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-rw-r--r--src/clnt_bcast.c698
1 files changed, 698 insertions, 0 deletions
diff --git a/src/clnt_bcast.c b/src/clnt_bcast.c
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+++ b/src/clnt_bcast.c
@@ -0,0 +1,698 @@
+/*
+ * Copyright (c) 2009, Sun Microsystems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * - Neither the name of Sun Microsystems, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+/*
+ * Copyright (c) 1986-1991 by Sun Microsystems Inc.
+ */
+
+/*
+ * clnt_bcast.c
+ * Client interface to broadcast service.
+ *
+ * Copyright (C) 1988, Sun Microsystems, Inc.
+ *
+ * The following is kludged-up support for simple rpc broadcasts.
+ * Someday a large, complicated system will replace these routines.
+ */
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/queue.h>
+
+#include <net/if.h>
+#include <netinet/in.h>
+#include <ifaddrs.h>
+#include <poll.h>
+#include <rpc/rpc.h>
+#ifdef PORTMAP
+#include <rpc/pmap_prot.h>
+#include <rpc/pmap_clnt.h>
+#include <rpc/pmap_rmt.h>
+#endif /* PORTMAP */
+#include <rpc/nettype.h>
+#include <arpa/inet.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <netdb.h>
+#include <err.h>
+#include <string.h>
+
+#include "rpc_com.h"
+#include "debug.h"
+
+#define MAXBCAST 20 /* Max no of broadcasting transports */
+#define INITTIME 4000 /* Time to wait initially */
+#define WAITTIME 8000 /* Maximum time to wait */
+
+# define POLLRDNORM 0x040 /* Normal data may be read. */
+# define POLLRDBAND 0x080 /* Priority data may be read. */
+
+
+
+/*
+ * If nettype is NULL, it broadcasts on all the available
+ * datagram_n transports. May potentially lead to broadacst storms
+ * and hence should be used with caution, care and courage.
+ *
+ * The current parameter xdr packet size is limited by the max tsdu
+ * size of the transport. If the max tsdu size of any transport is
+ * smaller than the parameter xdr packet, then broadcast is not
+ * sent on that transport.
+ *
+ * Also, the packet size should be less the packet size of
+ * the data link layer (for ethernet it is 1400 bytes). There is
+ * no easy way to find out the max size of the data link layer and
+ * we are assuming that the args would be smaller than that.
+ *
+ * The result size has to be smaller than the transport tsdu size.
+ *
+ * If PORTMAP has been defined, we send two packets for UDP, one for
+ * rpcbind and one for portmap. For those machines which support
+ * both rpcbind and portmap, it will cause them to reply twice, and
+ * also here it will get two responses ... inefficient and clumsy.
+ */
+
+#define TAILQ_NEXT(elm, field) ((elm)->field.tqe_next)
+
+#define TAILQ_FIRST(head) ((head)->tqh_first)
+
+
+struct broadif {
+ int index;
+ struct sockaddr_storage broadaddr;
+ TAILQ_ENTRY(broadif) link;
+};
+
+typedef TAILQ_HEAD(, broadif) broadlist_t;
+
+int __rpc_getbroadifs(int, int, int, broadlist_t *);
+void __rpc_freebroadifs(broadlist_t *);
+int __rpc_broadenable(int, int, struct broadif *);
+
+int __rpc_lowvers = 0;
+
+int
+__rpc_getbroadifs(int af, int proto, int socktype, broadlist_t *list)
+{
+ int count = 0;
+ struct broadif *bip;
+ struct ifaddrs *ifap, *ifp;
+#ifdef INET6
+ struct sockaddr_in6 *sin6;
+#endif
+ struct sockaddr_in *sin;
+ struct addrinfo hints, *res;
+
+ if (getifaddrs(&ifp) < 0)
+ return 0;
+
+ memset(&hints, 0, sizeof hints);
+
+ hints.ai_family = af;
+ hints.ai_protocol = proto;
+ hints.ai_socktype = socktype;
+
+ if (getaddrinfo(NULL, "sunrpc", &hints, &res) != 0)
+ return 0;
+
+ for (ifap = ifp; ifap != NULL; ifap = ifap->ifa_next) {
+ if (ifap->ifa_addr == NULL || /* happens for eg tuntap devices */
+ ifap->ifa_addr->sa_family != af ||
+ !(ifap->ifa_flags & IFF_UP))
+ continue;
+ bip = (struct broadif *)malloc(sizeof *bip);
+ if (bip == NULL)
+ break;
+ bip->index = if_nametoindex(ifap->ifa_name);
+ if (
+#ifdef INET6
+ af != AF_INET6 &&
+#endif
+ (ifap->ifa_flags & IFF_BROADCAST) &&
+ ifap->ifa_broadaddr) {
+ /* memcpy(&bip->broadaddr, ifap->ifa_broadaddr,
+ (size_t)ifap->ifa_broadaddr->sa_len);*/
+ memcpy(&bip->broadaddr, ifap->ifa_broadaddr,
+ sizeof(bip->broadaddr));
+ sin = (struct sockaddr_in *)(void *)&bip->broadaddr;
+ sin->sin_port =
+ ((struct sockaddr_in *)
+ (void *)res->ai_addr)->sin_port;
+ } else
+#ifdef INET6
+ if (af == AF_INET6 && (ifap->ifa_flags & IFF_MULTICAST)) {
+ sin6 = (struct sockaddr_in6 *)(void *)&bip->broadaddr;
+ inet_pton(af, RPCB_MULTICAST_ADDR, &sin6->sin6_addr);
+ sin6->sin6_family = af;
+ sin6->sin6_port =
+ ((struct sockaddr_in6 *)
+ (void *)res->ai_addr)->sin6_port;
+ sin6->sin6_scope_id = bip->index;
+ } else
+#endif
+ {
+ free(bip);
+ continue;
+ }
+ TAILQ_INSERT_TAIL(list, bip, link);
+ count++;
+ }
+ freeifaddrs(ifp);
+ freeaddrinfo(res);
+
+ return count;
+}
+
+void
+__rpc_freebroadifs(broadlist_t *list)
+{
+ struct broadif *bip, *next;
+
+ bip = TAILQ_FIRST(list);
+
+ while (bip != NULL) {
+ next = TAILQ_NEXT(bip, link);
+ free(bip);
+ bip = next;
+ }
+}
+
+int
+/*ARGSUSED*/
+__rpc_broadenable(int af, int s, struct broadif *bip)
+{
+ int o = 1;
+
+#if 0
+ if (af == AF_INET6) {
+ fprintf(stderr, "set v6 multicast if to %d\n", bip->index);
+ if (setsockopt(s, IPPROTO_IPV6, IPV6_MULTICAST_IF, &bip->index,
+ sizeof bip->index) < 0)
+ return -1;
+ } else
+#endif
+ if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &o, sizeof o) < 0)
+ return -1;
+
+ return 0;
+}
+
+/*
+ * Some rpcbind implementations use an IPv6 socket to serve both
+ * IPv4 and IPv6 messages, but neglect to check for the caller's
+ * address family when sending broadcast replies. These rpcbind
+ * implementations return an IPv6 address in reply to an IPv4
+ * broadcast. We can either ignore them, or try to patch them up.
+ */
+static struct netbuf *
+__ipv6v4_fixup(struct sockaddr_storage *ss, const char *uaddr)
+{
+ struct sockaddr_in sin;
+ struct netbuf *np;
+
+ /* ss is the remote rpcbind server's address */
+ if (ss->ss_family != AF_INET)
+ return NULL;
+ memcpy(&sin, ss, sizeof(sin));
+
+ np = __rpc_uaddr2taddr_af(AF_INET6, uaddr);
+ if (np == NULL)
+ return NULL;
+
+ /* Overwrite the port with that of the service we
+ * wanted to talk to. */
+ sin.sin_port = ((struct sockaddr_in6 *) np)->sin6_port;
+
+ /* We know netbuf holds a sockaddr_in6, so it can easily
+ * hold a sockaddr_in as well. */
+ memcpy(np->buf, &sin, sizeof(sin));
+ np->len = sizeof(sin);
+
+ return np;
+}
+
+enum clnt_stat
+rpc_broadcast_exp(prog, vers, proc, xargs, argsp, xresults, resultsp,
+ eachresult, inittime, waittime, nettype)
+ rpcprog_t prog; /* program number */
+ rpcvers_t vers; /* version number */
+ rpcproc_t proc; /* procedure number */
+ xdrproc_t xargs; /* xdr routine for args */
+ caddr_t argsp; /* pointer to args */
+ xdrproc_t xresults; /* xdr routine for results */
+ caddr_t resultsp; /* pointer to results */
+ resultproc_t eachresult; /* call with each result obtained */
+ int inittime; /* how long to wait initially */
+ int waittime; /* maximum time to wait */
+ const char *nettype; /* transport type */
+{
+ 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();
+ 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) {
+ LIBTIRPC_DEBUG(1,
+ ("rpc_broadcast_exp: sendto failed: errno %d", errno));
+ warnx("rpc_broadcast_exp: cannot send broadcast packet");
+ stat = RPC_CANTSEND;
+ continue;
+ };
+ if (!__rpc_lowvers)
+ LIBTIRPC_DEBUG(3, ("rpc_broadcast_exp: Broadcast packet sent for %s\n",
+ fdlist[i].nconf->nc_netid));
+#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;
+ }
+ }
+ LIBTIRPC_DEBUG(3, ("rpc_broadcast_exp: PMAP Broadcast packet sent for %s\n",
+ fdlist[i].nconf->nc_netid));
+#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++;
+ LIBTIRPC_DEBUG(3, ("rpc_broadcast_exp: response for %s\n",
+ fdlist[i].nconf->nc_netid));
+ 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 *np;
+#ifdef PORTMAP
+ struct netbuf taddr;
+ struct sockaddr_in sin;
+
+ if (pmap_flag && pmap_reply_flag) {
+ memcpy(&sin, &fdlist[i].raddr, sizeof(sin));
+ sin.sin_port = htons((u_short)port);
+ memcpy(&fdlist[i].raddr, &sin, sizeof(sin));
+ taddr.len = taddr.maxlen =
+ sizeof(fdlist[i].raddr);
+ taddr.buf = &fdlist[i].raddr;
+ done = (*eachresult)(resultsp,
+ &taddr, fdlist[i].nconf);
+ } else {
+#endif /* PORTMAP */
+ LIBTIRPC_DEBUG(3, ("rpc_broadcast_exp: uaddr %s\n", uaddrp));
+ np = uaddr2taddr(
+ fdlist[i].nconf, uaddrp);
+ /* Some misguided rpcbind implemenations
+ * seem to return an IPv6 uaddr in IPv4
+ * responses. */
+ if (np == NULL)
+ np = __ipv6v4_fixup(
+ &fdlist[i].raddr,
+ uaddrp);
+ if (np != NULL) {
+ 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:
+ if (inbuf)
+ (void) free(inbuf);
+ if (outbuf)
+ (void) free(outbuf);
+#ifdef PORTMAP
+ if (outbuf_pmap)
+ (void) 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);
+}
+
+
+enum clnt_stat
+rpc_broadcast(prog, vers, proc, xargs, argsp, xresults, resultsp,
+ eachresult, nettype)
+ rpcprog_t prog; /* program number */
+ rpcvers_t vers; /* version number */
+ rpcproc_t proc; /* procedure number */
+ xdrproc_t xargs; /* xdr routine for args */
+ caddr_t argsp; /* pointer to args */
+ xdrproc_t xresults; /* xdr routine for results */
+ caddr_t resultsp; /* pointer to results */
+ resultproc_t eachresult; /* call with each result obtained */
+ const char *nettype; /* transport type */
+{
+ enum clnt_stat dummy;
+
+ dummy = rpc_broadcast_exp(prog, vers, proc, xargs, argsp,
+ xresults, resultsp, eachresult,
+ INITTIME, WAITTIME, nettype);
+ return (dummy);
+}