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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
* Copyright 2011 Nexenta Systems, Inc. All rights reserved.
*/
#include <stdlib.h>
#include <libintl.h>
#include <stdio.h>
#include <errno.h>
#include <strings.h>
#include "ns_sldap.h"
#include "ns_internal.h"
/*
* getldaplaliasbyname() retrieves the aliases information from the LDAP server.
* This is requires that the LDAP naming information (ie. LDAP_CLIENT_CACHE
* file) is configured properly on the client machine.
*
* Return value:
* 0 = success;
* 1 = alias not found;
* -1 = other failure. Contents in answer are undefined.
*/
#define ALIAS_FILTER "(&(objectclass=mailgroup)(|(cn=%s)(mail=%s)))"
#define ALIAS_FILTER_SSD "(&(%%s)(|(cn=%s)(mail=%s)))"
#define MAIL_CN "cn"
#define MAIL_ATTRIBUTE "mail"
#define MAIL_MEMBER "mgrpRFC822MailMember"
/*
* This is a generic filter call back function for
* merging the filter from service search descriptor with
* an existing search filter. This routine expects userdata
* contain a format string with a single %s in it, and will
* use the format string with sprintf() to insert the SSD filter.
*
* This routine is passed to the __ns_ldap_list() API as the
* filter call back together with filter and userdata. For example,
* "(&(objectclass=mailgroup)(|(cn=abc)(mail=abc)))" as filter
* and "(&(%s)(|(cn=abc)(mail=abc)))" as userdata.
* This routine will then be called by __ns_ldap_list() to output
* "(&(dept=sds)(|(cn=abc)(mail=abc)))" as the real search
* filter, if the input SSD contains a filter "dpet=sds".
*/
int
__s_api_merge_SSD_filter(const ns_ldap_search_desc_t *desc,
char **realfilter,
const void *userdata)
{
int len;
char *checker;
/* sanity check */
if (realfilter == NULL)
return (NS_LDAP_INVALID_PARAM);
*realfilter = NULL;
if (desc == NULL || desc->filter == NULL || userdata == NULL)
return (NS_LDAP_INVALID_PARAM);
/* Parameter check. We only want one %s here, otherwise bail. */
len = 0; /* Reuse 'len' as "Number of %s hits"... */
checker = (char *)userdata;
do {
checker = strchr(checker, '%');
if (checker != NULL) {
if (len > 0 || *(checker + 1) != 's')
return (NS_LDAP_INVALID_PARAM);
len++; /* Got our %s. */
checker += 2;
} else if (len != 1)
return (NS_LDAP_INVALID_PARAM);
} while (checker != NULL);
len = strlen(userdata) + strlen(desc->filter) + 1;
*realfilter = (char *)malloc(len);
if (*realfilter == NULL)
return (NS_LDAP_MEMORY);
(void) sprintf(*realfilter, (char *)userdata, desc->filter);
return (NS_LDAP_SUCCESS);
}
char *
__getldapaliasbyname(char *alias, int *retval)
{
char *service = "aliases";
char filter[BUFSIZE];
char userdata[BUFSIZE];
char *attribute[2];
ns_ldap_result_t *result = NULL;
ns_ldap_error_t *errorp = NULL;
int rc, i, j, len, comma;
ns_ldap_entry_t *entry = NULL;
char **attr_value = NULL;
char *answer, *new_answer;
size_t ans_size = BUFSIZE;
if (!alias || !*alias) {
errno = EINVAL;
*retval = -1;
return (NULL);
}
answer = malloc(ans_size);
if (answer == NULL) {
errno = ENOMEM;
*retval = -1;
return (NULL);
}
answer[0] = '\0';
/* get the aliases */
if (snprintf(filter, sizeof (filter), ALIAS_FILTER, alias, alias) < 0) {
errno = EINVAL;
*retval = -1;
return (NULL);
}
/* get the userdata for __ns_ldap_list filter call back */
if (snprintf(userdata, sizeof (userdata), ALIAS_FILTER_SSD,
alias, alias) < 0) {
errno = EINVAL;
*retval = -1;
return (NULL);
}
attribute[0] = MAIL_MEMBER;
attribute[1] = NULL;
/* should we do hardlookup */
rc = __ns_ldap_list(service, (const char *)filter,
__s_api_merge_SSD_filter,
(const char **)attribute, NULL, 0, &result,
&errorp, NULL, userdata);
if (rc == NS_LDAP_NOTFOUND) {
errno = ENOENT;
*retval = 1;
return (NULL);
} else if (rc != NS_LDAP_SUCCESS) {
#ifdef DEBUG
char *p;
(void) __ns_ldap_err2str(rc, &p);
if (errorp) {
if (errorp->message)
(void) fprintf(stderr, "%s (%s)\n", p,
errorp->message);
} else
(void) fprintf(stderr, "%s\n", p);
#endif /* DEBUG */
(void) __ns_ldap_freeError(&errorp);
*retval = -1;
return (NULL);
}
/* build the return value */
answer[0] = '\0';
len = 0;
comma = 0;
entry = result->entry;
for (i = 0; i < result->entries_count; i++) {
attr_value = __ns_ldap_getAttr(entry, MAIL_MEMBER);
if (attr_value == NULL) {
errno = ENOENT;
*retval = -1;
return (NULL);
}
for (j = 0; attr_value[j]; j++) {
char *tmp, *newhead;
tmp = attr_value[j];
while (*tmp == ' ' || *tmp == '\t' && *tmp != '\0')
tmp++;
newhead = tmp;
while (*tmp != '\0') tmp++;
while (*tmp == ' ' || *tmp == '\t' || *tmp == '\0' &&
tmp != newhead) {
*tmp-- = '\0';
}
len = len + comma + strlen(newhead);
if ((len + 1) > ans_size) {
ans_size += BUFSIZE;
new_answer = realloc(answer, ans_size);
if (new_answer == NULL) {
(void) __ns_ldap_freeResult(&result);
errno = ENOMEM;
*retval = -1;
free(answer);
return (NULL);
}
answer = new_answer;
}
if (comma)
(void) strcat(answer, ",");
else
comma = 1;
(void) strcat(answer, newhead);
}
}
(void) __ns_ldap_freeResult(&result);
errno = 0;
*retval = 0;
return (answer);
}
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