1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 1991-2000, 2003 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28 
  29 #include <sys/types.h>
  30 #include <netinet/in.h>
  31 
  32 #ifdef  _LITTLE_ENDIAN
  33 uint32_t
  34 htonl(uint32_t in)
  35 {
  36         uint32_t        i;
  37 
  38         i = (uint32_t)((in & (uint32_t)0xff000000) >> 24) +
  39             (uint32_t)((in & (uint32_t)0x00ff0000) >> 8) +
  40             (uint32_t)((in & (uint32_t)0x0000ff00) << 8) +
  41             (uint32_t)((in & (uint32_t)0x000000ff) << 24);
  42         return (i);
  43 }
  44 
  45 uint32_t
  46 ntohl(uint32_t in)
  47 {
  48         return (htonl(in));
  49 }
  50 
  51 uint16_t
  52 htons(uint16_t in)
  53 {
  54         register int arg = (int)in;
  55         uint16_t i;
  56 
  57         i = (uint16_t)(((arg & 0xff00) >> 8) & 0xff);
  58         i |= (uint16_t)((arg & 0xff) << 8);
  59         return ((uint16_t)i);
  60 }
  61 
  62 uint16_t
  63 ntohs(uint16_t in)
  64 {
  65         return (htons(in));
  66 }
  67 
  68 #else   /* _LITTLE_ENDIAN */
  69 
  70 #if defined(lint)
  71 
  72 uint32_t
  73 htonl(uint32_t in)
  74 {
  75         return (in);
  76 }
  77 
  78 uint32_t
  79 ntohl(uint32_t in)
  80 {
  81         return (in);
  82 }
  83 
  84 uint16_t
  85 htons(uint16_t in)
  86 {
  87         return (in);
  88 }
  89 
  90 uint16_t
  91 ntohs(uint16_t in)
  92 {
  93         return (in);
  94 }
  95 
  96 #endif  /* lint */
  97 #endif  /* _LITTLE_ENDIAN */