/* rpc.c - NSS lookup functions for rpc 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 sinlge rpc entry from the stream */ static nss_status_t read_rpcent( TFILE *fp,struct rpcent *result, char *buffer,size_t buflen,int *errnop) { int32_t tmpint32,tmp2int32,tmp3int32; size_t bufptr=0; READ_BUF_STRING(fp,result->r_name); READ_BUF_STRINGLIST(fp,result->r_aliases); READ_INT32(fp,result->r_number); return NSS_STATUS_SUCCESS; } #ifdef NSS_FLAVOUR_GLIBC /* get a rpc entry by name */ nss_status_t _nss_ldap_getrpcbyname_r( const char *name,struct rpcent *result, char *buffer,size_t buflen,int *errnop) { NSS_BYNAME(NSLCD_ACTION_RPC_BYNAME, name, read_rpcent(fp,result,buffer,buflen,errnop)); } /* get a rpc entry by number */ nss_status_t _nss_ldap_getrpcbynumber_r( int number,struct rpcent *result, char *buffer,size_t buflen,int *errnop) { NSS_BYINT32(NSLCD_ACTION_RPC_BYNUMBER, number, read_rpcent(fp,result,buffer,buflen,errnop)); } /* thread-local file pointer to an ongoing request */ static __thread TFILE *rpcentfp; /* request a stream to list all rpc entries */ nss_status_t _nss_ldap_setrpcent(int UNUSED(stayopen)) { NSS_SETENT(rpcentfp); } /* get an rpc entry from the list */ nss_status_t _nss_ldap_getrpcent_r( struct rpcent *result, char *buffer,size_t buflen,int *errnop) { NSS_GETENT(rpcentfp,NSLCD_ACTION_RPC_ALL, read_rpcent(rpcentfp,result,buffer,buflen,errnop)); } /* close the stream opened by setrpcent() above */ nss_status_t _nss_ldap_endrpcent(void) { NSS_ENDENT(rpcentfp); } #endif /* NSS_FLAVOUR_GLIBC */ #ifdef NSS_FLAVOUR_SOLARIS static nss_status_t read_rpcstring(TFILE *fp,nss_XbyY_args_t *args) { struct rpcent result; nss_status_t retv; char *buffer; size_t buflen; int i; /* read the rpcent */ retv=read_rpcent(fp,&result,NSS_ARGS(args)->buf.buffer,args->buf.buflen,&errno); if (retv!=NSS_STATUS_SUCCESS) return retv; /* allocate a temporary buffer */ buflen=args->buf.buflen; buffer=(char *)malloc(buflen); /* build the formatted string */ /* FIXME: implement proper buffer size checking */ sprintf(buffer,"%s %d",result.r_name,result.r_number); if (result.r_aliases) for (i=0; result.r_aliases[i]; i++) { strcat(buffer," "); strcat(buffer,result.r_aliases[i]); } /* copy the result back to the result buffer and free the temporary one */ strcpy(NSS_ARGS(args)->buf.buffer,buffer); free(buffer); NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.buffer; NSS_ARGS(args)->returnlen=strlen(NSS_ARGS(args)->buf.buffer); return NSS_STATUS_SUCCESS; } #define READ_RESULT(fp) \ NSS_ARGS(args)->buf.result? \ read_rpcent(fp,(struct rpcent *)NSS_ARGS(args)->buf.result,NSS_ARGS(args)->buf.buffer,NSS_ARGS(args)->buf.buflen,&errno): \ read_rpcstring(fp,args); \ if (NSS_ARGS(args)->buf.result) \ NSS_ARGS(args)->returnval=NSS_ARGS(args)->buf.result static nss_status_t get_getrpcbyname_r(nss_backend_t UNUSED(*be),void *args) { NSS_BYNAME(NSLCD_ACTION_RPC_BYNAME, NSS_ARGS(args)->key.name, READ_RESULT(fp)); } static nss_status_t get_getrpcbynumber_r(nss_backend_t UNUSED(*be),void *args) { NSS_BYINT32(NSLCD_ACTION_RPC_BYNUMBER, NSS_ARGS(args)->key.number, READ_RESULT(fp)); } /* thread-local file pointer to an ongoing request */ static __thread TFILE *rpcentfp; static nss_status_t get_setrpcent(nss_backend_t UNUSED(*be),void UNUSED(*args)) { NSS_SETENT(rpcentfp); } static nss_status_t get_getrpcent_r(nss_backend_t UNUSED(*be),void *args) { NSS_GETENT(rpcentfp,NSLCD_ACTION_RPC_ALL, READ_RESULT(rpcentfp)); } static nss_status_t get_endrpcent(nss_backend_t UNUSED(*be),void UNUSED(*args)) { NSS_ENDENT(rpcentfp); } static nss_status_t destructor(nss_backend_t *be,void UNUSED(*args)) { free(be); return NSS_STATUS_SUCCESS; } static nss_backend_op_t rpc_ops[]={ destructor, get_endrpcent, get_setrpcent, get_getrpcent_r, get_getrpcbyname_r, get_getrpcbynumber_r }; nss_backend_t *_nss_ldap_rpc_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=rpc_ops; be->n_ops=sizeof(rpc_ops)/sizeof(nss_backend_op_t); return (nss_backend_t *)be; } #endif /* NSS_FLAVOUR_SOLARIS */