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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 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* nisplus/getservent.c -- NIS+ backend for nsswitch "serv" database
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <string.h>
#include <netdb.h>
#include <stdlib.h>
#include "nisplus_common.h"
#include "nisplus_tables.h"
static nss_status_t
getbyname(be, a)
nisplus_backend_ptr_t be;
void *a;
{
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
/*
* Don't have to do anything for case-insensitivity; the NIS+ table
* has the right flags enabled in the 'cname' and 'name' columns.
*
* Make sure that nis_object2str would cull out only those entries
* with the given protocol if it is non-NULL, or the first one it
* finds in the nis_object if user supplied proto is NULL.
*/
return (_nss_nisplus_lookup(be, argp, SERV_TAG_NAME,
argp->key.serv.serv.name));
}
static nss_status_t
getbyport(be, a)
nisplus_backend_ptr_t be;
void *a;
{
nss_XbyY_args_t *argp = (nss_XbyY_args_t *)a;
char portstr[12];
/*
* Make sure that nis_object2str would cull out only those entries
* with the given protocol if it is non-NULL, or the first one it
* finds in the nis_object if user supplied proto is NULL.
*/
(void) snprintf(portstr, 12, "%d",
ntohs((ushort_t)argp->key.serv.serv.port));
return (_nss_nisplus_lookup(be, argp, SERV_TAG_PORT, portstr));
}
/*
* Convert nisplus object into files format
* Returns NSS_STR_PARSE_{SUCCESS, ERANGE, PARSE}
*/
static int
nis_object2str(nobj, obj, be, argp)
int nobj;
nis_object *obj;
nisplus_backend_ptr_t be;
nss_XbyY_args_t *argp;
{
char *buffer, *linep, *limit;
char *cname, *port, *proto, *endnum;
int buflen, cnamelen, portlen, protolen;
const char *protokey = NULL;
int protokeylen = 0, stat;
struct entry_col *ecol;
/*
* For getent request, we don't want to set protokey
* and protokeylen, since argp->key.serv.proto won't
* be initialized.
*/
if (be->table_path == NULL) {
protokey = argp->key.serv.proto;
protokeylen = (protokey) ? strlen(protokey) : 0;
}
for (; nobj > 0; obj++, nobj--) {
if (obj->zo_data.zo_type != NIS_ENTRY_OBJ ||
obj->EN_data.en_cols.en_cols_len < SERV_COL) {
/* namespace/table/object is curdled */
return (NSS_STR_PARSE_PARSE);
}
ecol = obj->EN_data.en_cols.en_cols_val;
/* protocol */
__NISPLUS_GETCOL_OR_RETURN(ecol, SERV_NDX_PROTO,
protolen, proto);
if (protokey != NULL) {
if (protolen != protokeylen ||
strncasecmp(proto, protokey, protolen) != 0)
continue;
}
/*
* If the caller does not care about a specific protocol
* (udp or tcp usually), pick the one from the first nis_object
* and parse all the entries associated with only this protocol.
* NULL proto is also specified by getservent() functions. We
* end up doing extraneous work in the case.
*/
break;
}
if (nobj <= 0)
return (NSS_STR_PARSE_PARSE);
buflen = argp->buf.buflen;
buffer = argp->buf.buffer;
(void) memset(buffer, 0, buflen);
/* cname */
__NISPLUS_GETCOL_OR_RETURN(ecol, SERV_NDX_CNAME, cnamelen, cname);
/* port */
__NISPLUS_GETCOL_OR_RETURN(ecol, SERV_NDX_PORT, portlen, port);
(void) strtol(port, &endnum, 10);
if (*endnum != 0 || endnum == port)
return (NSS_STR_PARSE_PARSE);
if (cnamelen + portlen + protolen + 3 > buflen)
return (NSS_STR_PARSE_ERANGE);
(void) snprintf(buffer, buflen, "%s %s/%s", cname, port, proto);
linep = buffer + cnamelen + portlen + protolen + 2;
limit = buffer + buflen;
stat = nis_aliases_object2str(obj, nobj, cname, proto, linep, limit);
if (stat != NSS_STR_PARSE_SUCCESS)
return (stat);
if (argp->buf.result != NULL) {
/*
* Some front end marshallers may require the
* files formatted data in a distinct buffer
*/
if ((be->buffer = strdup(buffer)) == NULL)
return (NSS_STR_PARSE_PARSE);
be->buflen = strlen(buffer);
buffer = be->buffer;
}
#ifdef DEBUG
(void) fprintf(stdout, "services [%s]\n", buffer);
(void) fflush(stdout);
#endif /* DEBUG */
return (NSS_STR_PARSE_SUCCESS);
}
static nisplus_backend_op_t serv_ops[] = {
_nss_nisplus_destr,
_nss_nisplus_endent,
_nss_nisplus_setent,
_nss_nisplus_getent,
getbyname,
getbyport
};
/*ARGSUSED*/
nss_backend_t *
_nss_nisplus_services_constr(dummy1, dummy2, dummy3)
const char *dummy1, *dummy2, *dummy3;
{
return (_nss_nisplus_constr(serv_ops,
sizeof (serv_ops) / sizeof (serv_ops[0]),
SERV_TBLNAME, nis_object2str));
}
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