d347a0daSSam Leffler 	    (cur->name = strdup(name)) == NULL ||
195d347a0daSSam Leffler 	    (cur->inode = calloc(1, sizeof(fsinode))) == NULL)
196d347a0daSSam Leffler 		err(1, "Memory allocation error");
197d347a0daSSam Leffler 	cur->type = stbuf->st_mode & S_IFMT;
198d347a0daSSam Leffler 	cur->inode->nlink = 1;
199d347a0daSSam Leffler 	cur->inode->st = *stbuf;
200d347a0daSSam Leffler 	return (cur);
201d347a0daSSam Leffler }
202d347a0daSSam Leffler 
203d347a0daSSam Leffler /*
204d347a0daSSam Leffler  * apply_specfile --
205d347a0daSSam Leffler  *	read in the mtree(8) specfile, and apply it to the tree
206d347a0daSSam Leffler  *	at dir,parent. parameters in parent on equivalent types
207d347a0daSSam Leffler  *	will be changed to those found in specfile, and missing
208d347a0daSSam Leffler  *	entries will be added.
209d347a0daSSam Leffler  */
210d347a0daSSam Leffler void
211d347a0daSSam Leffler apply_specfile(const char *specfile, const char *dir, fsnode *parent)
212d347a0daSSam Leffler {
213d347a0daSSam Leffler 	struct timeval	 start;
214d347a0daSSam Leffler 	FILE	*fp;
215d347a0daSSam Leffler 	NODE	*root;
216d347a0daSSam Leffler 
217d347a0daSSam Leffler 	assert(specfile != NULL);
218d347a0daSSam Leffler 	assert(parent != NULL);
219d347a0daSSam Leffler 
220d347a0daSSam Leffler 	if (debug & DEBUG_APPLY_SPECFILE)
221d347a0daSSam Leffler 		printf("apply_specfile: %s, %s %p\n", specfile, dir, parent);
222d347a0daSSam Leffler 
223d347a0daSSam Leffler 				/* read in the specfile */
224d347a0daSSam Leffler 	if ((fp = fopen(specfile, "r")) == NULL)
225d347a0daSSam Leffler 		err(1, "Can't open `%s'", specfile);
226d347a0daSSam Leffler 	TIMER_START(start);
227d347a0daSSam Leffler 	root = mtree_readspec(fp);
228d347a0daSSam Leffler 	TIMER_RESULTS(start, "spec");
229d347a0daSSam Leffler 	if (fclose(fp) == EOF)
230d347a0daSSam Leffler 		err(1, "Can't close `%s'", specfile);
231d347a0daSSam Leffler 
232d347a0daSSam Leffler 				/* perform some sanity checks */
233d347a0daSSam Leffler 	if (root == NULL)
234d347a0daSSam Leffler 		errx(1, "Specfile `%s' did not contain a tree", specfile);
235d347a0daSSam Leffler 	assert(strcmp(root->name, ".") == 0);
236d347a0daSSam Leffler 	assert(root->type == F_DIR);
237d347a0daSSam Leffler 
238d347a0daSSam Leffler 				/* merge in the changes */
239d347a0daSSam Leffler 	apply_specdir(dir, root, parent);
240d347a0daSSam Leffler }
241d347a0daSSam Leffler 
242d347a0daSSam Leffler static u_int
243d347a0daSSam Leffler nodetoino(u_int type)
244d347a0daSSam Leffler {
245d347a0daSSam Leffler 
246d347a0daSSam Leffler 	switch (type) {
247d347a0daSSam Leffler 	case F_BLOCK:
248d347a0daSSam Leffler 		return S_IFBLK;
249d347a0daSSam Leffler 	case F_CHAR:
250d347a0daSSam Leffler 		return S_IFCHR;
251d347a0daSSam Leffler 	case F_DIR:
252d347a0daSSam Leffler 		return S_IFDIR;
253d347a0daSSam Leffler 	case F_FIFO:
254d347a0daSSam Leffler 		return S_IFIFO;
255d347a0daSSam Leffler 	case F_FILE:
256d347a0daSSam Leffler 		return S_IFREG;
257d347a0daSSam Leffler 	case F_LINK:
258d347a0daSSam Leffler 		return S_IFLNK;
259d347a0daSSam Leffler 	case F_SOCK:
260d347a0daSSam Leffler 		return S_IFSOCK;
261d347a0daSSam Leffler 	default:
262d347a0daSSam Leffler 		printf("unknown type %d", type);
263d347a0daSSam Leffler 		abort();
264d347a0daSSam Leffler 	}
265d347a0daSSam Leffler 	/* NOTREACHED */
266d347a0daSSam Leffler }
267d347a0daSSam Leffler 
268d347a0daSSam Leffler static void
269d347a0daSSam Leffler apply_specdir(const char *dir, NODE *specnode, fsnode *dirnode)
270d347a0daSSam Leffler {
271d347a0daSSam Leffler 	char	 path[MAXPATHLEN + 1];
272d347a0daSSam Leffler 	NODE	*curnode;
273d347a0daSSam Leffler 	fsnode	*curfsnode;
274d347a0daSSam Leffler 
275d347a0daSSam Leffler 	assert(specnode != NULL);
276d347a0daSSam Leffler 	assert(dirnode != NULL);
277d347a0daSSam Leffler 
278d347a0daSSam Leffler 	if (debug & DEBUG_APPLY_SPECFILE)
279d347a0daSSam Leffler 		printf("apply_specdir: %s %p %p\n", dir, specnode, dirnode);
280d347a0daSSam Leffler 
281d347a0daSSam Leffler 	if (specnode->type != F_DIR)
282d347a0daSSam Leffler 		errx(1, "Specfile node `%s/%s' is not a directory",
283d347a0daSSam Leffler 		    dir, specnode->name);
284d347a0daSSam Leffler 	if (dirnode->type != S_IFDIR)
285d347a0daSSam Leffler 		errx(1, "Directory node `%s/%s' is not a directory",
286d347a0daSSam Leffler 		    dir, dirnode->name);
287d347a0daSSam Leffler 
288d347a0daSSam Leffler 	apply_specentry(dir, specnode, dirnode);
289d347a0daSSam Leffler 
290d347a0daSSam Leffler 			/* now walk specnode->child matching up with dirnode */
291d347a0daSSam Leffler 	for (curnode = specnode->child; curnode != NULL;
292d347a0daSSam Leffler 	    curnode = curnode->next) {
293d347a0daSSam Leffler 		if (debug & DEBUG_APPLY_SPECENTRY)
294d347a0daSSam Leffler 			printf("apply_specdir:  spec %s\n",
295d347a0daSSam Leffler 			    curnode->name);
296d347a0daSSam Leffler 		for (curfsnode = dirnode->next; curfsnode != NULL;
297d347a0daSSam Leffler 		    curfsnode = curfsnode->next) {
298d347a0daSSam Leffler #if 0	/* too verbose for now */
299d347a0daSSam Leffler 			if (debug & DEBUG_APPLY_SPECENTRY)
300d347a0daSSam Leffler 				printf("apply_specdir:  dirent %s\n",
301d347a0daSSam Leffler 				    curfsnode->name);
302d347a0daSSam Leffler #endif
303d347a0daSSam Leffler 			if (strcmp(curnode->name, curfsnode->name) == 0)
304d347a0daSSam Leffler 				break;
305d347a0daSSam Leffler 		}
306d347a0daSSam Leffler 		if (snprintf(path, sizeof(path), "%s/%s",
307d347a0daSSam Leffler 		    dir, curnode->name) >= sizeof(path))
308d347a0daSSam Leffler 			errx(1, "Pathname too long.");
309d347a0daSSam Leffler 		if (curfsnode == NULL) {	/* need new entry */
310d347a0daSSam Leffler 			struct stat	stbuf;
311d347a0daSSam Leffler 
312d347a0daSSam Leffler 					    /*
313d347a0daSSam Leffler 					     * don't add optional spec entries
314d347a0daSSam Leffler 					     * that lack an existing fs entry
315d347a0daSSam Leffler 					     */
316d347a0daSSam Leffler 			if ((curnode->flags & F_OPT) &&
317d347a0daSSam Leffler 			    lstat(path, &stbuf) == -1)
318d347a0daSSam Leffler 					continue;
319d347a0daSSam Leffler 
320d347a0daSSam Leffler 					/* check that enough info is provided */
321d347a0daSSam Leffler #define NODETEST(t, m)							\
322d347a0daSSam Leffler 			if (!(t))					\
323d347a0daSSam Leffler 				errx(1, "`%s': %s not provided", path, m)
324d347a0daSSam Leffler 			NODETEST(curnode->flags & F_TYPE, "type");
325d347a0daSSam Leffler 			NODETEST(curnode->flags & F_MODE, "mode");
326d347a0daSSam Leffler 				/* XXX: require F_TIME ? */
327d347a0daSSam Leffler 			NODETEST(curnode->flags & F_GID ||
328d347a0daSSam Leffler 			    curnode->flags & F_GNAME, "group");
329d347a0daSSam Leffler 			NODETEST(curnode->flags & F_UID ||
330d347a0daSSam Leffler 			    curnode->flags & F_UNAME, "user");
331d347a0daSSam Leffler #undef NODETEST
332d347a0daSSam Leffler 
333d347a0daSSam Leffler 			if (debug & DEBUG_APPLY_SPECFILE)
334d347a0daSSam Leffler 				printf("apply_specdir: adding %s\n",
335d347a0daSSam Leffler 				    curnode->name);
336d347a0daSSam Leffler 					/* build minimal fsnode */
337d347a0daSSam Leffler 			memset(&stbuf, 0, sizeof(stbuf));
338d347a0daSSam Leffler 			stbuf.st_mode = nodetoino(curnode->type);
339d347a0daSSam Leffler 			stbuf.st_nlink = 1;
340d347a0daSSam Leffler 			stbuf.st_mtime = stbuf.st_atime =
341d347a0daSSam Leffler 			    stbuf.st_ctime = start_time.tv_sec;
342d347a0daSSam Leffler #if HAVE_STRUCT_STAT_ST_MTIMENSEC
343d347a0daSSam Leffler 			stbuf.st_mtimensec = stbuf.st_atimensec =
344d347a0daSSam Leffler 			    stbuf.st_ctimensec = start_time.tv_nsec;
345d347a0daSSam Leffler #endif
346d347a0daSSam Leffler 			curfsnode = create_fsnode(curnode->name, &stbuf);
347d347a0daSSam Leffler 			curfsnode->parent = dirnode->parent;
348d347a0daSSam Leffler 			curfsnode->first = dirnode;
349d347a0daSSam Leffler 			curfsnode->next = dirnode->next;
350d347a0daSSam Leffler 			dirnode->next = curfsnode;
351d347a0daSSam Leffler 			if (curfsnode->type == S_IFDIR) {
352d347a0daSSam Leffler 					/* for dirs, make "." entry as well */
353d347a0daSSam Leffler 				curfsnode->child = create_fsnode(".", &stbuf);
354d347a0daSSam Leffler 				curfsnode->child->parent = curfsnode;
355d347a0daSSam Leffler 				curfsnode->child->first = curfsnode->child;
356d347a0daSSam Leffler 			}
357d347a0daSSam Leffler 			if (curfsnode->type == S_IFLNK) {
358d347a0daSSam Leffler 				assert(curnode->slink != NULL);
359d347a0daSSam Leffler 					/* for symlinks, copy the target */
360d347a0daSSam Leffler 				if ((curfsnode->symlink =
361d347a0daSSam Leffler 				    strdup(curnode->slink)) == NULL)
362d347a0daSSam Leffler 					err(1, "Memory allocation error");
363d347a0daSSam Leffler 			}
364d347a0daSSam Leffler 		}
365d347a0daSSam Leffler 		apply_specentry(dir, curnode, curfsnode);
366d347a0daSSam Leffler 		if (curnode->type == F_DIR) {
367d347a0daSSam Leffler 			if (curfsnode->type != S_IFDIR)
368d347a0daSSam Leffler 				errx(1, "`%s' is not a directory", path);
369d347a0daSSam Leffler 			assert (curfsnode->child != NULL);
370d347a0daSSam Leffler 			apply_specdir(path, curnode, curfsnode->child);
371d347a0daSSam Leffler 		}
372d347a0daSSam Leffler 	}
373d347a0daSSam Leffler }
374d347a0daSSam Leffler 
375d347a0daSSam Leffler static void
376d347a0daSSam Leffler apply_specentry(const char *dir, NODE *specnode, fsnode *dirnode)
377d347a0daSSam Leffler {
378d347a0daSSam Leffler 
379d347a0daSSam Leffler 	assert(specnode != NULL);
380d347a0daSSam Leffler 	assert(dirnode != NULL);
381d347a0daSSam Leffler 
382d347a0daSSam Leffler 	if (nodetoino(specnode->type) != dirnode->type)
383d347a0daSSam Leffler 		errx(1, "`%s/%s' type mismatch: specfile %s, tree %s",
384d347a0daSSam Leffler 		    dir, specnode->name, inode_type(nodetoino(specnode->type)),
385d347a0daSSam Leffler 		    inode_type(dirnode->type));
386d347a0daSSam Leffler 
387d347a0daSSam Leffler 	if (debug & DEBUG_APPLY_SPECENTRY)
388d347a0daSSam Leffler 		printf("apply_specentry: %s/%s\n", dir, dirnode->name);
389d347a0daSSam Leffler 
390d347a0daSSam Leffler #define ASEPRINT(t, b, o, n) \
391d347a0daSSam Leffler 		if (debug & DEBUG_APPLY_SPECENTRY) \
392d347a0daSSam Leffler 			printf("\t\t\tchanging %s from " b " to " b "\n", \
393d347a0daSSam Leffler 			    t, o, n)
394d347a0daSSam Leffler 
395d347a0daSSam Leffler 	if (specnode->flags & (F_GID | F_GNAME)) {
396d347a0daSSam Leffler 		ASEPRINT("gid", "%d",
397d347a0daSSam Leffler 		    dirnode->inode->st.st_gid, specnode->st_gid);
398d347a0daSSam Leffler 		dirnode->inode->st.st_gid = specnode->st_gid;
399d347a0daSSam Leffler 	}
400d347a0daSSam Leffler 	if (specnode->flags & F_MODE) {
401d347a0daSSam Leffler 		ASEPRINT("mode", "%#o",
402d347a0daSSam Leffler 		    dirnode->inode->st.st_mode & ALLPERMS, specnode->st_mode);
403d347a0daSSam Leffler 		dirnode->inode->st.st_mode &= ~ALLPERMS;
404d347a0daSSam Leffler 		dirnode->inode->st.st_mode |= (specnode->st_mode & ALLPERMS);
405d347a0daSSam Leffler 	}
406d347a0daSSam Leffler 		/* XXX: ignoring F_NLINK for now */
407d347a0daSSam Leffler 	if (specnode->flags & F_SIZE) {
408d347a0daSSam Leffler 		ASEPRINT("size", "%lld",
409d347a0daSSam Leffler 		    (long long)dirnode->inode->st.st_size,
410d347a0daSSam Leffler 		    (long long)specnode->st_size);
411d347a0daSSam Leffler 		dirnode->inode->st.st_size = specnode->st_size;
412d347a0daSSam Leffler 	}
413d347a0daSSam Leffler 	if (specnode->flags & F_SLINK) {
414d347a0daSSam Leffler 		assert(dirnode->symlink != NULL);
415d347a0daSSam Leffler 		assert(specnode->slink != NULL);
416d347a0daSSam Leffler 		ASEPRINT("symlink", "%s", dirnode->symlink, specnode->slink);
417d347a0daSSam Leffler 		free(dirnode->symlink);
418d347a0daSSam Leffler 		if ((dirnode->symlink = strdup(specnode->slink)) == NULL)
419d347a0daSSam Leffler 			err(1, "Memory allocation error");
420d347a0daSSam Leffler 	}
421d347a0daSSam Leffler 	if (specnode->flags & F_TIME) {
422d347a0daSSam Leffler 		ASEPRINT("time", "%ld",
423d347a0daSSam Leffler 		    (long)dirnode->inode->st.st_mtime,
424d347a0daSSam Leffler 		    (long)specnode->st_mtimespec.tv_sec);
425d347a0daSSam Leffler 		dirnode->inode->st.st_mtime =		specnode->st_mtimespec.tv_sec;
426d347a0daSSam Leffler 		dirnode->inode->st.st_atime =		specnode->st_mtimespec.tv_sec;
427d347a0daSSam Leffler 		dirnode->inode->st.st_ctime =		start_time.tv_sec;
428d347a0daSSam Leffler #if HAVE_STRUCT_STAT_ST_MTIMENSEC
429d347a0daSSam Leffler 		dirnode->inode->st.st_mtimensec =	specnode->st_mtimespec.tv_nsec;
430d347a0daSSam Leffler 		dirnode->inode->st.st_atimensec =	specnode->st_mtimespec.tv_nsec;
431d347a0daSSam Leffler 		dirnode->inode->st.st_ctimensec =	start_time.tv_nsec;
432d347a0daSSam Leffler #endif
433d347a0daSSam Leffler 	}
434d347a0daSSam Leffler 	if (specnode->flags & (F_UID | F_UNAME)) {
435d347a0daSSam Leffler 		ASEPRINT("uid", "%d",
436d347a0daSSam Leffler 		    dirnode->inode->st.st_uid, specnode->st_uid);
437d347a0daSSam Leffler 		dirnode->inode->st.st_uid = specnode->st_uid;
438d347a0daSSam Leffler 	}
439d347a0daSSam Leffler #if HAVE_STRUCT_STAT_ST_FLAGS
440d347a0daSSam Leffler 	if (specnode->flags & F_FLAGS) {
441d347a0daSSam Leffler 		ASEPRINT("flags", "%#lX",
442d347a0daSSam Leffler 		    (unsigned long)dirnode->inode->st.st_flags,
443d347a0daSSam Leffler 		    (unsigned long)specnode->st_flags);
444d347a0daSSam Leffler 		dirnode->inode->st.st_flags = specnode->st_flags;
445d347a0daSSam Leffler 	}
446d347a0daSSam Leffler #endif
447d347a0daSSam Leffler #undef ASEPRINT
448d347a0daSSam Leffler 
449d347a0daSSam Leffler 	dirnode->flags |= FSNODE_F_HASSPEC;
450d347a0daSSam Leffler }
451d347a0daSSam Leffler 
452d347a0daSSam Leffler 
453d347a0daSSam Leffler /*
454d347a0daSSam Leffler  * dump_fsnodes --
455d347a0daSSam Leffler  *	dump the fsnodes from `cur', based in the directory `dir'
456d347a0daSSam Leffler  */
457d347a0daSSam Leffler void
458d347a0daSSam Leffler dump_fsnodes(const char *dir, fsnode *root)
459d347a0daSSam Leffler {
460d347a0daSSam Leffler 	fsnode	*cur;
461d347a0daSSam Leffler 	char	path[MAXPATHLEN + 1];
462d347a0daSSam Leffler 
463d347a0daSSam Leffler 	assert (dir != NULL);
464d347a0daSSam Leffler 	printf("dump_fsnodes: %s %p\n", dir, root);
465d347a0daSSam Leffler 	for (cur = root; cur != NULL; cur = cur->next) {
466d347a0daSSam Leffler 		if (snprintf(path, sizeof(path), "%s/%s", dir, cur->name)
467d347a0daSSam Leffler 		    >= sizeof(path))
468d347a0daSSam Leffler 			errx(1, "Pathname too long.");
469d347a0daSSam Leffler 
470d347a0daSSam Leffler 		if (debug & DEBUG_DUMP_FSNODES_VERBOSE)
471d347a0daSSam Leffler 			printf("cur=%8p parent=%8p first=%8p ",
472d347a0daSSam Leffler 			    cur, cur->parent, cur->first);
473d347a0daSSam Leffler 		printf("%7s: %s", inode_type(cur->type), path);
474d347a0daSSam Leffler 		if (S_ISLNK(cur->type)) {
475d347a0daSSam Leffler 			assert(cur->symlink != NULL);
476d347a0daSSam Leffler 			printf(" -> %s", cur->symlink);
477d347a0daSSam Leffler 		} else {
478d347a0daSSam Leffler 			assert (cur->symlink == NULL);
479d347a0daSSam Leffler 		}
480d347a0daSSam Leffler 		if (cur->inode->nlink > 1)
481d347a0daSSam Leffler 			printf(", nlinks=%d", cur->inode->nlink);
482d347a0daSSam Leffler 		putchar('\n');
483d347a0daSSam Leffler 
484d347a0daSSam Leffler 		if (cur->child) {
485d347a0daSSam Leffler 			assert (cur->type == S_IFDIR);
486d347a0daSSam Leffler 			dump_fsnodes(path, cur->child);
487d347a0daSSam Leffler 		}
488d347a0daSSam Leffler 	}
489d347a0daSSam Leffler 	printf("dump_fsnodes: finished %s\n", dir);
490d347a0daSSam Leffler }
491d347a0daSSam Leffler 
492d347a0daSSam Leffler 
493d347a0daSSam Leffler /*
494d347a0daSSam Leffler  * inode_type --
495d347a0daSSam Leffler  *	for a given inode type `mode', return a descriptive string.
496d347a0daSSam Leffler  */
497d347a0daSSam Leffler const char *
498d347a0daSSam Leffler inode_type(mode_t mode)
499d347a0daSSam Leffler {
500d347a0daSSam Leffler 
501d347a0daSSam Leffler 	if (S_ISREG(mode))
502d347a0daSSam Leffler 		return ("file");
503d347a0daSSam Leffler 	if (S_ISLNK(mode))
504d347a0daSSam Leffler 		return ("symlink");
505d347a0daSSam Leffler 	if (S_ISDIR(mode))
506d347a0daSSam Leffler 		return ("dir");
507d347a0daSSam Leffler 	if (S_ISLNK(mode))
508d347a0daSSam Leffler 		return ("link");
509d347a0daSSam Leffler 	if (S_ISFIFO(mode))
510d347a0daSSam Leffler 		return ("fifo");
511d347a0daSSam Leffler 	if (S_ISSOCK(mode))
512d347a0daSSam Leffler 		return ("socket");
513d347a0daSSam Leffler 	/* XXX should not happen but handle them */
514d347a0daSSam Leffler 	if (S_ISCHR(mode))
515d347a0daSSam Leffler 		return ("char");
516d347a0daSSam Leffler 	if (S_ISBLK(mode))
517d347a0daSSam Leffler 		return ("block");
518d347a0daSSam Leffler 	return ("unknown");
519d347a0daSSam Leffler }
520d347a0daSSam Leffler 
521d347a0daSSam Leffler 
522d347a0daSSam Leffler /*
523d347a0daSSam Leffler  * link_check --
524d347a0daSSam Leffler  *	return pointer to fsnode matching `entry's st_ino & st_dev if it exists,
525d347a0daSSam Leffler  *	otherwise add `entry' to table and return NULL
526d347a0daSSam Leffler  */
527d347a0daSSam Leffler static fsinode *
528d347a0daSSam Leffler link_check(fsinode *entry)
529d347a0daSSam Leffler {
530d347a0daSSam Leffler 	static	struct dupnode {
531d347a0daSSam Leffler 		uint32_t	dev;
532d347a0daSSam Leffler 		uint64_t	ino;
533d347a0daSSam Leffler 		fsinode		*dup;
534d347a0daSSam Leffler 	} *dups, *newdups;
535d347a0daSSam Leffler 	static	int	ndups, maxdups;
536d347a0daSSam Leffler 
537d347a0daSSam Leffler 	int	i;
538d347a0daSSam Leffler 
539d347a0daSSam Leffler 	assert (entry != NULL);
540d347a0daSSam Leffler 
541d347a0daSSam Leffler 		/* XXX; maybe traverse in reverse for speed? */
542d347a0daSSam Leffler 	for (i = 0; i < ndups; i++) {
543d347a0daSSam Leffler 		if (dups[i].dev == entry->st.st_dev &&
544d347a0daSSam Leffler 		    dups[i].ino == entry->st.st_ino) {
545d347a0daSSam Leffler 			if (debug & DEBUG_WALK_DIR_LINKCHECK)
546d347a0daSSam Leffler 				printf("link_check: found [%d,%d]\n",
547d347a0daSSam Leffler 				    entry->st.st_dev, entry->st.st_ino);
548d347a0daSSam Leffler 			return (dups[i].dup);
549d347a0daSSam Leffler 		}
550d347a0daSSam Leffler 	}
551d347a0daSSam Leffler 
552d347a0daSSam Leffler 	if (debug & DEBUG_WALK_DIR_LINKCHECK)
553d347a0daSSam Leffler 		printf("link_check: no match for [%d, %d]\n",
554d347a0daSSam Leffler 		    entry->st.st_dev, entry->st.st_ino);
555d347a0daSSam Leffler 	if (ndups == maxdups) {
556d347a0daSSam Leffler 		if ((newdups = realloc(dups, sizeof(struct dupnode) * (maxdups + 128)))
557d347a0daSSam Leffler 		    == NULL)
558d347a0daSSam Leffler 			err(1, "Memory allocation error");
559d347a0daSSam Leffler 		dups = newdups;
560d347a0daSSam Leffler 		maxdups += 128;
561d347a0daSSam Leffler 	}
562d347a0daSSam Leffler 	dups[ndups].dev = entry->st.st_dev;
563d347a0daSSam Leffler 	dups[ndups].ino = entry->st.st_ino;
564d347a0daSSam Leffler 	dups[ndups].dup = entry;
565d347a0daSSam Leffler 	ndups++;
566d347a0daSSam Leffler 
567d347a0daSSam Leffler 	return (NULL);
568d347a0daSSam Leffler }
569