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/**
* Copyright 2011 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Author: Nikki VonHollen <vonhollen@gmail.com>
*/
#include "netgroup.h"
#include <netdb.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#define INNETGR_CHECK(match, value) if (match && value && strcmp(match, value)) continue;
/** Private static data. */
static struct netgroup *global_netgroup_head = NULL;
static struct netgroup_iter global_iter;
/** Public methods */
// REMEMBER: 1 means success, 0 means failure for netgroup methods
int setnetgrent(const char *netgroup) {
if (!global_netgroup_head)
global_netgroup_head = netgroup_parse_all();
struct netgroup *group = netgroup_find(global_netgroup_head, netgroup);
if (!group) {
netgroup_free_all(global_netgroup_head);
global_netgroup_head = NULL;
return 0;
}
netgroup_iter_init(&global_iter, group);
return 1;
}
void endnetgrent(void) {
netgroup_free_all(global_netgroup_head);
global_netgroup_head = NULL;
}
int getnetgrent(char **host, char **user, char **domain) {
if (!global_netgroup_head)
return 0;
struct entry *result = netgroup_iter_next(&global_iter);
if (!result)
return 0;
*host = result->data.triple.hostname;
*user = result->data.triple.username;
*domain = result->data.triple.domainname;
return 1;
}
int innetgr(const char *netgroup, const char *host, const char *user,
const char *domain) {
int retval = 0;
struct netgroup *head = netgroup_parse_all();
struct netgroup *group = netgroup_find(head, netgroup);
if (!group) {
// Can't find group
netgroup_free_all(head);
return 0;
}
struct netgroup_iter iter;
netgroup_iter_init(&iter, group);
struct entry *cur;
while ((cur = netgroup_iter_next(&iter))) {
INNETGR_CHECK(host, cur->data.triple.hostname);
INNETGR_CHECK(user, cur->data.triple.username);
INNETGR_CHECK(domain, cur->data.triple.domainname);
// No INNETGR_CHECK failed, so we matched!
retval = 1;
break;
}
netgroup_free_all(head);
return retval;
}
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