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Add META_MODE support.
[pw-darwin.git] / pw / pw.c
1 /*-
2 * Copyright (C) 1996
3 * David L. Nugent. 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 *
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
24 * SUCH DAMAGE.
25 */
26
27 #ifndef lint
28 static const char rcsid[] =
29 "$FreeBSD$";
30 #endif /* not lint */
31
32 #include <err.h>
33 #include <fcntl.h>
34 #include <locale.h>
35 #include <paths.h>
36 #include <stdbool.h>
37 #include <sys/wait.h>
38 #include "pw.h"
39
40 #if !defined(_PATH_YP)
41 #define _PATH_YP "/var/yp/"
42 #endif
43 const char *Modes[] = {
44 "add", "del", "mod", "show", "next",
45 NULL};
46 const char *Which[] = {"user", "group", NULL};
47 static const char *Combo1[] = {
48 "useradd", "userdel", "usermod", "usershow", "usernext",
49 "lock", "unlock",
50 "groupadd", "groupdel", "groupmod", "groupshow", "groupnext",
51 NULL};
52 static const char *Combo2[] = {
53 "adduser", "deluser", "moduser", "showuser", "nextuser",
54 "lock", "unlock",
55 "addgroup", "delgroup", "modgroup", "showgroup", "nextgroup",
56 NULL};
57
58 struct pwf PWF =
59 {
60 PWF_REGULAR,
61 setpwent,
62 endpwent,
63 getpwent,
64 getpwuid,
65 getpwnam,
66 setgrent,
67 endgrent,
68 getgrent,
69 getgrgid,
70 getgrnam,
71
72 };
73 struct pwf VPWF =
74 {
75 PWF_ALT,
76 vsetpwent,
77 vendpwent,
78 vgetpwent,
79 vgetpwuid,
80 vgetpwnam,
81 vsetgrent,
82 vendgrent,
83 vgetgrent,
84 vgetgrgid,
85 vgetgrnam,
86 };
87
88 struct pwconf conf;
89
90 static struct cargs arglist;
91
92 static int getindex(const char *words[], const char *word);
93 static void cmdhelp(int mode, int which);
94
95
96 int
97 main(int argc, char *argv[])
98 {
99 int ch;
100 int mode = -1;
101 int which = -1;
102 long id = -1;
103 char *config = NULL;
104 struct stat st;
105 const char *errstr;
106 char arg, *name;
107 bool relocated, nis;
108
109 static const char *opts[W_NUM][M_NUM] =
110 {
111 { /* user */
112 "R:V:C:qn:u:c:d:e:p:g:G:mM:k:s:oL:i:w:h:H:Db:NPy:Y",
113 "R:V:C:qn:u:rY",
114 "R:V:C:qn:u:c:d:e:p:g:G:mM:l:k:s:w:L:h:H:FNPY",
115 "R:V:C:qn:u:FPa7",
116 "R:V:C:q",
117 "R:V:C:q",
118 "R:V:C:q"
119 },
120 { /* grp */
121 "R:V:C:qn:g:h:H:M:opNPY",
122 "R:V:C:qn:g:Y",
123 "R:V:C:qn:d:g:l:h:H:FM:m:NPY",
124 "R:V:C:qn:g:FPa",
125 "R:V:C:q"
126 }
127 };
128
129 static int (*funcs[W_NUM]) (int _mode, char *_name, long _id,
130 struct cargs * _args) =
131 { /* Request handlers */
132 pw_user,
133 pw_group
134 };
135
136 name = NULL;
137 relocated = nis = false;
138 memset(&conf, 0, sizeof(conf));
139 strlcpy(conf.etcpath, _PATH_PWD, sizeof(conf.etcpath));
140
141 LIST_INIT(&arglist);
142
143 (void)setlocale(LC_ALL, "");
144
145 /*
146 * Break off the first couple of words to determine what exactly
147 * we're being asked to do
148 */
149 while (argc > 1) {
150 int tmp;
151
152 if (*argv[1] == '-') {
153 /*
154 * Special case, allow pw -V<dir> <operation> [args] for scripts etc.
155 */
156 arg = argv[1][1];
157 if (arg == 'V' || arg == 'R') {
158 if (relocated)
159 errx(EXIT_FAILURE, "Both '-R' and '-V' "
160 "specified, only one accepted");
161 relocated = true;
162 optarg = &argv[1][2];
163 if (*optarg == '\0') {
164 if (stat(argv[2], &st) != 0)
165 errx(EX_OSFILE, \
166 "no such directory `%s'",
167 argv[2]);
168 if (!S_ISDIR(st.st_mode))
169 errx(EX_OSFILE, "`%s' not a "
170 "directory", argv[2]);
171 optarg = argv[2];
172 ++argv;
173 --argc;
174 }
175 memcpy(&PWF, &VPWF, sizeof PWF);
176 if (arg == 'R') {
177 strlcpy(conf.rootdir, optarg,
178 sizeof(conf.rootdir));
179 PWF._altdir = PWF_ROOTDIR;
180 }
181 snprintf(conf.etcpath, sizeof(conf.etcpath),
182 "%s%s", optarg, arg == 'R' ? "/etc" : "");
183 } else
184 break;
185 }
186 else if (mode == -1 && (tmp = getindex(Modes, argv[1])) != -1)
187 mode = tmp;
188 else if (which == -1 && (tmp = getindex(Which, argv[1])) != -1)
189 which = tmp;
190 else if ((mode == -1 && which == -1) &&
191 ((tmp = getindex(Combo1, argv[1])) != -1 ||
192 (tmp = getindex(Combo2, argv[1])) != -1)) {
193 which = tmp / M_NUM;
194 mode = tmp % M_NUM;
195 } else if (strcmp(argv[1], "help") == 0 && argv[2] == NULL)
196 cmdhelp(mode, which);
197 else if (which != -1 && mode != -1) {
198 if (strspn(argv[1], "0123456789") == strlen(argv[1])) {
199 id = strtonum(argv[1], 0, LONG_MAX, &errstr);
200 if (errstr != NULL)
201 errx(EX_USAGE, "Bad id '%s': %s",
202 argv[1], errstr);
203 } else
204 name = argv[1];
205 } else
206 errx(EX_USAGE, "unknown keyword `%s'", argv[1]);
207 ++argv;
208 --argc;
209 }
210
211 /*
212 * Bail out unless the user is specific!
213 */
214 if (mode == -1 || which == -1)
215 cmdhelp(mode, which);
216
217 /*
218 * We know which mode we're in and what we're about to do, so now
219 * let's dispatch the remaining command line args in a genric way.
220 */
221 optarg = NULL;
222
223 while ((ch = getopt(argc, argv, opts[which][mode])) != -1) {
224 switch (ch) {
225 case '?':
226 errx(EX_USAGE, "unknown switch");
227 break;
228 case '7':
229 conf.v7 = true;
230 break;
231 case 'C':
232 conf.config = optarg;
233 config = conf.config;
234 break;
235 case 'N':
236 conf.dryrun = true;
237 break;
238 case 'l':
239 if (strlen(optarg) >= MAXLOGNAME)
240 errx(EX_USAGE, "new name too long: %s", optarg);
241 conf.newname = optarg;
242 break;
243 case 'P':
244 conf.pretty = true;
245 break;
246 case 'Y':
247 nis = true;
248 break;
249 case 'g':
250 if (which == 0) { /* for user* */
251 addarg(&arglist, 'g', optarg);
252 break;
253 }
254 if (strspn(optarg, "0123456789") != strlen(optarg))
255 errx(EX_USAGE, "-g expects a number");
256 id = strtonum(optarg, 0, LONG_MAX, &errstr);
257 if (errstr != NULL)
258 errx(EX_USAGE, "Bad id '%s': %s", optarg,
259 errstr);
260 break;
261 case 'u':
262 if (strspn(optarg, "0123456789,") != strlen(optarg))
263 errx(EX_USAGE, "-u expects a number");
264 if (strchr(optarg, ',') != NULL) {
265 addarg(&arglist, 'u', optarg);
266 break;
267 }
268 id = strtonum(optarg, 0, LONG_MAX, &errstr);
269 if (errstr != NULL)
270 errx(EX_USAGE, "Bad id '%s': %s", optarg,
271 errstr);
272 break;
273 case 'n':
274 if (strspn(optarg, "0123456789") != strlen(optarg)) {
275 name = optarg;
276 break;
277 }
278 id = strtonum(optarg, 0, LONG_MAX, &errstr);
279 if (errstr != NULL)
280 errx(EX_USAGE, "Bad id '%s': %s", optarg,
281 errstr);
282 break;
283 case 'o':
284 conf.checkduplicate = true;
285 break;
286 default:
287 addarg(&arglist, ch, optarg);
288 break;
289 }
290 optarg = NULL;
291 }
292
293 if (name != NULL && strlen(name) >= MAXLOGNAME)
294 errx(EX_USAGE, "name too long: %s", name);
295
296 /*
297 * Must be root to attempt an update
298 */
299 if (geteuid() != 0 && mode != M_PRINT && mode != M_NEXT && !conf.dryrun)
300 errx(EX_NOPERM, "you must be root to run this program");
301
302 /*
303 * We should immediately look for the -q 'quiet' switch so that we
304 * don't bother with extraneous errors
305 */
306 if (getarg(&arglist, 'q') != NULL)
307 freopen(_PATH_DEVNULL, "w", stderr);
308
309 /*
310 * Set our base working path if not overridden
311 */
312
313 if (config == NULL) { /* Only override config location if -C not specified */
314 asprintf(&config, "%s/pw.conf", conf.etcpath);
315 if (config == NULL)
316 errx(EX_OSERR, "out of memory");
317 }
318
319 /*
320 * Now, let's do the common initialisation
321 */
322 conf.userconf = read_userconfig(config);
323
324 ch = funcs[which] (mode, name, id, &arglist);
325
326 /*
327 * If everything went ok, and we've been asked to update
328 * the NIS maps, then do it now
329 */
330 if (ch == EXIT_SUCCESS && nis) {
331 pid_t pid;
332
333 fflush(NULL);
334 if (chdir(_PATH_YP) == -1)
335 warn("chdir(" _PATH_YP ")");
336 else if ((pid = fork()) == -1)
337 warn("fork()");
338 else if (pid == 0) {
339 /* Is make anywhere else? */
340 execlp("/usr/bin/make", "make", (char *)NULL);
341 _exit(1);
342 } else {
343 int i;
344 waitpid(pid, &i, 0);
345 if ((i = WEXITSTATUS(i)) != 0)
346 errx(ch, "make exited with status %d", i);
347 else
348 pw_log(conf.userconf, mode, which, "NIS maps updated");
349 }
350 }
351 return ch;
352 }
353
354
355 static int
356 getindex(const char *words[], const char *word)
357 {
358 int i = 0;
359
360 while (words[i]) {
361 if (strcmp(words[i], word) == 0)
362 return i;
363 i++;
364 }
365 return -1;
366 }
367
368
369 /*
370 * This is probably an overkill for a cmdline help system, but it reflects
371 * the complexity of the command line.
372 */
373
374 static void
375 cmdhelp(int mode, int which)
376 {
377 if (which == -1)
378 fprintf(stderr, "usage:\n pw [user|group|lock|unlock] [add|del|mod|show|next] [help|switches/values]\n");
379 else if (mode == -1)
380 fprintf(stderr, "usage:\n pw %s [add|del|mod|show|next] [help|switches/values]\n", Which[which]);
381 else {
382
383 /*
384 * We need to give mode specific help
385 */
386 static const char *help[W_NUM][M_NUM] =
387 {
388 {
389 "usage: pw useradd [name] [switches]\n"
390 "\t-V etcdir alternate /etc location\n"
391 "\t-R rootir alternate root directory\n"
392 "\t-C config configuration file\n"
393 "\t-q quiet operation\n"
394 " Adding users:\n"
395 "\t-n name login name\n"
396 "\t-u uid user id\n"
397 "\t-c comment user name/comment\n"
398 "\t-d directory home directory\n"
399 "\t-e date account expiry date\n"
400 "\t-p date password expiry date\n"
401 "\t-g grp initial group\n"
402 "\t-G grp1,grp2 additional groups\n"
403 "\t-m [ -k dir ] create and set up home\n"
404 "\t-M mode home directory permissions\n"
405 "\t-s shell name of login shell\n"
406 "\t-o duplicate uid ok\n"
407 "\t-L class user class\n"
408 "\t-h fd read password on fd\n"
409 "\t-H fd read encrypted password on fd\n"
410 "\t-Y update NIS maps\n"
411 "\t-N no update\n"
412 " Setting defaults:\n"
413 "\t-V etcdir alternate /etc location\n"
414 "\t-R rootir alternate root directory\n"
415 "\t-D set user defaults\n"
416 "\t-b dir default home root dir\n"
417 "\t-e period default expiry period\n"
418 "\t-p period default password change period\n"
419 "\t-g group default group\n"
420 "\t-G grp1,grp2 additional groups\n"
421 "\t-L class default user class\n"
422 "\t-k dir default home skeleton\n"
423 "\t-M mode home directory permissions\n"
424 "\t-u min,max set min,max uids\n"
425 "\t-i min,max set min,max gids\n"
426 "\t-w method set default password method\n"
427 "\t-s shell default shell\n"
428 "\t-y path set NIS passwd file path\n",
429 "usage: pw userdel [uid|name] [switches]\n"
430 "\t-V etcdir alternate /etc location\n"
431 "\t-R rootir alternate root directory\n"
432 "\t-n name login name\n"
433 "\t-u uid user id\n"
434 "\t-Y update NIS maps\n"
435 "\t-r remove home & contents\n",
436 "usage: pw usermod [uid|name] [switches]\n"
437 "\t-V etcdir alternate /etc location\n"
438 "\t-R rootir alternate root directory\n"
439 "\t-C config configuration file\n"
440 "\t-q quiet operation\n"
441 "\t-F force add if no user\n"
442 "\t-n name login name\n"
443 "\t-u uid user id\n"
444 "\t-c comment user name/comment\n"
445 "\t-d directory home directory\n"
446 "\t-e date account expiry date\n"
447 "\t-p date password expiry date\n"
448 "\t-g grp initial group\n"
449 "\t-G grp1,grp2 additional groups\n"
450 "\t-l name new login name\n"
451 "\t-L class user class\n"
452 "\t-m [ -k dir ] create and set up home\n"
453 "\t-M mode home directory permissions\n"
454 "\t-s shell name of login shell\n"
455 "\t-w method set new password using method\n"
456 "\t-h fd read password on fd\n"
457 "\t-H fd read encrypted password on fd\n"
458 "\t-Y update NIS maps\n"
459 "\t-N no update\n",
460 "usage: pw usershow [uid|name] [switches]\n"
461 "\t-V etcdir alternate /etc location\n"
462 "\t-R rootir alternate root directory\n"
463 "\t-n name login name\n"
464 "\t-u uid user id\n"
465 "\t-F force print\n"
466 "\t-P prettier format\n"
467 "\t-a print all users\n"
468 "\t-7 print in v7 format\n",
469 "usage: pw usernext [switches]\n"
470 "\t-V etcdir alternate /etc location\n"
471 "\t-R rootir alternate root directory\n"
472 "\t-C config configuration file\n"
473 "\t-q quiet operation\n",
474 "usage pw: lock [switches]\n"
475 "\t-V etcdir alternate /etc locations\n"
476 "\t-C config configuration file\n"
477 "\t-q quiet operation\n",
478 "usage pw: unlock [switches]\n"
479 "\t-V etcdir alternate /etc locations\n"
480 "\t-C config configuration file\n"
481 "\t-q quiet operation\n"
482 },
483 {
484 "usage: pw groupadd [group|gid] [switches]\n"
485 "\t-V etcdir alternate /etc location\n"
486 "\t-R rootir alternate root directory\n"
487 "\t-C config configuration file\n"
488 "\t-q quiet operation\n"
489 "\t-n group group name\n"
490 "\t-g gid group id\n"
491 "\t-M usr1,usr2 add users as group members\n"
492 "\t-o duplicate gid ok\n"
493 "\t-Y update NIS maps\n"
494 "\t-N no update\n",
495 "usage: pw groupdel [group|gid] [switches]\n"
496 "\t-V etcdir alternate /etc location\n"
497 "\t-R rootir alternate root directory\n"
498 "\t-n name group name\n"
499 "\t-g gid group id\n"
500 "\t-Y update NIS maps\n",
501 "usage: pw groupmod [group|gid] [switches]\n"
502 "\t-V etcdir alternate /etc location\n"
503 "\t-R rootir alternate root directory\n"
504 "\t-C config configuration file\n"
505 "\t-q quiet operation\n"
506 "\t-F force add if not exists\n"
507 "\t-n name group name\n"
508 "\t-g gid group id\n"
509 "\t-M usr1,usr2 replaces users as group members\n"
510 "\t-m usr1,usr2 add users as group members\n"
511 "\t-d usr1,usr2 delete users as group members\n"
512 "\t-l name new group name\n"
513 "\t-Y update NIS maps\n"
514 "\t-N no update\n",
515 "usage: pw groupshow [group|gid] [switches]\n"
516 "\t-V etcdir alternate /etc location\n"
517 "\t-R rootir alternate root directory\n"
518 "\t-n name group name\n"
519 "\t-g gid group id\n"
520 "\t-F force print\n"
521 "\t-P prettier format\n"
522 "\t-a print all accounting groups\n",
523 "usage: pw groupnext [switches]\n"
524 "\t-V etcdir alternate /etc location\n"
525 "\t-R rootir alternate root directory\n"
526 "\t-C config configuration file\n"
527 "\t-q quiet operation\n"
528 }
529 };
530
531 fprintf(stderr, "%s", help[which][mode]);
532 }
533 exit(EXIT_FAILURE);
534 }
535
536 struct carg *
537 getarg(struct cargs * _args, int ch)
538 {
539 struct carg *c = LIST_FIRST(_args);
540
541 while (c != NULL && c->ch != ch)
542 c = LIST_NEXT(c, list);
543 return c;
544 }
545
546 struct carg *
547 addarg(struct cargs * _args, int ch, char *argstr)
548 {
549 struct carg *ca = malloc(sizeof(struct carg));
550
551 if (ca == NULL)
552 errx(EX_OSERR, "out of memory");
553 ca->ch = ch;
554 ca->val = argstr;
555 LIST_INSERT_HEAD(_args, ca, list);
556 return ca;
557 }
A port of FreeBSDs pw for Darwin