/* service.c - NSS lookup functions for services 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 services result entry from the stream */ static nss_status_t read_servent( TFILE *fp,struct servent *result, char *buffer,size_t buflen,int *errnop) { int32_t tmpint32,tmp2int32,tmp3int32; size_t bufptr=0; READ_BUF_STRING(fp,result->s_name); READ_BUF_STRINGLIST(fp,result->s_aliases); /* store port number in network byte order */ READ_TYPE(fp,tmpint32,int32_t); result->s_port=htons((uint16_t)tmpint32); READ_BUF_STRING(fp,result->s_proto); /* we're done */ return NSS_STATUS_SUCCESS; } #ifdef NSS_FLAVOUR_GLIBC /* get a service entry by name and protocol */ nss_status_t _nss_ldap_getservbyname_r( const char *name,const char *protocol,struct servent *result, char *buffer,size_t buflen,int *errnop) { NSS_BYGEN(NSLCD_ACTION_SERVICE_BYNAME,buffer,buflen, WRITE_STRING(fp,name);WRITE_STRING(fp,protocol), read_servent(fp,result,buffer,buflen,errnop)); return retv; } /* get a service entry by port and protocol */ nss_status_t _nss_ldap_getservbyport_r( int port,const char *protocol,struct servent *result, char *buffer,size_t buflen,int *errnop) { NSS_BYGEN(NSLCD_ACTION_SERVICE_BYNUMBER,buffer,buflen, WRITE_INT32(fp,ntohs(port));WRITE_STRING(fp,protocol), read_servent(fp,result,buffer,buflen,errnop)); return retv; } /* thread-local file pointer to an ongoing request */ static __thread TFILE *serventfp; /* open request to get all services */ nss_status_t _nss_ldap_setservent(int UNUSED(stayopen)) { NSS_SETENT(serventfp); } /* read a single returned service definition */ nss_status_t _nss_ldap_getservent_r( struct servent *result, char *buffer,size_t buflen,int *errnop) { NSS_GETENT(serventfp,NSLCD_ACTION_SERVICE_ALL,buffer,buflen, read_servent(serventfp,result,buffer,buflen,errnop)); return retv; } /* close the stream opened by setservent() above */ nss_status_t _nss_ldap_endservent(void) { NSS_ENDENT(serventfp); } #endif /* NSS_FLAVOUR_GLIBC */ #ifdef NSS_FLAVOUR_SOLARIS static nss_status_t _nss_nslcd_getservbyname_r( const char *name,const char *protocol,struct servent *result, char *buffer,size_t buflen,int *errnop) { NSS_BYGEN(NSLCD_ACTION_SERVICE_BYNAME,buffer,buflen, WRITE_STRING(fp,name);WRITE_STRING(fp,protocol), read_servent(fp,result,buffer,buflen,errnop)); return retv; } static nss_status_t _nss_nslcd_getservbyport_r( int port,const char *protocol,struct servent *result, char *buffer,size_t buflen,int *errnop) { NSS_BYGEN(NSLCD_ACTION_SERVICE_BYNUMBER,buffer,buflen, WRITE_INT32(fp,ntohs(port));WRITE_STRING(fp,protocol), read_servent(fp,result,buffer,buflen,errnop)); return retv; } /* thread-local file pointer to an ongoing request */ static __thread TFILE *serventfp; static nss_status_t _xnss_ldap_setservent(nss_backend_t UNUSED(*be),void UNUSED(*args)) { NSS_SETENT(serventfp); } static nss_status_t _nss_nslcd_getservent_r( struct servent *result,char *buffer,size_t buflen,int *errnop) { NSS_GETENT(serventfp,NSLCD_ACTION_SERVICE_ALL,buffer,buflen, read_servent(serventfp,result,buffer,buflen,errnop)); return retv; } static nss_status_t _xnss_ldap_endservent(nss_backend_t UNUSED(*be),void UNUSED(*args)) { NSS_ENDENT(serventfp); } static nss_status_t _xnss_ldap_getservbyname_r(nss_backend_t UNUSED(*be),void *args) { struct servent priv_service; struct servent *service=NSS_ARGS(args)->buf.result?(struct servent *)NSS_ARGS(args)->buf.result:&priv_service; char *buffer=NSS_ARGS(args)->buf.buffer; size_t buflen=NSS_ARGS(args)->buf.buflen; char *data_ptr; nss_status_t status; status=_nss_nslcd_getservbyname_r(NSS_ARGS(args)->key.serv.serv.name,NSS_ARGS(args)->key.serv.proto,service, 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 %d/%s",service->s_name,service->s_port, service->s_proto); if (service->s_aliases) { int i; for (i=0; service->s_aliases[i]; i++) { strcat(data_ptr," "); strcat(data_ptr,service->s_aliases[i]); } } 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_getservbyport_r(nss_backend_t UNUSED(*be),void *args) { int port=NSS_ARGS(args)->key.serv.serv.port; struct servent priv_service; struct servent *service=NSS_ARGS(args)->buf.result?(struct servent *)NSS_ARGS(args)->buf.result:&priv_service; char *buffer=NSS_ARGS(args)->buf.buffer; size_t buflen=NSS_ARGS(args)->buf.buflen; char *data_ptr; nss_status_t status; status=_nss_nslcd_getservbyport_r(port,NSS_ARGS(args)->key.serv.proto,service,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 %d/%s",service->s_name,port, service->s_proto); if (service->s_aliases) { int i; for (i=0; service->s_aliases[i]; i++) { strcat(data_ptr," "); strcat(data_ptr,service->s_aliases[i]); } } 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_getservent_r(nss_backend_t UNUSED(*be),void *args) { struct servent priv_service; struct servent *service=NSS_ARGS(args)->buf.result?(struct servent *)NSS_ARGS(args)->buf.result:&priv_service; char *buffer=NSS_ARGS(args)->buf.buffer; size_t buflen=NSS_ARGS(args)->buf.buflen; char *data_ptr; nss_status_t status; status=_nss_nslcd_getservent_r(service,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 %d/%s",service->s_name,service->s_port, service->s_proto); if (service->s_aliases) { int i; for (i=0; service->s_aliases[i]; i++) { strcat(data_ptr," "); strcat(data_ptr,service->s_aliases[i]); } } 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_services_destr(nss_backend_t *be,void UNUSED(*args)) { free(be); return NSS_STATUS_SUCCESS; } static nss_backend_op_t services_ops[]={ _xnss_ldap_services_destr, _xnss_ldap_endservent, _xnss_ldap_setservent, _xnss_ldap_getservent_r, _xnss_ldap_getservbyname_r, _xnss_ldap_getservbyport_r }; nss_backend_t *_nss_ldap_services_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=services_ops; be->n_ops=sizeof(services_ops)/sizeof(nss_backend_op_t); return (nss_backend_t *)be; } #endif /* NSS_FLAVOUR_SOLARIS */