xref: /freebsd/usr.sbin/repquota/repquota.c (revision 7aa383846770374466b1dcb2cefd71bde9acf463)
1 /*
2  * Copyright (c) 1980, 1990, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * This code is derived from software contributed to Berkeley by
6  * Robert Elz at The University of Melbourne.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 4. Neither the name of the University nor the names of its contributors
17  *    may be used to endorse or promote products derived from this software
18  *    without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  */
32 
33 #if 0
34 #ifndef lint
35 static const char copyright[] =
36 "@(#) Copyright (c) 1980, 1990, 1993\n\
37 	The Regents of the University of California.  All rights reserved.\n";
38 #endif /* not lint */
39 
40 #ifndef lint
41 static char sccsid[] = "@(#)repquota.c	8.1 (Berkeley) 6/6/93";
42 #endif /* not lint */
43 #endif
44 #include <sys/cdefs.h>
45 __FBSDID("$FreeBSD$");
46 
47 /*
48  * Quota report
49  */
50 #include <sys/param.h>
51 #include <sys/mount.h>
52 
53 #include <ufs/ufs/quota.h>
54 
55 #include <err.h>
56 #include <errno.h>
57 #include <fcntl.h>
58 #include <fstab.h>
59 #include <grp.h>
60 #include <libutil.h>
61 #include <pwd.h>
62 #include <stdint.h>
63 #include <stdio.h>
64 #include <stdlib.h>
65 #include <string.h>
66 #include <time.h>
67 #include <unistd.h>
68 
69 /* Let's be paranoid about block size */
70 #if 10 > DEV_BSHIFT
71 #define dbtokb(db) \
72 	((off_t)(db) >> (10-DEV_BSHIFT))
73 #elif 10 < DEV_BSHIFT
74 #define dbtokb(db) \
75 	((off_t)(db) << (DEV_BSHIFT-10))
76 #else
77 #define dbtokb(db)	(db)
78 #endif
79 
80 #define max(a,b) ((a) >= (b) ? (a) : (b))
81 
82 const char *qfname = QUOTAFILENAME;
83 const char *qfextension[] = INITQFNAMES;
84 
85 struct fileusage {
86 	struct	fileusage *fu_next;
87 	u_long	fu_id;
88 	char	fu_name[1];
89 	/* actually bigger */
90 };
91 #define FUHASH 1024	/* must be power of two */
92 struct fileusage *fuhead[MAXQUOTAS][FUHASH];
93 struct fileusage *lookup(u_long, int);
94 struct fileusage *addid(u_long, int, char *);
95 u_long highid[MAXQUOTAS];	/* highest addid()'ed identifier per type */
96 
97 int	vflag;			/* verbose */
98 int	aflag;			/* all filesystems */
99 int	nflag;			/* display user/group by id */
100 int	hflag;			/* display in human readable format */
101 
102 int oneof(char *, char *[], int);
103 int repquota(struct fstab *, int);
104 char *timeprt(time_t);
105 static void prthumanval(int64_t bytes);
106 static void usage(void);
107 
108 int
109 main(int argc, char *argv[])
110 {
111 	struct fstab *fs;
112 	struct passwd *pw;
113 	struct group *gr;
114 	int ch, gflag = 0, uflag = 0, errs = 0;
115 	long i, argnum, done = 0;
116 
117 	while ((ch = getopt(argc, argv, "aghnuv")) != -1) {
118 		switch(ch) {
119 		case 'a':
120 			aflag++;
121 			break;
122 		case 'g':
123 			gflag++;
124 			break;
125 		case 'h':
126 			hflag++;
127 			break;
128 		case 'n':
129 			nflag++;
130 			break;
131 		case 'u':
132 			uflag++;
133 			break;
134 		case 'v':
135 			vflag++;
136 			break;
137 		default:
138 			usage();
139 		}
140 	}
141 	argc -= optind;
142 	argv += optind;
143 	if (argc == 0 && !aflag)
144 		usage();
145 	if (!gflag && !uflag) {
146 		if (aflag)
147 			gflag++;
148 		uflag++;
149 	}
150 	if (gflag && !nflag) {
151 		setgrent();
152 		while ((gr = getgrent()) != 0)
153 			(void) addid((u_long)gr->gr_gid, GRPQUOTA, gr->gr_name);
154 		endgrent();
155 	}
156 	if (uflag && !nflag) {
157 		setpwent();
158 		while ((pw = getpwent()) != 0)
159 			(void) addid((u_long)pw->pw_uid, USRQUOTA, pw->pw_name);
160 		endpwent();
161 	}
162 	setfsent();
163 	while ((fs = getfsent()) != NULL) {
164 		if (strcmp(fs->fs_vfstype, "ufs"))
165 			continue;
166 		if (aflag) {
167 			if (gflag)
168 				errs += repquota(fs, GRPQUOTA);
169 			if (uflag)
170 				errs += repquota(fs, USRQUOTA);
171 			continue;
172 		}
173 		if ((argnum = oneof(fs->fs_file, argv, argc)) >= 0 ||
174 		    (argnum = oneof(fs->fs_spec, argv, argc)) >= 0) {
175 			done |= 1 << argnum;
176 			if (gflag)
177 				errs += repquota(fs, GRPQUOTA);
178 			if (uflag)
179 				errs += repquota(fs, USRQUOTA);
180 		}
181 	}
182 	endfsent();
183 	for (i = 0; i < argc; i++)
184 		if ((done & (1 << i)) == 0)
185 			warnx("%s not found in fstab", argv[i]);
186 	exit(errs);
187 }
188 
189 static void
190 usage(void)
191 {
192 	fprintf(stderr, "%s\n%s\n",
193 		"usage: repquota [-h] [-v] [-g] [-n] [-u] -a",
194 		"       repquota [-h] [-v] [-g] [-n] [-u] filesystem ...");
195 	exit(1);
196 }
197 
198 int
199 repquota(struct fstab *fs, int type)
200 {
201 	struct fileusage *fup;
202 	struct quotafile *qf;
203 	u_long id, maxid;
204 	struct dqblk dqbuf;
205 	static int multiple = 0;
206 
207 	if ((qf = quota_open(fs, type, O_RDONLY)) == NULL) {
208 		if (vflag && !aflag) {
209 			if (multiple++)
210 				printf("\n");
211 			fprintf(stdout, "*** No %s quotas on %s (%s)\n",
212 			    qfextension[type], fs->fs_file, fs->fs_spec);
213 			return(1);
214 		}
215 		return(0);
216 	}
217 	if (multiple++)
218 		printf("\n");
219 	if (vflag)
220 		fprintf(stdout, "*** Report for %s quotas on %s (%s)\n",
221 		    qfextension[type], fs->fs_file, fs->fs_spec);
222 	printf("%*s           Block  limits                    File  limits\n",
223 		max(MAXLOGNAME - 1, 10), " ");
224 	printf("User%*s  used   soft   hard  grace     used    soft    hard  grace\n",
225 		max(MAXLOGNAME - 1, 10), " ");
226 	maxid = quota_maxid(qf);
227 	for (id = 0; id <= maxid; id++) {
228 		if (quota_read(qf, &dqbuf, id) != 0)
229 			break;
230 		if (dqbuf.dqb_curinodes == 0 && dqbuf.dqb_curblocks == 0)
231 			continue;
232 		if ((fup = lookup(id, type)) == 0)
233 			fup = addid(id, type, (char *)0);
234 		printf("%-*s ", max(MAXLOGNAME - 1, 10), fup->fu_name);
235 		printf("%c%c",
236 		    dqbuf.dqb_bsoftlimit &&
237 		    dqbuf.dqb_curblocks >=
238 		    dqbuf.dqb_bsoftlimit ? '+' : '-',
239 		    dqbuf.dqb_isoftlimit &&
240 		    dqbuf.dqb_curinodes >=
241 		    dqbuf.dqb_isoftlimit ? '+' : '-');
242 		prthumanval(dqbuf.dqb_curblocks);
243 		prthumanval(dqbuf.dqb_bsoftlimit);
244 		prthumanval(dqbuf.dqb_bhardlimit);
245 		printf(" %6s",
246 		    dqbuf.dqb_bsoftlimit &&
247 		    dqbuf.dqb_curblocks >=
248 		    dqbuf.dqb_bsoftlimit ?
249 		    timeprt(dqbuf.dqb_btime) : "-");
250 		printf("  %7ju %7ju %7ju %6s\n",
251 		    (uintmax_t)dqbuf.dqb_curinodes,
252 		    (uintmax_t)dqbuf.dqb_isoftlimit,
253 		    (uintmax_t)dqbuf.dqb_ihardlimit,
254 		    dqbuf.dqb_isoftlimit &&
255 		    dqbuf.dqb_curinodes >=
256 		    dqbuf.dqb_isoftlimit ?
257 		    timeprt(dqbuf.dqb_itime) : "-");
258 	}
259 	quota_close(qf);
260 	return (0);
261 }
262 
263 static void
264 prthumanval(int64_t blocks)
265 {
266 	char buf[7];
267 	int flags;
268 
269 	if (!hflag) {
270 		printf(" %6ju", (uintmax_t)dbtokb(blocks));
271 		return;
272 	}
273 	flags = HN_NOSPACE | HN_DECIMAL;
274 	if (blocks != 0)
275 		flags |= HN_B;
276 	humanize_number(buf, sizeof(buf) - (blocks < 0 ? 0 : 1),
277 	    dbtob(blocks), "", HN_AUTOSCALE, flags);
278 	(void)printf("%7s", buf);
279 }
280 
281 /*
282  * Check to see if target appears in list of size cnt.
283  */
284 int
285 oneof(char *target, char *list[], int cnt)
286 {
287 	int i;
288 
289 	for (i = 0; i < cnt; i++)
290 		if (strcmp(target, list[i]) == 0)
291 			return (i);
292 	return (-1);
293 }
294 
295 /*
296  * Routines to manage the file usage table.
297  *
298  * Lookup an id of a specific type.
299  */
300 struct fileusage *
301 lookup(u_long id, int type)
302 {
303 	struct fileusage *fup;
304 
305 	for (fup = fuhead[type][id & (FUHASH-1)]; fup != 0; fup = fup->fu_next)
306 		if (fup->fu_id == id)
307 			return (fup);
308 	return ((struct fileusage *)0);
309 }
310 
311 /*
312  * Add a new file usage id if it does not already exist.
313  */
314 struct fileusage *
315 addid(u_long id, int type, char *name)
316 {
317 	struct fileusage *fup, **fhp;
318 	int len;
319 
320 	if ((fup = lookup(id, type)))
321 		return (fup);
322 	if (name)
323 		len = strlen(name);
324 	else
325 		len = 10;
326 	if ((fup = (struct fileusage *)calloc(1, sizeof(*fup) + len)) == NULL)
327 		errx(1, "out of memory for fileusage structures");
328 	fhp = &fuhead[type][id & (FUHASH - 1)];
329 	fup->fu_next = *fhp;
330 	*fhp = fup;
331 	fup->fu_id = id;
332 	if (id > highid[type])
333 		highid[type] = id;
334 	if (name) {
335 		bcopy(name, fup->fu_name, len + 1);
336 	} else {
337 		sprintf(fup->fu_name, "%lu", id);
338 	}
339 	return (fup);
340 }
341 
342 /*
343  * Calculate the grace period and return a printable string for it.
344  */
345 char *
346 timeprt(time_t seconds)
347 {
348 	time_t hours, minutes;
349 	static char buf[20];
350 	static time_t now;
351 
352 	if (now == 0)
353 		time(&now);
354 	if (now > seconds) {
355 		strlcpy(buf, "none", sizeof (buf));
356 		return (buf);
357 	}
358 	seconds -= now;
359 	minutes = (seconds + 30) / 60;
360 	hours = (minutes + 30) / 60;
361 	if (hours >= 36) {
362 		sprintf(buf, "%lddays", (long)(hours + 12) / 24);
363 		return (buf);
364 	}
365 	if (minutes >= 60) {
366 		sprintf(buf, "%2ld:%ld", (long)minutes / 60,
367 		    (long)minutes % 60);
368 		return (buf);
369 	}
370 	sprintf(buf, "%2ld", (long)minutes);
371 	return (buf);
372 }
373