create.c revision 44303 
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. 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#if 0
36static char sccsid[] = "@(#)create.c	8.1 (Berkeley) 6/6/93";
37#endif
38static const char rcsid[] =
39	"$Id: create.c,v 1.13 1999/01/18 06:58:25 jkoshy Exp $";
40#endif /* not lint */
41
42#include <sys/param.h>
43#include <sys/stat.h>
44#include <dirent.h>
45#include <err.h>
46#include <errno.h>
47#include <fcntl.h>
48#include <fts.h>
49#include <grp.h>
50#ifdef MD5
51#include <md5.h>
52#endif
53#ifdef SHA1
54#include <sha.h>
55#endif
56#ifdef RMD160
57#include <ripemd.h>
58#endif
59#include <pwd.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
70extern long int crc_total;
71extern int ftsoptions;
72extern int dflag, iflag, nflag, sflag;
73extern u_int keys;
74extern char fullpath[MAXPATHLEN];
75extern int lineno;
76
77static gid_t gid;
78static uid_t uid;
79static mode_t mode;
80
81static int	dsort __P((const FTSENT **, const FTSENT **));
82static void	output __P((int, int *, const char *, ...));
83static int	statd __P((FTS *, FTSENT *, uid_t *, gid_t *, mode_t *));
84static void	statf __P((int, FTSENT *));
85
86void
87cwalk()
88{
89	register FTS *t;
90	register FTSENT *p;
91	time_t clock;
92	char *argv[2], host[MAXHOSTNAMELEN];
93	int indent = 0;
94
95	(void)time(&clock);
96	(void)gethostname(host, sizeof(host));
97	(void)printf(
98	    "#\t   user: %s\n#\tmachine: %s\n#\t   tree: %s\n#\t   date: %s",
99	    getlogin(), host, fullpath, ctime(&clock));
100
101	argv[0] = ".";
102	argv[1] = NULL;
103	if ((t = fts_open(argv, ftsoptions, dsort)) == NULL)
104		err(1, "line %d: fts_open", lineno);
105	while ((p = fts_read(t))) {
106		if (iflag)
107			indent = p->fts_level * 4;
108		switch(p->fts_info) {
109		case FTS_D:
110			if (!dflag)
111				(void)printf("\n");
112			if (!nflag)
113				(void)printf("# %s\n", p->fts_path);
114			statd(t, p, &uid, &gid, &mode);
115			statf(indent, p);
116			break;
117		case FTS_DP:
118			if (!nflag && (p->fts_level > 0))
119				(void)printf("%*s# %s\n", indent, "", p->fts_path);
120			(void)printf("%*s..\n", indent, "");
121			if (!dflag)
122				(void)printf("\n");
123			break;
124		case FTS_DNR:
125		case FTS_ERR:
126		case FTS_NS:
127			warnx("%s: %s", p->fts_path, strerror(p->fts_errno));
128			break;
129		default:
130			if (!dflag)
131				statf(indent, p);
132			break;
133
134		}
135	}
136	(void)fts_close(t);
137	if (sflag && keys & F_CKSUM)
138		warnx("%s checksum: %lu", fullpath, crc_total);
139}
140
141static void
142statf(indent, p)
143	int indent;
144	FTSENT *p;
145{
146	struct group *gr;
147	struct passwd *pw;
148	u_long len, val;
149	int fd, offset;
150	char *escaped_name;
151
152	escaped_name = calloc(1, p->fts_namelen * 4  +  1);
153	if (escaped_name == NULL)
154		errx(1, "statf(): calloc() failed");
155	strvis(escaped_name, p->fts_name, VIS_WHITE | VIS_OCTAL);
156
157	if (iflag || S_ISDIR(p->fts_statp->st_mode))
158		offset = printf("%*s%s", indent, "", escaped_name);
159	else
160		offset = printf("%*s    %s", indent, "", escaped_name);
161
162	free(escaped_name);
163
164	if (offset > (INDENTNAMELEN + indent))
165		offset = MAXLINELEN;
166	else
167		offset += printf("%*s", (INDENTNAMELEN + indent) - offset, "");
168
169	if (!S_ISREG(p->fts_statp->st_mode) && !dflag)
170		output(indent, &offset, "type=%s", inotype(p->fts_statp->st_mode));
171	if (p->fts_statp->st_uid != uid) {
172		if (keys & F_UNAME) {
173			if ((pw = getpwuid(p->fts_statp->st_uid)) != NULL) {
174				output(indent, &offset, "uname=%s", pw->pw_name);
175			} else {
176				errx(1,
177				"line %d: could not get uname for uid=%u",
178				lineno, p->fts_statp->st_uid);
179			}
180		}
181		if (keys & F_UID)
182			output(indent, &offset, "uid=%u", p->fts_statp->st_uid);
183	}
184	if (p->fts_statp->st_gid != gid) {
185		if (keys & F_GNAME) {
186			if ((gr = getgrgid(p->fts_statp->st_gid)) != NULL) {
187				output(indent, &offset, "gname=%s", gr->gr_name);
188			} else {
189				errx(1,
190				"line %d: could not get gname for gid=%u",
191				lineno, p->fts_statp->st_gid);
192			}
193		}
194		if (keys & F_GID)
195			output(indent, &offset, "gid=%u", p->fts_statp->st_gid);
196	}
197	if (keys & F_MODE && (p->fts_statp->st_mode & MBITS) != mode)
198		output(indent, &offset, "mode=%#o", p->fts_statp->st_mode & MBITS);
199	if (keys & F_NLINK && p->fts_statp->st_nlink != 1)
200		output(indent, &offset, "nlink=%u", p->fts_statp->st_nlink);
201	if (keys & F_SIZE)
202		output(indent, &offset, "size=%qd", p->fts_statp->st_size);
203	if (keys & F_TIME)
204		output(indent, &offset, "time=%ld.%ld",
205		    p->fts_statp->st_mtimespec.tv_sec,
206		    p->fts_statp->st_mtimespec.tv_nsec);
207	if (keys & F_CKSUM && S_ISREG(p->fts_statp->st_mode)) {
208		if ((fd = open(p->fts_accpath, O_RDONLY, 0)) < 0 ||
209		    crc(fd, &val, &len))
210			err(1, "line %d: %s", lineno, p->fts_accpath);
211		(void)close(fd);
212		output(indent, &offset, "cksum=%lu", val);
213	}
214#ifdef MD5
215	if (keys & F_MD5 && S_ISREG(p->fts_statp->st_mode)) {
216		char *digest, buf[33];
217
218		digest = MD5File(p->fts_accpath, buf);
219		if (!digest) {
220			err(1, "line %d: %s", lineno, p->fts_accpath);
221		} else {
222			output(indent, &offset, "md5digest=%s", digest);
223		}
224	}
225#endif /* MD5 */
226#ifdef SHA1
227	if (keys & F_SHA1 && S_ISREG(p->fts_statp->st_mode)) {
228		char *digest, buf[41];
229
230		digest = SHA1_File(p->fts_accpath, buf);
231		if (!digest) {
232			err(1, "line %d: %s", lineno, p->fts_accpath);
233		} else {
234			output(indent, &offset, "sha1digest=%s", digest);
235		}
236	}
237#endif /* SHA1 */
238#ifdef RMD160
239	if (keys & F_RMD160 && S_ISREG(p->fts_statp->st_mode)) {
240		char *digest, buf[41];
241
242		digest = RIPEMD160_File(p->fts_accpath, buf);
243		if (!digest) {
244			err(1, "line %d: %s", lineno, p->fts_accpath);
245		} else {
246			output(indent, &offset, "ripemd160digest=%s", digest);
247		}
248	}
249#endif /* RMD160 */
250	if (keys & F_SLINK &&
251	    (p->fts_info == FTS_SL || p->fts_info == FTS_SLNONE))
252		output(indent, &offset, "link=%s", rlink(p->fts_accpath));
253	(void)putchar('\n');
254}
255
256#define	MAXGID	5000
257#define	MAXUID	5000
258#define	MAXMODE	MBITS + 1
259
260static int
261statd(t, parent, puid, pgid, pmode)
262	FTS *t;
263	FTSENT *parent;
264	uid_t *puid;
265	gid_t *pgid;
266	mode_t *pmode;
267{
268	register FTSENT *p;
269	register gid_t sgid;
270	register uid_t suid;
271	register mode_t smode;
272	struct group *gr;
273	struct passwd *pw;
274	gid_t savegid = *pgid;
275	uid_t saveuid = *puid;
276	mode_t savemode = *pmode;
277	u_short maxgid, maxuid, maxmode, g[MAXGID], u[MAXUID], m[MAXMODE];
278	static int first = 1;
279
280	if ((p = fts_children(t, 0)) == NULL) {
281		if (errno)
282			err(1, "line %d: %s", lineno, RP(parent));
283		return (1);
284	}
285
286	bzero(g, sizeof(g));
287	bzero(u, sizeof(u));
288	bzero(m, sizeof(m));
289
290	maxuid = maxgid = maxmode = 0;
291	for (; p; p = p->fts_link) {
292		if (!dflag || (dflag && S_ISDIR(p->fts_statp->st_mode))) {
293			smode = p->fts_statp->st_mode & MBITS;
294			if (smode < MAXMODE && ++m[smode] > maxmode) {
295				savemode = smode;
296				maxmode = m[smode];
297			}
298			sgid = p->fts_statp->st_gid;
299			if (sgid < MAXGID && ++g[sgid] > maxgid) {
300				savegid = sgid;
301				maxgid = g[sgid];
302			}
303			suid = p->fts_statp->st_uid;
304			if (suid < MAXUID && ++u[suid] > maxuid) {
305				saveuid = suid;
306				maxuid = u[suid];
307			}
308		}
309	}
310	/*
311	 * If the /set record is the same as the last one we do not need to output
312	 * a new one.  So first we check to see if anything changed.  Note that we
313	 * always output a /set record for the first directory.
314	 */
315	if ((((keys & F_UNAME) | (keys & F_UID)) && (*puid != saveuid)) ||
316	    (((keys & F_GNAME) | (keys & F_GID)) && (*pgid != savegid)) ||
317	    ((keys & F_MODE) && (*pmode != savemode)) || (first)) {
318		first = 0;
319		if (dflag)
320			(void)printf("/set type=dir");
321		else
322			(void)printf("/set type=file");
323		if (keys & F_UNAME)
324			if ((pw = getpwuid(saveuid)) != NULL)
325				(void)printf(" uname=%s", pw->pw_name);
326			else
327				errx(1,
328				"line %d: could not get uname for uid=%u",
329				lineno, saveuid);
330		if (keys & F_UID)
331			(void)printf(" uid=%lu", (u_long)saveuid);
332		if (keys & F_GNAME)
333			if ((gr = getgrgid(savegid)) != NULL)
334				(void)printf(" gname=%s", gr->gr_name);
335			else
336				errx(1,
337				"line %d: could not get gname for gid=%u",
338				lineno, savegid);
339		if (keys & F_GID)
340			(void)printf(" gid=%lu", (u_long)savegid);
341		if (keys & F_MODE)
342			(void)printf(" mode=%#o", savemode);
343		if (keys & F_NLINK)
344			(void)printf(" nlink=1");
345		(void)printf("\n");
346		*puid = saveuid;
347		*pgid = savegid;
348		*pmode = savemode;
349	}
350	return (0);
351}
352
353static int
354dsort(a, b)
355	const FTSENT **a, **b;
356{
357	if (S_ISDIR((*a)->fts_statp->st_mode)) {
358		if (!S_ISDIR((*b)->fts_statp->st_mode))
359			return (1);
360	} else if (S_ISDIR((*b)->fts_statp->st_mode))
361		return (-1);
362	return (strcmp((*a)->fts_name, (*b)->fts_name));
363}
364
365#if __STDC__
366#include <stdarg.h>
367#else
368#include <varargs.h>
369#endif
370
371void
372#if __STDC__
373output(int indent, int *offset, const char *fmt, ...)
374#else
375output(indent, offset, fmt, va_alist)
376	int indent;
377	int *offset;
378	char *fmt;
379        va_dcl
380#endif
381{
382	va_list ap;
383	char buf[1024];
384#if __STDC__
385	va_start(ap, fmt);
386#else
387	va_start(ap);
388#endif
389	(void)vsnprintf(buf, sizeof(buf), fmt, ap);
390	va_end(ap);
391
392	if (*offset + strlen(buf) > MAXLINELEN - 3) {
393		(void)printf(" \\\n%*s", INDENTNAMELEN + indent, "");
394		*offset = INDENTNAMELEN + indent;
395	}
396	*offset += printf(" %s", buf) + 1;
397}
398