#ifndef lint static char rcs_id[] = {"$Header: pmap_clnt.c,v 1.1 86/09/05 09:16:43 tadl Exp $"}; #endif not lint /* * RCS Info * $Locker: tadl $ */ /* NFSSRC @(#)pmap_clnt.c 2.2 86/04/14 */ #ifndef lint static char sccsid[] = "@(#)pmap_clnt.c 1.1 86/02/03 Copyr 1984 Sun Micro"; #endif /* * pmap_clnt.c * Client interface to pmap rpc service. * * Copyright (C) 1984, Sun Microsystems, Inc. */ #include "types.h" #include <netinet/in.h> #include "xdr.h" #include "auth.h" #include "clnt.h" #include "rpc_msg.h" #include "pmap_prot.h" #include "pmap_clnt.h" #include <sys/socket.h> #include <sys/time.h> #include <stdio.h> #include <net/if.h> #include <sys/ioctl.h> #include <arpa/inet.h> #define NAMELEN 255 static struct timeval timeout = { 5, 0 }; static struct timeval tottimeout = { 60, 0 }; static struct sockaddr_in myaddress; void clnt_perror(); /* * Set a mapping between program,version and port. * Calls the pmap service remotely to do the mapping. */ bool_t pmap_set(program, version, protocol, port) u_long program; u_long version; u_long protocol; u_short port; { struct sockaddr_in myaddress; int socket = -1; register CLIENT *client; struct pmap parms; bool_t rslt; get_myaddress(&myaddress); client = 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, xdr_pmap, &parms, xdr_bool, &rslt, tottimeout) != RPC_SUCCESS) { clnt_perror(client, "Cannot register service"); return (FALSE); } CLNT_DESTROY(client); (void)close(socket); return (rslt); } /* * Remove the mapping between program,version and port. * Calls the pmap service remotely to do the un-mapping. */ bool_t pmap_unset(program, version) u_long program; u_long version; { struct sockaddr_in myaddress; int socket = -1; register CLIENT *client; struct pmap parms; bool_t rslt; get_myaddress(&myaddress); client = 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, xdr_pmap, &parms, xdr_bool, &rslt, tottimeout); CLNT_DESTROY(client); (void)close(socket); return (rslt); } /* * don't use gethostbyname, which would invoke yellow pages */ get_myaddress(addr) struct sockaddr_in *addr; { int s; char buf[BUFSIZ]; struct ifconf ifc; struct ifreq ifreq, *ifr; int len; if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { perror("get_myaddress: socket"); exit(1); } ifc.ifc_len = sizeof (buf); ifc.ifc_buf = buf; if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) { perror("get_myaddress: ioctl (get interface configuration)"); exit(1); } ifr = ifc.ifc_req; for (len = ifc.ifc_len; len; len -= sizeof ifreq) { ifreq = *ifr; if (ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) { perror("get_myaddress: ioctl"); exit(1); } if ((ifreq.ifr_flags & IFF_UP) && ifr->ifr_addr.sa_family == AF_INET) { *addr = *((struct sockaddr_in *)&ifr->ifr_addr); addr->sin_port = htons(PMAPPORT); break; } ifr++; } close(s); }