pmap_getport.c 2.8 KB

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  1. /* @(#)pmap_getport.c 2.2 88/08/01 4.0 RPCSRC */
  2. /*
  3. * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
  4. * unrestricted use provided that this legend is included on all tape
  5. * media and as a part of the software program in whole or part. Users
  6. * may copy or modify Sun RPC without charge, but are not authorized
  7. * to license or distribute it to anyone else except as part of a product or
  8. * program developed by the user.
  9. *
  10. * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
  11. * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
  12. * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
  13. *
  14. * Sun RPC is provided with no support and without any obligation on the
  15. * part of Sun Microsystems, Inc. to assist in its use, correction,
  16. * modification or enhancement.
  17. *
  18. * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
  19. * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
  20. * OR ANY PART THEREOF.
  21. *
  22. * In no event will Sun Microsystems, Inc. be liable for any lost revenue
  23. * or profits or other special, indirect and consequential damages, even if
  24. * Sun has been advised of the possibility of such damages.
  25. *
  26. * Sun Microsystems, Inc.
  27. * 2550 Garcia Avenue
  28. * Mountain View, California 94043
  29. */
  30. #define __FORCE_GLIBC
  31. #include <features.h>
  32. /*
  33. * pmap_getport.c
  34. * Client interface to pmap rpc service.
  35. *
  36. * Copyright (C) 1984, Sun Microsystems, Inc.
  37. */
  38. #include <rpc/rpc.h>
  39. #include <rpc/pmap_prot.h>
  40. #include <rpc/pmap_clnt.h>
  41. #include <sys/socket.h>
  42. #include <unistd.h>
  43. //#include <net/if.h>
  44. static struct timeval timeout = { 5, 0 };
  45. static struct timeval tottimeout = { 60, 0 };
  46. /*
  47. * Find the mapped port for program,version.
  48. * Calls the pmap service remotely to do the lookup.
  49. * Returns 0 if no map exists.
  50. */
  51. u_short pmap_getport(address, program, version, protocol)
  52. struct sockaddr_in *address;
  53. u_long program;
  54. u_long version;
  55. u_int protocol;
  56. {
  57. u_short port = 0;
  58. int socket = -1;
  59. register CLIENT *client;
  60. struct pmap parms;
  61. address->sin_port = htons(PMAPPORT);
  62. client = clntudp_bufcreate(address, PMAPPROG,
  63. PMAPVERS, timeout, &socket, RPCSMALLMSGSIZE,
  64. RPCSMALLMSGSIZE);
  65. if (client != (CLIENT *) NULL) {
  66. parms.pm_prog = program;
  67. parms.pm_vers = version;
  68. parms.pm_prot = protocol;
  69. parms.pm_port = 0; /* not needed or used */
  70. if (CLNT_CALL(client, PMAPPROC_GETPORT,
  71. (xdrproc_t) xdr_pmap, (caddr_t) &parms,
  72. (xdrproc_t) xdr_u_short, (caddr_t) &port,
  73. tottimeout) != RPC_SUCCESS) {
  74. rpc_createerr.cf_stat = RPC_PMAPFAILURE;
  75. clnt_geterr(client, &rpc_createerr.cf_error);
  76. } else if (port == 0) {
  77. rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED;
  78. }
  79. CLNT_DESTROY(client);
  80. }
  81. (void) close(socket);
  82. address->sin_port = 0;
  83. return (port);
  84. }