| /* |
| * Sun RPC is a product of Sun Microsystems, Inc. and is provided for |
| * unrestricted use provided that this legend is included on all tape |
| * media and as a part of the software program in whole or part. Users |
| * may copy or modify Sun RPC without charge, but are not authorized |
| * to license or distribute it to anyone else except as part of a product or |
| * program developed by the user. |
| * |
| * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE |
| * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. |
| * |
| * Sun RPC is provided with no support and without any obligation on the |
| * part of Sun Microsystems, Inc. to assist in its use, correction, |
| * modification or enhancement. |
| * |
| * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE |
| * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC |
| * OR ANY PART THEREOF. |
| * |
| * In no event will Sun Microsystems, Inc. be liable for any lost revenue |
| * or profits or other special, indirect and consequential damages, even if |
| * Sun has been advised of the possibility of such damages. |
| * |
| * Sun Microsystems, Inc. |
| * 2550 Garcia Avenue |
| * Mountain View, California 94043 |
| */ |
| /* |
| * Copyright (C) 1984, Sun Microsystems, Inc. |
| */ |
| /* |
| * pmap_clnt.c |
| * Client interface to pmap rpc service. |
| */ |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <libintl.h> |
| #include <net/if.h> |
| #include <ifaddrs.h> |
| #include <sys/ioctl.h> |
| #include <sys/socket.h> |
| #include <netinet/in.h> |
| #include <arpa/inet.h> |
| #include <rpc/rpc.h> |
| #include <rpc/pmap_prot.h> |
| #include <rpc/pmap_clnt.h> |
| |
| /* |
| * Same as get_myaddress, but we try to use the loopback |
| * interface. portmap caches interfaces, and on DHCP clients, |
| * it could be that only loopback is started at this time. |
| */ |
| static bool_t |
| __get_myaddress (struct sockaddr_in *addr) |
| { |
| struct ifaddrs *ifa; |
| |
| if (getifaddrs (&ifa) != 0) |
| { |
| perror ("get_myaddress: getifaddrs"); |
| exit (1); |
| } |
| |
| int loopback = 1; |
| struct ifaddrs *run; |
| |
| again: |
| run = ifa; |
| while (run != NULL) |
| { |
| if ((run->ifa_flags & IFF_UP) |
| && run->ifa_addr != NULL |
| && run->ifa_addr->sa_family == AF_INET |
| && ((run->ifa_flags & IFF_LOOPBACK) || loopback == 0)) |
| { |
| *addr = *((struct sockaddr_in *) run->ifa_addr); |
| addr->sin_port = htons (PMAPPORT); |
| goto out; |
| } |
| |
| run = run->ifa_next; |
| } |
| |
| if (loopback == 1) |
| { |
| loopback = 0; |
| goto again; |
| } |
| out: |
| freeifaddrs (ifa); |
| |
| return run == NULL ? FALSE : TRUE; |
| } |
| |
| |
| static const struct timeval timeout = {5, 0}; |
| static const struct timeval tottimeout = {60, 0}; |
| |
| /* |
| * Set a mapping between program,version and port. |
| * Calls the pmap service remotely to do the mapping. |
| */ |
| bool_t |
| pmap_set (u_long program, u_long version, int protocol, u_short port) |
| { |
| struct sockaddr_in myaddress; |
| int socket = -1; |
| CLIENT *client; |
| struct pmap parms; |
| bool_t rslt; |
| |
| if (!__get_myaddress (&myaddress)) |
| return FALSE; |
| client = INTUSE(clntudp_bufcreate) (&myaddress, PMAPPROG, PMAPVERS, |
| timeout, &socket, RPCSMALLMSGSIZE, |
| RPCSMALLMSGSIZE); |
| if (client == (CLIENT *) NULL) |
| return (FALSE); |
| parms.pm_prog = program; |
| parms.pm_vers = version; |
| parms.pm_prot = protocol; |
| parms.pm_port = port; |
| if (CLNT_CALL (client, PMAPPROC_SET, (xdrproc_t)INTUSE(xdr_pmap), |
| (caddr_t)&parms, (xdrproc_t)INTUSE(xdr_bool), (caddr_t)&rslt, |
| tottimeout) != RPC_SUCCESS) |
| { |
| clnt_perror (client, _("Cannot register service")); |
| rslt = FALSE; |
| } |
| CLNT_DESTROY (client); |
| /* (void)close(socket); CLNT_DESTROY closes it */ |
| return rslt; |
| } |
| libc_hidden_def (pmap_set) |
| |
| /* |
| * Remove the mapping between program,version and port. |
| * Calls the pmap service remotely to do the un-mapping. |
| */ |
| bool_t |
| pmap_unset (u_long program, u_long version) |
| { |
| struct sockaddr_in myaddress; |
| int socket = -1; |
| CLIENT *client; |
| struct pmap parms; |
| bool_t rslt; |
| |
| if (!__get_myaddress (&myaddress)) |
| return FALSE; |
| client = INTUSE(clntudp_bufcreate) (&myaddress, PMAPPROG, PMAPVERS, |
| timeout, &socket, RPCSMALLMSGSIZE, |
| RPCSMALLMSGSIZE); |
| if (client == (CLIENT *) NULL) |
| return FALSE; |
| parms.pm_prog = program; |
| parms.pm_vers = version; |
| parms.pm_port = parms.pm_prot = 0; |
| CLNT_CALL (client, PMAPPROC_UNSET, (xdrproc_t)INTUSE(xdr_pmap), |
| (caddr_t)&parms, (xdrproc_t)INTUSE(xdr_bool), (caddr_t)&rslt, |
| tottimeout); |
| CLNT_DESTROY (client); |
| /* (void)close(socket); CLNT_DESTROY already closed it */ |
| return rslt; |
| } |
| libc_hidden_def (pmap_unset) |