1/*-
2 * Copyright (c) 1989, 1993
3 *	The Regents of the University of California.  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. Neither the name of the University nor the names of its contributors
14 *    may be used to endorse or promote products derived from this software
15 *    without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#if 0
31#ifndef lint
32static char sccsid[] = "@(#)create.c	8.1 (Berkeley) 6/6/93";
33#endif /* not lint */
34#endif
35#include <sys/cdefs.h>
36__FBSDID("$FreeBSD$");
37
38#include <sys/param.h>
39#include <sys/stat.h>
40#include <dirent.h>
41#include <err.h>
42#include <errno.h>
43#include <fcntl.h>
44#include <fts.h>
45#include <grp.h>
46#ifdef MD5
47#include <md5.h>
48#endif
49#ifdef SHA1
50#include <sha.h>
51#endif
52#ifdef RMD160
53#include <ripemd.h>
54#endif
55#ifdef SHA256
56#include <sha256.h>
57#endif
58#include <pwd.h>
59#include <stdint.h>
60#include <stdio.h>
61#include <time.h>
62#include <unistd.h>
63#include <vis.h>
64#include "mtree.h"
65#include "extern.h"
66
67#define	INDENTNAMELEN	15
68#define	MAXLINELEN	80
69
70static gid_t gid;
71static uid_t uid;
72static mode_t mode;
73static u_long flags = 0xffffffff;
74
75static int	dsort(const FTSENT * const *, const FTSENT * const *);
76static void	output(int, int *, const char *, ...) __printflike(3, 4);
77static int	statd(FTS *, FTSENT *, uid_t *, gid_t *, mode_t *, u_long *);
78static void	statf(int, FTSENT *);
79
80void
81cwalk(void)
82{
83	FTS *t;
84	FTSENT *p;
85	time_t cl;
86	char *argv[2], host[MAXHOSTNAMELEN];
87	char dot[] = ".";
88	int indent = 0;
89
90	if (!nflag) {
91		(void)time(&cl);
92		(void)gethostname(host, sizeof(host));
93		(void)printf(
94		    "#\t   user: %s\n#\tmachine: %s\n",
95		    getlogin(), host);
96		(void)printf(
97		    "#\t   tree: %s\n#\t   date: %s",
98		    fullpath, ctime(&cl));
99	}
100
101	argv[0] = dot;
102	argv[1] = NULL;
103	if ((t = fts_open(argv, ftsoptions, dsort)) == NULL)
104		err(1, "fts_open()");
105	while ((p = fts_read(t))) {
106		if (iflag)
107			indent = p->fts_level * 4;
108		if (check_excludes(p->fts_name, p->fts_path)) {
109			fts_set(t, p, FTS_SKIP);
110			continue;
111		}
112		switch(p->fts_info) {
113		case FTS_D:
114			if (!dflag)
115				(void)printf("\n");
116			if (!nflag)
117				(void)printf("# %s\n", p->fts_path);
118			statd(t, p, &uid, &gid, &mode, &flags);
119			statf(indent, p);
120			break;
121		case FTS_DP:
122			if (!nflag && (p->fts_level > 0))
123				(void)printf("%*s# %s\n", indent, "", p->fts_path);
124			(void)printf("%*s..\n", indent, "");
125			if (!dflag)
126				(void)printf("\n");
127			break;
128		case FTS_DNR:
129		case FTS_ERR:
130		case FTS_NS:
131			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
132			break;
133		default:
134			if (!dflag)
135				statf(indent, p);
136			break;
137
138		}
139	}
140	(void)fts_close(t);
141	if (sflag && keys & F_CKSUM)
142		warnx("%s checksum: %lu", fullpath, (unsigned long)crc_total);
143}
144
145static void
146statf(int indent, FTSENT *p)
147{
148	struct group *gr;
149	struct passwd *pw;
150	uint32_t val;
151	off_t len;
152	int fd, offset;
153	char *fflags;
154	char *escaped_name;
155
156	escaped_name = calloc(1, p->fts_namelen * 4  +  1);
157	if (escaped_name == NULL)
158		errx(1, "statf(): calloc() failed");
159	strvis(escaped_name, p->fts_name, VIS_WHITE | VIS_OCTAL | VIS_GLOB);
160
161	if (iflag || S_ISDIR(p->fts_statp->st_mode))
162		offset = printf("%*s%s", indent, "", escaped_name);
163	else
164		offset = printf("%*s    %s", indent, "", escaped_name);
165
166	free(escaped_name);
167
168	if (offset > (INDENTNAMELEN + indent))
169		offset = MAXLINELEN;
170	else
171		offset += printf("%*s", (INDENTNAMELEN + indent) - offset, "");
172
173	if (!S_ISREG(p->fts_statp->st_mode) && !dflag)
174		output(indent, &offset, "type=%s", inotype(p->fts_statp->st_mode));
175	if (p->fts_statp->st_uid != uid) {
176		if (keys & F_UNAME) {
177			pw = getpwuid(p->fts_statp->st_uid);
178			if (pw != NULL)
179				output(indent, &offset, "uname=%s", pw->pw_name);
180			else if (wflag)
181				warnx("Could not get uname for uid=%u",
182				    p->fts_statp->st_uid);
183			else
184				errx(1,
185				    "Could not get uname for uid=%u",
186				    p->fts_statp->st_uid);
187		}
188		if (keys & F_UID)
189			output(indent, &offset, "uid=%u", p->fts_statp->st_uid);
190	}
191	if (p->fts_statp->st_gid != gid) {
192		if (keys & F_GNAME) {
193			gr = getgrgid(p->fts_statp->st_gid);
194			if (gr != NULL)
195				output(indent, &offset, "gname=%s", gr->gr_name);
196			else if (wflag)
197				warnx("Could not get gname for gid=%u",
198				    p->fts_statp->st_gid);
199			else
200				errx(1,
201				    "Could not get gname for gid=%u",
202				    p->fts_statp->st_gid);
203		}
204		if (keys & F_GID)
205			output(indent, &offset, "gid=%u", p->fts_statp->st_gid);
206	}
207	if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
208		output(indent, &offset, "mode=%#o", p->fts_statp->st_mode & MBITS);
209	if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
210		output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink);
211	if (keys & F_SIZE && S_ISREG(p->fts_statp->st_mode))
212		output(indent, &offset, "size=%jd",
213		    (intmax_t)p->fts_statp->st_size);
214	if (keys & F_TIME)
215		output(indent, &offset, "time=%ld.%09ld",
216		    (long)p->fts_statp->st_mtim.tv_sec,
217		    p->fts_statp->st_mtim.tv_nsec);
218	if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) {
219		if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 ||
220		    crc(fd, &val, &len))
221			err(1, "%s", p->fts_accpath);
222		(void)close(fd);
223		output(indent, &offset, "cksum=%lu", (unsigned long)val);
224	}
225#ifdef MD5
226	if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
227		char *digest, buf[33];
228
229		digest = MD5File(p->fts_accpath, buf);
230		if (!digest)
231			err(1, "%s", p->fts_accpath);
232		output(indent, &offset, "md5digest=%s", digest);
233	}
234#endif /* MD5 */
235#ifdef SHA1
236	if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) {
237		char *digest, buf[41];
238
239		digest = SHA1_File(p->fts_accpath, buf);
240		if (!digest)
241			err(1, "%s", p->fts_accpath);
242		output(indent, &offset, "sha1digest=%s", digest);
243	}
244#endif /* SHA1 */
245#ifdef RMD160
246	if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) {
247		char *digest, buf[41];
248
249		digest = RIPEMD160_File(p->fts_accpath, buf);
250		if (!digest)
251			err(1, "%s", p->fts_accpath);
252		output(indent, &offset, "ripemd160digest=%s", digest);
253	}
254#endif /* RMD160 */
255#ifdef SHA256
256	if (keys & F_SHA256 && S_ISREG(p->fts_statp->st_mode)) {
257		char *digest, buf[65];
258
259		digest = SHA256_File(p->fts_accpath, buf);
260		if (!digest)
261			err(1, "%s", p->fts_accpath);
262		output(indent, &offset, "sha256digest=%s", digest);
263	}
264#endif /* SHA256 */
265	if (keys & F_SLINK &&
266	    (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
267		output(indent, &offset, "link=%s", rlink(p->fts_accpath));
268	if (keys & F_FLAGS && p->fts_statp->st_flags != flags) {
269		fflags = flags_to_string(p->fts_statp->st_flags);
270		output(indent, &offset, "flags=%s", fflags);
271		free(fflags);
272	}
273	(void)putchar('\n');
274}
275
276#define	MAXGID	5000
277#define	MAXUID	5000
278#define	MAXMODE	MBITS + 1
279#define	MAXFLAGS 256
280#define	MAXS 16
281
282static int
283statd(FTS *t, FTSENT *parent, uid_t *puid, gid_t *pgid, mode_t *pmode, u_long *pflags)
284{
285	FTSENT *p;
286	gid_t sgid;
287	uid_t suid;
288	mode_t smode;
289	u_long sflags;
290	struct group *gr;
291	struct passwd *pw;
292	gid_t savegid = *pgid;
293	uid_t saveuid = *puid;
294	mode_t savemode = *pmode;
295	u_long saveflags = *pflags;
296	u_short maxgid, maxuid, maxmode, maxflags;
297	u_short g[MAXGID], u[MAXUID], m[MAXMODE], f[MAXFLAGS];
298	char *fflags;
299	static int first = 1;
300
301	if ((p = fts_children(t, 0)) == NULL) {
302		if (errno)
303			err(1, "%s", RP(parent));
304		return (1);
305	}
306
307	bzero(g, sizeof(g));
308	bzero(u, sizeof(u));
309	bzero(m, sizeof(m));
310	bzero(f, sizeof(f));
311
312	maxuid = maxgid = maxmode = maxflags = 0;
313	for (; p; p = p->fts_link) {
314		if (!dflag || (dflag && S_ISDIR(p->fts_statp->st_mode))) {
315			smode = p->fts_statp->st_mode & MBITS;
316			if (smode < MAXMODE && ++m[smode] > maxmode) {
317				savemode = smode;
318				maxmode = m[smode];
319			}
320			sgid = p->fts_statp->st_gid;
321			if (sgid < MAXGID && ++g[sgid] > maxgid) {
322				savegid = sgid;
323				maxgid = g[sgid];
324			}
325			suid = p->fts_statp->st_uid;
326			if (suid < MAXUID && ++u[suid] > maxuid) {
327				saveuid = suid;
328				maxuid = u[suid];
329			}
330
331			/*
332			 * XXX
333			 * note that the below will break when file flags
334			 * are extended beyond the first 4 bytes of each
335			 * half word of the flags
336			 */
337#define FLAGS2IDX(f) ((f & 0xf) | ((f >> 12) & 0xf0))
338			sflags = p->fts_statp->st_flags;
339			if (FLAGS2IDX(sflags) < MAXFLAGS &&
340			    ++f[FLAGS2IDX(sflags)] > maxflags) {
341				saveflags = sflags;
342				maxflags = f[FLAGS2IDX(sflags)];
343			}
344		}
345	}
346	/*
347	 * If the /set record is the same as the last one we do not need to output
348	 * a new one.  So first we check to see if anything changed.  Note that we
349	 * always output a /set record for the first directory.
350	 */
351	if ((((keys & F_UNAME) | (keys & F_UID)) && (*puid != saveuid)) ||
352	    (((keys & F_GNAME) | (keys & F_GID)) && (*pgid != savegid)) ||
353	    ((keys & F_MODE) && (*pmode != savemode)) ||
354	    ((keys & F_FLAGS) && (*pflags != saveflags)) ||
355	    (first)) {
356		first = 0;
357		if (dflag)
358			(void)printf("/set type=dir");
359		else
360			(void)printf("/set type=file");
361		if (keys & F_UNAME) {
362			pw = getpwuid(saveuid);
363			if (pw != NULL)
364				(void)printf(" uname=%s", pw->pw_name);
365			else if (wflag)
366				warnx( "Could not get uname for uid=%u", saveuid);
367			else
368				errx(1, "Could not get uname for uid=%u", saveuid);
369		}
370		if (keys & F_UID)
371			(void)printf(" uid=%lu", (u_long)saveuid);
372		if (keys & F_GNAME) {
373			gr = getgrgid(savegid);
374			if (gr != NULL)
375				(void)printf(" gname=%s", gr->gr_name);
376			else if (wflag)
377				warnx("Could not get gname for gid=%u", savegid);
378			else
379				errx(1, "Could not get gname for gid=%u", savegid);
380		}
381		if (keys & F_GID)
382			(void)printf(" gid=%lu", (u_long)savegid);
383		if (keys & F_MODE)
384			(void)printf(" mode=%#o", savemode);
385		if (keys & F_NLINK)
386			(void)printf(" nlink=1");
387		if (keys & F_FLAGS) {
388			fflags = flags_to_string(saveflags);
389			(void)printf(" flags=%s", fflags);
390			free(fflags);
391		}
392		(void)printf("\n");
393		*puid = saveuid;
394		*pgid = savegid;
395		*pmode = savemode;
396		*pflags = saveflags;
397	}
398	return (0);
399}
400
401static int
402dsort(const FTSENT * const *a, const FTSENT * const *b)
403{
404	if (S_ISDIR((*a)->fts_statp->st_mode)) {
405		if (!S_ISDIR((*b)->fts_statp->st_mode))
406			return (1);
407	} else if (S_ISDIR((*b)->fts_statp->st_mode))
408		return (-1);
409	return (strcmp((*a)->fts_name, (*b)->fts_name));
410}
411
412#include <stdarg.h>
413
414void
415output(int indent, int *offset, const char *fmt, ...)
416{
417	va_list ap;
418	char buf[1024];
419	va_start(ap, fmt);
420	(void)vsnprintf(buf, sizeof(buf), fmt, ap);
421	va_end(ap);
422
423	if (*offset + strlen(buf) > MAXLINELEN - 3) {
424		(void)printf(" \\\n%*s", INDENTNAMELEN + indent, "");
425		*offset = INDENTNAMELEN + indent;
426	}
427	*offset += printf(" %s", buf) + 1;
428}
429