2 * Copyright (c) 1992 Keith Muller.
3 * Copyright (c) 1992, 1993
4 * The Regents of the University of California. All rights reserved.
6 * This code is derived from software contributed to Berkeley by
7 * Keith Muller of the University of California, San Diego.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * @(#)sel_subs.c 8.1 (Berkeley) 5/31/93
38 * $FreeBSD: src/bin/pax/sel_subs.c,v 1.11.2.1 2001/08/01 05:03:11 obrien Exp $
39 * $DragonFly: src/bin/pax/sel_subs.c,v 1.8 2006/09/27 23:58:08 pavalos Exp $
42 #include <sys/types.h>
56 static int str_sec (char *, time_t *);
57 static int usr_match (ARCHD
*);
58 static int grp_match (ARCHD
*);
59 static int trng_match (ARCHD
*);
61 static TIME_RNG
*trhead
= NULL
; /* time range list head */
62 static TIME_RNG
*trtail
= NULL
; /* time range list tail */
63 static USRT
**usrtb
= NULL
; /* user selection table */
64 static GRPT
**grptb
= NULL
; /* group selection table */
67 * Routines for selection of archive members
72 * check if this file matches a specified uid, gid or time range
74 * 0 if this archive member should be processed, 1 if it should be skipped
80 if (((usrtb
!= NULL
) && usr_match(arcn
)) ||
81 ((grptb
!= NULL
) && grp_match(arcn
)) ||
82 ((trhead
!= NULL
) && trng_match(arcn
)))
88 * User/group selection routines
90 * Routines to handle user selection of files based on the file uid/gid. To
91 * add an entry, the user supplies either the name or the uid/gid starting with
92 * a # on the command line. A \# will escape the #.
97 * add a user match to the user match hash table
99 * 0 if added ok, -1 otherwise;
111 * create the table if it doesn't exist
113 if ((str
== NULL
) || (*str
== '\0'))
115 if ((usrtb
== NULL
) &&
116 ((usrtb
= (USRT
**)calloc(USR_TB_SZ
, sizeof(USRT
*))) == NULL
)) {
117 paxwarn(1, "Unable to allocate memory for user selection table");
122 * figure out user spec
126 * it is a user name, \# escapes # as first char in user name
128 if ((str
[0] == '\\') && (str
[1] == '#'))
130 if ((pw
= getpwnam(str
)) == NULL
) {
131 paxwarn(1, "Unable to find uid for user: %s", str
);
134 uid
= (uid_t
)pw
->pw_uid
;
136 uid
= (uid_t
)strtoul(str
+1, NULL
, 10);
140 * hash it and go down the hash chain (if any) looking for it
142 indx
= ((unsigned)uid
) % USR_TB_SZ
;
143 if ((pt
= usrtb
[indx
]) != NULL
) {
152 * uid is not yet in the table, add it to the front of the chain
154 if ((pt
= (USRT
*)malloc(sizeof(USRT
))) != NULL
) {
156 pt
->fow
= usrtb
[indx
];
160 paxwarn(1, "User selection table out of memory");
166 * check if this files uid matches a selected uid.
168 * 0 if this archive member should be processed, 1 if it should be skipped
172 usr_match(ARCHD
*arcn
)
177 * hash and look for it in the table
179 pt
= usrtb
[((unsigned)arcn
->sb
.st_uid
) % USR_TB_SZ
];
181 if (pt
->uid
== arcn
->sb
.st_uid
)
194 * add a group match to the group match hash table
196 * 0 if added ok, -1 otherwise;
208 * create the table if it doesn't exist
210 if ((str
== NULL
) || (*str
== '\0'))
212 if ((grptb
== NULL
) &&
213 ((grptb
= (GRPT
**)calloc(GRP_TB_SZ
, sizeof(GRPT
*))) == NULL
)) {
214 paxwarn(1, "Unable to allocate memory fo group selection table");
219 * figure out user spec
223 * it is a group name, \# escapes # as first char in group name
225 if ((str
[0] == '\\') && (str
[1] == '#'))
227 if ((gr
= getgrnam(str
)) == NULL
) {
228 paxwarn(1,"Cannot determine gid for group name: %s", str
);
231 gid
= (gid_t
)gr
->gr_gid
;
233 gid
= (gid_t
)strtoul(str
+1, NULL
, 10);
237 * hash it and go down the hash chain (if any) looking for it
239 indx
= ((unsigned)gid
) % GRP_TB_SZ
;
240 if ((pt
= grptb
[indx
]) != NULL
) {
249 * gid not in the table, add it to the front of the chain
251 if ((pt
= (GRPT
*)malloc(sizeof(GRPT
))) != NULL
) {
253 pt
->fow
= grptb
[indx
];
257 paxwarn(1, "Group selection table out of memory");
263 * check if this files gid matches a selected gid.
265 * 0 if this archive member should be processed, 1 if it should be skipped
269 grp_match(ARCHD
*arcn
)
274 * hash and look for it in the table
276 pt
= grptb
[((unsigned)arcn
->sb
.st_gid
) % GRP_TB_SZ
];
278 if (pt
->gid
== arcn
->sb
.st_gid
)
290 * Time range selection routines
292 * Routines to handle user selection of files based on the modification and/or
293 * inode change time falling within a specified time range (the non-standard
294 * -T flag). The user may specify any number of different file time ranges.
295 * Time ranges are checked one at a time until a match is found (if at all).
296 * If the file has a mtime (and/or ctime) which lies within one of the time
297 * ranges, the file is selected. Time ranges may have a lower and/or a upper
298 * value. These ranges are inclusive. When no time ranges are supplied to pax
299 * with the -T option, all members in the archive will be selected by the time
300 * range routines. When only a lower range is supplied, only files with a
301 * mtime (and/or ctime) equal to or younger are selected. When only a upper
302 * range is supplied, only files with a mtime (and/or ctime) equal to or older
303 * are selected. When the lower time range is equal to the upper time range,
304 * only files with a mtime (or ctime) of exactly that time are selected.
309 * add a time range match to the time range list.
310 * This is a non-standard pax option. Lower and upper ranges are in the
311 * format: [yy[mm[dd[hh]]]]mm[.ss] and are comma separated.
312 * Time ranges are based on current time, so 1234 would specify a time of
315 * 0 if the time range was added to the list, -1 otherwise
328 * throw out the badly formed time ranges
330 if ((str
== NULL
) || (*str
== '\0')) {
331 paxwarn(1, "Empty time range string");
336 * locate optional flags suffix /{cm}.
338 if ((flgpt
= strrchr(str
, '/')) != NULL
)
341 for (stpt
= str
; *stpt
!= '\0'; ++stpt
) {
342 if ((*stpt
>= '0') && (*stpt
<= '9'))
344 if ((*stpt
== ',') && (up_pt
== NULL
)) {
352 * allow only one dot per range (secs)
354 if ((*stpt
== '.') && (!dot
)) {
358 paxwarn(1, "Improperly specified time range: %s", str
);
363 * allocate space for the time range and store the limits
365 if ((pt
= (TIME_RNG
*)malloc(sizeof(TIME_RNG
))) == NULL
) {
366 paxwarn(1, "Unable to allocate memory for time range");
371 * by default we only will check file mtime, but user can specify
372 * mtime, ctime (inode change time) or both.
374 if ((flgpt
== NULL
) || (*flgpt
== '\0'))
378 while (*flgpt
!= '\0') {
389 paxwarn(1, "Bad option %c with time range %s",
398 * start off with the current time
400 pt
->low_time
= pt
->high_time
= time(NULL
);
405 if (str_sec(str
, &(pt
->low_time
)) < 0) {
406 paxwarn(1, "Illegal lower time range %s", str
);
413 if ((up_pt
!= NULL
) && (*up_pt
!= '\0')) {
417 if (str_sec(up_pt
, &(pt
->high_time
)) < 0) {
418 paxwarn(1, "Illegal upper time range %s", up_pt
);
425 * check that the upper and lower do not overlap
427 if (pt
->flgs
& HASLOW
) {
428 if (pt
->low_time
> pt
->high_time
) {
429 paxwarn(1, "Upper %s and lower %s time overlap",
438 if (trhead
== NULL
) {
439 trtail
= trhead
= pt
;
447 paxwarn(1, "Time range format is: [yy[mm[dd[hh]]]]mm[.ss][/[c][m]]");
453 * check if this files mtime/ctime falls within any supplied time range.
455 * 0 if this archive member should be processed, 1 if it should be skipped
459 trng_match(ARCHD
*arcn
)
464 * have to search down the list one at a time looking for a match.
465 * remember time range limits are inclusive.
469 switch(pt
->flgs
& CMPBOTH
) {
472 * user wants both mtime and ctime checked for this
475 if (((pt
->flgs
& HASLOW
) &&
476 (arcn
->sb
.st_mtime
< pt
->low_time
) &&
477 (arcn
->sb
.st_ctime
< pt
->low_time
)) ||
478 ((pt
->flgs
& HASHIGH
) &&
479 (arcn
->sb
.st_mtime
> pt
->high_time
) &&
480 (arcn
->sb
.st_ctime
> pt
->high_time
))) {
487 * user wants only ctime checked for this time range
489 if (((pt
->flgs
& HASLOW
) &&
490 (arcn
->sb
.st_ctime
< pt
->low_time
)) ||
491 ((pt
->flgs
& HASHIGH
) &&
492 (arcn
->sb
.st_ctime
> pt
->high_time
))) {
500 * user wants only mtime checked for this time range
502 if (((pt
->flgs
& HASLOW
) &&
503 (arcn
->sb
.st_mtime
< pt
->low_time
)) ||
504 ((pt
->flgs
& HASHIGH
) &&
505 (arcn
->sb
.st_mtime
> pt
->high_time
))) {
521 * Convert a time string in the format of [yy[mm[dd[hh]]]]mm[.ss] to gmt
522 * seconds. Tval already has current time loaded into it at entry.
524 * 0 if converted ok, -1 otherwise
528 str_sec(char *str
, time_t *tval
)
533 lt
= localtime(tval
);
534 if ((dot
= strchr(str
, '.')) != NULL
) {
539 if (strlen(dot
) != 2)
541 if ((lt
->tm_sec
= ATOI2(dot
)) > 61)
546 switch (strlen(str
)) {
550 * watch out for year 2000
552 if ((lt
->tm_year
= ATOI2(str
)) < 69)
559 * watch out months are from 0 - 11 internally
561 if ((lt
->tm_mon
= ATOI2(str
)) > 12)
570 if ((lt
->tm_mday
= ATOI2(str
)) > 31)
578 if ((lt
->tm_hour
= ATOI2(str
)) > 23)
586 if ((lt
->tm_min
= ATOI2(str
)) > 59)
593 * convert broken-down time to GMT clock time seconds
595 if ((*tval
= mktime(lt
)) == -1)