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6d7e8eda | 1 | /* Copyright (c) 1998-2023 Free Software Foundation, Inc. |
7d6a8338 | 2 | This file is part of the GNU C Library. |
7d6a8338 UD |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
7d6a8338 UD |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
7d6a8338 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
7d6a8338 | 17 | |
232b4655 | 18 | /* getent: get entries from administrative database. */ |
7d6a8338 | 19 | |
232b4655 | 20 | #include <aliases.h> |
7d6a8338 | 21 | #include <argp.h> |
7d6a8338 UD |
22 | #include <ctype.h> |
23 | #include <error.h> | |
ff3cacc5 | 24 | #include <grp.h> |
c518f9a4 | 25 | #include <gshadow.h> |
7d6a8338 UD |
26 | #include <libintl.h> |
27 | #include <locale.h> | |
ff3cacc5 | 28 | #include <mcheck.h> |
7d6a8338 | 29 | #include <netdb.h> |
ff3cacc5 UD |
30 | #include <pwd.h> |
31 | #include <shadow.h> | |
a160f8d8 | 32 | #include <stdbool.h> |
7d6a8338 UD |
33 | #include <stdio.h> |
34 | #include <stdlib.h> | |
35 | #include <string.h> | |
7d6a8338 | 36 | #include <arpa/inet.h> |
ce75c139 | 37 | #include <arpa/nameser.h> |
ff3cacc5 UD |
38 | #include <netinet/ether.h> |
39 | #include <netinet/in.h> | |
40 | #include <sys/socket.h> | |
1599ed4e | 41 | #include <scratch_buffer.h> |
0c6d82e9 | 42 | #include <inttypes.h> |
7d6a8338 UD |
43 | |
44 | /* Get libc version number. */ | |
45 | #include <version.h> | |
46 | ||
47 | #define PACKAGE _libc_intl_domainname | |
48 | ||
49 | /* Name and version of program. */ | |
50 | static void print_version (FILE *stream, struct argp_state *state); | |
51 | void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version; | |
52 | ||
53 | /* Short description of parameters. */ | |
54 | static const char args_doc[] = N_("database [key ...]"); | |
55 | ||
9d0881aa UD |
56 | /* Supported options. */ |
57 | static const struct argp_option args_options[] = | |
58 | { | |
0e2b9cdd | 59 | { "service", 's', N_("CONFIG"), 0, N_("Service configuration to be used") }, |
a160f8d8 | 60 | { "no-idn", 'i', NULL, 0, N_("disable IDN encoding") }, |
a623f13a FW |
61 | { "no-addrconfig", 'A', NULL, 0, |
62 | N_("do not filter out unsupported IPv4/IPv6 addresses (with ahosts*)") }, | |
9d0881aa UD |
63 | { NULL, 0, NULL, 0, NULL }, |
64 | }; | |
65 | ||
f69425fa | 66 | /* Short description of program. */ |
cbbcaf23 | 67 | static const char doc[] = N_("Get entries from administrative database."); |
f69425fa | 68 | |
9d0881aa UD |
69 | /* Prototype for option handler. */ |
70 | static error_t parse_option (int key, char *arg, struct argp_state *state); | |
71 | ||
f69425fa UD |
72 | /* Function to print some extra text in the help message. */ |
73 | static char *more_help (int key, const char *text, void *input); | |
74 | ||
7d6a8338 | 75 | /* Data structure to communicate with argp functions. */ |
9d0881aa UD |
76 | static struct argp argp = |
77 | { | |
f69425fa | 78 | args_options, parse_option, args_doc, doc, NULL, more_help |
9d0881aa | 79 | }; |
7d6a8338 | 80 | |
a160f8d8 UD |
81 | /* Additional getaddrinfo flags for IDN encoding. */ |
82 | static int idn_flags = AI_IDN | AI_CANONIDN; | |
83 | ||
a623f13a FW |
84 | /* Set to 0 by --no-addrconfig. */ |
85 | static int addrconfig_flags = AI_ADDRCONFIG; | |
86 | ||
7d6a8338 UD |
87 | /* Print the version information. */ |
88 | static void | |
89 | print_version (FILE *stream, struct argp_state *state) | |
90 | { | |
8b748aed | 91 | fprintf (stream, "getent %s%s\n", PKGVERSION, VERSION); |
7d6a8338 UD |
92 | fprintf (stream, gettext ("\ |
93 | Copyright (C) %s Free Software Foundation, Inc.\n\ | |
94 | This is free software; see the source for copying conditions. There is NO\n\ | |
95 | warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ | |
ae612c45 | 96 | "), "2023"); |
7d6a8338 UD |
97 | fprintf (stream, gettext ("Written by %s.\n"), "Thorsten Kukuk"); |
98 | } | |
99 | ||
232b4655 | 100 | /* This is for aliases */ |
f1d70dad | 101 | static void |
232b4655 UD |
102 | print_aliases (struct aliasent *alias) |
103 | { | |
104 | unsigned int i = 0; | |
105 | ||
106 | printf ("%s: ", alias->alias_name); | |
107 | for (i = strlen (alias->alias_name); i < 14; ++i) | |
9d0881aa | 108 | fputs_unlocked (" ", stdout); |
232b4655 | 109 | |
9d0881aa | 110 | for (i = 0; i < alias->alias_members_len; ++i) |
232b4655 UD |
111 | printf ("%s%s", |
112 | alias->alias_members [i], | |
113 | i + 1 == alias->alias_members_len ? "\n" : ", "); | |
114 | } | |
115 | ||
116 | static int | |
117 | aliases_keys (int number, char *key[]) | |
118 | { | |
119 | int result = 0; | |
120 | int i; | |
121 | struct aliasent *alias; | |
122 | ||
9d0881aa | 123 | if (number == 0) |
232b4655 UD |
124 | { |
125 | setaliasent (); | |
9d0881aa | 126 | while ((alias = getaliasent ()) != NULL) |
232b4655 UD |
127 | print_aliases (alias); |
128 | endaliasent (); | |
129 | return result; | |
130 | } | |
131 | ||
132 | for (i = 0; i < number; ++i) | |
133 | { | |
134 | alias = getaliasbyname (key[i]); | |
135 | ||
136 | if (alias == NULL) | |
137 | result = 2; | |
138 | else | |
139 | print_aliases (alias); | |
140 | } | |
141 | ||
142 | return result; | |
143 | } | |
144 | ||
145 | /* This is for ethers */ | |
146 | static int | |
147 | ethers_keys (int number, char *key[]) | |
148 | { | |
149 | int result = 0; | |
150 | int i; | |
151 | ||
9d0881aa | 152 | if (number == 0) |
232b4655 UD |
153 | { |
154 | fprintf (stderr, _("Enumeration not supported on %s\n"), "ethers"); | |
155 | return 3; | |
156 | } | |
157 | ||
158 | for (i = 0; i < number; ++i) | |
159 | { | |
160 | struct ether_addr *ethp, eth; | |
161 | char buffer [1024], *p; | |
162 | ||
163 | ethp = ether_aton (key[i]); | |
9d0881aa | 164 | if (ethp != NULL) |
232b4655 UD |
165 | { |
166 | if (ether_ntohost (buffer, ethp)) | |
167 | { | |
168 | result = 2; | |
169 | continue; | |
170 | } | |
171 | p = buffer; | |
172 | } | |
173 | else | |
174 | { | |
175 | if (ether_hostton (key[i], ð)) | |
176 | { | |
177 | result = 2; | |
178 | continue; | |
179 | } | |
180 | p = key[i]; | |
181 | ethp = ð | |
182 | } | |
183 | printf ("%s %s\n", ether_ntoa (ethp), p); | |
184 | } | |
185 | ||
186 | return result; | |
187 | } | |
188 | ||
7d6a8338 | 189 | /* This is for group */ |
f1d70dad | 190 | static void |
7d6a8338 UD |
191 | print_group (struct group *grp) |
192 | { | |
676599b3 FW |
193 | if (putgrent (grp, stdout) != 0) |
194 | fprintf (stderr, "error writing group entry: %m\n"); | |
7d6a8338 UD |
195 | } |
196 | ||
232b4655 | 197 | static int |
7d6a8338 UD |
198 | group_keys (int number, char *key[]) |
199 | { | |
200 | int result = 0; | |
201 | int i; | |
232b4655 | 202 | struct group *grp; |
7d6a8338 | 203 | |
9d0881aa | 204 | if (number == 0) |
7d6a8338 | 205 | { |
232b4655 | 206 | setgrent (); |
9d0881aa | 207 | while ((grp = getgrent ()) != NULL) |
232b4655 UD |
208 | print_group (grp); |
209 | endgrent (); | |
210 | return result; | |
211 | } | |
7d6a8338 | 212 | |
232b4655 UD |
213 | for (i = 0; i < number; ++i) |
214 | { | |
9030e7c4 UD |
215 | errno = 0; |
216 | char *ep; | |
217 | gid_t arg_gid = strtoul(key[i], &ep, 10); | |
8e9b2075 | 218 | |
9030e7c4 UD |
219 | if (errno != EINVAL && *key[i] != '\0' && *ep == '\0') |
220 | /* Valid numeric gid. */ | |
221 | grp = getgrgid (arg_gid); | |
7d6a8338 UD |
222 | else |
223 | grp = getgrnam (key[i]); | |
224 | ||
225 | if (grp == NULL) | |
226 | result = 2; | |
227 | else | |
228 | print_group (grp); | |
229 | } | |
230 | ||
231 | return result; | |
232 | } | |
233 | ||
c518f9a4 AJ |
234 | /* This is for gshadow */ |
235 | static void | |
236 | print_gshadow (struct sgrp *sg) | |
237 | { | |
676599b3 FW |
238 | if (putsgent (sg, stdout) != 0) |
239 | fprintf (stderr, "error writing gshadow entry: %m\n"); | |
c518f9a4 AJ |
240 | } |
241 | ||
242 | static int | |
243 | gshadow_keys (int number, char *key[]) | |
244 | { | |
245 | int result = 0; | |
246 | int i; | |
247 | ||
248 | if (number == 0) | |
249 | { | |
250 | struct sgrp *sg; | |
251 | ||
252 | setsgent (); | |
253 | while ((sg = getsgent ()) != NULL) | |
254 | print_gshadow (sg); | |
255 | endsgent (); | |
256 | return result; | |
257 | } | |
258 | ||
259 | for (i = 0; i < number; ++i) | |
260 | { | |
261 | struct sgrp *sg; | |
262 | ||
263 | sg = getsgnam (key[i]); | |
264 | ||
265 | if (sg == NULL) | |
266 | result = 2; | |
267 | else | |
268 | print_gshadow (sg); | |
269 | } | |
270 | ||
271 | return result; | |
272 | } | |
273 | ||
232b4655 | 274 | /* This is for hosts */ |
25337753 | 275 | static void |
232b4655 UD |
276 | print_hosts (struct hostent *host) |
277 | { | |
fdcd8f9c | 278 | unsigned int cnt; |
232b4655 | 279 | |
fdcd8f9c | 280 | for (cnt = 0; host->h_addr_list[cnt] != NULL; ++cnt) |
232b4655 | 281 | { |
fdcd8f9c UD |
282 | char buf[INET6_ADDRSTRLEN]; |
283 | const char *ip = inet_ntop (host->h_addrtype, host->h_addr_list[cnt], | |
284 | buf, sizeof (buf)); | |
285 | ||
286 | printf ("%-15s %s", ip, host->h_name); | |
287 | ||
288 | unsigned int i; | |
289 | for (i = 0; host->h_aliases[i] != NULL; ++i) | |
290 | { | |
291 | putchar_unlocked (' '); | |
292 | fputs_unlocked (host->h_aliases[i], stdout); | |
293 | } | |
294 | putchar_unlocked ('\n'); | |
232b4655 | 295 | } |
232b4655 UD |
296 | } |
297 | ||
298 | static int | |
299 | hosts_keys (int number, char *key[]) | |
300 | { | |
301 | int result = 0; | |
302 | int i; | |
303 | struct hostent *host; | |
304 | ||
9d0881aa | 305 | if (number == 0) |
232b4655 UD |
306 | { |
307 | sethostent (0); | |
9d0881aa | 308 | while ((host = gethostent ()) != NULL) |
232b4655 UD |
309 | print_hosts (host); |
310 | endhostent (); | |
311 | return result; | |
312 | } | |
313 | ||
314 | for (i = 0; i < number; ++i) | |
315 | { | |
316 | struct hostent *host = NULL; | |
653aeda5 | 317 | char addr[IN6ADDRSZ]; |
232b4655 | 318 | |
653aeda5 | 319 | if (inet_pton (AF_INET6, key[i], &addr) > 0) |
4f3d6536 | 320 | host = gethostbyaddr (addr, IN6ADDRSZ, AF_INET6); |
653aeda5 | 321 | else if (inet_pton (AF_INET, key[i], &addr) > 0) |
4f3d6536 | 322 | host = gethostbyaddr (addr, INADDRSZ, AF_INET); |
232b4655 UD |
323 | else if ((host = gethostbyname2 (key[i], AF_INET6)) == NULL) |
324 | host = gethostbyname2 (key[i], AF_INET); | |
325 | ||
326 | if (host == NULL) | |
327 | result = 2; | |
328 | else | |
329 | print_hosts (host); | |
330 | } | |
331 | ||
332 | return result; | |
333 | } | |
334 | ||
29bfc945 UD |
335 | /* This is for hosts, but using getaddrinfo */ |
336 | static int | |
a7d24833 | 337 | ahosts_keys_int (int af, int xflags, int number, char *key[]) |
29bfc945 UD |
338 | { |
339 | int result = 0; | |
340 | int i; | |
341 | struct hostent *host; | |
342 | ||
343 | if (number == 0) | |
344 | { | |
345 | sethostent (0); | |
346 | while ((host = gethostent ()) != NULL) | |
347 | print_hosts (host); | |
348 | endhostent (); | |
349 | return result; | |
350 | } | |
351 | ||
352 | struct addrinfo hint; | |
353 | memset (&hint, '\0', sizeof (hint)); | |
a623f13a | 354 | hint.ai_flags = (AI_V4MAPPED | addrconfig_flags | AI_CANONNAME |
a160f8d8 | 355 | | idn_flags | xflags); |
a7d24833 | 356 | hint.ai_family = af; |
29bfc945 UD |
357 | |
358 | for (i = 0; i < number; ++i) | |
359 | { | |
360 | struct addrinfo *res; | |
361 | ||
362 | if (getaddrinfo (key[i], NULL, &hint, &res) != 0) | |
363 | result = 2; | |
364 | else | |
365 | { | |
366 | struct addrinfo *runp = res; | |
367 | ||
368 | while (runp != NULL) | |
369 | { | |
370 | char sockbuf[20]; | |
371 | const char *sockstr; | |
372 | if (runp->ai_socktype == SOCK_STREAM) | |
373 | sockstr = "STREAM"; | |
374 | else if (runp->ai_socktype == SOCK_DGRAM) | |
375 | sockstr = "DGRAM"; | |
376 | else if (runp->ai_socktype == SOCK_RAW) | |
377 | sockstr = "RAW"; | |
372bfcac UD |
378 | #ifdef SOCK_SEQPACKET |
379 | else if (runp->ai_socktype == SOCK_SEQPACKET) | |
380 | sockstr = "SEQPACKET"; | |
381 | #endif | |
382 | #ifdef SOCK_RDM | |
383 | else if (runp->ai_socktype == SOCK_RDM) | |
384 | sockstr = "RDM"; | |
385 | #endif | |
386 | #ifdef SOCK_DCCP | |
387 | else if (runp->ai_socktype == SOCK_DCCP) | |
388 | sockstr = "DCCP"; | |
389 | #endif | |
390 | #ifdef SOCK_PACKET | |
391 | else if (runp->ai_socktype == SOCK_PACKET) | |
392 | sockstr = "PACKET"; | |
393 | #endif | |
29bfc945 UD |
394 | else |
395 | { | |
396 | snprintf (sockbuf, sizeof (sockbuf), "%d", | |
397 | runp->ai_socktype); | |
398 | sockstr = sockbuf; | |
399 | } | |
400 | ||
0c6d82e9 FW |
401 | /* Three digits per byte, plus '%' and null terminator. */ |
402 | char scope[3 * sizeof (uint32_t) + 2]; | |
403 | struct sockaddr_in6 *addr6 | |
404 | = (struct sockaddr_in6 *) runp->ai_addr; | |
405 | if (runp->ai_family != AF_INET6 || addr6->sin6_scope_id == 0) | |
406 | /* No scope ID present. */ | |
407 | scope[0] = '\0'; | |
408 | else | |
409 | snprintf (scope, sizeof (scope), "%%%" PRIu32, | |
410 | addr6->sin6_scope_id); | |
411 | ||
29bfc945 | 412 | char buf[INET6_ADDRSTRLEN]; |
0c6d82e9 FW |
413 | if (inet_ntop (runp->ai_family, |
414 | runp->ai_family == AF_INET | |
415 | ? (void *) &((struct sockaddr_in *) runp->ai_addr)->sin_addr | |
416 | : &addr6->sin6_addr, | |
417 | buf, sizeof (buf)) == NULL) | |
418 | { | |
419 | strcpy (buf, "<invalid>"); | |
420 | scope[0] = '\0'; | |
421 | } | |
422 | ||
423 | int pad = 15 - strlen (buf) - strlen (scope); | |
424 | if (pad < 0) | |
425 | pad = 0; | |
426 | ||
427 | printf ("%s%-*s %-6s %s\n", | |
428 | buf, pad, scope, sockstr, runp->ai_canonname ?: ""); | |
29bfc945 UD |
429 | |
430 | runp = runp->ai_next; | |
431 | } | |
432 | ||
433 | freeaddrinfo (res); | |
434 | } | |
435 | } | |
436 | ||
437 | return result; | |
438 | } | |
439 | ||
a7d24833 UD |
440 | static int |
441 | ahosts_keys (int number, char *key[]) | |
442 | { | |
443 | return ahosts_keys_int (AF_UNSPEC, 0, number, key); | |
444 | } | |
445 | ||
446 | static int | |
447 | ahostsv4_keys (int number, char *key[]) | |
448 | { | |
449 | return ahosts_keys_int (AF_INET, 0, number, key); | |
450 | } | |
451 | ||
452 | static int | |
453 | ahostsv6_keys (int number, char *key[]) | |
454 | { | |
455 | return ahosts_keys_int (AF_INET6, AI_V4MAPPED, number, key); | |
456 | } | |
457 | ||
232b4655 UD |
458 | /* This is for netgroup */ |
459 | static int | |
460 | netgroup_keys (int number, char *key[]) | |
461 | { | |
462 | int result = 0; | |
232b4655 | 463 | |
9d0881aa | 464 | if (number == 0) |
232b4655 UD |
465 | { |
466 | fprintf (stderr, _("Enumeration not supported on %s\n"), "netgroup"); | |
467 | return 3; | |
468 | } | |
469 | ||
684ae515 UD |
470 | if (number == 4) |
471 | { | |
472 | char *host = strcmp (key[1], "*") == 0 ? NULL : key[1]; | |
473 | char *user = strcmp (key[2], "*") == 0 ? NULL : key[2]; | |
474 | char *domain = strcmp (key[3], "*") == 0 ? NULL : key[3]; | |
475 | ||
476 | printf ("%-21s (%s,%s,%s) = %d\n", | |
477 | key[0], host ?: "", user ?: "", domain ?: "", | |
478 | innetgr (key[0], host, user, domain)); | |
479 | } | |
480 | else if (number == 1) | |
232b4655 | 481 | { |
684ae515 | 482 | if (!setnetgrent (key[0])) |
232b4655 UD |
483 | result = 2; |
484 | else | |
485 | { | |
486 | char *p[3]; | |
487 | ||
684ae515 | 488 | printf ("%-21s", key[0]); |
232b4655 UD |
489 | |
490 | while (getnetgrent (p, p + 1, p + 2)) | |
684ae515 | 491 | printf (" (%s,%s,%s)", p[0] ?: " ", p[1] ?: "", p[2] ?: ""); |
9d0881aa | 492 | putchar_unlocked ('\n'); |
232b4655 UD |
493 | } |
494 | } | |
495 | ||
ff3cacc5 UD |
496 | endnetgrent (); |
497 | ||
232b4655 UD |
498 | return result; |
499 | } | |
500 | ||
1599ed4e FW |
501 | #define DYNARRAY_STRUCT gid_list |
502 | #define DYNARRAY_ELEMENT gid_t | |
503 | #define DYNARRAY_PREFIX gid_list_ | |
504 | #define DYNARRAY_INITIAL_SIZE 10 | |
505 | #include <malloc/dynarray-skeleton.c> | |
506 | ||
82e9a1f7 UD |
507 | /* This is for initgroups */ |
508 | static int | |
509 | initgroups_keys (int number, char *key[]) | |
510 | { | |
f4ec4833 UD |
511 | if (number == 0) |
512 | { | |
513 | fprintf (stderr, _("Enumeration not supported on %s\n"), "initgroups"); | |
514 | return 3; | |
515 | } | |
516 | ||
1599ed4e FW |
517 | struct gid_list list; |
518 | gid_list_init (&list); | |
519 | if (!gid_list_resize (&list, 10)) | |
520 | { | |
521 | fprintf (stderr, _("Could not allocate group list: %m\n")); | |
522 | return 3; | |
523 | } | |
524 | ||
82e9a1f7 UD |
525 | for (int i = 0; i < number; ++i) |
526 | { | |
1599ed4e | 527 | int no = gid_list_size (&list); |
82e9a1f7 | 528 | int n; |
1599ed4e FW |
529 | while ((n = getgrouplist (key[i], -1, gid_list_begin (&list), &no)) == -1 |
530 | && no > gid_list_size (&list)) | |
82e9a1f7 | 531 | { |
1599ed4e FW |
532 | if (!gid_list_resize (&list, no)) |
533 | { | |
534 | fprintf (stderr, _("Could not allocate group list: %m\n")); | |
535 | return 3; | |
536 | } | |
82e9a1f7 UD |
537 | } |
538 | ||
539 | if (n == -1) | |
1599ed4e FW |
540 | { |
541 | gid_list_free (&list); | |
542 | return 1; | |
543 | } | |
82e9a1f7 | 544 | |
1599ed4e | 545 | const gid_t *grps = gid_list_begin (&list); |
82e9a1f7 UD |
546 | printf ("%-21s", key[i]); |
547 | for (int j = 0; j < n; ++j) | |
548 | if (grps[j] != -1) | |
549 | printf (" %ld", (long int) grps[j]); | |
550 | putchar_unlocked ('\n'); | |
551 | } | |
552 | ||
1599ed4e FW |
553 | gid_list_free (&list); |
554 | ||
82e9a1f7 UD |
555 | return 0; |
556 | } | |
557 | ||
7d6a8338 | 558 | /* This is for networks */ |
25337753 | 559 | static void |
7d6a8338 UD |
560 | print_networks (struct netent *net) |
561 | { | |
562 | unsigned int i; | |
563 | struct in_addr ip; | |
564 | ip.s_addr = htonl (net->n_net); | |
565 | ||
9d0881aa | 566 | printf ("%-21s %s", net->n_name, inet_ntoa (ip)); |
7d6a8338 UD |
567 | |
568 | i = 0; | |
569 | while (net->n_aliases[i] != NULL) | |
570 | { | |
9d0881aa UD |
571 | putchar_unlocked (' '); |
572 | fputs_unlocked (net->n_aliases[i], stdout); | |
7d6a8338 | 573 | ++i; |
7d6a8338 | 574 | } |
9d0881aa | 575 | putchar_unlocked ('\n'); |
7d6a8338 UD |
576 | } |
577 | ||
232b4655 | 578 | static int |
7d6a8338 UD |
579 | networks_keys (int number, char *key[]) |
580 | { | |
581 | int result = 0; | |
582 | int i; | |
232b4655 | 583 | struct netent *net; |
7d6a8338 | 584 | |
9d0881aa | 585 | if (number == 0) |
7d6a8338 | 586 | { |
232b4655 | 587 | setnetent (0); |
9d0881aa | 588 | while ((net = getnetent ()) != NULL) |
232b4655 UD |
589 | print_networks (net); |
590 | endnetent (); | |
591 | return result; | |
592 | } | |
7d6a8338 | 593 | |
232b4655 UD |
594 | for (i = 0; i < number; ++i) |
595 | { | |
7d6a8338 | 596 | if (isdigit (key[i][0])) |
5cd1f906 | 597 | net = getnetbyaddr (ntohl (inet_addr (key[i])), AF_UNSPEC); |
7d6a8338 UD |
598 | else |
599 | net = getnetbyname (key[i]); | |
600 | ||
601 | if (net == NULL) | |
602 | result = 2; | |
603 | else | |
604 | print_networks (net); | |
605 | } | |
606 | ||
607 | return result; | |
608 | } | |
609 | ||
610 | /* Now is all for passwd */ | |
f1d70dad | 611 | static void |
7d6a8338 UD |
612 | print_passwd (struct passwd *pwd) |
613 | { | |
676599b3 FW |
614 | if (putpwent (pwd, stdout) != 0) |
615 | fprintf (stderr, "error writing passwd entry: %m\n"); | |
7d6a8338 UD |
616 | } |
617 | ||
232b4655 | 618 | static int |
7d6a8338 UD |
619 | passwd_keys (int number, char *key[]) |
620 | { | |
621 | int result = 0; | |
622 | int i; | |
232b4655 | 623 | struct passwd *pwd; |
7d6a8338 | 624 | |
9d0881aa | 625 | if (number == 0) |
7d6a8338 | 626 | { |
232b4655 | 627 | setpwent (); |
9d0881aa | 628 | while ((pwd = getpwent ()) != NULL) |
232b4655 UD |
629 | print_passwd (pwd); |
630 | endpwent (); | |
631 | return result; | |
632 | } | |
7d6a8338 | 633 | |
232b4655 UD |
634 | for (i = 0; i < number; ++i) |
635 | { | |
9030e7c4 UD |
636 | errno = 0; |
637 | char *ep; | |
638 | uid_t arg_uid = strtoul(key[i], &ep, 10); | |
639 | ||
640 | if (errno != EINVAL && *key[i] != '\0' && *ep == '\0') | |
641 | /* Valid numeric uid. */ | |
642 | pwd = getpwuid (arg_uid); | |
7d6a8338 UD |
643 | else |
644 | pwd = getpwnam (key[i]); | |
645 | ||
646 | if (pwd == NULL) | |
647 | result = 2; | |
648 | else | |
649 | print_passwd (pwd); | |
650 | } | |
651 | ||
652 | return result; | |
653 | } | |
654 | ||
655 | /* This is for protocols */ | |
f1d70dad | 656 | static void |
7d6a8338 UD |
657 | print_protocols (struct protoent *proto) |
658 | { | |
659 | unsigned int i; | |
660 | ||
9d0881aa | 661 | printf ("%-21s %d", proto->p_name, proto->p_proto); |
7d6a8338 UD |
662 | |
663 | i = 0; | |
664 | while (proto->p_aliases[i] != NULL) | |
665 | { | |
9d0881aa UD |
666 | putchar_unlocked (' '); |
667 | fputs_unlocked (proto->p_aliases[i], stdout); | |
7d6a8338 UD |
668 | ++i; |
669 | } | |
9d0881aa | 670 | putchar_unlocked ('\n'); |
7d6a8338 UD |
671 | } |
672 | ||
232b4655 | 673 | static int |
7d6a8338 UD |
674 | protocols_keys (int number, char *key[]) |
675 | { | |
676 | int result = 0; | |
677 | int i; | |
232b4655 | 678 | struct protoent *proto; |
7d6a8338 | 679 | |
9d0881aa | 680 | if (number == 0) |
7d6a8338 | 681 | { |
232b4655 | 682 | setprotoent (0); |
9d0881aa | 683 | while ((proto = getprotoent ()) != NULL) |
232b4655 UD |
684 | print_protocols (proto); |
685 | endprotoent (); | |
686 | return result; | |
687 | } | |
7d6a8338 | 688 | |
232b4655 UD |
689 | for (i = 0; i < number; ++i) |
690 | { | |
7d6a8338 UD |
691 | if (isdigit (key[i][0])) |
692 | proto = getprotobynumber (atol (key[i])); | |
693 | else | |
694 | proto = getprotobyname (key[i]); | |
695 | ||
696 | if (proto == NULL) | |
697 | result = 2; | |
698 | else | |
699 | print_protocols (proto); | |
700 | } | |
701 | ||
702 | return result; | |
703 | } | |
704 | ||
a1309c2b | 705 | #if HAVE_SUNRPC |
232b4655 | 706 | /* Now is all for rpc */ |
f1d70dad | 707 | static void |
232b4655 | 708 | print_rpc (struct rpcent *rpc) |
7d6a8338 | 709 | { |
232b4655 | 710 | int i; |
7d6a8338 | 711 | |
9d0881aa UD |
712 | printf ("%-15s %d%s", |
713 | rpc->r_name, rpc->r_number, rpc->r_aliases[0] ? " " : ""); | |
7d6a8338 | 714 | |
232b4655 UD |
715 | for (i = 0; rpc->r_aliases[i]; ++i) |
716 | printf (" %s", rpc->r_aliases[i]); | |
9d0881aa | 717 | putchar_unlocked ('\n'); |
7d6a8338 UD |
718 | } |
719 | ||
232b4655 UD |
720 | static int |
721 | rpc_keys (int number, char *key[]) | |
7d6a8338 UD |
722 | { |
723 | int result = 0; | |
724 | int i; | |
232b4655 | 725 | struct rpcent *rpc; |
7d6a8338 | 726 | |
9d0881aa | 727 | if (number == 0) |
7d6a8338 | 728 | { |
232b4655 | 729 | setrpcent (0); |
9d0881aa | 730 | while ((rpc = getrpcent ()) != NULL) |
232b4655 UD |
731 | print_rpc (rpc); |
732 | endrpcent (); | |
733 | return result; | |
734 | } | |
7d6a8338 | 735 | |
232b4655 UD |
736 | for (i = 0; i < number; ++i) |
737 | { | |
738 | if (isdigit (key[i][0])) | |
739 | rpc = getrpcbynumber (atol (key[i])); | |
740 | else | |
741 | rpc = getrpcbyname (key[i]); | |
7d6a8338 | 742 | |
232b4655 | 743 | if (rpc == NULL) |
7d6a8338 UD |
744 | result = 2; |
745 | else | |
232b4655 | 746 | print_rpc (rpc); |
7d6a8338 UD |
747 | } |
748 | ||
749 | return result; | |
750 | } | |
a1309c2b | 751 | #endif |
7d6a8338 UD |
752 | |
753 | /* for services */ | |
232b4655 | 754 | static void |
7d6a8338 UD |
755 | print_services (struct servent *serv) |
756 | { | |
757 | unsigned int i; | |
758 | ||
9d0881aa | 759 | printf ("%-21s %d/%s", serv->s_name, ntohs (serv->s_port), serv->s_proto); |
7d6a8338 UD |
760 | |
761 | i = 0; | |
762 | while (serv->s_aliases[i] != NULL) | |
763 | { | |
9d0881aa UD |
764 | putchar_unlocked (' '); |
765 | fputs_unlocked (serv->s_aliases[i], stdout); | |
7d6a8338 UD |
766 | ++i; |
767 | } | |
9d0881aa | 768 | putchar_unlocked ('\n'); |
7d6a8338 UD |
769 | } |
770 | ||
232b4655 | 771 | static int |
7d6a8338 UD |
772 | services_keys (int number, char *key[]) |
773 | { | |
774 | int result = 0; | |
775 | int i; | |
232b4655 UD |
776 | struct servent *serv; |
777 | ||
778 | if (!number) | |
779 | { | |
780 | setservent (0); | |
9d0881aa | 781 | while ((serv = getservent ()) != NULL) |
232b4655 UD |
782 | print_services (serv); |
783 | endservent (); | |
784 | return result; | |
785 | } | |
7d6a8338 UD |
786 | |
787 | for (i = 0; i < number; ++i) | |
788 | { | |
789 | struct servent *serv; | |
790 | char *proto = strchr (key[i], '/'); | |
791 | ||
a70e964e UD |
792 | if (proto != NULL) |
793 | *proto++ = '\0'; | |
7d6a8338 | 794 | |
e4368156 OB |
795 | char *endptr; |
796 | long port = strtol (key[i], &endptr, 10); | |
797 | ||
798 | if (isdigit (key[i][0]) && *endptr == '\0' | |
799 | && 0 <= port && port <= 65535) | |
800 | serv = getservbyport (htons (port), proto); | |
a70e964e UD |
801 | else |
802 | serv = getservbyname (key[i], proto); | |
7d6a8338 | 803 | |
a70e964e UD |
804 | if (serv == NULL) |
805 | result = 2; | |
806 | else | |
807 | print_services (serv); | |
7d6a8338 UD |
808 | } |
809 | ||
810 | return result; | |
811 | } | |
812 | ||
232b4655 | 813 | /* This is for shadow */ |
25337753 | 814 | static void |
232b4655 | 815 | print_shadow (struct spwd *sp) |
7d6a8338 | 816 | { |
676599b3 FW |
817 | if (putspent (sp, stdout) != 0) |
818 | fprintf (stderr, "error writing shadow entry: %m\n"); | |
232b4655 | 819 | } |
7d6a8338 | 820 | |
232b4655 UD |
821 | static int |
822 | shadow_keys (int number, char *key[]) | |
823 | { | |
824 | int result = 0; | |
825 | int i; | |
7d6a8338 | 826 | |
9d0881aa | 827 | if (number == 0) |
7d6a8338 | 828 | { |
232b4655 UD |
829 | struct spwd *sp; |
830 | ||
831 | setspent (); | |
9d0881aa | 832 | while ((sp = getspent ()) != NULL) |
232b4655 | 833 | print_shadow (sp); |
d34c9158 | 834 | endspent (); |
232b4655 | 835 | return result; |
7d6a8338 UD |
836 | } |
837 | ||
232b4655 | 838 | for (i = 0; i < number; ++i) |
7d6a8338 | 839 | { |
232b4655 | 840 | struct spwd *sp; |
7d6a8338 | 841 | |
232b4655 | 842 | sp = getspnam (key[i]); |
7d6a8338 | 843 | |
232b4655 UD |
844 | if (sp == NULL) |
845 | result = 2; | |
7d6a8338 | 846 | else |
232b4655 UD |
847 | print_shadow (sp); |
848 | } | |
7d6a8338 | 849 | |
232b4655 UD |
850 | return result; |
851 | } | |
7d6a8338 | 852 | |
232b4655 UD |
853 | struct |
854 | { | |
855 | const char *name; | |
856 | int (*func) (int number, char *key[]); | |
857 | } databases[] = | |
858 | { | |
859 | #define D(name) { #name, name ## _keys }, | |
29bfc945 | 860 | D(ahosts) |
a7d24833 UD |
861 | D(ahostsv4) |
862 | D(ahostsv6) | |
232b4655 UD |
863 | D(aliases) |
864 | D(ethers) | |
865 | D(group) | |
c518f9a4 | 866 | D(gshadow) |
232b4655 | 867 | D(hosts) |
82e9a1f7 | 868 | D(initgroups) |
232b4655 UD |
869 | D(netgroup) |
870 | D(networks) | |
871 | D(passwd) | |
872 | D(protocols) | |
a1309c2b | 873 | #if HAVE_SUNRPC |
232b4655 | 874 | D(rpc) |
a1309c2b | 875 | #endif |
232b4655 UD |
876 | D(services) |
877 | D(shadow) | |
878 | #undef D | |
9d0881aa | 879 | { NULL, NULL } |
232b4655 UD |
880 | }; |
881 | ||
9d0881aa UD |
882 | /* Handle arguments found by argp. */ |
883 | static error_t | |
884 | parse_option (int key, char *arg, struct argp_state *state) | |
885 | { | |
b4f6f4be | 886 | char *endp; |
9d0881aa UD |
887 | switch (key) |
888 | { | |
889 | case 's': | |
b4f6f4be UD |
890 | endp = strchr (arg, ':'); |
891 | if (endp == NULL) | |
892 | /* No specific database, change them all. */ | |
893 | for (int i = 0; databases[i].name != NULL; ++i) | |
894 | __nss_configure_lookup (databases[i].name, arg); | |
895 | else | |
896 | { | |
897 | int i; | |
898 | for (i = 0; databases[i].name != NULL; ++i) | |
899 | if (strncmp (databases[i].name, arg, endp - arg) == 0) | |
900 | { | |
901 | __nss_configure_lookup (databases[i].name, endp + 1); | |
902 | break; | |
903 | } | |
904 | if (databases[i].name == NULL) | |
905 | error (EXIT_FAILURE, 0, gettext ("Unknown database name")); | |
906 | } | |
9d0881aa UD |
907 | break; |
908 | ||
a160f8d8 UD |
909 | case 'i': |
910 | idn_flags = 0; | |
911 | break; | |
912 | ||
a623f13a FW |
913 | case 'A': |
914 | addrconfig_flags = 0; | |
915 | break; | |
916 | ||
9d0881aa UD |
917 | default: |
918 | return ARGP_ERR_UNKNOWN; | |
919 | } | |
920 | ||
921 | return 0; | |
922 | } | |
923 | ||
232b4655 | 924 | |
f69425fa UD |
925 | static char * |
926 | more_help (int key, const char *text, void *input) | |
927 | { | |
f69425fa | 928 | switch (key) |
232b4655 | 929 | { |
b4f6f4be UD |
930 | size_t len; |
931 | char *doc; | |
932 | FILE *fp; | |
933 | ||
f69425fa UD |
934 | case ARGP_KEY_HELP_EXTRA: |
935 | /* We print some extra information. */ | |
b4f6f4be UD |
936 | fp = open_memstream (&doc, &len); |
937 | if (fp != NULL) | |
7d6a8338 | 938 | { |
b4f6f4be | 939 | fputs_unlocked (_("Supported databases:\n"), fp); |
f69425fa | 940 | |
b4f6f4be | 941 | for (int i = 0, col = 0; databases[i].name != NULL; ++i) |
7d6a8338 | 942 | { |
f69425fa UD |
943 | len = strlen (databases[i].name); |
944 | if (i != 0) | |
232b4655 | 945 | { |
f69425fa UD |
946 | if (col + len > 72) |
947 | { | |
948 | col = 0; | |
b4f6f4be | 949 | fputc_unlocked ('\n', fp); |
f69425fa UD |
950 | } |
951 | else | |
b4f6f4be | 952 | fputc_unlocked (' ', fp); |
232b4655 | 953 | } |
f69425fa | 954 | |
b4f6f4be | 955 | fputs_unlocked (databases[i].name, fp); |
f69425fa | 956 | col += len + 1; |
7d6a8338 | 957 | } |
232b4655 | 958 | |
cbbcaf23 UD |
959 | fputs ("\n\n", fp); |
960 | ||
8b748aed | 961 | fprintf (fp, gettext ("\ |
cbbcaf23 | 962 | For bug reporting instructions, please see:\n\ |
8b748aed | 963 | %s.\n"), REPORT_BUGS_TO); |
cbbcaf23 | 964 | |
b4f6f4be UD |
965 | if (fclose (fp) == 0) |
966 | return doc; | |
7d6a8338 | 967 | } |
f69425fa | 968 | break; |
232b4655 | 969 | |
f69425fa UD |
970 | default: |
971 | break; | |
972 | } | |
973 | return (char *) text; | |
232b4655 UD |
974 | } |
975 | ||
f69425fa | 976 | |
232b4655 UD |
977 | /* the main function */ |
978 | int | |
979 | main (int argc, char *argv[]) | |
980 | { | |
ff3cacc5 UD |
981 | /* Debugging support. */ |
982 | mtrace (); | |
232b4655 UD |
983 | |
984 | /* Set locale via LC_ALL. */ | |
985 | setlocale (LC_ALL, ""); | |
986 | /* Set the text message domain. */ | |
987 | textdomain (PACKAGE); | |
988 | ||
232b4655 | 989 | /* Parse and process arguments. */ |
ff3cacc5 | 990 | int remaining; |
232b4655 UD |
991 | argp_parse (&argp, argc, argv, 0, &remaining, NULL); |
992 | ||
993 | if ((argc - remaining) < 1) | |
994 | { | |
995 | error (0, 0, gettext ("wrong number of arguments")); | |
7d6a8338 UD |
996 | argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name); |
997 | return 1; | |
998 | } | |
999 | ||
ff3cacc5 | 1000 | for (int i = 0; databases[i].name; ++i) |
9d0881aa UD |
1001 | if (argv[remaining][0] == databases[i].name[0] |
1002 | && !strcmp (argv[remaining], databases[i].name)) | |
1003 | return databases[i].func (argc - remaining - 1, &argv[remaining + 1]); | |
232b4655 | 1004 | |
9d0881aa | 1005 | fprintf (stderr, _("Unknown database: %s\n"), argv[remaining]); |
232b4655 UD |
1006 | argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name); |
1007 | return 1; | |
7d6a8338 | 1008 | } |