/* 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 #include #include "prototypes.h" #include "common.h" #include "compat/attrs.h" /* read a single shadow entry from the stream */ 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 NSS_FLAVOUR_GLIBC /* get a shadow entry by name */ nss_status_t _nss_ldap_getspnam_r( const char *name,struct spwd *result, char *buffer,size_t buflen,int *errnop) { NSS_BYNAME(NSLCD_ACTION_SHADOW_BYNAME,buffer,buflen, name, read_spwd(fp,result,buffer,buflen,errnop)); return retv; } /* thread-local file pointer to an ongoing request */ static __thread TFILE *spentfp; /* start listing all shadow users */ nss_status_t _nss_ldap_setspent(int UNUSED(stayopen)) { NSS_SETENT(spentfp); } /* return a single shadow entry read from the stream */ nss_status_t _nss_ldap_getspent_r( struct spwd *result, char *buffer,size_t buflen,int *errnop) { NSS_GETENT(spentfp,NSLCD_ACTION_SHADOW_ALL,buffer,buflen, read_spwd(spentfp,result,buffer,buflen,errnop)); return retv; } /* close the stream opened by setspent() above */ nss_status_t _nss_ldap_endspent(void) { NSS_ENDENT(spentfp); } #endif /* NSS_FLAVOUR_GLIBC */ #ifdef NSS_FLAVOUR_SOLARIS static nss_status_t _nss_nslcd_getspnam_r( const char *name,struct spwd *result,char *buffer, size_t buflen,int *errnop) { NSS_BYNAME(NSLCD_ACTION_SHADOW_BYNAME,buffer,buflen, name, read_spwd(fp,result,buffer,buflen,errnop)); return retv; } static nss_status_t _xnss_ldap_getspnam_r(nss_backend_t UNUSED(*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 *data_ptr; char field_buf[128]; 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(NSS_ARGS(args)->key.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); 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; } /* thread-local file pointer to an ongoing request */ static __thread TFILE *spentfp; static nss_status_t _xnss_ldap_setspent(nss_backend_t UNUSED(*be),void UNUSED(*args)) { NSS_SETENT(spentfp); } static nss_status_t _nss_nslcd_getspent_r( struct spwd *result,char *buffer,size_t buflen,int *errnop) { NSS_GETENT(spentfp,NSLCD_ACTION_SHADOW_ALL,buffer,buflen, read_spwd(spentfp,result,buffer,buflen,errnop)); return retv; } static nss_status_t _xnss_ldap_getspent_r(nss_backend_t UNUSED(*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 *data_ptr; char field_buf[128]; 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); 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 _xnss_ldap_endspent(nss_backend_t UNUSED(*be),void UNUSED(*args)) { NSS_ENDENT(spentfp); } static nss_status_t _xnss_ldap_shadow_destr(nss_backend_t *be,void UNUSED(*args)) { free(be); return NSS_STATUS_SUCCESS; } static nss_backend_op_t shadow_ops[]={ _xnss_ldap_shadow_destr, _xnss_ldap_endspent, /* NSS_DBOP_ENDENT */ _xnss_ldap_setspent, /* NSS_DBOP_SETENT */ _xnss_ldap_getspent_r, /* NSS_DBOP_GETENT */ _xnss_ldap_getspnam_r /* NSS_DBOP_SHADOW_BYNAME */ }; nss_backend_t *_nss_ldap_shadow_constr(const char UNUSED(*db_name), const char UNUSED(*src_name),const char UNUSED(*cfg_args)) { nss_backend_t *be; if (!(be=(nss_backend_t *)malloc(sizeof(*be)))) return NULL; be->ops=shadow_ops; be->n_ops=sizeof(shadow_ops)/sizeof(nss_backend_op_t); return (nss_backend_t *)be; } #endif /* NSS_FLAVOUR_SOLARIS */