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/*
shadow.c - NSS lookup functions for shadow database
Copyright (C) 2006 West Consulting
Copyright (C) 2006, 2007, 2008, 2010 Arthur de Jong
Copyright (C) 2010 Symas Corporation
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 <string.h>
#include <errno.h>
#include "prototypes.h"
#include "common.h"
#include "compat/attrs.h"
static nss_status_t read_spwd(
TFILE *fp,struct spwd *result,
char *buffer,size_t buflen,int *errnop)
{
int32_t tmpint32;
size_t bufptr=0;
READ_BUF_STRING(fp,result->sp_namp);
READ_BUF_STRING(fp,result->sp_pwdp);
READ_INT32(fp,result->sp_lstchg);
READ_INT32(fp,result->sp_min);
READ_INT32(fp,result->sp_max);
READ_INT32(fp,result->sp_warn);
READ_INT32(fp,result->sp_inact);
READ_INT32(fp,result->sp_expire);
READ_INT32(fp,result->sp_flag);
return NSS_STATUS_SUCCESS;
}
#ifdef HAVE_NSSWITCH_H
nss_status_t _nss_nslcd_getspnam_r(
#else /* not HAVE_NSSWITCH_H */
nss_status_t _nss_ldap_getspnam_r(
#endif /* HAVE_NSSWITCH_H */
const char *name,struct spwd *result,char *buffer,
size_t buflen,int *errnop)
{
NSS_BYNAME(NSLCD_ACTION_SHADOW_BYNAME,
name,
read_spwd(fp,result,buffer,buflen,errnop));
}
/* thread-local file pointer to an ongoing request */
static __thread TFILE *spentfp;
#ifdef HAVE_NSSWITCH_H
nss_status_t _nss_ldap_setspent(nss_backend_t *be,void *args)
#else /* not HAVE_NSSWITCH_H */
nss_status_t _nss_ldap_setspent(int UNUSED(stayopen))
#endif /* HAVE_NSSWITCH_H */
{
NSS_SETENT(spentfp);
}
#ifdef HAVE_NSSWITCH_H
nss_status_t _nss_nslcd_getspent_r(
#else /* not HAVE_NSSWITCH_H */
nss_status_t _nss_ldap_getspent_r(
#endif /* HAVE_NSSWITCH_H */
struct spwd *result,char *buffer,size_t buflen,int *errnop)
{
NSS_GETENT(spentfp,NSLCD_ACTION_SHADOW_ALL,
read_spwd(spentfp,result,buffer,buflen,errnop));
}
#ifdef HAVE_NSSWITCH_H
nss_status_t _nss_ldap_endspent(nss_backend_t *sp_context,void *args)
#else /* not HAVE_NSSWITCH_H */
nss_status_t _nss_ldap_endspent(void)
#endif /* HAVE_NSSWITCH_H */
{
NSS_ENDENT(spentfp);
}
#ifdef HAVE_NSSWITCH_H
static nss_status_t _nss_ldap_getspnam_r(nss_backend_t *be,void *args)
{
struct spwd priv_spwd;
struct spwd *sp=NSS_ARGS(args)->buf.result?(struct spwd *)NSS_ARGS(args)->buf.result:&priv_spwd;
char *buffer=NSS_ARGS(args)->buf.buffer;
size_t buflen=NSS_ARGS(args)->buf.buflen;
char *name=(char *)NSS_ARGS(args)->key.name;
char *data_ptr;
nss_status_t status;
if (NSS_ARGS(args)->buf.buflen < 0)
{
NSS_ARGS(args)->erange=1;
return NSS_STATUS_TRYAGAIN;
}
status=_nss_nslcd_getspnam_r(name,sp,buffer,buflen,&errno);
if (status!=NSS_STATUS_SUCCESS)
return status;
if (!NSS_ARGS(args)->buf.result)
{
/* result==NULL, return file format */
data_ptr=(char *)malloc(buflen);
char field_buf[128];
sprintf(data_ptr,"%s:%s:",sp->sp_namp,sp->sp_pwdp);
if (sp->sp_lstchg >= 0)
sprintf(field_buf,"%d:",sp->sp_lstchg);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_min >= 0)
sprintf(field_buf,"%d:",sp->sp_min);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_max >= 0)
sprintf(field_buf,"%d:",sp->sp_max);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_warn >= 0)
sprintf(field_buf,"%d:",sp->sp_warn);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_inact >= 0)
sprintf(field_buf,"%d:",sp->sp_inact);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_expire >= 0)
sprintf(field_buf,"%d:",sp->sp_expire);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_flag >= 0)
sprintf(field_buf,"%x",sp->sp_flag);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
strcpy(buffer,data_ptr);
free(data_ptr);
NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.buffer;
NSS_ARGS(args)->returnlen=strlen(NSS_ARGS(args)->buf.buffer);
}
else
{
NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.result;
}
return status;
}
static nss_status_t _nss_ldap_getspent_r(nss_backend_t *sp_context,void *args)
{
struct spwd priv_spwd;
struct spwd *sp=NSS_ARGS(args)->buf.result?(struct spwd *)NSS_ARGS(args)->buf.result:&priv_spwd;
char *buffer=NSS_ARGS(args)->buf.buffer;
size_t buflen=NSS_ARGS(args)->buf.buflen;
char *data_ptr;
nss_status_t status;
if (NSS_ARGS(args)->buf.buflen < 0)
{
NSS_ARGS(args)->erange=1;
return NSS_STATUS_TRYAGAIN;
}
status=_nss_nslcd_getspent_r(sp,buffer,buflen,&errno);
if (status!=NSS_STATUS_SUCCESS)
return status;
if (!NSS_ARGS(args)->buf.result)
{
/* result==NULL, return file format */
data_ptr=(char *)malloc(buflen);
char field_buf[128];
sprintf(data_ptr,"%s:%s:",sp->sp_namp,sp->sp_pwdp);
if (sp->sp_lstchg >= 0)
sprintf(field_buf,"%d:",sp->sp_lstchg);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_min >= 0)
sprintf(field_buf,"%d:",sp->sp_min);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_max >= 0)
sprintf(field_buf,"%d:",sp->sp_max);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_warn >= 0)
sprintf(field_buf,"%d:",sp->sp_warn);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_inact >= 0)
sprintf(field_buf,"%d:",sp->sp_inact);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_expire >= 0)
sprintf(field_buf,"%d:",sp->sp_expire);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
if (sp->sp_flag >= 0)
sprintf(field_buf,"%x",sp->sp_flag);
else
sprintf(field_buf,":");
strcat(data_ptr,field_buf);
strcpy(buffer,data_ptr);
free(data_ptr);
NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.buffer;
NSS_ARGS(args)->returnlen=strlen(NSS_ARGS(args)->buf.buffer);
}
else
{
NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.result;
}
return status;
}
static nss_status_t _nss_ldap_shadow_destr(nss_backend_t *sp_context,void *args)
{
return _nss_ldap_default_destr(sp_context,args);
}
static nss_backend_op_t shadow_ops[]={
_nss_ldap_shadow_destr,
_nss_ldap_endspent, /* NSS_DBOP_ENDENT */
_nss_ldap_setspent, /* NSS_DBOP_SETENT */
_nss_ldap_getspent_r, /* NSS_DBOP_GETENT */
_nss_ldap_getspnam_r /* NSS_DBOP_SHADOW_BYNAME */
};
nss_backend_t *_nss_ldap_shadow_constr(const char *db_name,
const char *src_name,const char *cfg_args)
{
nss_ldap_backend_t *be;
if (!(be=(nss_ldap_backend_t *)malloc(sizeof(*be))))
return NULL;
be->ops=shadow_ops;
be->n_ops=sizeof(shadow_ops)/sizeof(nss_backend_op_t);
if (_nss_ldap_default_constr(be)!=NSS_STATUS_SUCCESS)
return NULL;
return (nss_backend_t *)be;
}
#endif /* HAVE_NSSWITCH_H */
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