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/*
common.c - common functions for NSS lookups
Copyright (C) 2006 West Consulting
Copyright (C) 2006, 2007 Arthur de Jong
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include "config.h"
#include <stdint.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <nss.h>
#include "nslcd.h"
#include "common.h"
#include "common/tio.h"
/* translates a nsklcd return code (as defined in nslcd.h) to
a nss code (as defined in nss.h) */
enum nss_status nslcd2nss(int32_t code)
{
switch (code)
{
case NSLCD_RESULT_UNAVAIL: return NSS_STATUS_UNAVAIL;
case NSLCD_RESULT_NOTFOUND: return NSS_STATUS_NOTFOUND;
case NSLCD_RESULT_SUCCESS: return NSS_STATUS_SUCCESS;
default: return NSS_STATUS_UNAVAIL;
}
}
/* returns a socket to the server or NULL on error (see errno),
socket should be closed with fclose() */
TFILE *nslcd_client_open()
{
int sock;
struct sockaddr_un addr;
struct timeval readtimeout,writetimeout;
TFILE *fp;
/* create a socket */
if ( (sock=socket(PF_UNIX,SOCK_STREAM,0))<0 )
return NULL;
/* create socket address structure */
addr.sun_family=AF_UNIX;
strcpy(addr.sun_path,NSLCD_SOCKET);
/* connect to the socket */
if (connect(sock,(struct sockaddr *)&addr,(socklen_t)sizeof(struct sockaddr_un))<0)
{
(void)close(sock);
return NULL;
}
/* set the timeouts */
readtimeout.tv_sec=2; /* looking up stuff may take some time */
readtimeout.tv_usec=0;
writetimeout.tv_sec=1; /* nslcd could be loaded with requests */
writetimeout.tv_usec=500000;
/* create a stream object */
if ((fp=tio_fdopen(sock,&readtimeout,&writetimeout))==NULL)
{
(void)close(sock);
return NULL;
}
/* return the stream */
return fp;
}
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