4.3BSD - /usr/src/new/sunrpc/pmap_clnt.c

   1: /*
   2:  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
   3:  * unrestricted use provided that this legend is included on all tape
   4:  * media and as a part of the software program in whole or part.  Users
   5:  * may copy or modify Sun RPC without charge, but are not authorized
   6:  * to license or distribute it to anyone else except as part of a product or
   7:  * program developed by the user.
   8:  *
   9:  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  10:  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  11:  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  12:  *
  13:  * Sun RPC is provided with no support and without any obligation on the
  14:  * part of Sun Microsystems, Inc. to assist in its use, correction,
  15:  * modification or enhancement.
  16:  *
  17:  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  18:  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  19:  * OR ANY PART THEREOF.
  20:  *
  21:  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  22:  * or profits or other special, indirect and consequential damages, even if
  23:  * Sun has been advised of the possibility of such damages.
  24:  *
  25:  * Sun Microsystems, Inc.
  26:  * 2550 Garcia Avenue
  27:  * Mountain View, California  94043
  28:  */
  29: #ifndef lint
  30: static char sccsid[] = "@(#)pmap_clnt.c 1.4 85/04/08 Copyr 1984 Sun Micro";
  31: #endif
  32: 
  33: /*
  34:  * pmap_clnt.c
  35:  * Client interface to pmap rpc service.
  36:  *
  37:  * Copyright (C) 1984, Sun Microsystems, Inc.
  38:  */
  39: 
  40: #include "types.h"
  41: #include <netinet/in.h>
  42: #include "xdr.h"
  43: #include "auth.h"
  44: #include "clnt.h"
  45: #include "rpc_msg.h"
  46: #include "pmap_prot.h"
  47: #include "pmap_clnt.h"
  48: #include <sys/socket.h>
  49: #include <sys/time.h>
  50: #include <stdio.h>
  51: #include <net/if.h>
  52: #include <sys/ioctl.h>
  53: #include <arpa/inet.h>
  54: #define NAMELEN 255
  55: 
  56: static struct timeval timeout = { 5, 0 };
  57: static struct timeval tottimeout = { 60, 0 };
  58: static struct sockaddr_in myaddress;
  59: 
  60: void clnt_perror();
  61: 
  62: 
  63: /*
  64:  * Set a mapping between program,version and port.
  65:  * Calls the pmap service remotely to do the mapping.
  66:  */
  67: bool_t
  68: pmap_set(program, version, protocol, port)
  69:     u_long program;
  70:     u_long version;
  71:     u_long protocol;
  72:     u_short port;
  73: {
  74:     struct sockaddr_in myaddress;
  75:     int socket = -1;
  76:     register CLIENT *client;
  77:     struct pmap parms;
  78:     bool_t rslt;
  79: 
  80:     get_myaddress(&myaddress);
  81:     client = clntudp_create(&myaddress, PMAPPROG, PMAPVERS,
  82:         timeout, &socket);
  83:     if (client == (CLIENT *)NULL)
  84:         return (FALSE);
  85:     parms.pm_prog = program;
  86:     parms.pm_vers = version;
  87:     parms.pm_prot = protocol;
  88:     parms.pm_port = port;
  89:     if (CLNT_CALL(client, PMAPPROC_SET, xdr_pmap, &parms, xdr_bool, &rslt,
  90:         tottimeout) != RPC_SUCCESS) {
  91:         clnt_perror(client, "Cannot register service");
  92:         return (FALSE);
  93:     }
  94:     CLNT_DESTROY(client);
  95:     (void)close(socket);
  96:     return (rslt);
  97: }
  98: 
  99: /*
 100:  * Remove the mapping between program,version and port.
 101:  * Calls the pmap service remotely to do the un-mapping.
 102:  */
 103: bool_t
 104: pmap_unset(program, version)
 105:     u_long program;
 106:     u_long version;
 107: {
 108:     struct sockaddr_in myaddress;
 109:     int socket = -1;
 110:     register CLIENT *client;
 111:     struct pmap parms;
 112:     bool_t rslt;
 113: 
 114:     get_myaddress(&myaddress);
 115:     client = clntudp_create(&myaddress, PMAPPROG, PMAPVERS,
 116:         timeout, &socket);
 117:     if (client == (CLIENT *)NULL)
 118:         return (FALSE);
 119:     parms.pm_prog = program;
 120:     parms.pm_vers = version;
 121:     parms.pm_port = parms.pm_prot = 0;
 122:     CLNT_CALL(client, PMAPPROC_UNSET, xdr_pmap, &parms, xdr_bool, &rslt,
 123:         tottimeout);
 124:     CLNT_DESTROY(client);
 125:     (void)close(socket);
 126:     return (rslt);
 127: }
 128: 
 129: /*
 130:  * don't use gethostbyname, which would invoke yellow pages
 131:  */
 132: get_myaddress(addr)
 133:     struct sockaddr_in *addr;
 134: {
 135:     int s;
 136:     char buf[BUFSIZ];
 137:     struct ifconf ifc;
 138:     struct ifreq ifreq, *ifr;
 139:     int len;
 140: 
 141:     if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
 142:         perror("get_myaddress: socket");
 143:         exit(1);
 144:     }
 145:     ifc.ifc_len = sizeof (buf);
 146:     ifc.ifc_buf = buf;
 147:     if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) {
 148:         perror("get_myaddress: ioctl (get interface configuration)");
 149:         exit(1);
 150:     }
 151:     ifr = ifc.ifc_req;
 152:     for (len = ifc.ifc_len; len; len -= sizeof ifreq) {
 153:         ifreq = *ifr;
 154:         if (ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) {
 155:             perror("get_myaddress: ioctl");
 156:             exit(1);
 157:         }
 158:         if ((ifreq.ifr_flags & IFF_UP) &&
 159:             ifr->ifr_addr.sa_family == AF_INET) {
 160:             *addr = *((struct sockaddr_in *)&ifr->ifr_addr);
 161:             addr->sin_port = htons(PMAPPORT);
 162:             break;
 163:         }
 164:         ifr++;
 165:     }
 166:     close(s);
 167: }

Defined functions

Defined variables

Defined macros