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-rw-r--r--nss/getent.c511
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diff --git a/nss/getent.c b/nss/getent.c
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+/* Copyright (c) 1998 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1998.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+/* getent: get entries from administrative database
+ supported databases: passwd, group, hosts, services, protocols
+ and networks */
+
+#include <argp.h>
+#include <grp.h>
+#include <pwd.h>
+#include <ctype.h>
+#include <error.h>
+#include <libintl.h>
+#include <locale.h>
+#include <netdb.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+/* Get libc version number. */
+#include <version.h>
+
+#define PACKAGE _libc_intl_domainname
+
+/* Name and version of program. */
+static void print_version (FILE *stream, struct argp_state *state);
+void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version;
+
+/* Short description of parameters. */
+static const char args_doc[] = N_("database [key ...]");
+
+/* Short description of program. */
+static const char doc[] =
+ N_("getent - get entries from administrative database.");
+
+/* Data structure to communicate with argp functions. */
+static struct argp argp = {
+ NULL, NULL, args_doc, doc,
+};
+
+/* Print the version information. */
+static void
+print_version (FILE *stream, struct argp_state *state)
+{
+ fprintf (stream, "getent (GNU %s) %s\n", PACKAGE, VERSION);
+ fprintf (stream, gettext ("\
+Copyright (C) %s Free Software Foundation, Inc.\n\
+This is free software; see the source for copying conditions. There is NO\n\
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\
+"), "1998");
+ fprintf (stream, gettext ("Written by %s.\n"), "Thorsten Kukuk");
+}
+
+/* This is for group */
+static inline void
+print_group (struct group *grp)
+{
+ unsigned int i = 0;
+
+ printf ("%s:%s:%ld:", grp->gr_name ? grp->gr_name : "",
+ grp->gr_passwd ? grp->gr_passwd : "",
+ (unsigned long)grp->gr_gid);
+
+ while (grp->gr_mem[i] != NULL)
+ {
+ fputs (grp->gr_mem[i], stdout);
+ ++i;
+ if (grp->gr_mem[i] != NULL)
+ fputs (",", stdout);
+ }
+ fputs ("\n", stdout);
+}
+
+static inline int
+group_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
+
+ for (i = 0; i < number; ++i)
+ {
+ struct group *grp;
+
+ if (isdigit (key[i][0]))
+ grp = getgrgid (atol (key[i]));
+ else
+ grp = getgrnam (key[i]);
+
+ if (grp == NULL)
+ result = 2;
+ else
+ print_group (grp);
+ }
+
+ return result;
+}
+
+/* This is for networks */
+static inline void
+print_networks (struct netent *net)
+{
+ unsigned int i;
+ struct in_addr ip;
+ ip.s_addr = htonl (net->n_net);
+
+ fputs (net->n_name, stdout);
+ for (i = strlen (net->n_name); i < 22; ++i)
+ fputs (" ", stdout);
+ fputs (inet_ntoa (ip), stdout);
+
+ i = 0;
+ while (net->n_aliases[i] != NULL)
+ {
+ fputs (" ", stdout);
+ fputs (net->n_aliases[i], stdout);
+ ++i;
+ if (net->n_aliases[i] != NULL)
+ fputs (",", stdout);
+ }
+ fputs ("\n", stdout);
+}
+
+static inline int
+networks_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
+
+ for (i = 0; i < number; ++i)
+ {
+ struct netent *net;
+
+ if (isdigit (key[i][0]))
+ net = getnetbyaddr (inet_addr (key[i]), AF_UNIX);
+ else
+ net = getnetbyname (key[i]);
+
+ if (net == NULL)
+ result = 2;
+ else
+ print_networks (net);
+ }
+
+ return result;
+}
+
+/* Now is all for passwd */
+static inline void
+print_passwd (struct passwd *pwd)
+{
+ printf ("%s:%s:%ld:%ld:%s:%s:%s\n",
+ pwd->pw_name ? pwd->pw_name : "",
+ pwd->pw_passwd ? pwd->pw_passwd : "",
+ (unsigned long)pwd->pw_uid,
+ (unsigned long)pwd->pw_gid,
+ pwd->pw_gecos ? pwd->pw_gecos : "",
+ pwd->pw_dir ? pwd->pw_dir : "",
+ pwd->pw_shell ? pwd->pw_shell : "");
+}
+
+static inline int
+passwd_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
+
+ for (i = 0; i < number; ++i)
+ {
+ struct passwd *pwd;
+
+ if (isdigit (key[i][0]))
+ pwd = getpwuid (atol (key[i]));
+ else
+ pwd = getpwnam (key[i]);
+
+ if (pwd == NULL)
+ result = 2;
+ else
+ print_passwd (pwd);
+ }
+
+ return result;
+}
+
+/* This is for protocols */
+static inline void
+print_protocols (struct protoent *proto)
+{
+ unsigned int i;
+
+ fputs (proto->p_name, stdout);
+ for (i = strlen (proto->p_name); i < 22; ++i)
+ fputs (" ", stdout);
+ printf ("%d", proto->p_proto);
+
+ i = 0;
+ while (proto->p_aliases[i] != NULL)
+ {
+ fputs (" ", stdout);
+ fputs (proto->p_aliases[i], stdout);
+ ++i;
+ }
+ fputs ("\n", stdout);
+}
+
+static inline int
+protocols_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
+
+ for (i = 0; i < number; ++i)
+ {
+ struct protoent *proto;
+
+ if (isdigit (key[i][0]))
+ proto = getprotobynumber (atol (key[i]));
+ else
+ proto = getprotobyname (key[i]);
+
+ if (proto == NULL)
+ result = 2;
+ else
+ print_protocols (proto);
+ }
+
+ return result;
+}
+
+/* This is for hosts */
+static inline void
+print_hosts (struct hostent *host)
+{
+ unsigned int i;
+ char *ip = inet_ntoa(* (struct in_addr *) host->h_addr_list[0]);
+
+ fputs (ip, stdout);
+ for (i = strlen (ip); i < 16; ++i)
+ fputs (" ", stdout);
+ fputs (host->h_name, stdout);
+
+ i = 0;
+ while (host->h_aliases[i] != NULL)
+ {
+ fputs (" ", stdout);
+ fputs (host->h_aliases[i], stdout);
+ ++i;
+ }
+ fputs ("\n", stdout);
+}
+
+static inline int
+hosts_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
+
+ for (i = 0; i < number; ++i)
+ {
+ struct hostent *host;
+
+ if (isdigit (key[i][0]))
+ {
+ struct in_addr addr;
+ addr.s_addr = inet_addr (key[i]);
+
+ host = gethostbyaddr ((char *)&addr, sizeof (struct in_addr),
+ AF_INET);
+ }
+ else
+ host = gethostbyname (key[i]);
+
+ if (host == NULL)
+ result = 2;
+ else
+ print_hosts (host);
+ }
+
+ return result;
+}
+
+/* for services */
+static inline void
+print_services (struct servent *serv)
+{
+ unsigned int i;
+
+ fputs (serv->s_name, stdout);
+ for (i = strlen (serv->s_name); i < 22; ++i)
+ fputs (" ", stdout);
+ printf ("%d/%s", ntohs (serv->s_port), serv->s_proto);
+
+ i = 0;
+ while (serv->s_aliases[i] != NULL)
+ {
+ fputs (" ", stdout);
+ fputs (serv->s_aliases[i], stdout);
+ ++i;
+ }
+ fputs ("\n", stdout);
+}
+
+static inline int
+services_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
+
+ for (i = 0; i < number; ++i)
+ {
+ struct servent *serv;
+ char *proto = strchr (key[i], '/');
+
+ if (proto == NULL)
+ {
+ setservent (0);
+ if (isdigit (key[i][0]))
+ {
+ int port = htons (atol (key[i]));
+ while ((serv = getservent ()) != NULL)
+ if (serv->s_port == port)
+ {
+ print_services (serv);
+ break;
+ }
+ }
+ else
+ {
+ while ((serv = getservent ()) != NULL)
+ if (strcmp (serv->s_name, key[i]) == 0)
+ {
+ print_services (serv);
+ break;
+ }
+ }
+ endservent ();
+ }
+ else
+ {
+ *proto++ = '\0';
+
+ if (isdigit (key[i][0]))
+ serv = getservbyport (atol (key[i]), proto);
+ else
+ serv = getservbyname (key[i], proto);
+
+ if (serv == NULL)
+ result = 2;
+ else
+ print_services (serv);
+ }
+ }
+
+ return result;
+}
+
+/* the main function */
+int
+main (int argc, char *argv[])
+{
+ int remaining;
+
+ /* Set locale via LC_ALL. */
+ setlocale (LC_ALL, "");
+ /* Set the text message domain. */
+ textdomain (PACKAGE);
+
+ /* Parse and process arguments. */
+ argp_parse (&argp, argc, argv, 0, &remaining, NULL);
+
+ if ((argc - remaining) < 1)
+ {
+ error (0, 0, gettext ("wrong number of arguments"));
+ argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name);
+ return 1;
+ }
+
+ switch(argv[1][0])
+ {
+ case 'g': /* group */
+ if (strcmp (argv[1], "group") == 0)
+ {
+ if (argc == 2)
+ {
+ struct group *grp;
+
+ setgrent ();
+ while ((grp = getgrent()) != NULL)
+ print_group (grp);
+ endgrent ();
+ }
+ else
+ return group_keys (argc - 2, &argv[2]);
+ }
+ else
+ goto error;
+ break;
+ case 'h': /* hosts */
+ if (strcmp (argv[1], "hosts") == 0)
+ {
+ if (argc == 2)
+ {
+ struct hostent *host;
+
+ sethostent (0);
+ while ((host = gethostent()) != NULL)
+ print_hosts (host);
+ endhostent ();
+ }
+ else
+ return hosts_keys (argc - 2, &argv[2]);
+ }
+ else
+ goto error;
+ break;
+ case 'n': /* networks */
+ if (strcmp (argv[1], "networks") == 0)
+ {
+ if (argc == 2)
+ {
+ struct netent *net;
+
+ setnetent (0);
+ while ((net = getnetent()) != NULL)
+ print_networks (net);
+ endnetent ();
+ }
+ else
+ return networks_keys (argc - 2, &argv[2]);
+ }
+ else
+ goto error;
+ break;
+ case 'p': /* passwd, protocols */
+ if (strcmp (argv[1], "passwd") == 0)
+ {
+ if (argc == 2)
+ {
+ struct passwd *pwd;
+
+ setpwent ();
+ while ((pwd = getpwent()) != NULL)
+ print_passwd (pwd);
+ endpwent ();
+ }
+ else
+ return passwd_keys (argc - 2, &argv[2]);
+ }
+ else if (strcmp (argv[1], "protocols") == 0)
+ {
+ if (argc == 2)
+ {
+ struct protoent *proto;
+
+ setprotoent (0);
+ while ((proto = getprotoent()) != NULL)
+ print_protocols (proto);
+ endprotoent ();
+ }
+ else
+ return protocols_keys (argc - 2, &argv[2]);
+ }
+ else
+ goto error;
+ break;
+ case 's': /* services */
+ if (strcmp (argv[1], "services") == 0)
+ {
+ if (argc == 2)
+ {
+ struct servent *serv;
+
+ setservent (0);
+ while ((serv = getservent()) != NULL)
+ print_services (serv);
+ endservent ();
+ }
+ else
+ return services_keys (argc - 2, &argv[2]);
+ }
+ else
+ goto error;
+ break;
+ default:
+ error:
+ fprintf (stderr, _("Unknown database: %s\n"), argv[1]);
+ argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name);
+ return 1;
+ }
+
+ return 0;
+}
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