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Diffstat (limited to 'nis/nss_nisplus/nisplus-network.c')
-rw-r--r--nis/nss_nisplus/nisplus-network.c340
1 files changed, 340 insertions, 0 deletions
diff --git a/nis/nss_nisplus/nisplus-network.c b/nis/nss_nisplus/nisplus-network.c
new file mode 100644
index 0000000000..28580b6bc9
--- /dev/null
+++ b/nis/nss_nisplus/nisplus-network.c
@@ -0,0 +1,340 @@
+/* Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
+
+ 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. */
+
+#include <nss.h>
+#include <netdb.h>
+#include <errno.h>
+#include <ctype.h>
+#include <string.h>
+#include <arpa/inet.h>
+#include <libc-lock.h>
+#include <rpcsvc/nis.h>
+#include <rpcsvc/nislib.h>
+
+#include "nss-nisplus.h"
+
+/* Get the declaration of the parser function. */
+#define ENTNAME netent
+#define DATABASE "networks"
+#define TRAILING_LIST_MEMBER n_aliases
+#define TRAILING_LIST_SEPARATOR_P isspace
+#include "../nss/nss_files/files-parse.c"
+LINE_PARSER
+("#",
+ {
+ char *addr;
+
+ STRING_FIELD (result->n_name, isspace, 1);
+
+ STRING_FIELD (addr, isspace, 1);
+ result->n_net = inet_network (addr);
+
+ })
+
+__libc_lock_define_initialized (static, lock)
+
+static nis_result *result = NULL;
+static nis_name *names = NULL;
+
+#define NISENTRYVAL(idx,col,res) \
+ ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
+
+#define NISENTRYLEN(idx,col,res) \
+ ((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
+
+
+static int
+_nss_nisplus_parse_netent (nis_result *result, struct netent *network,
+ char *buffer, size_t buflen)
+{
+ char *p = buffer;
+ size_t room_left = buflen;
+ int i;
+ struct parser_data *data = (void *) buffer;
+
+ if (result == NULL)
+ return -1;
+
+ if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) ||
+ result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ ||
+ strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
+ "networks_tbl") != 0 ||
+ result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 3)
+ return -1;
+
+ /* Generate the network entry format and use the normal parser */
+ if (NISENTRYLEN (0, 0, result) +1 > room_left)
+ {
+ __set_errno (ERANGE);
+ return -1;
+ }
+
+ memset (p, '\0', room_left);
+
+ strncpy (p, NISENTRYVAL (0, 0, result), NISENTRYLEN (0, 0, result));
+ room_left -= (NISENTRYLEN (0, 0, result) +1);
+
+ if (NISENTRYLEN (0, 2, result) +1 > room_left)
+ {
+ __set_errno (ERANGE);
+ return -1;
+ }
+ strcat (p, "\t");
+ strncat (p, NISENTRYVAL (0, 2, result), NISENTRYLEN (0, 2, result));
+ room_left -= (NISENTRYLEN (0, 2, result) + 1);
+ /* + 1: We overwrite the last \0 */
+
+ for (i = 1; i < result->objects.objects_len; i++)
+ /* XXX should we start with i = 0 or with i = 1 ? */
+ {
+ if (NISENTRYLEN (i, 1, result) +1 > room_left)
+ {
+ __set_errno (ERANGE);
+ return -1;
+ }
+ strcat (p, " ");
+ strncat (p, NISENTRYVAL (i, 1, result), NISENTRYLEN (i, 1, result));
+ room_left -= (NISENTRYLEN (i, 1, result) + 1);
+ }
+
+ return _nss_files_parse_netent (p, network, data, buflen);
+}
+
+enum nss_status
+_nss_nisplus_setnetent (void)
+{
+ __libc_lock_lock (lock);
+
+ if (result)
+ nis_freeresult (result);
+ result = NULL;
+ if (names)
+ {
+ nis_freenames (names);
+ names = NULL;
+ }
+
+ __libc_lock_unlock (lock);
+
+ return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nisplus_endnetent (void)
+{
+ __libc_lock_lock (lock);
+
+ if (result)
+ nis_freeresult (result);
+ result = NULL;
+ if (names)
+ {
+ nis_freenames (names);
+ names = NULL;
+ }
+
+ __libc_lock_unlock (lock);
+
+ return NSS_STATUS_SUCCESS;
+}
+
+static enum nss_status
+internal_nisplus_getnetent_r (struct netent *network, char *buffer,
+ size_t buflen, int *herrnop)
+{
+ int parse_res;
+
+ /* Get the next entry until we found a correct one. */
+ do
+ {
+ if (result == NULL)
+ {
+ names = nis_getnames("networks.org_dir");
+ if (names == NULL || names[0] == NULL)
+ return NSS_STATUS_UNAVAIL;
+
+ result = nis_first_entry(names[0]);
+ if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+ {
+ int retval;
+
+ retval = niserr2nss (result->status);
+ if (retval == NSS_STATUS_TRYAGAIN)
+ {
+ *herrnop = NETDB_INTERNAL;
+ __set_errno (EAGAIN);
+ }
+ return retval;
+ }
+ }
+ else
+ {
+ nis_result *res;
+
+ res = nis_next_entry(names[0], &result->cookie);
+ nis_freeresult (result);
+ result = res;
+ if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
+ {
+ int retval;
+
+ retval = niserr2nss (result->status);
+ if (retval == NSS_STATUS_TRYAGAIN)
+ {
+ *herrnop = NETDB_INTERNAL;
+ __set_errno (EAGAIN);
+ }
+ return retval;
+ }
+ }
+
+ parse_res = _nss_nisplus_parse_netent (result, network, buffer, buflen);
+ if (!parse_res && errno == ERANGE)
+ {
+ *herrnop = NETDB_INTERNAL;
+ return NSS_STATUS_TRYAGAIN;
+ }
+
+ } while (!parse_res);
+
+ return NSS_STATUS_SUCCESS;
+}
+
+enum nss_status
+_nss_nisplus_getnetent_r (struct netent *result, char *buffer,
+ size_t buflen, int *herrnop)
+{
+ int status;
+
+ __libc_lock_lock (lock);
+
+ status = internal_nisplus_getnetent_r (result, buffer, buflen, herrnop);
+
+ __libc_lock_unlock (lock);
+
+ return status;
+}
+
+enum nss_status
+_nss_nisplus_getnetbyname_r (const char *name, struct netent *network,
+ char *buffer, size_t buflen, int *herrnop)
+{
+ int parse_res, retval;
+
+ if (name == NULL)
+ {
+ __set_errno (EINVAL);
+ *herrnop = NETDB_INTERNAL;
+ return NSS_STATUS_UNAVAIL;
+ }
+ else
+ {
+ nis_result *result;
+ char buf[strlen (name) + 255];
+
+
+ /* Search at first in the alias list, and use the correct name
+ for the next search */
+ sprintf(buf, "[name=%s],networks.org_dir", name);
+ result = nis_list(buf, EXPAND_NAME, NULL, NULL);
+
+ /* If we do not find it, try it as original name. But if the
+ database is correct, we should find it in the first case, too */
+ if ((result->status != NIS_SUCCESS &&
+ result->status != NIS_S_SUCCESS) ||
+ result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ ||
+ strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
+ "networks_tbl") != 0 ||
+ result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 3)
+ sprintf(buf, "[cname=%s],networks.org_dir", name);
+ else
+ sprintf(buf, "[cname=%s],networks.org_dir", NISENTRYVAL(0, 0, result));
+
+ nis_freeresult (result);
+ result = nis_list(buf, EXPAND_NAME, NULL, NULL);
+
+ retval = niserr2nss (result->status);
+ if (retval != NSS_STATUS_SUCCESS)
+ {
+ if (retval == NSS_STATUS_TRYAGAIN)
+ {
+ __set_errno (EAGAIN);
+ *herrnop = NETDB_INTERNAL;
+ }
+ nis_freeresult (result);
+ return retval;
+ }
+
+ parse_res = _nss_nisplus_parse_netent (result, network, buffer, buflen);
+
+ nis_freeresult (result);
+
+ if (parse_res)
+ return NSS_STATUS_SUCCESS;
+
+ *herrnop = NETDB_INTERNAL;
+ if (!parse_res && errno == ERANGE)
+ return NSS_STATUS_TRYAGAIN;
+ else
+ return NSS_STATUS_NOTFOUND;
+ }
+}
+
+/* XXX type is ignored, SUN's NIS+ table doesn't support it */
+enum nss_status
+_nss_nisplus_getnetbyaddr_r (const unsigned long addr, const int type,
+ struct netent *network,
+ char *buffer, size_t buflen, int *herrnop)
+{
+ int parse_res, retval;
+ nis_result *result;
+ char buf[1024];
+ struct in_addr in;
+
+ in = inet_makeaddr (addr, 0);
+ snprintf(buf, sizeof (buf) - 1, "[addr=%s],networks.org_dir",
+ inet_ntoa (in));
+
+ result = nis_list(buf, EXPAND_NAME, NULL, NULL);
+
+ retval = niserr2nss (result->status);
+ if (retval != NSS_STATUS_SUCCESS)
+ {
+ if (retval == NSS_STATUS_TRYAGAIN)
+ {
+ __set_errno (EAGAIN);
+ *herrnop = NETDB_INTERNAL;
+ }
+ nis_freeresult (result);
+ return retval;
+ }
+
+ parse_res = _nss_nisplus_parse_netent (result, network, buffer, buflen);
+
+ nis_freeresult (result);
+
+ if (parse_res)
+ return NSS_STATUS_SUCCESS;
+
+ *herrnop = NETDB_INTERNAL;
+ if (!parse_res && errno == ERANGE)
+ return NSS_STATUS_TRYAGAIN;
+ else
+ return NSS_STATUS_NOTFOUND;
+}
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