-/* Copyright (c) 1998, 1999, 2000 Free Software Foundation, Inc.
+/* Copyright (c) 1998-2021 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@suse.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.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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.
+ Lesser 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. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
-/* getent: get entries from administrative database
- supported databases: passwd, group, hosts, services, protocols
- and networks */
+/* getent: get entries from administrative database. */
+#include <aliases.h>
#include <argp.h>
-#include <grp.h>
-#include <pwd.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 <arpa/inet.h>
#include <arpa/nameser.h>
+#include <netinet/ether.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <scratch_buffer.h>
+#include <inttypes.h>
/* Get libc version number. */
#include <version.h>
/* Short description of parameters. */
static const char args_doc[] = N_("database [key ...]");
+/* Supported options. */
+static const struct argp_option args_options[] =
+ {
+ { "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_("getent - get entries from administrative database.");
+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);
+
+/* Function to print some extra text in the help message. */
+static char *more_help (int key, const char *text, void *input);
/* Data structure to communicate with argp functions. */
-static struct argp argp = {
- NULL, NULL, args_doc, doc,
-};
+static struct argp argp =
+ {
+ 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\
-"), "1999");
+"), "2021");
fprintf (stream, gettext ("Written by %s.\n"), "Thorsten Kukuk");
}
-/* This is for group */
-static inline void
-print_group (struct group *grp)
+/* This is for aliases */
+static void
+print_aliases (struct aliasent *alias)
{
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);
+ printf ("%s: ", alias->alias_name);
+ for (i = strlen (alias->alias_name); i < 14; ++i)
+ fputs_unlocked (" ", stdout);
- while (grp->gr_mem[i] != NULL)
+ for (i = 0; i < alias->alias_members_len; ++i)
+ printf ("%s%s",
+ alias->alias_members [i],
+ i + 1 == alias->alias_members_len ? "\n" : ", ");
+}
+
+static int
+aliases_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
+ struct aliasent *alias;
+
+ if (number == 0)
{
- fputs (grp->gr_mem[i], stdout);
- ++i;
- if (grp->gr_mem[i] != NULL)
- fputs (",", stdout);
+ setaliasent ();
+ while ((alias = getaliasent ()) != NULL)
+ print_aliases (alias);
+ endaliasent ();
+ return result;
+ }
+
+ for (i = 0; i < number; ++i)
+ {
+ alias = getaliasbyname (key[i]);
+
+ if (alias == NULL)
+ result = 2;
+ else
+ print_aliases (alias);
}
- fputs ("\n", stdout);
+
+ return result;
}
-static inline int
+/* This is for ethers */
+static int
+ethers_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
+
+ if (number == 0)
+ {
+ fprintf (stderr, _("Enumeration not supported on %s\n"), "ethers");
+ return 3;
+ }
+
+ for (i = 0; i < number; ++i)
+ {
+ struct ether_addr *ethp, eth;
+ char buffer [1024], *p;
+
+ ethp = ether_aton (key[i]);
+ if (ethp != NULL)
+ {
+ if (ether_ntohost (buffer, ethp))
+ {
+ result = 2;
+ continue;
+ }
+ p = buffer;
+ }
+ else
+ {
+ if (ether_hostton (key[i], ð))
+ {
+ result = 2;
+ continue;
+ }
+ p = key[i];
+ ethp = ð
+ }
+ printf ("%s %s\n", ether_ntoa (ethp), p);
+ }
+
+ return result;
+}
+
+/* This is for group */
+static void
+print_group (struct group *grp)
+{
+ if (putgrent (grp, stdout) != 0)
+ fprintf (stderr, "error writing group entry: %m\n");
+}
+
+static int
group_keys (int number, char *key[])
{
int result = 0;
int i;
+ struct group *grp;
+
+ if (number == 0)
+ {
+ setgrent ();
+ while ((grp = getgrent ()) != NULL)
+ print_group (grp);
+ endgrent ();
+ return result;
+ }
for (i = 0; i < number; ++i)
{
- struct group *grp;
+ errno = 0;
+ char *ep;
+ gid_t arg_gid = strtoul(key[i], &ep, 10);
- if (isdigit (key[i][0]))
- grp = getgrgid (atol (key[i]));
+ if (errno != EINVAL && *key[i] != '\0' && *ep == '\0')
+ /* Valid numeric gid. */
+ grp = getgrgid (arg_gid);
else
grp = getgrnam (key[i]);
return result;
}
+/* This is for gshadow */
+static void
+print_gshadow (struct sgrp *sg)
+{
+ if (putsgent (sg, stdout) != 0)
+ fprintf (stderr, "error writing gshadow entry: %m\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)
+{
+ unsigned int cnt;
+
+ for (cnt = 0; host->h_addr_list[cnt] != NULL; ++cnt)
+ {
+ char buf[INET6_ADDRSTRLEN];
+ const char *ip = inet_ntop (host->h_addrtype, host->h_addr_list[cnt],
+ buf, sizeof (buf));
+
+ printf ("%-15s %s", ip, host->h_name);
+
+ unsigned int i;
+ for (i = 0; host->h_aliases[i] != NULL; ++i)
+ {
+ putchar_unlocked (' ');
+ fputs_unlocked (host->h_aliases[i], stdout);
+ }
+ putchar_unlocked ('\n');
+ }
+}
+
+static int
+hosts_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
+ struct hostent *host;
+
+ if (number == 0)
+ {
+ sethostent (0);
+ while ((host = gethostent ()) != NULL)
+ print_hosts (host);
+ endhostent ();
+ return result;
+ }
+
+ for (i = 0; i < number; ++i)
+ {
+ struct hostent *host = NULL;
+ char addr[IN6ADDRSZ];
+
+ 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);
+
+ if (host == NULL)
+ result = 2;
+ else
+ print_hosts (host);
+ }
+
+ return result;
+}
+
+/* This is for hosts, but using getaddrinfo */
+static int
+ahosts_keys_int (int af, int xflags, int number, char *key[])
+{
+ int result = 0;
+ int i;
+ struct hostent *host;
+
+ if (number == 0)
+ {
+ sethostent (0);
+ while ((host = gethostent ()) != NULL)
+ print_hosts (host);
+ endhostent ();
+ return result;
+ }
+
+ struct addrinfo hint;
+ memset (&hint, '\0', sizeof (hint));
+ hint.ai_flags = (AI_V4MAPPED | AI_ADDRCONFIG | AI_CANONNAME
+ | idn_flags | xflags);
+ hint.ai_family = af;
+
+ for (i = 0; i < number; ++i)
+ {
+ struct addrinfo *res;
+
+ if (getaddrinfo (key[i], NULL, &hint, &res) != 0)
+ result = 2;
+ else
+ {
+ struct addrinfo *runp = res;
+
+ while (runp != NULL)
+ {
+ char sockbuf[20];
+ const char *sockstr;
+ if (runp->ai_socktype == SOCK_STREAM)
+ sockstr = "STREAM";
+ else if (runp->ai_socktype == SOCK_DGRAM)
+ 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",
+ runp->ai_socktype);
+ sockstr = sockbuf;
+ }
+
+ /* Three digits per byte, plus '%' and null terminator. */
+ char scope[3 * sizeof (uint32_t) + 2];
+ struct sockaddr_in6 *addr6
+ = (struct sockaddr_in6 *) runp->ai_addr;
+ if (runp->ai_family != AF_INET6 || addr6->sin6_scope_id == 0)
+ /* No scope ID present. */
+ scope[0] = '\0';
+ else
+ snprintf (scope, sizeof (scope), "%%%" PRIu32,
+ addr6->sin6_scope_id);
+
+ char buf[INET6_ADDRSTRLEN];
+ if (inet_ntop (runp->ai_family,
+ runp->ai_family == AF_INET
+ ? (void *) &((struct sockaddr_in *) runp->ai_addr)->sin_addr
+ : &addr6->sin6_addr,
+ buf, sizeof (buf)) == NULL)
+ {
+ strcpy (buf, "<invalid>");
+ scope[0] = '\0';
+ }
+
+ int pad = 15 - strlen (buf) - strlen (scope);
+ if (pad < 0)
+ pad = 0;
+
+ printf ("%s%-*s %-6s %s\n",
+ buf, pad, scope, sockstr, runp->ai_canonname ?: "");
+
+ runp = runp->ai_next;
+ }
+
+ freeaddrinfo (res);
+ }
+ }
+
+ return result;
+}
+
+static int
+ahosts_keys (int number, char *key[])
+{
+ return ahosts_keys_int (AF_UNSPEC, 0, number, key);
+}
+
+static int
+ahostsv4_keys (int number, char *key[])
+{
+ return ahosts_keys_int (AF_INET, 0, number, key);
+}
+
+static int
+ahostsv6_keys (int number, char *key[])
+{
+ return ahosts_keys_int (AF_INET6, AI_V4MAPPED, number, key);
+}
+
+/* This is for netgroup */
+static int
+netgroup_keys (int number, char *key[])
+{
+ int result = 0;
+
+ if (number == 0)
+ {
+ fprintf (stderr, _("Enumeration not supported on %s\n"), "netgroup");
+ return 3;
+ }
+
+ 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[0]))
+ result = 2;
+ else
+ {
+ char *p[3];
+
+ printf ("%-21s", key[0]);
+
+ while (getnetgrent (p, p + 1, p + 2))
+ printf (" (%s,%s,%s)", p[0] ?: " ", p[1] ?: "", p[2] ?: "");
+ putchar_unlocked ('\n');
+ }
+ }
+
+ endnetgrent ();
+
+ return result;
+}
+
+#define DYNARRAY_STRUCT gid_list
+#define DYNARRAY_ELEMENT gid_t
+#define DYNARRAY_PREFIX gid_list_
+#define DYNARRAY_INITIAL_SIZE 10
+#include <malloc/dynarray-skeleton.c>
+
+/* This is for initgroups */
+static int
+initgroups_keys (int number, char *key[])
+{
+ if (number == 0)
+ {
+ fprintf (stderr, _("Enumeration not supported on %s\n"), "initgroups");
+ return 3;
+ }
+
+ struct gid_list list;
+ gid_list_init (&list);
+ if (!gid_list_resize (&list, 10))
+ {
+ fprintf (stderr, _("Could not allocate group list: %m\n"));
+ return 3;
+ }
+
+ for (int i = 0; i < number; ++i)
+ {
+ int no = gid_list_size (&list);
+ int n;
+ while ((n = getgrouplist (key[i], -1, gid_list_begin (&list), &no)) == -1
+ && no > gid_list_size (&list))
+ {
+ if (!gid_list_resize (&list, no))
+ {
+ fprintf (stderr, _("Could not allocate group list: %m\n"));
+ return 3;
+ }
+ }
+
+ if (n == -1)
+ {
+ gid_list_free (&list);
+ return 1;
+ }
+
+ const gid_t *grps = gid_list_begin (&list);
+ printf ("%-21s", key[i]);
+ for (int j = 0; j < n; ++j)
+ if (grps[j] != -1)
+ printf (" %ld", (long int) grps[j]);
+ putchar_unlocked ('\n');
+ }
+
+ gid_list_free (&list);
+
+ return 0;
+}
+
/* This is for networks */
-static inline void
+static 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);
+ printf ("%-21s %s", net->n_name, inet_ntoa (ip));
i = 0;
while (net->n_aliases[i] != NULL)
{
- fputs (" ", stdout);
- fputs (net->n_aliases[i], stdout);
+ putchar_unlocked (' ');
+ fputs_unlocked (net->n_aliases[i], stdout);
++i;
- if (net->n_aliases[i] != NULL)
- fputs (",", stdout);
}
- fputs ("\n", stdout);
+ putchar_unlocked ('\n');
}
-static inline int
+static int
networks_keys (int number, char *key[])
{
int result = 0;
int i;
+ struct netent *net;
- for (i = 0; i < number; ++i)
+ if (number == 0)
{
- struct netent *net;
+ setnetent (0);
+ while ((net = getnetent ()) != NULL)
+ print_networks (net);
+ endnetent ();
+ return result;
+ }
+ 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:%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 : "");
+ if (putpwent (pwd, stdout) != 0)
+ fprintf (stderr, "error writing passwd entry: %m\n");
}
-static inline int
+static int
passwd_keys (int number, char *key[])
{
int result = 0;
int i;
+ struct passwd *pwd;
+
+ if (number == 0)
+ {
+ setpwent ();
+ while ((pwd = getpwent ()) != NULL)
+ print_passwd (pwd);
+ endpwent ();
+ return result;
+ }
for (i = 0; i < number; ++i)
{
- struct passwd *pwd;
+ errno = 0;
+ char *ep;
+ uid_t arg_uid = strtoul(key[i], &ep, 10);
- if (isdigit (key[i][0]))
- pwd = getpwuid (atol (key[i]));
+ if (errno != EINVAL && *key[i] != '\0' && *ep == '\0')
+ /* Valid numeric uid. */
+ pwd = getpwuid (arg_uid);
else
pwd = getpwnam (key[i]);
}
/* This is for protocols */
-static inline void
+static 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);
+ printf ("%-21s %d", proto->p_name, proto->p_proto);
i = 0;
while (proto->p_aliases[i] != NULL)
{
- fputs (" ", stdout);
- fputs (proto->p_aliases[i], stdout);
+ putchar_unlocked (' ');
+ fputs_unlocked (proto->p_aliases[i], stdout);
++i;
}
- fputs ("\n", stdout);
+ putchar_unlocked ('\n');
}
-static inline int
+static int
protocols_keys (int number, char *key[])
{
int result = 0;
int i;
+ struct protoent *proto;
- for (i = 0; i < number; ++i)
+ if (number == 0)
{
- struct protoent *proto;
+ setprotoent (0);
+ while ((proto = getprotoent ()) != NULL)
+ print_protocols (proto);
+ endprotoent ();
+ return result;
+ }
+ for (i = 0; i < number; ++i)
+ {
if (isdigit (key[i][0]))
proto = getprotobynumber (atol (key[i]));
else
return result;
}
-/* This is for hosts */
-static inline void
-print_hosts (struct hostent *host)
+#if HAVE_SUNRPC
+/* Now is all for rpc */
+static void
+print_rpc (struct rpcent *rpc)
{
- unsigned int i;
- char buf[INET6_ADDRSTRLEN];
- const char *ip = inet_ntop (host->h_addrtype, host->h_addr_list[0],
- buf, sizeof (buf));
+ int i;
- fputs (ip, stdout);
- for (i = strlen (ip); i < 16; ++i)
- fputs (" ", stdout);
- fputs (host->h_name, stdout);
+ printf ("%-15s %d%s",
+ rpc->r_name, rpc->r_number, rpc->r_aliases[0] ? " " : "");
- i = 0;
- while (host->h_aliases[i] != NULL)
- {
- fputs (" ", stdout);
- fputs (host->h_aliases[i], stdout);
- ++i;
- }
- fputs ("\n", stdout);
+ for (i = 0; rpc->r_aliases[i]; ++i)
+ printf (" %s", rpc->r_aliases[i]);
+ putchar_unlocked ('\n');
}
-static inline int
-hosts_keys (int number, char *key[])
+static int
+rpc_keys (int number, char *key[])
{
int result = 0;
int i;
+ struct rpcent *rpc;
- for (i = 0; i < number; ++i)
+ if (number == 0)
{
- struct hostent *host = NULL;
+ setrpcent (0);
+ while ((rpc = getrpcent ()) != NULL)
+ print_rpc (rpc);
+ endrpcent ();
+ return result;
+ }
- 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);
- }
- else if ((host = gethostbyname2 (key[i], AF_INET6)) == NULL)
- host = gethostbyname2 (key[i], AF_INET);
+ for (i = 0; i < number; ++i)
+ {
+ if (isdigit (key[i][0]))
+ rpc = getrpcbynumber (atol (key[i]));
+ else
+ rpc = getrpcbyname (key[i]);
- if (host == NULL)
+ if (rpc == NULL)
result = 2;
else
- print_hosts (host);
+ print_rpc (rpc);
}
return result;
}
+#endif
/* for services */
-static inline void
+static 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);
+ printf ("%-21s %d/%s", serv->s_name, ntohs (serv->s_port), serv->s_proto);
i = 0;
while (serv->s_aliases[i] != NULL)
{
- fputs (" ", stdout);
- fputs (serv->s_aliases[i], stdout);
+ putchar_unlocked (' ');
+ fputs_unlocked (serv->s_aliases[i], stdout);
++i;
}
- fputs ("\n", stdout);
+ putchar_unlocked ('\n');
}
-static inline int
+static int
services_keys (int number, char *key[])
{
int result = 0;
int i;
+ struct servent *serv;
+
+ if (!number)
+ {
+ setservent (0);
+ while ((serv = getservent ()) != NULL)
+ print_services (serv);
+ endservent ();
+ return result;
+ }
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 (proto != NULL)
+ *proto++ = '\0';
- if (isdigit (key[i][0]))
- serv = getservbyport (atol (key[i]), proto);
- else
- serv = getservbyname (key[i], proto);
+ char *endptr;
+ long port = strtol (key[i], &endptr, 10);
- if (serv == NULL)
- result = 2;
- else
- print_services (serv);
- }
+ if (isdigit (key[i][0]) && *endptr == '\0'
+ && 0 <= port && port <= 65535)
+ serv = getservbyport (htons (port), 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[])
+/* This is for shadow */
+static void
+print_shadow (struct spwd *sp)
{
- int remaining;
-
- /* Set locale via LC_ALL. */
- setlocale (LC_ALL, "");
- /* Set the text message domain. */
- textdomain (PACKAGE);
+ if (putspent (sp, stdout) != 0)
+ fprintf (stderr, "error writing shadow entry: %m\n");
+}
- /* Parse and process arguments. */
- argp_parse (&argp, argc, argv, 0, &remaining, NULL);
+static int
+shadow_keys (int number, char *key[])
+{
+ int result = 0;
+ int i;
- if ((argc - remaining) < 1)
+ if (number == 0)
{
- error (0, 0, gettext ("wrong number of arguments"));
- argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name);
- return 1;
+ struct spwd *sp;
+
+ setspent ();
+ while ((sp = getspent ()) != NULL)
+ print_shadow (sp);
+ endspent ();
+ return result;
}
- switch(argv[1][0])
+ for (i = 0; i < number; ++i)
{
- case 'g': /* group */
- if (strcmp (argv[1], "group") == 0)
- {
- if (argc == 2)
- {
- struct group *grp;
+ struct spwd *sp;
- 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;
+ sp = getspnam (key[i]);
- sethostent (0);
- while ((host = gethostent()) != NULL)
- print_hosts (host);
- endhostent ();
- }
- else
- return hosts_keys (argc - 2, &argv[2]);
- }
+ if (sp == NULL)
+ result = 2;
else
- goto error;
- break;
- case 'n': /* networks */
- if (strcmp (argv[1], "networks") == 0)
- {
- if (argc == 2)
- {
- struct netent *net;
+ print_shadow (sp);
+ }
- setnetent (0);
- while ((net = getnetent()) != NULL)
- print_networks (net);
- endnetent ();
- }
- else
- return networks_keys (argc - 2, &argv[2]);
- }
+ return result;
+}
+
+struct
+ {
+ const char *name;
+ int (*func) (int number, char *key[]);
+ } databases[] =
+ {
+#define D(name) { #name, name ## _keys },
+D(ahosts)
+D(ahostsv4)
+D(ahostsv6)
+D(aliases)
+D(ethers)
+D(group)
+D(gshadow)
+D(hosts)
+D(initgroups)
+D(netgroup)
+D(networks)
+D(passwd)
+D(protocols)
+#if HAVE_SUNRPC
+D(rpc)
+#endif
+D(services)
+D(shadow)
+#undef D
+ { NULL, NULL }
+ };
+
+/* Handle arguments found by argp. */
+static error_t
+parse_option (int key, char *arg, struct argp_state *state)
+{
+ char *endp;
+ switch (key)
+ {
+ case 's':
+ 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
- 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]);
+ 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"));
}
- else if (strcmp (argv[1], "protocols") == 0)
- {
- if (argc == 2)
- {
- struct protoent *proto;
+ break;
- setprotoent (0);
- while ((proto = getprotoent()) != NULL)
- print_protocols (proto);
- endprotoent ();
- }
- else
- return protocols_keys (argc - 2, &argv[2]);
- }
- else
- goto error;
+ case 'i':
+ idn_flags = 0;
break;
- case 's': /* services */
- if (strcmp (argv[1], "services") == 0)
+
+ default:
+ return ARGP_ERR_UNKNOWN;
+ }
+
+ return 0;
+}
+
+
+static char *
+more_help (int key, const char *text, void *input)
+{
+ switch (key)
+ {
+ size_t len;
+ char *doc;
+ FILE *fp;
+
+ case ARGP_KEY_HELP_EXTRA:
+ /* We print some extra information. */
+ fp = open_memstream (&doc, &len);
+ if (fp != NULL)
{
- if (argc == 2)
- {
- struct servent *serv;
+ fputs_unlocked (_("Supported databases:\n"), fp);
- setservent (0);
- while ((serv = getservent()) != NULL)
- print_services (serv);
- endservent ();
+ 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;
+ fputc_unlocked ('\n', fp);
+ }
+ else
+ fputc_unlocked (' ', fp);
+ }
+
+ fputs_unlocked (databases[i].name, fp);
+ col += len + 1;
}
- else
- return services_keys (argc - 2, &argv[2]);
+
+ 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;
}
- else
- goto error;
break;
+
default:
- error:
- fprintf (stderr, _("Unknown database: %s\n"), argv[1]);
+ break;
+ }
+ return (char *) text;
+}
+
+
+/* the main function */
+int
+main (int argc, char *argv[])
+{
+ /* Debugging support. */
+ mtrace ();
+
+ /* Set locale via LC_ALL. */
+ setlocale (LC_ALL, "");
+ /* Set the text message domain. */
+ textdomain (PACKAGE);
+
+ /* Parse and process arguments. */
+ int remaining;
+ 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;
}
- return 0;
+ 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]);
+
+ fprintf (stderr, _("Unknown database: %s\n"), argv[remaining]);
+ argp_help (&argp, stdout, ARGP_HELP_SEE, program_invocation_short_name);
+ return 1;
}
projects / thirdparty / glibc.git / blobdiff