-/* Copyright (c) 1998-2015 Free Software Foundation, Inc.
+/* Copyright (c) 1998-2023 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 Lesser General Public
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
+ <https://www.gnu.org/licenses/>. */
/* getent: get entries from administrative database. */
#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>
{
{ "service", 's', N_("CONFIG"), 0, N_("Service configuration to be used") },
{ "no-idn", 'i', NULL, 0, N_("disable IDN encoding") },
+ { "no-addrconfig", 'A', NULL, 0,
+ N_("do not filter out unsupported IPv4/IPv6 addresses (with ahosts*)") },
{ NULL, 0, NULL, 0, NULL },
};
/* Additional getaddrinfo flags for IDN encoding. */
static int idn_flags = AI_IDN | AI_CANONIDN;
+/* Set to 0 by --no-addrconfig. */
+static int addrconfig_flags = AI_ADDRCONFIG;
+
/* Print the version information. */
static void
print_version (FILE *stream, struct argp_state *state)
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\
-"), "2015");
+"), "2023");
fprintf (stream, gettext ("Written by %s.\n"), "Thorsten Kukuk");
}
static void
print_group (struct group *grp)
{
- unsigned int i = 0;
-
- printf ("%s:%s:%lu:", grp->gr_name ? grp->gr_name : "",
- grp->gr_passwd ? grp->gr_passwd : "",
- (unsigned long int) grp->gr_gid);
-
- while (grp->gr_mem[i] != NULL)
- {
- fputs_unlocked (grp->gr_mem[i], stdout);
- ++i;
- if (grp->gr_mem[i] != NULL)
- putchar_unlocked (',');
- }
- putchar_unlocked ('\n');
+ if (putgrent (grp, stdout) != 0)
+ fprintf (stderr, "error writing group entry: %m\n");
}
static int
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');
+ if (putsgent (sg, stdout) != 0)
+ fprintf (stderr, "error writing gshadow entry: %m\n");
}
static int
struct addrinfo hint;
memset (&hint, '\0', sizeof (hint));
- hint.ai_flags = (AI_V4MAPPED | AI_ADDRCONFIG | AI_CANONNAME
+ hint.ai_flags = (AI_V4MAPPED | addrconfig_flags | AI_CANONNAME
| idn_flags | xflags);
hint.ai_family = af;
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];
- printf ("%-15s %-6s %s\n",
- inet_ntop (runp->ai_family,
- runp->ai_family == AF_INET
- ? (void *) &((struct sockaddr_in *) runp->ai_addr)->sin_addr
- : (void *) &((struct sockaddr_in6 *) runp->ai_addr)->sin6_addr,
- buf, sizeof (buf)),
- sockstr,
- runp->ai_canonname ?: "");
+ 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;
}
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[])
{
- 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;
}
+ 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 = ngrps;
+ int no = gid_list_size (&list);
int n;
- while ((n = getgrouplist (key[i], -1, grps, &no)) == -1
- && no > ngrps)
+ while ((n = getgrouplist (key[i], -1, gid_list_begin (&list), &no)) == -1
+ && no > gid_list_size (&list))
{
- grps = extend_alloca (grps, grpslen, no * sizeof (gid_t));
- ngrps = no;
+ if (!gid_list_resize (&list, no))
+ {
+ fprintf (stderr, _("Could not allocate group list: %m\n"));
+ return 3;
+ }
}
if (n == -1)
- return 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)
putchar_unlocked ('\n');
}
+ gid_list_free (&list);
+
return 0;
}
static void
print_passwd (struct passwd *pwd)
{
- printf ("%s:%s:%lu:%lu:%s:%s:%s\n",
- pwd->pw_name ? pwd->pw_name : "",
- pwd->pw_passwd ? pwd->pw_passwd : "",
- (unsigned long int) pwd->pw_uid,
- (unsigned long int) 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 int
return result;
}
+#if HAVE_SUNRPC
/* Now is all for rpc */
static void
print_rpc (struct rpcent *rpc)
return result;
}
+#endif
/* for services */
static void
static void
print_shadow (struct spwd *sp)
{
- printf ("%s:%s:",
- sp->sp_namp ? sp->sp_namp : "",
- sp->sp_pwdp ? sp->sp_pwdp : "");
-
-#define SHADOW_FIELD(n) \
- if (sp->n == -1) \
- putchar_unlocked (':'); \
- else \
- printf ("%ld:", sp->n)
-
- SHADOW_FIELD (sp_lstchg);
- SHADOW_FIELD (sp_min);
- SHADOW_FIELD (sp_max);
- SHADOW_FIELD (sp_warn);
- SHADOW_FIELD (sp_inact);
- SHADOW_FIELD (sp_expire);
- if (sp->sp_flag == ~0ul)
- putchar_unlocked ('\n');
- else
- printf ("%lu\n", sp->sp_flag);
+ if (putspent (sp, stdout) != 0)
+ fprintf (stderr, "error writing shadow entry: %m\n");
}
static int
D(networks)
D(passwd)
D(protocols)
+#if HAVE_SUNRPC
D(rpc)
+#endif
D(services)
D(shadow)
#undef D
idn_flags = 0;
break;
+ case 'A':
+ addrconfig_flags = 0;
+ break;
+
default:
return ARGP_ERR_UNKNOWN;
}
projects / thirdparty / glibc.git / blobdiff