pm_getport.c 3.1 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. libc_hidden_proto(clntudp_bufcreate)
  45. libc_hidden_proto(__rpc_thread_createerr)
  46. libc_hidden_proto(xdr_u_short)
  47. libc_hidden_proto(xdr_pmap)
  48. static const struct timeval timeout =
  49. {5, 0};
  50. static const struct timeval tottimeout =
  51. {60, 0};
  52. /*
  53. * Find the mapped port for program,version.
  54. * Calls the pmap service remotely to do the lookup.
  55. * Returns 0 if no map exists.
  56. */
  57. libc_hidden_proto(pmap_getport)
  58. u_short
  59. pmap_getport (address, program, version, protocol)
  60. struct sockaddr_in *address;
  61. u_long program;
  62. u_long version;
  63. u_int protocol;
  64. {
  65. u_short port = 0;
  66. int _socket = -1;
  67. CLIENT *client;
  68. struct pmap parms;
  69. address->sin_port = htons (PMAPPORT);
  70. client = clntudp_bufcreate (address, PMAPPROG,
  71. PMAPVERS, timeout, &_socket, RPCSMALLMSGSIZE, RPCSMALLMSGSIZE);
  72. if (client != (CLIENT *) NULL)
  73. {
  74. struct rpc_createerr *ce = &get_rpc_createerr ();
  75. parms.pm_prog = program;
  76. parms.pm_vers = version;
  77. parms.pm_prot = protocol;
  78. parms.pm_port = 0; /* not needed or used */
  79. if (CLNT_CALL (client, PMAPPROC_GETPORT, (xdrproc_t)xdr_pmap,
  80. (caddr_t)&parms, (xdrproc_t)xdr_u_short,
  81. (caddr_t)&port, tottimeout) != RPC_SUCCESS)
  82. {
  83. ce->cf_stat = RPC_PMAPFAILURE;
  84. clnt_geterr (client, &ce->cf_error);
  85. }
  86. else if (port == 0)
  87. {
  88. ce->cf_stat = RPC_PROGNOTREGISTERED;
  89. }
  90. CLNT_DESTROY (client);
  91. }
  92. /* (void)__close(_socket); CLNT_DESTROY already closed it */
  93. address->sin_port = 0;
  94. return port;
  95. }
  96. libc_hidden_def(pmap_getport)