lib/libc/inet/inet_ntoa.c

http://www.minix3.org/ · C · 64 lines · 25 code · 6 blank · 33 comment · 1 complexity · c41e27842af11c3a5c7ea6c548d64234 MD5 · raw file 

    

  1. /*	$NetBSD: inet_ntoa.c,v 1.1 2004/05/20 23:13:02 christos Exp $	*/
    2. 

  2. 

  3. /*
    4. 

  4.  * Copyright (c) 1983, 1993
    5. 

  5.  *	The Regents of the University of California.  All rights reserved.
    6. 

  6.  *
    7. 

  7.  * Redistribution and use in source and binary forms, with or without
    8. 

  8.  * modification, are permitted provided that the following conditions
    9. 

  9.  * are met:
    10. 

  10.  * 1. Redistributions of source code must retain the above copyright
    11. 

  11.  *    notice, this list of conditions and the following disclaimer.
    12. 

  12.  * 2. Redistributions in binary form must reproduce the above copyright
    13. 

  13.  *    notice, this list of conditions and the following disclaimer in the
    14. 

  14.  *    documentation and/or other materials provided with the distribution.
    15. 

  15.  * 3. Neither the name of the University nor the names of its contributors
    16. 

  16.  *    may be used to endorse or promote products derived from this software
    17. 

  17.  *    without specific prior written permission.
    18. 

  18.  *
    19. 

  19.  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
    20. 

  20.  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    21. 

  21.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    22. 

  22.  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
    23. 

  23.  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    24. 

  24.  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    25. 

  25.  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    26. 

  26.  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    27. 

  27.  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    28. 

  28.  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    29. 

  29.  * SUCH DAMAGE.
    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[] = "@(#)inet_ntoa.c	8.1 (Berkeley) 6/4/93";
    36. 

  36. #else
    37. 

  37. __RCSID("$NetBSD: inet_ntoa.c,v 1.1 2004/05/20 23:13:02 christos Exp $");
    38. 

  38. #endif
    39. 

  39. #endif /* LIBC_SCCS and not lint */
    40. 

  40. 

  41. #include "namespace.h"
    42. 

  42. #include <sys/types.h>
    43. 

  43. #include <sys/socket.h>
    44. 

  44. #include <netinet/in.h>
    45. 

  45. #include <arpa/inet.h>
    46. 

  46. #include <stdio.h>
    47. 

  47. #include <string.h>
    48. 

  48. 

  49. #ifdef __weak_alias
    50. 

  50. __weak_alias(inet_ntoa,_inet_ntoa)
    51. 

  51. #endif
    52. 

  52. 

  53. /*
    54. 

  54.  * Convert network-format internet address
    55. 

  55.  * to base 256 d.d.d.d representation.
    56. 

  56.  */
    57. 

  57. /*const*/ char *
    58. 

  58. inet_ntoa(struct in_addr in) {
    59. 

  59. 	static char ret[18];
    60. 

  60. 

  61. 	strlcpy(ret, "[inet_ntoa error]", sizeof(ret));
    62. 

  62. 	(void) inet_ntop(AF_INET, &in, ret, sizeof ret);
    63. 

  63. 	return (ret);
    64. 

  64. }
    65.