-/* Copyright (c) 1998-2003, 2004 Free Software Foundation, Inc.
+/* Copyright (c) 1998-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
/* getent: get entries from administrative database. */
#include <aliases.h>
#include <argp.h>
-#include <grp.h>
-#include <pwd.h>
-#include <shadow.h>
#include <ctype.h>
#include <error.h>
+#include <grp.h>
+#include <gshadow.h>
#include <libintl.h>
#include <locale.h>
+#include <mcheck.h>
#include <netdb.h>
+#include <pwd.h>
+#include <shadow.h>
+#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <netinet/ether.h>
#include <arpa/inet.h>
#include <arpa/nameser.h>
+#include <netinet/ether.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
/* Get libc version number. */
#include <version.h>
/* Supported options. */
static const struct argp_option args_options[] =
{
- { "service", 's', "CONFIG", 0, N_("Service configuration to be used") },
+ { "service", 's', N_("CONFIG"), 0, N_("Service configuration to be used") },
+ { "no-idn", 'i', NULL, 0, N_("disable IDN encoding") },
{ NULL, 0, NULL, 0, NULL },
};
/* Short description of program. */
-static const char doc[] = N_("Get entries from administrative database.\v\
-For bug reporting instructions, please see:\n\
-<http://www.gnu.org/software/libc/bugs.html>.\n");
+static const char doc[] = N_("Get entries from administrative database.");
/* Prototype for option handler. */
static error_t parse_option (int key, char *arg, struct argp_state *state);
args_options, parse_option, args_doc, doc, NULL, more_help
};
+/* Additional getaddrinfo flags for IDN encoding. */
+static int idn_flags = AI_IDN | AI_CANONIDN;
+
/* 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, "getent %s%s\n", PKGVERSION, 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\
-"), "2004");
+"), "2015");
fprintf (stream, gettext ("Written by %s.\n"), "Thorsten Kukuk");
}
/* This is for aliases */
-static inline void
+static void
print_aliases (struct aliasent *alias)
{
unsigned int i = 0;
}
/* This is for group */
-static inline void
+static void
print_group (struct group *grp)
{
unsigned int i = 0;
return result;
}
+/* This is for gshadow */
+static void
+print_gshadow (struct sgrp *sg)
+{
+ unsigned int i = 0;
+
+ printf ("%s:%s:",
+ sg->sg_namp ? sg->sg_namp : "",
+ sg->sg_passwd ? sg->sg_passwd : "");
+
+ while (sg->sg_adm[i] != NULL)
+ {
+ fputs_unlocked (sg->sg_adm[i], stdout);
+ ++i;
+ if (sg->sg_adm[i] != NULL)
+ putchar_unlocked (',');
+ }
+
+ putchar_unlocked (':');
+
+ i = 0;
+ while (sg->sg_mem[i] != NULL)
+ {
+ fputs_unlocked (sg->sg_mem[i], stdout);
+ ++i;
+ if (sg->sg_mem[i] != NULL)
+ putchar_unlocked (',');
+ }
+
+ putchar_unlocked ('\n');
+}
+
+static int
+gshadow_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
+
+ if (number == 0)
+ {
+ struct sgrp *sg;
+
+ setsgent ();
+ while ((sg = getsgent ()) != NULL)
+ print_gshadow (sg);
+ endsgent ();
+ return result;
+ }
+
+ for (i = 0; i < number; ++i)
+ {
+ struct sgrp *sg;
+
+ sg = getsgnam (key[i]);
+
+ if (sg == NULL)
+ result = 2;
+ else
+ print_gshadow (sg);
+ }
+
+ return result;
+}
+
/* This is for hosts */
static void
print_hosts (struct hostent *host)
for (i = 0; i < number; ++i)
{
struct hostent *host = NULL;
+ char addr[IN6ADDRSZ];
- if (strchr (key[i], ':') != NULL)
- {
- char addr[IN6ADDRSZ];
- if (inet_pton (AF_INET6, key[i], &addr))
- host = gethostbyaddr (addr, sizeof (addr), AF_INET6);
- }
- else if (isdigit (key[i][0]))
- {
- char addr[INADDRSZ];
- if (inet_pton (AF_INET, key[i], &addr))
- host = gethostbyaddr (addr, sizeof (addr), AF_INET);
- }
+ if (inet_pton (AF_INET6, key[i], &addr) > 0)
+ host = gethostbyaddr (addr, IN6ADDRSZ, AF_INET6);
+ else if (inet_pton (AF_INET, key[i], &addr) > 0)
+ host = gethostbyaddr (addr, INADDRSZ, AF_INET);
else if ((host = gethostbyname2 (key[i], AF_INET6)) == NULL)
host = gethostbyname2 (key[i], AF_INET);
struct addrinfo hint;
memset (&hint, '\0', sizeof (hint));
- hint.ai_flags = AI_V4MAPPED | AI_ADDRCONFIG | AI_CANONNAME | xflags;
+ hint.ai_flags = (AI_V4MAPPED | AI_ADDRCONFIG | AI_CANONNAME
+ | idn_flags | xflags);
hint.ai_family = af;
for (i = 0; i < number; ++i)
sockstr = "DGRAM";
else if (runp->ai_socktype == SOCK_RAW)
sockstr = "RAW";
+#ifdef SOCK_SEQPACKET
+ else if (runp->ai_socktype == SOCK_SEQPACKET)
+ sockstr = "SEQPACKET";
+#endif
+#ifdef SOCK_RDM
+ else if (runp->ai_socktype == SOCK_RDM)
+ sockstr = "RDM";
+#endif
+#ifdef SOCK_DCCP
+ else if (runp->ai_socktype == SOCK_DCCP)
+ sockstr = "DCCP";
+#endif
+#ifdef SOCK_PACKET
+ else if (runp->ai_socktype == SOCK_PACKET)
+ sockstr = "PACKET";
+#endif
else
{
snprintf (sockbuf, sizeof (sockbuf), "%d",
netgroup_keys (int number, char *key[])
{
int result = 0;
- int i;
if (number == 0)
{
return 3;
}
- for (i = 0; i < number; ++i)
+ if (number == 4)
+ {
+ char *host = strcmp (key[1], "*") == 0 ? NULL : key[1];
+ char *user = strcmp (key[2], "*") == 0 ? NULL : key[2];
+ char *domain = strcmp (key[3], "*") == 0 ? NULL : key[3];
+
+ printf ("%-21s (%s,%s,%s) = %d\n",
+ key[0], host ?: "", user ?: "", domain ?: "",
+ innetgr (key[0], host, user, domain));
+ }
+ else if (number == 1)
{
- if (!setnetgrent (key[i]))
+ if (!setnetgrent (key[0]))
result = 2;
else
{
char *p[3];
- printf ("%-21s", key[i]);
+ printf ("%-21s", key[0]);
while (getnetgrent (p, p + 1, p + 2))
- printf (" (%s, %s, %s)", p[0] ?: " ", p[1] ?: "", p[2] ?: "");
+ printf (" (%s,%s,%s)", p[0] ?: " ", p[1] ?: "", p[2] ?: "");
putchar_unlocked ('\n');
}
}
+ endnetgrent ();
+
return result;
}
+/* This is for initgroups */
+static int
+initgroups_keys (int number, char *key[])
+{
+ int ngrps = 100;
+ size_t grpslen = ngrps * sizeof (gid_t);
+ gid_t *grps = alloca (grpslen);
+
+ if (number == 0)
+ {
+ fprintf (stderr, _("Enumeration not supported on %s\n"), "initgroups");
+ return 3;
+ }
+
+ for (int i = 0; i < number; ++i)
+ {
+ int no = ngrps;
+ int n;
+ while ((n = getgrouplist (key[i], -1, grps, &no)) == -1
+ && no > ngrps)
+ {
+ grps = extend_alloca (grps, grpslen, no * sizeof (gid_t));
+ ngrps = no;
+ }
+
+ if (n == -1)
+ return 1;
+
+ printf ("%-21s", key[i]);
+ for (int j = 0; j < n; ++j)
+ if (grps[j] != -1)
+ printf (" %ld", (long int) grps[j]);
+ putchar_unlocked ('\n');
+ }
+
+ return 0;
+}
+
/* This is for networks */
static void
print_networks (struct netent *net)
putchar_unlocked (' ');
fputs_unlocked (net->n_aliases[i], stdout);
++i;
- if (net->n_aliases[i] != NULL)
- putchar_unlocked (',');
}
putchar_unlocked ('\n');
}
for (i = 0; i < number; ++i)
{
if (isdigit (key[i][0]))
- net = getnetbyaddr (inet_addr (key[i]), AF_UNIX);
+ net = getnetbyaddr (ntohl (inet_addr (key[i])), AF_UNSPEC);
else
net = getnetbyname (key[i]);
}
/* Now is all for passwd */
-static inline void
+static void
print_passwd (struct passwd *pwd)
{
printf ("%s:%s:%lu:%lu:%s:%s:%s\n",
}
/* This is for protocols */
-static inline void
+static void
print_protocols (struct protoent *proto)
{
unsigned int i;
}
/* Now is all for rpc */
-static inline void
+static void
print_rpc (struct rpcent *rpc)
{
int i;
if (proto != NULL)
*proto++ = '\0';
- if (isdigit (key[i][0]))
- serv = getservbyport (htons (atol (key[i])), proto);
+ char *endptr;
+ long port = strtol (key[i], &endptr, 10);
+
+ if (isdigit (key[i][0]) && *endptr == '\0'
+ && 0 <= port && port <= 65535)
+ serv = getservbyport (htons (port), proto);
else
serv = getservbyname (key[i], proto);
setspent ();
while ((sp = getspent ()) != NULL)
print_shadow (sp);
- endpwent ();
+ endspent ();
return result;
}
D(aliases)
D(ethers)
D(group)
+D(gshadow)
D(hosts)
+D(initgroups)
D(netgroup)
D(networks)
D(passwd)
static error_t
parse_option (int key, char *arg, struct argp_state *state)
{
- int i;
+ char *endp;
switch (key)
{
case 's':
- for (i = 0; databases[i].name; ++i)
- __nss_configure_lookup (databases[i].name, arg);
+ endp = strchr (arg, ':');
+ if (endp == NULL)
+ /* No specific database, change them all. */
+ for (int i = 0; databases[i].name != NULL; ++i)
+ __nss_configure_lookup (databases[i].name, arg);
+ else
+ {
+ int i;
+ for (i = 0; databases[i].name != NULL; ++i)
+ if (strncmp (databases[i].name, arg, endp - arg) == 0)
+ {
+ __nss_configure_lookup (databases[i].name, endp + 1);
+ break;
+ }
+ if (databases[i].name == NULL)
+ error (EXIT_FAILURE, 0, gettext ("Unknown database name"));
+ }
+ break;
+
+ case 'i':
+ idn_flags = 0;
break;
default:
static char *
more_help (int key, const char *text, void *input)
{
- int len;
- char *long_doc, *doc, *p;
-
switch (key)
{
+ size_t len;
+ char *doc;
+ FILE *fp;
+
case ARGP_KEY_HELP_EXTRA:
/* We print some extra information. */
-#if 0
- return xstrdup (gettext ("\
-For bug reporting instructions, please see:\n\
-<http://www.gnu.org/software/libc/bugs.html>.\n"));
-#endif
- long_doc = _("Supported databases:");
- len = strlen (long_doc) + 2;
-
- for (int i = 0; databases[i].name; ++i)
- len += strlen (databases[i].name) + 1;
-
- doc = (char *) malloc (len);
- if (doc != NULL)
+ fp = open_memstream (&doc, &len);
+ if (fp != NULL)
{
- p = stpcpy (doc, long_doc);
- *p++ = '\n';
+ fputs_unlocked (_("Supported databases:\n"), fp);
- for (int i = 0, col = 0; databases[i].name; ++i)
+ for (int i = 0, col = 0; databases[i].name != NULL; ++i)
{
len = strlen (databases[i].name);
if (i != 0)
if (col + len > 72)
{
col = 0;
- *p++ = '\n';
+ fputc_unlocked ('\n', fp);
}
else
- *p++ = ' ';
+ fputc_unlocked (' ', fp);
}
- p = mempcpy (p, databases[i].name, len);
+ fputs_unlocked (databases[i].name, fp);
col += len + 1;
}
- return doc;
+ fputs ("\n\n", fp);
+
+ fprintf (fp, gettext ("\
+For bug reporting instructions, please see:\n\
+%s.\n"), REPORT_BUGS_TO);
+
+ if (fclose (fp) == 0)
+ return doc;
}
break;
int
main (int argc, char *argv[])
{
- int remaining, i;
+ /* Debugging support. */
+ mtrace ();
/* Set locale via LC_ALL. */
setlocale (LC_ALL, "");
textdomain (PACKAGE);
/* Parse and process arguments. */
+ int remaining;
argp_parse (&argp, argc, argv, 0, &remaining, NULL);
if ((argc - remaining) < 1)
return 1;
}
- for (i = 0; databases[i].name; ++i)
+ for (int i = 0; databases[i].name; ++i)
if (argv[remaining][0] == databases[i].name[0]
&& !strcmp (argv[remaining], databases[i].name))
return databases[i].func (argc - remaining - 1, &argv[remaining + 1]);