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124 lines
3.7 KiB
C
124 lines
3.7 KiB
C
/*
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netgroup.c - NSS lookup functions for netgroup entries
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Copyright (C) 2006 West Consulting
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Copyright (C) 2006, 2007, 2008 Arthur de Jong
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <string.h>
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#include <nss.h>
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#include <errno.h>
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#include "prototypes.h"
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#include "common.h"
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#include "compat/attrs.h"
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/* we redefine this here because we need to return NSS_STATUS_RETURN
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instead of NSS_STATUS_NOTFOUND */
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#undef ERROR_OUT_NOSUCCESS
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#define ERROR_OUT_NOSUCCESS(fp,retv) \
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(void)tio_close(fp); \
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fp=NULL; \
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return NSS_STATUS_RETURN;
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/* function for reading a single result entry */
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static enum nss_status read_netgrent(
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TFILE *fp,struct __netgrent *result,
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char *buffer,size_t buflen,int *errnop)
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{
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int32_t tmpint32;
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int type;
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size_t bufptr=0;
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/* read netgroup type */
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READ_INT32(fp,type);
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if (type==NETGROUP_TYPE_NETGROUP)
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{
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/* the response is a reference to another netgroup */
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result->type=group_val;
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READ_STRING_BUF(fp,result->val.group);
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}
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else if (type==NETGROUP_TYPE_TRIPLE)
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{
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/* the response is a host/user/domain triple */
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result->type=triple_val;
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/* read host and revert to NULL on empty string */
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READ_STRING_BUF(fp,result->val.triple.host);
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if (result->val.triple.host[0]=='\0')
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{
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result->val.triple.host=NULL;
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bufptr--; /* free unused space */
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}
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/* read user and revert to NULL on empty string */
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READ_STRING_BUF(fp,result->val.triple.user);
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if (result->val.triple.user[0]=='\0')
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{
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result->val.triple.user=NULL;
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bufptr--; /* free unused space */
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}
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/* read domain and revert to NULL on empty string */
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READ_STRING_BUF(fp,result->val.triple.domain);
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if (result->val.triple.domain[0]=='\0')
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{
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result->val.triple.domain=NULL;
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bufptr--; /* free unused space */
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}
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}
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else
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return NSS_STATUS_UNAVAIL;
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/* we're done */
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return NSS_STATUS_SUCCESS;
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}
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/* thread-local file pointer to an ongoing request */
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static __thread TFILE *netgrentfp;
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enum nss_status _nss_ldap_setnetgrent(const char *group,struct __netgrent UNUSED(*result))
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{
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/* we cannot use NSS_SETENT() here because we have a parameter that is only
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available in this function */
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int32_t tmpint32;
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int errnocp;
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int *errnop;
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errnop=&errnocp;
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/* check parameter */
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if ((group==NULL)||(group[0]=='\0'))
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return NSS_STATUS_UNAVAIL;
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/* open a new stream and write the request */
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OPEN_SOCK(netgrentfp);
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WRITE_REQUEST(netgrentfp,NSLCD_ACTION_NETGROUP_BYNAME);
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WRITE_STRING(netgrentfp,group);
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WRITE_FLUSH(netgrentfp);
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/* read response header */
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READ_RESPONSEHEADER(netgrentfp,NSLCD_ACTION_NETGROUP_BYNAME);
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return NSS_STATUS_SUCCESS;
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}
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enum nss_status _nss_ldap_getnetgrent_r(struct __netgrent *result,char *buffer,size_t buflen,int *errnop)
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{
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NSS_GETENT(netgrentfp,NSLCD_ACTION_NETGROUP_BYNAME,
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read_netgrent(netgrentfp,result,buffer,buflen,errnop));
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}
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enum nss_status _nss_ldap_endnetgrent(struct __netgrent UNUSED(* result))
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{
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NSS_ENDENT(netgrentfp);
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}
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