285 lines
7.5 KiB
C
285 lines
7.5 KiB
C
/* Copyright (C) 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <nss.h>
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#include <errno.h>
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#include <ctype.h>
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#include <string.h>
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#include <libc-lock.h>
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#include <rpc/netdb.h>
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#include <rpcsvc/nis.h>
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#include <rpcsvc/nislib.h>
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#include "nss-nisplus.h"
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__libc_lock_define_initialized (static, lock)
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static nis_result *result = NULL;
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static nis_name *names = NULL;
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#define ENTNAME rpcent
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#define DATABASE "rpc"
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#define TRAILING_LIST_MEMBER r_aliases
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#define TRAILING_LIST_SEPARATOR_P isspace
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#include "../../nss/nss_files/files-parse.c"
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LINE_PARSER
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("#",
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STRING_FIELD (result->r_name, isspace, 1);
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INT_FIELD (result->r_number, isspace, 1, 10,);
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)
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#define NISENTRYVAL(idx,col,res) \
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((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_val)
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#define NISENTRYLEN(idx,col,res) \
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((res)->objects.objects_val[(idx)].zo_data.objdata_u.en_data.en_cols.en_cols_val[(col)].ec_value.ec_value_len)
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static int
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_nss_nisplus_parse_rpcent (nis_result *result, struct rpcent *rpc,
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char *buffer, size_t buflen)
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{
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char *p = buffer;
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size_t room_left = buflen;
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int i;
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struct parser_data *data = (void *) buffer;
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if (result == NULL)
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return -1;
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if ((result->status != NIS_SUCCESS && result->status != NIS_S_SUCCESS) ||
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result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ ||
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strcmp(result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
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"rpc_tbl") != 0 ||
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result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 3)
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return -1;
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memset (p, '\0', room_left);
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/* Generate the rpc entry format and use the normal parser */
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if (NISENTRYLEN (0, 0, result) +1 > room_left)
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{
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__set_errno (ERANGE);
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return -1;
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}
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strncpy (p, NISENTRYVAL (0, 0, result), NISENTRYLEN (0, 0, result));
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room_left -= (NISENTRYLEN (0, 0, result) +1);
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if (NISENTRYLEN (0, 2, result) +1 > room_left)
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{
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__set_errno (ERANGE);
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return -1;
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}
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strcat (p, "\t");
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strncat (p, NISENTRYVAL (0, 2, result), NISENTRYLEN (0, 2, result));
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room_left -= (NISENTRYLEN (0, 2, result) + 1);
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/* + 1: We overwrite the last \0 */
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for (i = 0; i < result->objects.objects_len; i++)
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/* XXX should we start with i = 0 or with i = 1 ? */
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{
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if (NISENTRYLEN (i, 1, result) +1 > room_left)
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{
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__set_errno (ERANGE);
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return -1;
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}
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strcat (p, " ");
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strncat (p, NISENTRYVAL (i, 1, result), NISENTRYLEN (i, 1, result));
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room_left -= (NISENTRYLEN (i, 1, result) + 1);
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}
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return _nss_files_parse_rpcent (p, rpc, data, buflen);
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}
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enum nss_status
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_nss_nisplus_setrpcent (void)
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{
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__libc_lock_lock (lock);
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if (result)
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nis_freeresult (result);
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result = NULL;
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if (names)
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{
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nis_freenames (names);
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names = NULL;
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}
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__libc_lock_unlock (lock);
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return NSS_STATUS_SUCCESS;
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}
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enum nss_status
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_nss_nisplus_endrpcent (void)
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{
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__libc_lock_lock (lock);
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if (result)
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nis_freeresult (result);
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result = NULL;
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if (names)
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{
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nis_freenames (names);
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names = NULL;
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}
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__libc_lock_unlock (lock);
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return NSS_STATUS_SUCCESS;
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}
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static enum nss_status
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internal_nisplus_getrpcent_r (struct rpcent *rpc, char *buffer,
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size_t buflen)
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{
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int parse_res;
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/* Get the next entry until we found a correct one. */
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do
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{
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if (result == NULL)
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{
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names = nis_getnames ("rpc.org_dir");
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if (names == NULL || names[0] == NULL)
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return NSS_STATUS_UNAVAIL;
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result = nis_first_entry(names[0]);
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if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
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return niserr2nss (result->status);
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}
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else
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{
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nis_result *res;
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res = nis_next_entry (names[0], &result->cookie);
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nis_freeresult (result);
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result = res;
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if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
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return niserr2nss (result->status);
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}
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parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen);
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} while (!parse_res);
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return NSS_STATUS_SUCCESS;
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}
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enum nss_status
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_nss_nisplus_getrpcent_r (struct rpcent *result, char *buffer,
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size_t buflen)
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{
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int status;
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__libc_lock_lock (lock);
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status = internal_nisplus_getrpcent_r (result, buffer, buflen);
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__libc_lock_unlock (lock);
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return status;
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}
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enum nss_status
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_nss_nisplus_getrpcbyname_r (const char *name, struct rpcent *rpc,
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char *buffer, size_t buflen)
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{
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int parse_res;
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if (name == NULL)
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return NSS_STATUS_NOTFOUND;
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else
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{
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nis_result *result;
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char buf[strlen (name) + 255];
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/* Search at first in the alias list, and use the correct name
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for the next search */
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sprintf (buf, "[name=%s],rpc.org_dir", name);
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result = nis_list (buf, EXPAND_NAME, NULL, NULL);
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/* If we do not find it, try it as original name. But if the
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database is correct, we should find it in the first case, too */
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if ((result->status != NIS_SUCCESS &&
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result->status != NIS_S_SUCCESS) ||
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result->objects.objects_val[0].zo_data.zo_type != ENTRY_OBJ ||
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strcmp (result->objects.objects_val[0].zo_data.objdata_u.en_data.en_type,
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"rpc_tbl") != 0 ||
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result->objects.objects_val[0].zo_data.objdata_u.en_data.en_cols.en_cols_len < 3)
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sprintf (buf, "[cname=%s],rpc.org_dir", name);
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else
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sprintf (buf, "[cname=%s],rpc.org_dir", NISENTRYVAL(0, 0, result));
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nis_freeresult (result);
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result = nis_list(buf, EXPAND_NAME, NULL, NULL);
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if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
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{
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enum nss_status status = niserr2nss (result->status);
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nis_freeresult (result);
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return status;
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}
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parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen);
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nis_freeresult (result);
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if (parse_res)
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return NSS_STATUS_SUCCESS;
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if (!parse_res && errno == ERANGE)
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return NSS_STATUS_TRYAGAIN;
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else
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return NSS_STATUS_NOTFOUND;
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}
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}
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enum nss_status
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_nss_nisplus_getrpcbynumber_r (const int number, struct rpcent *rpc,
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char *buffer, size_t buflen)
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{
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int parse_res;
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nis_result *result;
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char buf[100];
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snprintf (buf, sizeof (buf), "[number=%d],rpc.org_dir", number);
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result = nis_list(buf, EXPAND_NAME, NULL, NULL);
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if (niserr2nss (result->status) != NSS_STATUS_SUCCESS)
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{
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enum nss_status status = niserr2nss (result->status);
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nis_freeresult (result);
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return status;
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}
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parse_res = _nss_nisplus_parse_rpcent (result, rpc, buffer, buflen);
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nis_freeresult (result);
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if (parse_res)
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return NSS_STATUS_SUCCESS;
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if (!parse_res && errno == ERANGE)
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return NSS_STATUS_TRYAGAIN;
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else
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return NSS_STATUS_NOTFOUND;
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}
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