1 /* Copyright (c) 1998-2003, 2004, 2005 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
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.
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.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
20 /* getent: get entries from administrative database. */
35 #include <sys/socket.h>
36 #include <netinet/in.h>
37 #include <netinet/ether.h>
38 #include <arpa/inet.h>
39 #include <arpa/nameser.h>
41 /* Get libc version number. */
44 #define PACKAGE _libc_intl_domainname
46 /* Name and version of program. */
47 static void print_version (FILE *stream, struct argp_state *state);
48 void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version;
50 /* Short description of parameters. */
51 static const char args_doc[] = N_("database [key ...]");
53 /* Supported options. */
54 static const struct argp_option args_options[] =
56 { "service", 's', "CONFIG", 0, N_("Service configuration to be used") },
57 { NULL, 0, NULL, 0, NULL },
60 /* Short description of program. */
61 static const char doc[] = N_("Get entries from administrative database.\v\
62 For bug reporting instructions, please see:\n\
63 <http://www.gnu.org/software/libc/bugs.html>.\n");
65 /* Prototype for option handler. */
66 static error_t parse_option (int key, char *arg, struct argp_state *state);
68 /* Function to print some extra text in the help message. */
69 static char *more_help (int key, const char *text, void *input);
71 /* Data structure to communicate with argp functions. */
72 static struct argp argp =
74 args_options, parse_option, args_doc, doc, NULL, more_help
77 /* Print the version information. */
79 print_version (FILE *stream, struct argp_state *state)
81 fprintf (stream, "getent (GNU %s) %s\n", PACKAGE, VERSION);
82 fprintf (stream, gettext ("\
83 Copyright (C) %s Free Software Foundation, Inc.\n\
84 This is free software; see the source for copying conditions. There is NO\n\
85 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
87 fprintf (stream, gettext ("Written by %s.\n"), "Thorsten Kukuk");
90 /* This is for aliases */
92 print_aliases (struct aliasent *alias)
96 printf ("%s: ", alias->alias_name);
97 for (i = strlen (alias->alias_name); i < 14; ++i)
98 fputs_unlocked (" ", stdout);
100 for (i = 0; i < alias->alias_members_len; ++i)
102 alias->alias_members [i],
103 i + 1 == alias->alias_members_len ? "\n" : ", ");
107 aliases_keys (int number, char *key[])
111 struct aliasent *alias;
116 while ((alias = getaliasent ()) != NULL)
117 print_aliases (alias);
122 for (i = 0; i < number; ++i)
124 alias = getaliasbyname (key[i]);
129 print_aliases (alias);
135 /* This is for ethers */
137 ethers_keys (int number, char *key[])
144 fprintf (stderr, _("Enumeration not supported on %s\n"), "ethers");
148 for (i = 0; i < number; ++i)
150 struct ether_addr *ethp, eth;
151 char buffer [1024], *p;
153 ethp = ether_aton (key[i]);
156 if (ether_ntohost (buffer, ethp))
165 if (ether_hostton (key[i], ð))
173 printf ("%s %s\n", ether_ntoa (ethp), p);
179 /* This is for group */
181 print_group (struct group *grp)
185 printf ("%s:%s:%lu:", grp->gr_name ? grp->gr_name : "",
186 grp->gr_passwd ? grp->gr_passwd : "",
187 (unsigned long int) grp->gr_gid);
189 while (grp->gr_mem[i] != NULL)
191 fputs_unlocked (grp->gr_mem[i], stdout);
193 if (grp->gr_mem[i] != NULL)
194 putchar_unlocked (',');
196 putchar_unlocked ('\n');
200 group_keys (int number, char *key[])
209 while ((grp = getgrent ()) != NULL)
215 for (i = 0; i < number; ++i)
219 gid_t arg_gid = strtoul(key[i], &ep, 10);
221 if (errno != EINVAL && *key[i] != '\0' && *ep == '\0')
222 /* Valid numeric gid. */
223 grp = getgrgid (arg_gid);
225 grp = getgrnam (key[i]);
236 /* This is for hosts */
238 print_hosts (struct hostent *host)
242 for (cnt = 0; host->h_addr_list[cnt] != NULL; ++cnt)
244 char buf[INET6_ADDRSTRLEN];
245 const char *ip = inet_ntop (host->h_addrtype, host->h_addr_list[cnt],
248 printf ("%-15s %s", ip, host->h_name);
251 for (i = 0; host->h_aliases[i] != NULL; ++i)
253 putchar_unlocked (' ');
254 fputs_unlocked (host->h_aliases[i], stdout);
256 putchar_unlocked ('\n');
261 hosts_keys (int number, char *key[])
265 struct hostent *host;
270 while ((host = gethostent ()) != NULL)
276 for (i = 0; i < number; ++i)
278 struct hostent *host = NULL;
279 char addr[IN6ADDRSZ];
281 if (inet_pton (AF_INET6, key[i], &addr) > 0)
282 host = gethostbyaddr (addr, sizeof (addr), AF_INET6);
283 else if (inet_pton (AF_INET, key[i], &addr) > 0)
284 host = gethostbyaddr (addr, sizeof (addr), AF_INET);
285 else if ((host = gethostbyname2 (key[i], AF_INET6)) == NULL)
286 host = gethostbyname2 (key[i], AF_INET);
297 /* This is for hosts, but using getaddrinfo */
299 ahosts_keys_int (int af, int xflags, int number, char *key[])
303 struct hostent *host;
308 while ((host = gethostent ()) != NULL)
314 struct addrinfo hint;
315 memset (&hint, '\0', sizeof (hint));
316 hint.ai_flags = AI_V4MAPPED | AI_ADDRCONFIG | AI_CANONNAME | xflags;
319 for (i = 0; i < number; ++i)
321 struct addrinfo *res;
323 if (getaddrinfo (key[i], NULL, &hint, &res) != 0)
327 struct addrinfo *runp = res;
333 if (runp->ai_socktype == SOCK_STREAM)
335 else if (runp->ai_socktype == SOCK_DGRAM)
337 else if (runp->ai_socktype == SOCK_RAW)
341 snprintf (sockbuf, sizeof (sockbuf), "%d",
346 char buf[INET6_ADDRSTRLEN];
347 printf ("%-15s %-6s %s\n",
348 inet_ntop (runp->ai_family,
349 runp->ai_family == AF_INET
350 ? (void *) &((struct sockaddr_in *) runp->ai_addr)->sin_addr
351 : (void *) &((struct sockaddr_in6 *) runp->ai_addr)->sin6_addr,
354 runp->ai_canonname ?: "");
356 runp = runp->ai_next;
367 ahosts_keys (int number, char *key[])
369 return ahosts_keys_int (AF_UNSPEC, 0, number, key);
373 ahostsv4_keys (int number, char *key[])
375 return ahosts_keys_int (AF_INET, 0, number, key);
379 ahostsv6_keys (int number, char *key[])
381 return ahosts_keys_int (AF_INET6, AI_V4MAPPED, number, key);
384 /* This is for netgroup */
386 netgroup_keys (int number, char *key[])
393 fprintf (stderr, _("Enumeration not supported on %s\n"), "netgroup");
397 for (i = 0; i < number; ++i)
399 if (!setnetgrent (key[i]))
405 printf ("%-21s", key[i]);
407 while (getnetgrent (p, p + 1, p + 2))
408 printf (" (%s, %s, %s)", p[0] ?: " ", p[1] ?: "", p[2] ?: "");
409 putchar_unlocked ('\n');
416 /* This is for networks */
418 print_networks (struct netent *net)
422 ip.s_addr = htonl (net->n_net);
424 printf ("%-21s %s", net->n_name, inet_ntoa (ip));
427 while (net->n_aliases[i] != NULL)
429 putchar_unlocked (' ');
430 fputs_unlocked (net->n_aliases[i], stdout);
432 if (net->n_aliases[i] != NULL)
433 putchar_unlocked (',');
435 putchar_unlocked ('\n');
439 networks_keys (int number, char *key[])
448 while ((net = getnetent ()) != NULL)
449 print_networks (net);
454 for (i = 0; i < number; ++i)
456 if (isdigit (key[i][0]))
457 net = getnetbyaddr (inet_addr (key[i]), AF_UNIX);
459 net = getnetbyname (key[i]);
464 print_networks (net);
470 /* Now is all for passwd */
472 print_passwd (struct passwd *pwd)
474 printf ("%s:%s:%lu:%lu:%s:%s:%s\n",
475 pwd->pw_name ? pwd->pw_name : "",
476 pwd->pw_passwd ? pwd->pw_passwd : "",
477 (unsigned long int) pwd->pw_uid,
478 (unsigned long int) pwd->pw_gid,
479 pwd->pw_gecos ? pwd->pw_gecos : "",
480 pwd->pw_dir ? pwd->pw_dir : "",
481 pwd->pw_shell ? pwd->pw_shell : "");
485 passwd_keys (int number, char *key[])
494 while ((pwd = getpwent ()) != NULL)
500 for (i = 0; i < number; ++i)
504 uid_t arg_uid = strtoul(key[i], &ep, 10);
506 if (errno != EINVAL && *key[i] != '\0' && *ep == '\0')
507 /* Valid numeric uid. */
508 pwd = getpwuid (arg_uid);
510 pwd = getpwnam (key[i]);
521 /* This is for protocols */
523 print_protocols (struct protoent *proto)
527 printf ("%-21s %d", proto->p_name, proto->p_proto);
530 while (proto->p_aliases[i] != NULL)
532 putchar_unlocked (' ');
533 fputs_unlocked (proto->p_aliases[i], stdout);
536 putchar_unlocked ('\n');
540 protocols_keys (int number, char *key[])
544 struct protoent *proto;
549 while ((proto = getprotoent ()) != NULL)
550 print_protocols (proto);
555 for (i = 0; i < number; ++i)
557 if (isdigit (key[i][0]))
558 proto = getprotobynumber (atol (key[i]));
560 proto = getprotobyname (key[i]);
565 print_protocols (proto);
571 /* Now is all for rpc */
573 print_rpc (struct rpcent *rpc)
577 printf ("%-15s %d%s",
578 rpc->r_name, rpc->r_number, rpc->r_aliases[0] ? " " : "");
580 for (i = 0; rpc->r_aliases[i]; ++i)
581 printf (" %s", rpc->r_aliases[i]);
582 putchar_unlocked ('\n');
586 rpc_keys (int number, char *key[])
595 while ((rpc = getrpcent ()) != NULL)
601 for (i = 0; i < number; ++i)
603 if (isdigit (key[i][0]))
604 rpc = getrpcbynumber (atol (key[i]));
606 rpc = getrpcbyname (key[i]);
619 print_services (struct servent *serv)
623 printf ("%-21s %d/%s", serv->s_name, ntohs (serv->s_port), serv->s_proto);
626 while (serv->s_aliases[i] != NULL)
628 putchar_unlocked (' ');
629 fputs_unlocked (serv->s_aliases[i], stdout);
632 putchar_unlocked ('\n');
636 services_keys (int number, char *key[])
640 struct servent *serv;
645 while ((serv = getservent ()) != NULL)
646 print_services (serv);
651 for (i = 0; i < number; ++i)
653 struct servent *serv;
654 char *proto = strchr (key[i], '/');
659 if (isdigit (key[i][0]))
660 serv = getservbyport (htons (atol (key[i])), proto);
662 serv = getservbyname (key[i], proto);
667 print_services (serv);
673 /* This is for shadow */
675 print_shadow (struct spwd *sp)
678 sp->sp_namp ? sp->sp_namp : "",
679 sp->sp_pwdp ? sp->sp_pwdp : "");
681 #define SHADOW_FIELD(n) \
683 putchar_unlocked (':'); \
685 printf ("%ld:", sp->n)
687 SHADOW_FIELD (sp_lstchg);
688 SHADOW_FIELD (sp_min);
689 SHADOW_FIELD (sp_max);
690 SHADOW_FIELD (sp_warn);
691 SHADOW_FIELD (sp_inact);
692 SHADOW_FIELD (sp_expire);
693 if (sp->sp_flag == ~0ul)
694 putchar_unlocked ('\n');
696 printf ("%lu\n", sp->sp_flag);
700 shadow_keys (int number, char *key[])
710 while ((sp = getspent ()) != NULL)
716 for (i = 0; i < number; ++i)
720 sp = getspnam (key[i]);
734 int (*func) (int number, char *key[]);
737 #define D(name) { #name, name ## _keys },
756 /* Handle arguments found by argp. */
758 parse_option (int key, char *arg, struct argp_state *state)
764 for (i = 0; databases[i].name; ++i)
765 __nss_configure_lookup (databases[i].name, arg);
769 return ARGP_ERR_UNKNOWN;
777 more_help (int key, const char *text, void *input)
780 char *long_doc, *doc, *p;
784 case ARGP_KEY_HELP_EXTRA:
785 /* We print some extra information. */
787 return xstrdup (gettext ("\
788 For bug reporting instructions, please see:\n\
789 <http://www.gnu.org/software/libc/bugs.html>.\n"));
791 long_doc = _("Supported databases:");
792 len = strlen (long_doc) + 2;
794 for (int i = 0; databases[i].name; ++i)
795 len += strlen (databases[i].name) + 1;
797 doc = (char *) malloc (len);
800 p = stpcpy (doc, long_doc);
803 for (int i = 0, col = 0; databases[i].name; ++i)
805 len = strlen (databases[i].name);
817 p = mempcpy (p, databases[i].name, len);
828 return (char *) text;
832 /* the main function */
834 main (int argc, char *argv[])
838 /* Set locale via LC_ALL. */
839 setlocale (LC_ALL, "");
840 /* Set the text message domain. */
841 textdomain (PACKAGE);
843 /* Parse and process arguments. */
844 argp_parse (&argp, argc, argv, 0, &remaining, NULL);
846 if ((argc - remaining) < 1)
848 error (0, 0, gettext ("wrong number of arguments"));
849 argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name);
853 for (i = 0; databases[i].name; ++i)
854 if (argv[remaining][0] == databases[i].name[0]
855 && !strcmp (argv[remaining], databases[i].name))
856 return databases[i].func (argc - remaining - 1, &argv[remaining + 1]);
858 fprintf (stderr, _("Unknown database: %s\n"), argv[remaining]);
859 argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name);