1 | /* Copyright (c) 1998-2016 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ |
18 | |
19 | /* getent: get entries from administrative database. */ |
20 | |
21 | #include <aliases.h> |
22 | #include <argp.h> |
23 | #include <ctype.h> |
24 | #include <error.h> |
25 | #include <grp.h> |
26 | #include <gshadow.h> |
27 | #include <libintl.h> |
28 | #include <locale.h> |
29 | #include <mcheck.h> |
30 | #include <netdb.h> |
31 | #include <pwd.h> |
32 | #include <shadow.h> |
33 | #include <stdbool.h> |
34 | #include <stdio.h> |
35 | #include <stdlib.h> |
36 | #include <string.h> |
37 | #include <arpa/inet.h> |
38 | #include <arpa/nameser.h> |
39 | #include <netinet/ether.h> |
40 | #include <netinet/in.h> |
41 | #include <sys/socket.h> |
42 | |
43 | /* Get libc version number. */ |
44 | #include <version.h> |
45 | |
46 | #define PACKAGE _libc_intl_domainname |
47 | |
48 | /* Name and version of program. */ |
49 | static void print_version (FILE *stream, struct argp_state *state); |
50 | void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; |
51 | |
52 | /* Short description of parameters. */ |
53 | static const char args_doc[] = N_("database [key ...]" ); |
54 | |
55 | /* Supported options. */ |
56 | static const struct argp_option args_options[] = |
57 | { |
58 | { "service" , 's', N_("CONFIG" ), 0, N_("Service configuration to be used" ) }, |
59 | { "no-idn" , 'i', NULL, 0, N_("disable IDN encoding" ) }, |
60 | { NULL, 0, NULL, 0, NULL }, |
61 | }; |
62 | |
63 | /* Short description of program. */ |
64 | static const char doc[] = N_("Get entries from administrative database." ); |
65 | |
66 | /* Prototype for option handler. */ |
67 | static error_t parse_option (int key, char *arg, struct argp_state *state); |
68 | |
69 | /* Function to print some extra text in the help message. */ |
70 | static char *more_help (int key, const char *text, void *input); |
71 | |
72 | /* Data structure to communicate with argp functions. */ |
73 | static struct argp argp = |
74 | { |
75 | args_options, parse_option, args_doc, doc, NULL, more_help |
76 | }; |
77 | |
78 | /* Additional getaddrinfo flags for IDN encoding. */ |
79 | static int idn_flags = AI_IDN | AI_CANONIDN; |
80 | |
81 | /* Print the version information. */ |
82 | static void |
83 | print_version (FILE *stream, struct argp_state *state) |
84 | { |
85 | fprintf (stream, "getent %s%s\n" , PKGVERSION, VERSION); |
86 | fprintf (stream, gettext ("\ |
87 | Copyright (C) %s Free Software Foundation, Inc.\n\ |
88 | This is free software; see the source for copying conditions. There is NO\n\ |
89 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ |
90 | " ), "2016" ); |
91 | fprintf (stream, gettext ("Written by %s.\n" ), "Thorsten Kukuk" ); |
92 | } |
93 | |
94 | /* This is for aliases */ |
95 | static void |
96 | print_aliases (struct aliasent *alias) |
97 | { |
98 | unsigned int i = 0; |
99 | |
100 | printf ("%s: " , alias->alias_name); |
101 | for (i = strlen (alias->alias_name); i < 14; ++i) |
102 | fputs_unlocked (" " , stdout); |
103 | |
104 | for (i = 0; i < alias->alias_members_len; ++i) |
105 | printf ("%s%s" , |
106 | alias->alias_members [i], |
107 | i + 1 == alias->alias_members_len ? "\n" : ", " ); |
108 | } |
109 | |
110 | static int |
111 | aliases_keys (int number, char *key[]) |
112 | { |
113 | int result = 0; |
114 | int i; |
115 | struct aliasent *alias; |
116 | |
117 | if (number == 0) |
118 | { |
119 | setaliasent (); |
120 | while ((alias = getaliasent ()) != NULL) |
121 | print_aliases (alias); |
122 | endaliasent (); |
123 | return result; |
124 | } |
125 | |
126 | for (i = 0; i < number; ++i) |
127 | { |
128 | alias = getaliasbyname (key[i]); |
129 | |
130 | if (alias == NULL) |
131 | result = 2; |
132 | else |
133 | print_aliases (alias); |
134 | } |
135 | |
136 | return result; |
137 | } |
138 | |
139 | /* This is for ethers */ |
140 | static int |
141 | ethers_keys (int number, char *key[]) |
142 | { |
143 | int result = 0; |
144 | int i; |
145 | |
146 | if (number == 0) |
147 | { |
148 | fprintf (stderr, _("Enumeration not supported on %s\n" ), "ethers" ); |
149 | return 3; |
150 | } |
151 | |
152 | for (i = 0; i < number; ++i) |
153 | { |
154 | struct ether_addr *ethp, eth; |
155 | char buffer [1024], *p; |
156 | |
157 | ethp = ether_aton (key[i]); |
158 | if (ethp != NULL) |
159 | { |
160 | if (ether_ntohost (buffer, ethp)) |
161 | { |
162 | result = 2; |
163 | continue; |
164 | } |
165 | p = buffer; |
166 | } |
167 | else |
168 | { |
169 | if (ether_hostton (key[i], ð)) |
170 | { |
171 | result = 2; |
172 | continue; |
173 | } |
174 | p = key[i]; |
175 | ethp = ð |
176 | } |
177 | printf ("%s %s\n" , ether_ntoa (ethp), p); |
178 | } |
179 | |
180 | return result; |
181 | } |
182 | |
183 | /* This is for group */ |
184 | static void |
185 | print_group (struct group *grp) |
186 | { |
187 | if (putgrent (grp, stdout) != 0) |
188 | fprintf (stderr, "error writing group entry: %m\n" ); |
189 | } |
190 | |
191 | static int |
192 | group_keys (int number, char *key[]) |
193 | { |
194 | int result = 0; |
195 | int i; |
196 | struct group *grp; |
197 | |
198 | if (number == 0) |
199 | { |
200 | setgrent (); |
201 | while ((grp = getgrent ()) != NULL) |
202 | print_group (grp); |
203 | endgrent (); |
204 | return result; |
205 | } |
206 | |
207 | for (i = 0; i < number; ++i) |
208 | { |
209 | errno = 0; |
210 | char *ep; |
211 | gid_t arg_gid = strtoul(key[i], &ep, 10); |
212 | |
213 | if (errno != EINVAL && *key[i] != '\0' && *ep == '\0') |
214 | /* Valid numeric gid. */ |
215 | grp = getgrgid (arg_gid); |
216 | else |
217 | grp = getgrnam (key[i]); |
218 | |
219 | if (grp == NULL) |
220 | result = 2; |
221 | else |
222 | print_group (grp); |
223 | } |
224 | |
225 | return result; |
226 | } |
227 | |
228 | /* This is for gshadow */ |
229 | static void |
230 | print_gshadow (struct sgrp *sg) |
231 | { |
232 | if (putsgent (sg, stdout) != 0) |
233 | fprintf (stderr, "error writing gshadow entry: %m\n" ); |
234 | } |
235 | |
236 | static int |
237 | gshadow_keys (int number, char *key[]) |
238 | { |
239 | int result = 0; |
240 | int i; |
241 | |
242 | if (number == 0) |
243 | { |
244 | struct sgrp *sg; |
245 | |
246 | setsgent (); |
247 | while ((sg = getsgent ()) != NULL) |
248 | print_gshadow (sg); |
249 | endsgent (); |
250 | return result; |
251 | } |
252 | |
253 | for (i = 0; i < number; ++i) |
254 | { |
255 | struct sgrp *sg; |
256 | |
257 | sg = getsgnam (key[i]); |
258 | |
259 | if (sg == NULL) |
260 | result = 2; |
261 | else |
262 | print_gshadow (sg); |
263 | } |
264 | |
265 | return result; |
266 | } |
267 | |
268 | /* This is for hosts */ |
269 | static void |
270 | print_hosts (struct hostent *host) |
271 | { |
272 | unsigned int cnt; |
273 | |
274 | for (cnt = 0; host->h_addr_list[cnt] != NULL; ++cnt) |
275 | { |
276 | char buf[INET6_ADDRSTRLEN]; |
277 | const char *ip = inet_ntop (host->h_addrtype, host->h_addr_list[cnt], |
278 | buf, sizeof (buf)); |
279 | |
280 | printf ("%-15s %s" , ip, host->h_name); |
281 | |
282 | unsigned int i; |
283 | for (i = 0; host->h_aliases[i] != NULL; ++i) |
284 | { |
285 | putchar_unlocked (' '); |
286 | fputs_unlocked (host->h_aliases[i], stdout); |
287 | } |
288 | putchar_unlocked ('\n'); |
289 | } |
290 | } |
291 | |
292 | static int |
293 | hosts_keys (int number, char *key[]) |
294 | { |
295 | int result = 0; |
296 | int i; |
297 | struct hostent *host; |
298 | |
299 | if (number == 0) |
300 | { |
301 | sethostent (0); |
302 | while ((host = gethostent ()) != NULL) |
303 | print_hosts (host); |
304 | endhostent (); |
305 | return result; |
306 | } |
307 | |
308 | for (i = 0; i < number; ++i) |
309 | { |
310 | struct hostent *host = NULL; |
311 | char addr[IN6ADDRSZ]; |
312 | |
313 | if (inet_pton (AF_INET6, key[i], &addr) > 0) |
314 | host = gethostbyaddr (addr, IN6ADDRSZ, AF_INET6); |
315 | else if (inet_pton (AF_INET, key[i], &addr) > 0) |
316 | host = gethostbyaddr (addr, INADDRSZ, AF_INET); |
317 | else if ((host = gethostbyname2 (key[i], AF_INET6)) == NULL) |
318 | host = gethostbyname2 (key[i], AF_INET); |
319 | |
320 | if (host == NULL) |
321 | result = 2; |
322 | else |
323 | print_hosts (host); |
324 | } |
325 | |
326 | return result; |
327 | } |
328 | |
329 | /* This is for hosts, but using getaddrinfo */ |
330 | static int |
331 | ahosts_keys_int (int af, int xflags, int number, char *key[]) |
332 | { |
333 | int result = 0; |
334 | int i; |
335 | struct hostent *host; |
336 | |
337 | if (number == 0) |
338 | { |
339 | sethostent (0); |
340 | while ((host = gethostent ()) != NULL) |
341 | print_hosts (host); |
342 | endhostent (); |
343 | return result; |
344 | } |
345 | |
346 | struct addrinfo hint; |
347 | memset (&hint, '\0', sizeof (hint)); |
348 | hint.ai_flags = (AI_V4MAPPED | AI_ADDRCONFIG | AI_CANONNAME |
349 | | idn_flags | xflags); |
350 | hint.ai_family = af; |
351 | |
352 | for (i = 0; i < number; ++i) |
353 | { |
354 | struct addrinfo *res; |
355 | |
356 | if (getaddrinfo (key[i], NULL, &hint, &res) != 0) |
357 | result = 2; |
358 | else |
359 | { |
360 | struct addrinfo *runp = res; |
361 | |
362 | while (runp != NULL) |
363 | { |
364 | char sockbuf[20]; |
365 | const char *sockstr; |
366 | if (runp->ai_socktype == SOCK_STREAM) |
367 | sockstr = "STREAM" ; |
368 | else if (runp->ai_socktype == SOCK_DGRAM) |
369 | sockstr = "DGRAM" ; |
370 | else if (runp->ai_socktype == SOCK_RAW) |
371 | sockstr = "RAW" ; |
372 | #ifdef SOCK_SEQPACKET |
373 | else if (runp->ai_socktype == SOCK_SEQPACKET) |
374 | sockstr = "SEQPACKET" ; |
375 | #endif |
376 | #ifdef SOCK_RDM |
377 | else if (runp->ai_socktype == SOCK_RDM) |
378 | sockstr = "RDM" ; |
379 | #endif |
380 | #ifdef SOCK_DCCP |
381 | else if (runp->ai_socktype == SOCK_DCCP) |
382 | sockstr = "DCCP" ; |
383 | #endif |
384 | #ifdef SOCK_PACKET |
385 | else if (runp->ai_socktype == SOCK_PACKET) |
386 | sockstr = "PACKET" ; |
387 | #endif |
388 | else |
389 | { |
390 | snprintf (sockbuf, sizeof (sockbuf), "%d" , |
391 | runp->ai_socktype); |
392 | sockstr = sockbuf; |
393 | } |
394 | |
395 | char buf[INET6_ADDRSTRLEN]; |
396 | printf ("%-15s %-6s %s\n" , |
397 | inet_ntop (runp->ai_family, |
398 | runp->ai_family == AF_INET |
399 | ? (void *) &((struct sockaddr_in *) runp->ai_addr)->sin_addr |
400 | : (void *) &((struct sockaddr_in6 *) runp->ai_addr)->sin6_addr, |
401 | buf, sizeof (buf)), |
402 | sockstr, |
403 | runp->ai_canonname ?: "" ); |
404 | |
405 | runp = runp->ai_next; |
406 | } |
407 | |
408 | freeaddrinfo (res); |
409 | } |
410 | } |
411 | |
412 | return result; |
413 | } |
414 | |
415 | static int |
416 | ahosts_keys (int number, char *key[]) |
417 | { |
418 | return ahosts_keys_int (AF_UNSPEC, 0, number, key); |
419 | } |
420 | |
421 | static int |
422 | ahostsv4_keys (int number, char *key[]) |
423 | { |
424 | return ahosts_keys_int (AF_INET, 0, number, key); |
425 | } |
426 | |
427 | static int |
428 | ahostsv6_keys (int number, char *key[]) |
429 | { |
430 | return ahosts_keys_int (AF_INET6, AI_V4MAPPED, number, key); |
431 | } |
432 | |
433 | /* This is for netgroup */ |
434 | static int |
435 | netgroup_keys (int number, char *key[]) |
436 | { |
437 | int result = 0; |
438 | |
439 | if (number == 0) |
440 | { |
441 | fprintf (stderr, _("Enumeration not supported on %s\n" ), "netgroup" ); |
442 | return 3; |
443 | } |
444 | |
445 | if (number == 4) |
446 | { |
447 | char *host = strcmp (key[1], "*" ) == 0 ? NULL : key[1]; |
448 | char *user = strcmp (key[2], "*" ) == 0 ? NULL : key[2]; |
449 | char *domain = strcmp (key[3], "*" ) == 0 ? NULL : key[3]; |
450 | |
451 | printf ("%-21s (%s,%s,%s) = %d\n" , |
452 | key[0], host ?: "" , user ?: "" , domain ?: "" , |
453 | innetgr (key[0], host, user, domain)); |
454 | } |
455 | else if (number == 1) |
456 | { |
457 | if (!setnetgrent (key[0])) |
458 | result = 2; |
459 | else |
460 | { |
461 | char *p[3]; |
462 | |
463 | printf ("%-21s" , key[0]); |
464 | |
465 | while (getnetgrent (p, p + 1, p + 2)) |
466 | printf (" (%s,%s,%s)" , p[0] ?: " " , p[1] ?: "" , p[2] ?: "" ); |
467 | putchar_unlocked ('\n'); |
468 | } |
469 | } |
470 | |
471 | endnetgrent (); |
472 | |
473 | return result; |
474 | } |
475 | |
476 | /* This is for initgroups */ |
477 | static int |
478 | initgroups_keys (int number, char *key[]) |
479 | { |
480 | int ngrps = 100; |
481 | size_t grpslen = ngrps * sizeof (gid_t); |
482 | gid_t *grps = alloca (grpslen); |
483 | |
484 | if (number == 0) |
485 | { |
486 | fprintf (stderr, _("Enumeration not supported on %s\n" ), "initgroups" ); |
487 | return 3; |
488 | } |
489 | |
490 | for (int i = 0; i < number; ++i) |
491 | { |
492 | int no = ngrps; |
493 | int n; |
494 | while ((n = getgrouplist (key[i], -1, grps, &no)) == -1 |
495 | && no > ngrps) |
496 | { |
497 | grps = extend_alloca (grps, grpslen, no * sizeof (gid_t)); |
498 | ngrps = no; |
499 | } |
500 | |
501 | if (n == -1) |
502 | return 1; |
503 | |
504 | printf ("%-21s" , key[i]); |
505 | for (int j = 0; j < n; ++j) |
506 | if (grps[j] != -1) |
507 | printf (" %ld" , (long int) grps[j]); |
508 | putchar_unlocked ('\n'); |
509 | } |
510 | |
511 | return 0; |
512 | } |
513 | |
514 | /* This is for networks */ |
515 | static void |
516 | print_networks (struct netent *net) |
517 | { |
518 | unsigned int i; |
519 | struct in_addr ip; |
520 | ip.s_addr = htonl (net->n_net); |
521 | |
522 | printf ("%-21s %s" , net->n_name, inet_ntoa (ip)); |
523 | |
524 | i = 0; |
525 | while (net->n_aliases[i] != NULL) |
526 | { |
527 | putchar_unlocked (' '); |
528 | fputs_unlocked (net->n_aliases[i], stdout); |
529 | ++i; |
530 | } |
531 | putchar_unlocked ('\n'); |
532 | } |
533 | |
534 | static int |
535 | networks_keys (int number, char *key[]) |
536 | { |
537 | int result = 0; |
538 | int i; |
539 | struct netent *net; |
540 | |
541 | if (number == 0) |
542 | { |
543 | setnetent (0); |
544 | while ((net = getnetent ()) != NULL) |
545 | print_networks (net); |
546 | endnetent (); |
547 | return result; |
548 | } |
549 | |
550 | for (i = 0; i < number; ++i) |
551 | { |
552 | if (isdigit (key[i][0])) |
553 | net = getnetbyaddr (ntohl (inet_addr (key[i])), AF_UNSPEC); |
554 | else |
555 | net = getnetbyname (key[i]); |
556 | |
557 | if (net == NULL) |
558 | result = 2; |
559 | else |
560 | print_networks (net); |
561 | } |
562 | |
563 | return result; |
564 | } |
565 | |
566 | /* Now is all for passwd */ |
567 | static void |
568 | print_passwd (struct passwd *pwd) |
569 | { |
570 | if (putpwent (pwd, stdout) != 0) |
571 | fprintf (stderr, "error writing passwd entry: %m\n" ); |
572 | } |
573 | |
574 | static int |
575 | passwd_keys (int number, char *key[]) |
576 | { |
577 | int result = 0; |
578 | int i; |
579 | struct passwd *pwd; |
580 | |
581 | if (number == 0) |
582 | { |
583 | setpwent (); |
584 | while ((pwd = getpwent ()) != NULL) |
585 | print_passwd (pwd); |
586 | endpwent (); |
587 | return result; |
588 | } |
589 | |
590 | for (i = 0; i < number; ++i) |
591 | { |
592 | errno = 0; |
593 | char *ep; |
594 | uid_t arg_uid = strtoul(key[i], &ep, 10); |
595 | |
596 | if (errno != EINVAL && *key[i] != '\0' && *ep == '\0') |
597 | /* Valid numeric uid. */ |
598 | pwd = getpwuid (arg_uid); |
599 | else |
600 | pwd = getpwnam (key[i]); |
601 | |
602 | if (pwd == NULL) |
603 | result = 2; |
604 | else |
605 | print_passwd (pwd); |
606 | } |
607 | |
608 | return result; |
609 | } |
610 | |
611 | /* This is for protocols */ |
612 | static void |
613 | print_protocols (struct protoent *proto) |
614 | { |
615 | unsigned int i; |
616 | |
617 | printf ("%-21s %d" , proto->p_name, proto->p_proto); |
618 | |
619 | i = 0; |
620 | while (proto->p_aliases[i] != NULL) |
621 | { |
622 | putchar_unlocked (' '); |
623 | fputs_unlocked (proto->p_aliases[i], stdout); |
624 | ++i; |
625 | } |
626 | putchar_unlocked ('\n'); |
627 | } |
628 | |
629 | static int |
630 | protocols_keys (int number, char *key[]) |
631 | { |
632 | int result = 0; |
633 | int i; |
634 | struct protoent *proto; |
635 | |
636 | if (number == 0) |
637 | { |
638 | setprotoent (0); |
639 | while ((proto = getprotoent ()) != NULL) |
640 | print_protocols (proto); |
641 | endprotoent (); |
642 | return result; |
643 | } |
644 | |
645 | for (i = 0; i < number; ++i) |
646 | { |
647 | if (isdigit (key[i][0])) |
648 | proto = getprotobynumber (atol (key[i])); |
649 | else |
650 | proto = getprotobyname (key[i]); |
651 | |
652 | if (proto == NULL) |
653 | result = 2; |
654 | else |
655 | print_protocols (proto); |
656 | } |
657 | |
658 | return result; |
659 | } |
660 | |
661 | #if HAVE_SUNRPC |
662 | /* Now is all for rpc */ |
663 | static void |
664 | print_rpc (struct rpcent *rpc) |
665 | { |
666 | int i; |
667 | |
668 | printf ("%-15s %d%s" , |
669 | rpc->r_name, rpc->r_number, rpc->r_aliases[0] ? " " : "" ); |
670 | |
671 | for (i = 0; rpc->r_aliases[i]; ++i) |
672 | printf (" %s" , rpc->r_aliases[i]); |
673 | putchar_unlocked ('\n'); |
674 | } |
675 | |
676 | static int |
677 | rpc_keys (int number, char *key[]) |
678 | { |
679 | int result = 0; |
680 | int i; |
681 | struct rpcent *rpc; |
682 | |
683 | if (number == 0) |
684 | { |
685 | setrpcent (0); |
686 | while ((rpc = getrpcent ()) != NULL) |
687 | print_rpc (rpc); |
688 | endrpcent (); |
689 | return result; |
690 | } |
691 | |
692 | for (i = 0; i < number; ++i) |
693 | { |
694 | if (isdigit (key[i][0])) |
695 | rpc = getrpcbynumber (atol (key[i])); |
696 | else |
697 | rpc = getrpcbyname (key[i]); |
698 | |
699 | if (rpc == NULL) |
700 | result = 2; |
701 | else |
702 | print_rpc (rpc); |
703 | } |
704 | |
705 | return result; |
706 | } |
707 | #endif |
708 | |
709 | /* for services */ |
710 | static void |
711 | print_services (struct servent *serv) |
712 | { |
713 | unsigned int i; |
714 | |
715 | printf ("%-21s %d/%s" , serv->s_name, ntohs (serv->s_port), serv->s_proto); |
716 | |
717 | i = 0; |
718 | while (serv->s_aliases[i] != NULL) |
719 | { |
720 | putchar_unlocked (' '); |
721 | fputs_unlocked (serv->s_aliases[i], stdout); |
722 | ++i; |
723 | } |
724 | putchar_unlocked ('\n'); |
725 | } |
726 | |
727 | static int |
728 | services_keys (int number, char *key[]) |
729 | { |
730 | int result = 0; |
731 | int i; |
732 | struct servent *serv; |
733 | |
734 | if (!number) |
735 | { |
736 | setservent (0); |
737 | while ((serv = getservent ()) != NULL) |
738 | print_services (serv); |
739 | endservent (); |
740 | return result; |
741 | } |
742 | |
743 | for (i = 0; i < number; ++i) |
744 | { |
745 | struct servent *serv; |
746 | char *proto = strchr (key[i], '/'); |
747 | |
748 | if (proto != NULL) |
749 | *proto++ = '\0'; |
750 | |
751 | char *endptr; |
752 | long port = strtol (key[i], &endptr, 10); |
753 | |
754 | if (isdigit (key[i][0]) && *endptr == '\0' |
755 | && 0 <= port && port <= 65535) |
756 | serv = getservbyport (htons (port), proto); |
757 | else |
758 | serv = getservbyname (key[i], proto); |
759 | |
760 | if (serv == NULL) |
761 | result = 2; |
762 | else |
763 | print_services (serv); |
764 | } |
765 | |
766 | return result; |
767 | } |
768 | |
769 | /* This is for shadow */ |
770 | static void |
771 | print_shadow (struct spwd *sp) |
772 | { |
773 | if (putspent (sp, stdout) != 0) |
774 | fprintf (stderr, "error writing shadow entry: %m\n" ); |
775 | } |
776 | |
777 | static int |
778 | shadow_keys (int number, char *key[]) |
779 | { |
780 | int result = 0; |
781 | int i; |
782 | |
783 | if (number == 0) |
784 | { |
785 | struct spwd *sp; |
786 | |
787 | setspent (); |
788 | while ((sp = getspent ()) != NULL) |
789 | print_shadow (sp); |
790 | endspent (); |
791 | return result; |
792 | } |
793 | |
794 | for (i = 0; i < number; ++i) |
795 | { |
796 | struct spwd *sp; |
797 | |
798 | sp = getspnam (key[i]); |
799 | |
800 | if (sp == NULL) |
801 | result = 2; |
802 | else |
803 | print_shadow (sp); |
804 | } |
805 | |
806 | return result; |
807 | } |
808 | |
809 | struct |
810 | { |
811 | const char *name; |
812 | int (*func) (int number, char *key[]); |
813 | } databases[] = |
814 | { |
815 | #define D(name) { #name, name ## _keys }, |
816 | D(ahosts) |
817 | D(ahostsv4) |
818 | D(ahostsv6) |
819 | D(aliases) |
820 | D(ethers) |
821 | D(group) |
822 | D(gshadow) |
823 | D(hosts) |
824 | D(initgroups) |
825 | D(netgroup) |
826 | D(networks) |
827 | D(passwd) |
828 | D(protocols) |
829 | #if HAVE_SUNRPC |
830 | D(rpc) |
831 | #endif |
832 | D(services) |
833 | D(shadow) |
834 | #undef D |
835 | { NULL, NULL } |
836 | }; |
837 | |
838 | /* Handle arguments found by argp. */ |
839 | static error_t |
840 | parse_option (int key, char *arg, struct argp_state *state) |
841 | { |
842 | char *endp; |
843 | switch (key) |
844 | { |
845 | case 's': |
846 | endp = strchr (arg, ':'); |
847 | if (endp == NULL) |
848 | /* No specific database, change them all. */ |
849 | for (int i = 0; databases[i].name != NULL; ++i) |
850 | __nss_configure_lookup (databases[i].name, arg); |
851 | else |
852 | { |
853 | int i; |
854 | for (i = 0; databases[i].name != NULL; ++i) |
855 | if (strncmp (databases[i].name, arg, endp - arg) == 0) |
856 | { |
857 | __nss_configure_lookup (databases[i].name, endp + 1); |
858 | break; |
859 | } |
860 | if (databases[i].name == NULL) |
861 | error (EXIT_FAILURE, 0, gettext ("Unknown database name" )); |
862 | } |
863 | break; |
864 | |
865 | case 'i': |
866 | idn_flags = 0; |
867 | break; |
868 | |
869 | default: |
870 | return ARGP_ERR_UNKNOWN; |
871 | } |
872 | |
873 | return 0; |
874 | } |
875 | |
876 | |
877 | static char * |
878 | more_help (int key, const char *text, void *input) |
879 | { |
880 | switch (key) |
881 | { |
882 | size_t len; |
883 | char *doc; |
884 | FILE *fp; |
885 | |
886 | case ARGP_KEY_HELP_EXTRA: |
887 | /* We print some extra information. */ |
888 | fp = open_memstream (&doc, &len); |
889 | if (fp != NULL) |
890 | { |
891 | fputs_unlocked (_("Supported databases:\n" ), fp); |
892 | |
893 | for (int i = 0, col = 0; databases[i].name != NULL; ++i) |
894 | { |
895 | len = strlen (databases[i].name); |
896 | if (i != 0) |
897 | { |
898 | if (col + len > 72) |
899 | { |
900 | col = 0; |
901 | fputc_unlocked ('\n', fp); |
902 | } |
903 | else |
904 | fputc_unlocked (' ', fp); |
905 | } |
906 | |
907 | fputs_unlocked (databases[i].name, fp); |
908 | col += len + 1; |
909 | } |
910 | |
911 | fputs ("\n\n" , fp); |
912 | |
913 | fprintf (fp, gettext ("\ |
914 | For bug reporting instructions, please see:\n\ |
915 | %s.\n" ), REPORT_BUGS_TO); |
916 | |
917 | if (fclose (fp) == 0) |
918 | return doc; |
919 | } |
920 | break; |
921 | |
922 | default: |
923 | break; |
924 | } |
925 | return (char *) text; |
926 | } |
927 | |
928 | |
929 | /* the main function */ |
930 | int |
931 | main (int argc, char *argv[]) |
932 | { |
933 | /* Debugging support. */ |
934 | mtrace (); |
935 | |
936 | /* Set locale via LC_ALL. */ |
937 | setlocale (LC_ALL, "" ); |
938 | /* Set the text message domain. */ |
939 | textdomain (PACKAGE); |
940 | |
941 | /* Parse and process arguments. */ |
942 | int remaining; |
943 | argp_parse (&argp, argc, argv, 0, &remaining, NULL); |
944 | |
945 | if ((argc - remaining) < 1) |
946 | { |
947 | error (0, 0, gettext ("wrong number of arguments" )); |
948 | argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name); |
949 | return 1; |
950 | } |
951 | |
952 | for (int i = 0; databases[i].name; ++i) |
953 | if (argv[remaining][0] == databases[i].name[0] |
954 | && !strcmp (argv[remaining], databases[i].name)) |
955 | return databases[i].func (argc - remaining - 1, &argv[remaining + 1]); |
956 | |
957 | fprintf (stderr, _("Unknown database: %s\n" ), argv[remaining]); |
958 | argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name); |
959 | return 1; |
960 | } |
961 | |