lib/libc/rpc/getrpcport.c

http://www.minix3.org/ · C · 85 lines · 41 code · 11 blank · 33 comment · 5 complexity · 4e965a90b15eb20a49339f8656cc52a2 MD5 · raw file 

    

  1. /*	$NetBSD: getrpcport.c,v 1.16 2000/01/22 22:19:18 mycroft Exp $	*/
    2. 

  2. 

  3. /*
    4. 

  4.  * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
    5. 

  5.  * unrestricted use provided that this legend is included on all tape
    6. 

  6.  * media and as a part of the software program in whole or part.  Users
    7. 

  7.  * may copy or modify Sun RPC without charge, but are not authorized
    8. 

  8.  * to license or distribute it to anyone else except as part of a product or
    9. 

  9.  * program developed by the user.
    10. 

  10.  * 
    11. 

  11.  * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
    12. 

  12.  * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
    13. 

  13.  * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
    14. 

  14.  * 
    15. 

  15.  * Sun RPC is provided with no support and without any obligation on the
    16. 

  16.  * part of Sun Microsystems, Inc. to assist in its use, correction,
    17. 

  17.  * modification or enhancement.
    18. 

  18.  * 
    19. 

  19.  * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
    20. 

  20.  * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
    21. 

  21.  * OR ANY PART THEREOF.
    22. 

  22.  * 
    23. 

  23.  * In no event will Sun Microsystems, Inc. be liable for any lost revenue
    24. 

  24.  * or profits or other special, indirect and consequential damages, even if
    25. 

  25.  * Sun has been advised of the possibility of such damages.
    26. 

  26.  * 
    27. 

  27.  * Sun Microsystems, Inc.
    28. 

  28.  * 2550 Garcia Avenue
    29. 

  29.  * Mountain View, California  94043
    30. 

  30.  */
    31. 

  31. 

  32. #include <sys/cdefs.h>
    33. 

  33. #if defined(LIBC_SCCS) && !defined(lint)
    34. 

  34. #if 0
    35. 

  35. static char *sccsid = "@(#)getrpcport.c 1.3 87/08/11 SMI";
    36. 

  36. static char *sccsid = "@(#)getrpcport.c	2.1 88/07/29 4.0 RPCSRC";
    37. 

  37. #else
    38. 

  38. __RCSID("$NetBSD: getrpcport.c,v 1.16 2000/01/22 22:19:18 mycroft Exp $");
    39. 

  39. #endif
    40. 

  40. #endif
    41. 

  41. 

  42. /*
    43. 

  43.  * Copyright (c) 1985 by Sun Microsystems, Inc.
    44. 

  44.  */
    45. 

  45. 

  46. #include "namespace.h"
    47. 

  47. 

  48. #include <sys/types.h>
    49. 

  49. #include <sys/socket.h>
    50. 

  50. 

  51. #include <assert.h>
    52. 

  52. #include <netdb.h>
    53. 

  53. #include <stdio.h>
    54. 

  54. #include <string.h>
    55. 

  55. 

  56. #include <rpc/rpc.h>
    57. 

  57. #include <rpc/pmap_clnt.h>
    58. 

  58. 

  59. #ifdef __weak_alias
    60. 

  60. __weak_alias(getrpcport,_getrpcport)
    61. 

  61. #endif
    62. 

  62. 

  63. int
    64. 

  64. getrpcport(host, prognum, versnum, proto)
    65. 

  65. 	char *host;
    66. 

  66. 	int prognum, versnum, proto;
    67. 

  67. {
    68. 

  68. 	struct sockaddr_in addr;
    69. 

  69. 	struct hostent *hp;
    70. 

  70. 

  71. 	_DIAGASSERT(host != NULL);
    72. 

  72. 

  73. 	if ((hp = gethostbyname(host)) == NULL)
    74. 

  74. 		return (0);
    75. 

  75. 	memset(&addr, 0, sizeof(addr));
    76. 

  76. 	addr.sin_len = sizeof(struct sockaddr_in);
    77. 

  77. 	addr.sin_family = AF_INET;
    78. 

  78. 	addr.sin_port =  0;
    79. 

  79. 	if (hp->h_length > addr.sin_len)
    80. 

  80. 		hp->h_length = addr.sin_len;
    81. 

  81. 	memcpy(&addr.sin_addr.s_addr, hp->h_addr, (size_t)hp->h_length);
    82. 

  82. 	/* Inconsistent interfaces need casts! :-( */
    83. 

  83. 	return (pmap_getport(&addr, (u_long)prognum, (u_long)versnum, 
    84. 

  84. 	    (u_int)proto));
    85. 

  85. }
    86.