lib/libc/rpc/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  * @(#)pmap_clnt.c 1.37 87/08/11 Copyr 1984 Sun Micro
  30  * @(#)pmap_clnt.c      2.2 88/08/01 4.0 RPCSRC
  31  * $FreeBSD: src/lib/libc/rpc/pmap_clnt.c,v 1.11 2000/01/27 23:06:39 jasone Exp $
  32  * $DragonFly: src/lib/libc/rpc/pmap_clnt.c,v 1.5 2005/11/13 12:27:04 swildner Exp $
  33  */
  34
  35 /*
  36  * pmap_clnt.c
  37  * Client interface to pmap rpc service.
  38  *
  39  * Copyright (C) 1984, Sun Microsystems, Inc.
  40  */
  41
  42 #include "namespace.h"
  43 #include <sys/types.h>
  44 #include <sys/stat.h>
  45 #include <unistd.h>
  46 #include <rpc/rpc.h>
  47 #include <rpc/pmap_prot.h>
  48 #include <rpc/pmap_clnt.h>
  49 #include <netinet/in.h>
  50 #include "un-namespace.h"
  51
  52 static struct timeval timeout = { 5, 0 };
  53 static struct timeval tottimeout = { 60, 0 };
  54
  55 void clnt_perror();
  56
  57 #ifndef PORTMAPSOCK
  58 #define PORTMAPSOCK "/var/run/portmapsock"
  59 #endif
  60
  61 /*
  62  * Set a mapping between program,version and port.
  63  * Calls the pmap service remotely to do the mapping.
  64  */
  65 bool_t
  66 pmap_set(u_long program, u_long version, int protocol, u_short port)
  67 {
  68         struct sockaddr_in myaddress;
  69         int socket = -1;
  70         CLIENT *client;
  71         struct pmap parms;
  72         bool_t rslt;
  73         struct stat st;
  74
  75         /*
  76          * Temporary hack for backwards compatibility. Eventually
  77          * this test will go away and we'll use only the "unix" transport.
  78          */
  79         if (stat(PORTMAPSOCK, &st) == 0 && st.st_mode & S_IFSOCK)
  80                 client = clnt_create(PORTMAPSOCK, PMAPPROG, PMAPVERS, "unix");
  81         else  {
  82                 if (get_myaddress(&myaddress) != 0)
  83                         return (FALSE);
  84                 myaddress.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
  85                 client = clntudp_bufcreate(&myaddress, PMAPPROG, PMAPVERS,
  86                         timeout, &socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
  87         }
  88
  89         if (client == (CLIENT *)NULL)
  90                 return (FALSE);
  91         parms.pm_prog = program;
  92         parms.pm_vers = version;
  93         parms.pm_prot = protocol;
  94         parms.pm_port = port;
  95         if (CLNT_CALL(client, PMAPPROC_SET, xdr_pmap, &parms, xdr_bool, &rslt,
  96             tottimeout) != RPC_SUCCESS) {
  97                 clnt_perror(client, "Cannot register service");
  98                 return (FALSE);
  99         }
 100         CLNT_DESTROY(client);
 101         if (socket != -1)
 102                 _close(socket);
 103         return (rslt);
 104 }
 105
 106 /*
 107  * Remove the mapping between program,version and port.
 108  * Calls the pmap service remotely to do the un-mapping.
 109  */
 110 bool_t
 111 pmap_unset(u_long program, u_long version)
 112 {
 113         struct sockaddr_in myaddress;
 114         int socket = -1;
 115         CLIENT *client;
 116         struct pmap parms;
 117         bool_t rslt;
 118         struct stat st;
 119
 120         /*
 121          * Temporary hack for backwards compatibility. Eventually
 122          * this test will go away and we'll use only the "unix" transport.
 123          */
 124         if (stat(PORTMAPSOCK, &st) == 0 && st.st_mode & S_IFSOCK)
 125                 client = clnt_create(PORTMAPSOCK, PMAPPROG, PMAPVERS, "unix");
 126         else {
 127                 if (get_myaddress(&myaddress) != 0)
 128                         return (FALSE);
 129                 myaddress.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
 130                 client = clntudp_bufcreate(&myaddress, PMAPPROG, PMAPVERS,
 131                         timeout, &socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
 132         }
 133         if (client == (CLIENT *)NULL)
 134                 return (FALSE);
 135         parms.pm_prog = program;
 136         parms.pm_vers = version;
 137         parms.pm_port = parms.pm_prot = 0;
 138         CLNT_CALL(client, PMAPPROC_UNSET, xdr_pmap, &parms, xdr_bool, &rslt,
 139             tottimeout);
 140         CLNT_DESTROY(client);
 141         if (socket != -1)
 142                 _close(socket);
 143         return (rslt);
 144 }