1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
59 static USRT **usrtb = NULL;		/* user selection table */
84  * User/group selection routines
86  * Routines to handle user selection of files based on the file uid/gid. To
87  * add an entry, the user supplies either the name or the uid/gid starting with
93  *	add a user match to the user match hash table
95  *	0 if added ok, -1 otherwise;
110 		return(-1);  in usr_add()
113 		paxwarn(1, "Unable to allocate memory for user selection table");  in usr_add()
114 		return(-1);  in usr_add()
118 	 * figure out user spec  in usr_add()
122 		 * it is a user name, \# escapes # as first char in user name  in usr_add()
127 			paxwarn(1, "Unable to find uid for user: %s", str);  in usr_add()
128 			return(-1);  in usr_add()
130 		uid = (uid_t)pw->pw_uid;  in usr_add()
141 			if (pt->uid == uid)  in usr_add()
143 			pt = pt->fow;  in usr_add()
151 		pt->uid = uid;  in usr_add()
152 		pt->fow = usrtb[indx];  in usr_add()
156 	paxwarn(1, "User selection table out of memory");  in usr_add()
157 	return(-1);  in usr_add()
162  *	check if this files uid matches a selected uid.
175 	pt = usrtb[((unsigned)arcn->sb.st_uid) % USR_TB_SZ];  in usr_match()
177 		if (pt->uid == arcn->sb.st_uid)  in usr_match()
179 		pt = pt->fow;  in usr_match()
192  *	0 if added ok, -1 otherwise;
207 		return(-1);  in grp_add()
211 		return(-1);  in grp_add()
215 	 * figure out user spec  in grp_add()
225 			return(-1);  in grp_add()
227 		gid = gr->gr_gid;  in grp_add()
238 			if (pt->gid == gid)  in grp_add()
240 			pt = pt->fow;  in grp_add()
248 		pt->gid = gid;  in grp_add()
249 		pt->fow = grptb[indx];  in grp_add()
254 	return(-1);  in grp_add()
259  *	check if this files gid matches a selected gid.
272 	pt = grptb[((unsigned)arcn->sb.st_gid) % GRP_TB_SZ];  in grp_match()
274 		if (pt->gid == arcn->sb.st_gid)  in grp_match()
276 		pt = pt->fow;  in grp_match()
288  * Routines to handle user selection of files based on the modification and/or
289  * inode change time falling within a specified time range (the non-standard
290  * -T flag). The user may specify any number of different file time ranges.
293  * ranges, the file is selected. Time ranges may have a lower and/or an upper
295  * with the -T option, all members in the archive will be selected by the time
297  * mtime (and/or ctime) equal to or younger are selected. When only an upper
299  * are selected. When the lower time range is equal to the upper time range,
300  * only files with a mtime (or ctime) of exactly that time are selected.
306  *	This is a non-standard pax option. Lower and upper ranges are in the
311  *	0 if the time range was added to the list, -1 otherwise
328 		return(-1);  in trng_add()
363 		return(-1);  in trng_add()
367 	 * by default we only will check file mtime, but the user can specify  in trng_add()
371 		pt->flgs = CMPMTME;  in trng_add()
373 		pt->flgs = 0;  in trng_add()
378 				pt->flgs |= CMPMTME;  in trng_add()
382 				pt->flgs |= CMPCTME;  in trng_add()
397 	pt->low_time = pt->high_time = time(NULL);  in trng_add()
402 		if (str_sec(str, &(pt->low_time)) < 0) {  in trng_add()
407 		pt->flgs |= HASLOW;  in trng_add()
414 		if (str_sec(up_pt, &(pt->high_time)) < 0) {  in trng_add()
419 		pt->flgs |= HASHIGH;  in trng_add()
424 		if (pt->flgs & HASLOW) {  in trng_add()
425 			if (pt->low_time > pt->high_time) {  in trng_add()
429 				return(-1);  in trng_add()
434 	pt->fow = NULL;  in trng_add()
439 	trtail->fow = pt;  in trng_add()
445 	return(-1);  in trng_add()
466 		switch(pt->flgs & CMPBOTH) {  in trng_match()
469 			 * user wants both mtime and ctime checked for this  in trng_match()
472 			if (((pt->flgs & HASLOW) &&  in trng_match()
473 			    (arcn->sb.st_mtime < pt->low_time) &&  in trng_match()
474 			    (arcn->sb.st_ctime < pt->low_time)) ||  in trng_match()
475 			    ((pt->flgs & HASHIGH) &&  in trng_match()
476 			    (arcn->sb.st_mtime > pt->high_time) &&  in trng_match()
477 			    (arcn->sb.st_ctime > pt->high_time))) {  in trng_match()
478 				pt = pt->fow;  in trng_match()
484 			 * user wants only ctime checked for this time range  in trng_match()
486 			if (((pt->flgs & HASLOW) &&  in trng_match()
487 			    (arcn->sb.st_ctime < pt->low_time)) ||  in trng_match()
488 			    ((pt->flgs & HASHIGH) &&  in trng_match()
489 			    (arcn->sb.st_ctime > pt->high_time))) {  in trng_match()
490 				pt = pt->fow;  in trng_match()
497 			 * user wants only mtime checked for this time range  in trng_match()
499 			if (((pt->flgs & HASLOW) &&  in trng_match()
500 			    (arcn->sb.st_mtime < pt->low_time)) ||  in trng_match()
501 			    ((pt->flgs & HASHIGH) &&  in trng_match()
502 			    (arcn->sb.st_mtime > pt->high_time))) {  in trng_match()
503 				pt = pt->fow;  in trng_match()
521  *	0 if converted ok, -1 otherwise
543 		return(-1);  in str_sec()
550 			return(-1);  in str_sec()
551 		lt->tm_sec = ATOI2(dot);  in str_sec()
552 		if (lt->tm_sec > 61)  in str_sec()
553 			return(-1);  in str_sec()
554 		len -= 3;  in str_sec()
556 		lt->tm_sec = 0;  in str_sec()
561 		lt->tm_year = (bigyear * 100) - 1900;  in str_sec()
566 			lt->tm_year += ATOI2(p);  in str_sec()
568 			lt->tm_year = ATOI2(p);  in str_sec()
569 			if (lt->tm_year < 69)		/* hack for 2000 ;-} */  in str_sec()
570 				lt->tm_year += (2000 - 1900);  in str_sec()
574 		lt->tm_mon = ATOI2(p);  in str_sec()
575 		if ((lt->tm_mon > 12) || !lt->tm_mon)  in str_sec()
576 			return(-1);  in str_sec()
577 		--lt->tm_mon;			/* time struct is 0 - 11 */  in str_sec()
580 		lt->tm_mday = ATOI2(p);  in str_sec()
581 		if ((lt->tm_mday > 31) || !lt->tm_mday)  in str_sec()
582 			return(-1);  in str_sec()
585 		lt->tm_hour = ATOI2(p);  in str_sec()
586 		if (lt->tm_hour > 23)  in str_sec()
587 			return(-1);  in str_sec()
590 		lt->tm_min = ATOI2(p);  in str_sec()
591 		if (lt->tm_min > 59)  in str_sec()
592 			return(-1);  in str_sec()
595 		return(-1);  in str_sec()
598 	/* convert broken-down time to UTC clock time seconds */  in str_sec()
599 	if ((*tval = mktime(lt)) == -1)  in str_sec()
600 		return(-1);  in str_sec()