int rpc_reg(const rpcprog_t prognum, const rpcvers_t versnum, const rpcproc_t procnum, char *(*progname)(), const xdrproc_t inproc, const xdrproc_t outproc, const char *nettype) { struct netconfig *nconf; int done = FALSE; void *handle; extern mutex_t proglst_lock; if (procnum == NULLPROC) { (void) syslog(LOG_ERR, (const char *) "%s: %s %d", rpc_reg_msg, (const char *) "can't reassign procedure number %d", NULLPROC); return (-1); } if (nettype == NULL) nettype = "netpath"; /* The default behavior */ if ((handle = __rpc_setconf((char *)nettype)) == NULL) { (void) syslog(LOG_ERR, rpc_reg_err, rpc_reg_msg, __reg_err1); return (-1); } /* VARIABLES PROTECTED BY proglst_lock: proglst */ (void) mutex_lock(&proglst_lock); while (nconf = __rpc_getconf(handle)) { struct proglst *pl; SVCXPRT *svcxprt; int madenow; uint_t recvsz; char *xdrbuf; char *netid; madenow = FALSE; svcxprt = NULL; for (pl = proglst; pl; pl = pl->p_nxt) if (strcmp(pl->p_netid, nconf->nc_netid) == 0) { svcxprt = pl->p_transp; xdrbuf = pl->p_xdrbuf; recvsz = pl->p_recvsz; netid = pl->p_netid; break; } if (svcxprt == NULL) { struct t_info tinfo; svcxprt = svc_tli_create(RPC_ANYFD, nconf, NULL, 0, 0); if (svcxprt == NULL) continue; if (t_getinfo(svcxprt->xp_fd, &tinfo) == -1) { char errorstr[100]; __tli_sys_strerror(errorstr, sizeof (errorstr), t_errno, errno); (void) syslog(LOG_ERR, "%s : %s : %s", rpc_reg_msg, "t_getinfo failed", errorstr); SVC_DESTROY(svcxprt); continue; } if ((recvsz = __rpc_get_t_size(0, tinfo.tsdu)) == 0) { (void) syslog(LOG_ERR, rpc_reg_err, rpc_reg_msg, __reg_err3); SVC_DESTROY(svcxprt); continue; } if (((xdrbuf = malloc((unsigned)recvsz)) == NULL) || ((netid = strdup(nconf->nc_netid)) == NULL)) { (void) syslog(LOG_ERR, rpc_reg_err, rpc_reg_msg, __no_mem_str); SVC_DESTROY(svcxprt); break; } madenow = TRUE; } /* * Check if this (program, version, netid) had already been * registered. The check may save a few RPC calls to rpcbind */ for (pl = proglst; pl; pl = pl->p_nxt) if ((pl->p_prognum == prognum) && (pl->p_versnum == versnum) && (strcmp(pl->p_netid, netid) == 0)) break; if (pl == NULL) { /* Not yet */ /* * Note that if we're using a portmapper * instead of rpcbind then we can't do an * unregister operation here. * * The reason is that the portmapper unset * operation removes all the entries for a * given program/version regardelss of * transport protocol. * * The caller of this routine needs to ensure * that __pmap_unset() has been called for all * program/version service pairs they plan * to support before they start registering * each program/version/protocol triplet. */ if (!use_portmapper) (void) rpcb_unset(prognum, versnum, nconf); } else { /* so that svc_reg does not call rpcb_set() */ nconf = NULL; } if (!svc_reg(svcxprt, prognum, versnum, universal, nconf)) { (void) syslog(LOG_ERR, "%s couldn't register prog %d vers %d for %s", rpc_reg_msg, prognum, versnum, netid); if (madenow) { SVC_DESTROY(svcxprt); free(xdrbuf); free(netid); } continue; } pl = malloc(sizeof (struct proglst)); if (pl == NULL) { (void) syslog(LOG_ERR, rpc_reg_err, rpc_reg_msg, __no_mem_str); if (madenow) { SVC_DESTROY(svcxprt); free(xdrbuf); free(netid); } break; } pl->p_progname = progname; pl->p_prognum = prognum; pl->p_versnum = versnum; pl->p_procnum = procnum; pl->p_inproc = inproc; pl->p_outproc = outproc; pl->p_transp = svcxprt; pl->p_xdrbuf = xdrbuf; pl->p_recvsz = recvsz; pl->p_netid = netid; pl->p_nxt = proglst; proglst = pl; done = TRUE; } __rpc_endconf(handle); (void) mutex_unlock(&proglst_lock); if (done == FALSE) { (void) syslog(LOG_ERR, (const char *) "%s cant find suitable transport for %s", rpc_reg_msg, nettype); return (-1); } return (0); }
/* * This the routine has the same definition as clnt_create(), * except it takes an additional timeout parameter - a pointer to * a timeval structure. A NULL value for the pointer indicates * that the default timeout value should be used. * * This function calls clnt_tp_create_timed(). */ CLIENT * clnt_create_timed(const char *hostname, rpcprog_t prog, rpcvers_t vers, const char *netclass, const struct timeval *tp) { struct netconfig *nconf; CLIENT *clnt = NULL; void *handle; enum clnt_stat save_cf_stat = RPC_SUCCESS; struct rpc_err save_cf_error; char nettype_array[NETIDLEN]; char *nettype = &nettype_array[0]; if (netclass == NULL) nettype = NULL; else { size_t len = strlen(netclass); if (len >= sizeof (nettype_array)) { rpc_createerr.cf_stat = RPC_UNKNOWNPROTO; return (NULL); } strcpy(nettype, netclass); } if ((handle = __rpc_setconf((char *)nettype)) == NULL) { rpc_createerr.cf_stat = RPC_UNKNOWNPROTO; return (NULL); } rpc_createerr.cf_stat = RPC_SUCCESS; while (clnt == NULL) { if ((nconf = __rpc_getconf(handle)) == NULL) { if (rpc_createerr.cf_stat == RPC_SUCCESS) rpc_createerr.cf_stat = RPC_UNKNOWNPROTO; break; } #ifdef CLNT_DEBUG printf("trying netid %s\n", nconf->nc_netid); #endif clnt = clnt_tp_create_timed(hostname, prog, vers, nconf, tp); if (clnt) break; else { /* * Since we didn't get a name-to-address * translation failure here, we remember * this particular error. The object of * this is to enable us to return to the * caller a more-specific error than the * unhelpful ``Name to address translation * failed'' which might well occur if we * merely returned the last error (because * the local loopbacks are typically the * last ones in /etc/netconfig and the most * likely to be unable to translate a host * name). We also check for a more * meaningful error than ``unknown host * name'' for the same reasons. */ if (rpc_createerr.cf_stat != RPC_N2AXLATEFAILURE && rpc_createerr.cf_stat != RPC_UNKNOWNHOST) { save_cf_stat = rpc_createerr.cf_stat; save_cf_error = rpc_createerr.cf_error; } } } /* * Attempt to return an error more specific than ``Name to address * translation failed'' or ``unknown host name'' */ if ((rpc_createerr.cf_stat == RPC_N2AXLATEFAILURE || rpc_createerr.cf_stat == RPC_UNKNOWNHOST) && (save_cf_stat != RPC_SUCCESS)) { rpc_createerr.cf_stat = save_cf_stat; rpc_createerr.cf_error = save_cf_error; } __rpc_endconf(handle); return (clnt); }
/* * For simplified, easy to use kind of rpc interfaces. * nettype indicates the type of transport on which the service will be * listening. Used for conservation of the system resource. Only one * handle is created for all the services (actually one of each netid) * and same xdrbuf is used for same netid. The size of the arguments * is also limited by the recvsize for that transport, even if it is * a COTS transport. This may be wrong, but for cases like these, they * should not use the simplified interfaces like this. * * prognum - program number * versnum - version number * procnum - procedure number * progname - Server routine * inproc, outproc - in/out XDR procedures * nettype - nettype */ int rpc_reg(rpcprog_t prognum, rpcvers_t versnum, rpcproc_t procnum, char *(*progname)(char *), xdrproc_t inproc, xdrproc_t outproc, char *nettype) { struct netconfig *nconf; int done = FALSE; void *handle; if (procnum == NULLPROC) { warnx("%s can't reassign procedure number %u", rpc_reg_msg, NULLPROC); return (-1); } if (nettype == NULL) nettype = "netpath"; /* The default behavior */ if ((handle = __rpc_setconf(nettype)) == NULL) { warnx(rpc_reg_err, rpc_reg_msg, __reg_err1); return (-1); } /* VARIABLES PROTECTED BY proglst_lock: proglst */ mutex_lock(&proglst_lock); while ((nconf = __rpc_getconf(handle)) != NULL) { struct proglst *pl; SVCXPRT *svcxprt; int madenow; u_int recvsz; char *xdrbuf; char *netid; madenow = FALSE; svcxprt = NULL; recvsz = 0; xdrbuf = netid = NULL; for (pl = proglst; pl; pl = pl->p_nxt) { if (strcmp(pl->p_netid, nconf->nc_netid) == 0) { svcxprt = pl->p_transp; xdrbuf = pl->p_xdrbuf; recvsz = pl->p_recvsz; netid = pl->p_netid; break; } } if (svcxprt == NULL) { struct __rpc_sockinfo si; svcxprt = svc_tli_create(RPC_ANYFD, nconf, NULL, 0, 0); if (svcxprt == NULL) continue; if (!__rpc_fd2sockinfo(svcxprt->xp_fd, &si)) { warnx(rpc_reg_err, rpc_reg_msg, __reg_err2); SVC_DESTROY(svcxprt); continue; } recvsz = __rpc_get_t_size(si.si_af, si.si_proto, 0); if (recvsz == 0) { warnx(rpc_reg_err, rpc_reg_msg, __reg_err3); SVC_DESTROY(svcxprt); continue; } if (((xdrbuf = malloc((unsigned)recvsz)) == NULL) || ((netid = strdup(nconf->nc_netid)) == NULL)) { warnx(rpc_reg_err, rpc_reg_msg, __no_mem_str); free(xdrbuf); free(netid); SVC_DESTROY(svcxprt); break; } madenow = TRUE; } /* * Check if this (program, version, netid) had already been * registered. The check may save a few RPC calls to rpcbind */ for (pl = proglst; pl; pl = pl->p_nxt) if ((pl->p_prognum == prognum) && (pl->p_versnum == versnum) && (strcmp(pl->p_netid, netid) == 0)) break; if (pl == NULL) { /* Not yet */ (void) rpcb_unset(prognum, versnum, nconf); } else { /* so that svc_reg does not call rpcb_set() */ nconf = NULL; } if (!svc_reg(svcxprt, prognum, versnum, universal, nconf)) { warnx("%s couldn't register prog %u vers %u for %s", rpc_reg_msg, (unsigned)prognum, (unsigned)versnum, netid); if (madenow) { SVC_DESTROY(svcxprt); free(xdrbuf); free(netid); } continue; } pl = malloc(sizeof (struct proglst)); if (pl == NULL) { warnx(rpc_reg_err, rpc_reg_msg, __no_mem_str); if (madenow) { SVC_DESTROY(svcxprt); free(xdrbuf); free(netid); } break; } pl->p_progname = progname; pl->p_prognum = prognum; pl->p_versnum = versnum; pl->p_procnum = procnum; pl->p_inproc = inproc; pl->p_outproc = outproc; pl->p_transp = svcxprt; pl->p_xdrbuf = xdrbuf; pl->p_recvsz = recvsz; pl->p_netid = netid; pl->p_nxt = proglst; proglst = pl; done = TRUE; } __rpc_endconf(handle); mutex_unlock(&proglst_lock); if (done == FALSE) { warnx("%s can't find suitable transport for %s", rpc_reg_msg, nettype); return (-1); } return (0); }
/* * The highest level interface for server creation. * Copied from svc_generic.c and cmd/keyserv/key_generic.c, but adapted * to work only for TPI_CLTS semantics, and to be called only once * from kwarnd.c. Returns 1 (interface created) on success and 0 * (no interfaces created) on failure. */ int svc_create_local_service(void (*dispatch) (), /* Dispatch function */ u_long prognum, /* Program number */ u_long versnum, /* Version number */ char *nettype, /* Networktype token */ char *servname) /* name of the srvc */ { int num = 0; SVCXPRT *xprt; struct netconfig *nconf; struct t_bind *bind_addr; void *net; int fd; struct nd_hostserv ns; struct nd_addrlist *nas; if ((net = __rpc_setconf(nettype)) == 0) { (void) syslog(LOG_ERR, gettext("svc_create: could not read netconfig database")); return (0); } while (nconf = __rpc_getconf(net)) { if ((strcmp(nconf->nc_protofmly, NC_LOOPBACK)) || (nconf->nc_semantics != NC_TPI_COTS_ORD)) continue; if ((fd = t_open(nconf->nc_device, O_RDWR, NULL)) < 0) { (void) syslog(LOG_ERR, gettext("svc_create: %s: cannot open connection: %s"), nconf->nc_netid, t_errlist[t_errno]); break; } /* * Negotiate for returning the uid of the caller. * This should be done before enabling the endpoint for * service via t_bind() (called in svc_tli_create()) * so that requests to kwarnd contain the uid. */ if (__rpc_negotiate_uid(fd) != 0) { syslog(LOG_ERR, gettext("Could not negotiate for" " uid with loopback transport %s"), nconf->nc_netid); t_close(fd); break; } /* LINTED pointer alignment */ bind_addr = (struct t_bind *) t_alloc(fd, T_BIND, T_ADDR); if ((bind_addr == NULL)) { (void) t_close(fd); (void) syslog(LOG_ERR, gettext("svc_create: t_alloc failed\n")); break; } ns.h_host = HOST_SELF; ns.h_serv = servname; if (!netdir_getbyname(nconf, &ns, &nas)) { /* Copy the address */ bind_addr->addr.len = nas->n_addrs->len; (void) memcpy(bind_addr->addr.buf, nas->n_addrs->buf, (int) nas->n_addrs->len); bind_addr->qlen = 8; netdir_free((char *) nas, ND_ADDRLIST); } else { (void) syslog(LOG_ERR, gettext("svc_create: no well known " "address for %s on %s\n"), servname, nconf->nc_netid); (void) t_free((char *) bind_addr, T_BIND); bind_addr = NULL; } xprt = svc_tli_create(fd, nconf, bind_addr, 0, 0); if (bind_addr) (void) t_free((char *) bind_addr, T_BIND); if (xprt == NULL) { (void) t_close(fd); (void) syslog(LOG_ERR, gettext("svc_create: svc_tli_create failed\n")); break; } else { (void) rpcb_unset(prognum, versnum, nconf); if (svc_reg(xprt, prognum, versnum, dispatch, nconf) == FALSE) { (void) syslog(LOG_ERR, gettext("svc_create: cannot" " register %d vers %d on %s"), prognum, versnum, nconf->nc_netid); SVC_DESTROY(xprt); /* also t_closes fd */ break; } num = 1; break; } } __rpc_endconf(net); return (num); }
/* * rpc_broadcast_exp() * * prog - program number * vers - version number * proc - procedure number * xargs - xdr routine for args * argsp - pointer to args * xresults - xdr routine for results * resultsp - pointer to results * eachresult - call with each result obtained * inittime - how long to wait initially * waittime - maximum time to wait * nettype - transport type */ enum clnt_stat rpc_broadcast_exp(rpcprog_t prog, rpcvers_t vers, rpcproc_t proc, xdrproc_t xargs, caddr_t argsp, xdrproc_t xresults, caddr_t resultsp, resultproc_t eachresult, int inittime, int waittime, const char *nettype) { enum clnt_stat stat = RPC_SUCCESS; /* Return status */ XDR xdr_stream; /* XDR stream */ XDR *xdrs = &xdr_stream; struct rpc_msg msg; /* RPC message */ struct timeval t; char *outbuf = NULL; /* Broadcast msg buffer */ char *inbuf = NULL; /* Reply buf */ int inlen; u_int maxbufsize = 0; AUTH *sys_auth = authunix_create_default(); u_int i; void *handle; char uaddress[1024]; /* A self imposed limit */ char *uaddrp = uaddress; int pmap_reply_flag; /* reply recvd from PORTMAP */ /* An array of all the suitable broadcast transports */ struct { int fd; /* File descriptor */ int af; int proto; struct netconfig *nconf; /* Netconfig structure */ u_int asize; /* Size of the addr buf */ u_int dsize; /* Size of the data buf */ struct sockaddr_storage raddr; /* Remote address */ broadlist_t nal; } fdlist[MAXBCAST]; struct pollfd pfd[MAXBCAST]; size_t fdlistno = 0; struct r_rpcb_rmtcallargs barg; /* Remote arguments */ struct r_rpcb_rmtcallres bres; /* Remote results */ size_t outlen; struct netconfig *nconf; int msec; int pollretval; int fds_found; #ifdef PORTMAP size_t outlen_pmap = 0; u_long port; /* Remote port number */ int pmap_flag = 0; /* UDP exists ? */ char *outbuf_pmap = NULL; struct rmtcallargs barg_pmap; /* Remote arguments */ struct rmtcallres bres_pmap; /* Remote results */ u_int udpbufsz = 0; #endif /* PORTMAP */ if (sys_auth == NULL) { return (RPC_SYSTEMERROR); } /* * initialization: create a fd, a broadcast address, and send the * request on the broadcast transport. * Listen on all of them and on replies, call the user supplied * function. */ if (nettype == NULL) nettype = "datagram_n"; if ((handle = __rpc_setconf(nettype)) == NULL) { AUTH_DESTROY(sys_auth); return (RPC_UNKNOWNPROTO); } while ((nconf = __rpc_getconf(handle)) != NULL) { int fd; struct __rpc_sockinfo si; if (nconf->nc_semantics != NC_TPI_CLTS) continue; if (fdlistno >= MAXBCAST) break; /* No more slots available */ if (!__rpc_nconf2sockinfo(nconf, &si)) continue; TAILQ_INIT(&fdlist[fdlistno].nal); if (__rpc_getbroadifs(si.si_af, si.si_proto, si.si_socktype, &fdlist[fdlistno].nal) == 0) continue; fd = _socket(si.si_af, si.si_socktype, si.si_proto); if (fd < 0) { stat = RPC_CANTSEND; continue; } fdlist[fdlistno].af = si.si_af; fdlist[fdlistno].proto = si.si_proto; fdlist[fdlistno].fd = fd; fdlist[fdlistno].nconf = nconf; fdlist[fdlistno].asize = __rpc_get_a_size(si.si_af); pfd[fdlistno].events = POLLIN | POLLPRI | POLLRDNORM | POLLRDBAND; pfd[fdlistno].fd = fdlist[fdlistno].fd = fd; fdlist[fdlistno].dsize = __rpc_get_t_size(si.si_af, si.si_proto, 0); if (maxbufsize <= fdlist[fdlistno].dsize) maxbufsize = fdlist[fdlistno].dsize; #ifdef PORTMAP if (si.si_af == AF_INET && si.si_proto == IPPROTO_UDP) { udpbufsz = fdlist[fdlistno].dsize; if ((outbuf_pmap = malloc(udpbufsz)) == NULL) { _close(fd); stat = RPC_SYSTEMERROR; goto done_broad; } pmap_flag = 1; } #endif /* PORTMAP */ fdlistno++; } if (fdlistno == 0) { if (stat == RPC_SUCCESS) stat = RPC_UNKNOWNPROTO; goto done_broad; } if (maxbufsize == 0) { if (stat == RPC_SUCCESS) stat = RPC_CANTSEND; goto done_broad; } inbuf = malloc(maxbufsize); outbuf = malloc(maxbufsize); if ((inbuf == NULL) || (outbuf == NULL)) { stat = RPC_SYSTEMERROR; goto done_broad; } /* Serialize all the arguments which have to be sent */ (void) gettimeofday(&t, NULL); msg.rm_xid = __RPC_GETXID(&t); msg.rm_direction = CALL; msg.rm_call.cb_rpcvers = RPC_MSG_VERSION; msg.rm_call.cb_prog = RPCBPROG; msg.rm_call.cb_vers = RPCBVERS; msg.rm_call.cb_proc = RPCBPROC_CALLIT; barg.prog = prog; barg.vers = vers; barg.proc = proc; barg.args.args_val = argsp; barg.xdr_args = xargs; bres.addr = uaddrp; bres.results.results_val = resultsp; bres.xdr_res = xresults; msg.rm_call.cb_cred = sys_auth->ah_cred; msg.rm_call.cb_verf = sys_auth->ah_verf; xdrmem_create(xdrs, outbuf, maxbufsize, XDR_ENCODE); if ((!xdr_callmsg(xdrs, &msg)) || (!xdr_rpcb_rmtcallargs(xdrs, (struct rpcb_rmtcallargs *)(void *)&barg))) { stat = RPC_CANTENCODEARGS; goto done_broad; } outlen = xdr_getpos(xdrs); xdr_destroy(xdrs); #ifdef PORTMAP /* Prepare the packet for version 2 PORTMAP */ if (pmap_flag) { msg.rm_xid++; /* One way to distinguish */ msg.rm_call.cb_prog = PMAPPROG; msg.rm_call.cb_vers = PMAPVERS; msg.rm_call.cb_proc = PMAPPROC_CALLIT; barg_pmap.prog = prog; barg_pmap.vers = vers; barg_pmap.proc = proc; barg_pmap.args_ptr = argsp; barg_pmap.xdr_args = xargs; bres_pmap.port_ptr = &port; bres_pmap.xdr_results = xresults; bres_pmap.results_ptr = resultsp; xdrmem_create(xdrs, outbuf_pmap, udpbufsz, XDR_ENCODE); if ((! xdr_callmsg(xdrs, &msg)) || (! xdr_rmtcall_args(xdrs, &barg_pmap))) { stat = RPC_CANTENCODEARGS; goto done_broad; } outlen_pmap = xdr_getpos(xdrs); xdr_destroy(xdrs); } #endif /* PORTMAP */ /* * Basic loop: broadcast the packets to transports which * support data packets of size such that one can encode * all the arguments. * Wait a while for response(s). * The response timeout grows larger per iteration. */ for (msec = inittime; msec <= waittime; msec += msec) { struct broadif *bip; /* Broadcast all the packets now */ for (i = 0; i < fdlistno; i++) { if (fdlist[i].dsize < outlen) { stat = RPC_CANTSEND; continue; } for (bip = TAILQ_FIRST(&fdlist[i].nal); bip != NULL; bip = TAILQ_NEXT(bip, link)) { void *addr; addr = &bip->broadaddr; __rpc_broadenable(fdlist[i].af, fdlist[i].fd, bip); /* * Only use version 3 if lowvers is not set */ if (!__rpc_lowvers) if (_sendto(fdlist[i].fd, outbuf, outlen, 0, (struct sockaddr*)addr, (size_t)fdlist[i].asize) != outlen) { #ifdef RPC_DEBUG perror("sendto"); #endif warnx("clnt_bcast: cannot send " "broadcast packet"); stat = RPC_CANTSEND; continue; } #ifdef RPC_DEBUG if (!__rpc_lowvers) fprintf(stderr, "Broadcast packet sent " "for %s\n", fdlist[i].nconf->nc_netid); #endif #ifdef PORTMAP /* * Send the version 2 packet also * for UDP/IP */ if (pmap_flag && fdlist[i].proto == IPPROTO_UDP) { if (_sendto(fdlist[i].fd, outbuf_pmap, outlen_pmap, 0, addr, (size_t)fdlist[i].asize) != outlen_pmap) { warnx("clnt_bcast: " "Cannot send broadcast packet"); stat = RPC_CANTSEND; continue; } } #ifdef RPC_DEBUG fprintf(stderr, "PMAP Broadcast packet " "sent for %s\n", fdlist[i].nconf->nc_netid); #endif #endif /* PORTMAP */ } /* End for sending all packets on this transport */ } /* End for sending on all transports */ if (eachresult == NULL) { stat = RPC_SUCCESS; goto done_broad; } /* * Get all the replies from these broadcast requests */ recv_again: switch (pollretval = _poll(pfd, fdlistno, msec)) { case 0: /* timed out */ stat = RPC_TIMEDOUT; continue; case -1: /* some kind of error - we ignore it */ goto recv_again; } /* end of poll results switch */ for (i = fds_found = 0; i < fdlistno && fds_found < pollretval; i++) { bool_t done = FALSE; if (pfd[i].revents == 0) continue; else if (pfd[i].revents & POLLNVAL) { /* * Something bad has happened to this descri- * ptor. We can cause _poll() to ignore * it simply by using a negative fd. We do that * rather than compacting the pfd[] and fdlist[] * arrays. */ pfd[i].fd = -1; fds_found++; continue; } else fds_found++; #ifdef RPC_DEBUG fprintf(stderr, "response for %s\n", fdlist[i].nconf->nc_netid); #endif try_again: inlen = _recvfrom(fdlist[i].fd, inbuf, fdlist[i].dsize, 0, (struct sockaddr *)(void *)&fdlist[i].raddr, &fdlist[i].asize); if (inlen < 0) { if (errno == EINTR) goto try_again; warnx("clnt_bcast: Cannot receive reply to " "broadcast"); stat = RPC_CANTRECV; continue; } if (inlen < sizeof (u_int32_t)) continue; /* Drop that and go ahead */ /* * see if reply transaction id matches sent id. * If so, decode the results. If return id is xid + 1 * it was a PORTMAP reply */ if (*((u_int32_t *)(void *)(inbuf)) == *((u_int32_t *)(void *)(outbuf))) { pmap_reply_flag = 0; msg.acpted_rply.ar_verf = _null_auth; msg.acpted_rply.ar_results.where = (caddr_t)(void *)&bres; msg.acpted_rply.ar_results.proc = (xdrproc_t)xdr_rpcb_rmtcallres; #ifdef PORTMAP } else if (pmap_flag && *((u_int32_t *)(void *)(inbuf)) == *((u_int32_t *)(void *)(outbuf_pmap))) { pmap_reply_flag = 1; msg.acpted_rply.ar_verf = _null_auth; msg.acpted_rply.ar_results.where = (caddr_t)(void *)&bres_pmap; msg.acpted_rply.ar_results.proc = (xdrproc_t)xdr_rmtcallres; #endif /* PORTMAP */ } else continue; xdrmem_create(xdrs, inbuf, (u_int)inlen, XDR_DECODE); if (xdr_replymsg(xdrs, &msg)) { if ((msg.rm_reply.rp_stat == MSG_ACCEPTED) && (msg.acpted_rply.ar_stat == SUCCESS)) { struct netbuf taddr, *np; struct sockaddr_in *sin; #ifdef PORTMAP if (pmap_flag && pmap_reply_flag) { sin = (struct sockaddr_in *) (void *)&fdlist[i].raddr; sin->sin_port = htons((u_short)port); taddr.len = taddr.maxlen = fdlist[i].raddr.ss_len; taddr.buf = &fdlist[i].raddr; done = (*eachresult)(resultsp, &taddr, fdlist[i].nconf); } else { #endif /* PORTMAP */ #ifdef RPC_DEBUG fprintf(stderr, "uaddr %s\n", uaddrp); #endif np = uaddr2taddr( fdlist[i].nconf, uaddrp); done = (*eachresult)(resultsp, np, fdlist[i].nconf); free(np); #ifdef PORTMAP } #endif /* PORTMAP */ } /* otherwise, we just ignore the errors ... */ } /* else some kind of deserialization problem ... */ xdrs->x_op = XDR_FREE; msg.acpted_rply.ar_results.proc = (xdrproc_t) xdr_void; (void) xdr_replymsg(xdrs, &msg); (void) (*xresults)(xdrs, resultsp); XDR_DESTROY(xdrs); if (done) { stat = RPC_SUCCESS; goto done_broad; } else { goto recv_again; } } /* The recv for loop */ } /* The giant for loop */ done_broad: free(inbuf); free(outbuf); #ifdef PORTMAP free(outbuf_pmap); #endif /* PORTMAP */ for (i = 0; i < fdlistno; i++) { (void)_close(fdlist[i].fd); __rpc_freebroadifs(&fdlist[i].nal); } AUTH_DESTROY(sys_auth); (void) __rpc_endconf(handle); return (stat); }