pm_getport.c 2.9 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. #if 0
  31. static char sccsid[] = "@(#)pmap_getport.c 1.9 87/08/11 Copyr 1984 Sun Micro";
  32. #endif
  33. /*
  34. * pmap_getport.c
  35. * Client interface to pmap rpc service.
  36. *
  37. * Copyright (C) 1984, Sun Microsystems, Inc.
  38. */
  39. #include <stdbool.h>
  40. #include <unistd.h>
  41. #include <rpc/rpc.h>
  42. #include <rpc/pmap_prot.h>
  43. #include <rpc/pmap_clnt.h>
  44. static const struct timeval timeout =
  45. {5, 0};
  46. static const struct timeval tottimeout =
  47. {60, 0};
  48. /*
  49. * Find the mapped port for program,version.
  50. * Calls the pmap service remotely to do the lookup.
  51. * Returns 0 if no map exists.
  52. */
  53. u_short
  54. pmap_getport (struct sockaddr_in *address, u_long program, u_long version,
  55. u_int protocol)
  56. {
  57. u_short port = 0;
  58. int _socket = -1;
  59. CLIENT *client;
  60. struct pmap parms;
  61. address->sin_port = htons (PMAPPORT);
  62. client = clntudp_bufcreate (address, PMAPPROG,
  63. PMAPVERS, timeout, &_socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
  64. if (client != (CLIENT *) NULL)
  65. {
  66. struct rpc_createerr *ce = &get_rpc_createerr ();
  67. parms.pm_prog = program;
  68. parms.pm_vers = version;
  69. parms.pm_prot = protocol;
  70. parms.pm_port = 0; /* not needed or used */
  71. if (CLNT_CALL (client, PMAPPROC_GETPORT, (xdrproc_t)xdr_pmap,
  72. (caddr_t)&parms, (xdrproc_t)xdr_u_short,
  73. (caddr_t)&port, tottimeout) != RPC_SUCCESS)
  74. {
  75. ce->cf_stat = RPC_PMAPFAILURE;
  76. clnt_geterr (client, &ce->cf_error);
  77. }
  78. else if (port == 0)
  79. {
  80. ce->cf_stat = RPC_PROGNOTREGISTERED;
  81. }
  82. CLNT_DESTROY (client);
  83. }
  84. /* (void)close(_socket); CLNT_DESTROY already closed it */
  85. address->sin_port = 0;
  86. return port;
  87. }
  88. libc_hidden_def(pmap_getport)