3 * David L. Nugent. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
14 * THIS SOFTWARE IS PROVIDED BY DAVID L. NUGENT AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL DAVID L. NUGENT OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 static const char rcsid[] =
45 static struct passwd *lookup_pwent(const char *user);
46 static void delete_members(struct group *grp, char *list);
47 static int print_group(struct group * grp, bool pretty);
48 static gid_t gr_gidpolicy(struct userconf * cnf, intmax_t id);
51 grp_set_passwd(struct group *grp, bool update, int fd, bool precrypted)
62 grp->gr_passwd = "*"; /* No access */
66 if ((istty = isatty(fd))) {
70 tcsetattr(fd, TCSANOW, &n);
71 printf("%sassword for group %s:", update ? "New p" : "P",
75 b = read(fd, line, sizeof(line) - 1);
76 if (istty) { /* Restore state */
77 tcsetattr(fd, TCSANOW, &t);
82 err(EX_OSERR, "-h file descriptor");
84 if ((p = strpbrk(line, " \t\r\n")) != NULL)
87 errx(EX_DATAERR, "empty password read on file descriptor %d",
90 if (strchr(line, ':') != 0)
91 errx(EX_DATAERR, "wrong encrypted passwrd");
92 grp->gr_passwd = line;
94 grp->gr_passwd = pw_pwcrypt(line);
98 pw_groupnext(struct userconf *cnf, bool quiet)
100 gid_t next = gr_gidpolicy(cnf, -1);
104 printf("%ju\n", (uintmax_t)next);
106 return (EXIT_SUCCESS);
109 static struct group *
110 getgroup(char *name, intmax_t id, bool fatal)
114 if (id < 0 && name == NULL)
115 errx(EX_DATAERR, "groupname or id required");
116 grp = (name != NULL) ? GETGRNAM(name) : GETGRGID(id);
121 errx(EX_DATAERR, "unknown gid `%ju'", id);
122 errx(EX_DATAERR, "unknown group `%s'", name);
128 * Lookup a passwd entry using a name or UID.
130 static struct passwd *
131 lookup_pwent(const char *user)
135 if ((pwd = GETPWNAM(user)) == NULL &&
136 (!isdigit((unsigned char)*user) ||
137 (pwd = getpwuid((uid_t) atoi(user))) == NULL))
138 errx(EX_NOUSER, "user `%s' does not exist", user);
145 * Delete requested members from a group.
148 delete_members(struct group *grp, char *list)
153 if (grp->gr_mem == NULL)
156 for (p = strtok(list, ", \t"); p != NULL; p = strtok(NULL, ", \t")) {
157 for (k = 0; grp->gr_mem[k] != NULL; k++) {
158 if (strcmp(grp->gr_mem[k], p) == 0)
161 if (grp->gr_mem[k] == NULL) /* No match */
164 for (; grp->gr_mem[k] != NULL; k++)
165 grp->gr_mem[k] = grp->gr_mem[k+1];
170 gr_gidpolicy(struct userconf * cnf, intmax_t id)
174 gid_t gid = (gid_t) - 1;
177 * Check the given gid, if any
182 if ((grp = GETGRGID(gid)) != NULL && conf.checkduplicate)
183 errx(EX_DATAERR, "gid `%ju' has already been allocated", (uintmax_t)grp->gr_gid);
188 * We need to allocate the next available gid under one of
189 * two policies a) Grab the first unused gid b) Grab the
190 * highest possible unused gid
192 if (cnf->min_gid >= cnf->max_gid) { /* Sanity claus^H^H^H^Hheck */
194 cnf->max_gid = 32000;
196 bm = bm_alloc(cnf->max_gid - cnf->min_gid + 1);
199 * Now, let's fill the bitmap from the password file
202 while ((grp = GETGRENT()) != NULL)
203 if ((gid_t)grp->gr_gid >= (gid_t)cnf->min_gid &&
204 (gid_t)grp->gr_gid <= (gid_t)cnf->max_gid)
205 bm_setbit(&bm, grp->gr_gid - cnf->min_gid);
209 * Then apply the policy, with fallback to reuse if necessary
212 gid = (gid_t) (bm_firstunset(&bm) + cnf->min_gid);
214 gid = (gid_t) (bm_lastset(&bm) + 1);
215 if (!bm_isset(&bm, gid))
218 gid = (gid_t) (bm_firstunset(&bm) + cnf->min_gid);
222 * Another sanity check
224 if (gid < cnf->min_gid || gid > cnf->max_gid)
225 errx(EX_SOFTWARE, "unable to allocate a new gid - range fully used");
231 print_group(struct group * grp, bool pretty)
237 printf("Group Name: %-15s #%lu\n"
239 grp->gr_name, (long) grp->gr_gid);
240 if (grp->gr_mem != NULL) {
241 for (i = 0; grp->gr_mem[i]; i++)
242 printf("%s%s", i ? "," : "", grp->gr_mem[i]);
244 fputs("\n\n", stdout);
245 return (EXIT_SUCCESS);
251 return (EXIT_SUCCESS);
255 pw_group_next(int argc, char **argv, char *arg1 __unused)
257 struct userconf *cnf;
258 const char *cfg = NULL;
262 while ((ch = getopt(argc, argv, "Cq")) != -1) {
274 freopen(_PATH_DEVNULL, "w", stderr);
275 cnf = get_userconfig(cfg);
276 return (pw_groupnext(cnf, quiet));
280 pw_group_show(int argc, char **argv, char *arg1)
282 struct group *grp = NULL;
286 bool all, force, quiet, pretty;
288 all = force = quiet = pretty = false;
290 struct group fakegroup = {
298 if (strspn(arg1, "0123456789") == strlen(arg1))
299 id = pw_checkid(arg1, GID_MAX);
304 while ((ch = getopt(argc, argv, "C:qn:g:FPa")) != -1) {
307 /* ignore compatibility */
316 id = pw_checkid(optarg, GID_MAX);
331 freopen(_PATH_DEVNULL, "w", stderr);
335 while ((grp = GETGRENT()) != NULL)
336 print_group(grp, pretty);
338 return (EXIT_SUCCESS);
341 grp = getgroup(name, id, !force);
345 return (print_group(grp, pretty));
349 pw_group_del(int argc, char **argv, char *arg1)
351 struct userconf *cnf = NULL;
352 struct group *grp = NULL;
354 const char *cfg = NULL;
361 if (strspn(arg1, "0123456789") == strlen(arg1))
362 id = pw_checkid(arg1, GID_MAX);
367 while ((ch = getopt(argc, argv, "C:qn:g:Y")) != -1) {
379 id = pw_checkid(optarg, GID_MAX);
388 freopen(_PATH_DEVNULL, "w", stderr);
389 grp = getgroup(name, id, true);
390 cnf = get_userconfig(cfg);
393 err(EX_IOERR, "group '%s' not available (NIS?)", name);
395 err(EX_IOERR, "group update");
396 pw_log(cnf, M_DELETE, W_GROUP, "%s(%ju) removed", name,
399 if (nis && nis_update() == 0)
400 pw_log(cnf, M_DELETE, W_GROUP, "NIS maps updated");
402 return (EXIT_SUCCESS);
406 grp_has_member(struct group *grp, const char *name)
410 for (j = 0; grp->gr_mem != NULL && grp->gr_mem[j] != NULL; j++)
411 if (strcmp(grp->gr_mem[j], name) == 0)
417 grp_add_members(struct group **grp, char *members)
425 for (p = strtok(members, tok); p != NULL; p = strtok(NULL, tok)) {
426 pwd = lookup_pwent(p);
427 if (grp_has_member(*grp, pwd->pw_name))
429 *grp = gr_add(*grp, pwd->pw_name);
434 groupadd(struct userconf *cnf, char *name, gid_t id, char *members, int fd,
435 bool dryrun, bool pretty, bool precrypted)
440 struct group fakegroup = {
448 grp->gr_name = pw_checkname(name, 0);
449 grp->gr_passwd = "*";
450 grp->gr_gid = gr_gidpolicy(cnf, id);
454 * This allows us to set a group password Group passwords is an
455 * antique idea, rarely used and insecure (no secure database) Should
456 * be discouraged, but it is apparently still supported by some
459 grp_set_passwd(grp, false, fd, precrypted);
460 grp_add_members(&grp, members);
462 return (print_group(grp, pretty));
464 if ((rc = addgrent(grp)) != 0) {
466 errx(EX_IOERR, "group '%s' already exists",
469 err(EX_IOERR, "group update");
472 pw_log(cnf, M_ADD, W_GROUP, "%s(%ju)", grp->gr_name,
473 (uintmax_t)grp->gr_gid);
475 return (EXIT_SUCCESS);
479 pw_group_add(int argc, char **argv, char *arg1)
481 struct userconf *cnf = NULL;
483 char *members = NULL;
484 const char *cfg = NULL;
487 bool quiet, precrypted, dryrun, pretty, nis;
489 quiet = precrypted = dryrun = pretty = nis = false;
492 if (strspn(arg1, "0123456789") == strlen(arg1))
493 id = pw_checkid(arg1, GID_MAX);
498 while ((ch = getopt(argc, argv, "C:qn:g:h:H:M:oNPY")) != -1) {
510 id = pw_checkid(optarg, GID_MAX);
514 errx(EX_USAGE, "'-h' and '-H' are mutually "
515 "exclusive options");
516 fd = pw_checkfd(optarg);
519 errx(EX_USAGE, "-H expects a file descriptor");
523 errx(EX_USAGE, "'-h' and '-H' are mutually "
524 "exclusive options");
525 fd = pw_checkfd(optarg);
531 conf.checkduplicate = false;
546 freopen(_PATH_DEVNULL, "w", stderr);
548 errx(EX_DATAERR, "group name required");
549 if (GETGRNAM(name) != NULL)
550 errx(EX_DATAERR, "group name `%s' already exists", name);
551 cnf = get_userconfig(cfg);
552 rc = groupadd(cnf, name, gr_gidpolicy(cnf, id), members, fd, dryrun,
554 if (nis && rc == EXIT_SUCCESS && nis_update() == 0)
555 pw_log(cnf, M_ADD, W_GROUP, "NIS maps updated");
561 pw_group_mod(int argc, char **argv, char *arg1)
563 struct userconf *cnf;
564 struct group *grp = NULL;
565 const char *cfg = NULL;
566 char *oldmembers = NULL;
567 char *members = NULL;
568 char *newmembers = NULL;
569 char *newname = NULL;
573 bool quiet, pretty, dryrun, nis, precrypted;
575 quiet = pretty = dryrun = nis = precrypted = false;
578 if (strspn(arg1, "0123456789") == strlen(arg1))
579 id = pw_checkid(arg1, GID_MAX);
584 while ((ch = getopt(argc, argv, "C:qn:d:g:l:h:H:M:m:NPY")) != -1) {
596 id = pw_checkid(optarg, GID_MAX);
606 errx(EX_USAGE, "'-h' and '-H' are mutually "
607 "exclusive options");
608 fd = pw_checkfd(optarg);
611 errx(EX_USAGE, "-H expects a file descriptor");
615 errx(EX_USAGE, "'-h' and '-H' are mutually "
616 "exclusive options");
617 fd = pw_checkfd(optarg);
637 freopen(_PATH_DEVNULL, "w", stderr);
638 cnf = get_userconfig(cfg);
639 grp = getgroup(name, id, true);
646 grp->gr_name = pw_checkname(newname, 0);
648 grp_set_passwd(grp, true, fd, precrypted);
650 * Keep the same logic as old code for now:
651 * if -M is passed, -d and -m are ignored
652 * then id -d, -m is ignored
658 grp_add_members(&grp, members);
659 } else if (oldmembers) {
660 delete_members(grp, oldmembers);
661 } else if (newmembers) {
662 grp_add_members(&grp, newmembers);
665 if ((rc = chggrent(name, grp)) != 0) {
667 errx(EX_IOERR, "group '%s' not available (NIS?)",
670 err(EX_IOERR, "group update");
676 /* grp may have been invalidated */
677 if ((grp = GETGRNAM(name)) == NULL)
678 errx(EX_SOFTWARE, "group disappeared during update");
680 pw_log(cnf, M_UPDATE, W_GROUP, "%s(%ju)", grp->gr_name,
681 (uintmax_t)grp->gr_gid);
683 if (nis && nis_update() == 0)
684 pw_log(cnf, M_UPDATE, W_GROUP, "NIS maps updated");
686 return (EXIT_SUCCESS);