server/endian.c

   1 /*
   2  * endian.c
   3  *
   4  * Copyright (C) 2004-2011  S3D contributors
   5  *
   6  * This file is part of s3d, a 3d network display server.
   7  * See http://s3d.berlios.de/ for more updates.
   8  *
   9  * s3d is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * s3d is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with s3d; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  22  */
  23
  24 #include <arpa/inet.h>          /*  htonl(),htons() */
  25 #include <stdint.h>
  26 #include "global.h"
  27
  28 /* convert buffer with floats from host to network endianess */
  29 void htonfb(float *netfloat, int num)
  30 {
  31         int i;
  32         for (i = 0; i < num; i++) {
  33                 *(uint32_t *) & netfloat[i] = htonl(*(uint32_t *) & netfloat[i]);
  34         }
  35 }
  36
  37 /* convert buffer with floats from network to host endianess */
  38 void ntohfb(float *netfloat, int num)
  39 {
  40         int i;
  41         for (i = 0; i < num; i++) {
  42                 *(uint32_t *) & netfloat[i] = ntohl(*(uint32_t *) & netfloat[i]);
  43         }
  44 }
  45
  46 /* convert buffer with uint32_ts from host to network endianess */
  47 void htonlb(uint32_t * netint32, int num)
  48 {
  49         int i;
  50         for (i = 0; i < num; i++) {
  51                 netint32[i] = htonl(netint32[i]);
  52         }
  53 }
  54
  55 /* convert buffer with uint32_ts from network to host endianess */
  56 void ntohlb(uint32_t * netint32, int num)
  57 {
  58         int i;
  59         for (i = 0; i < num; i++) {
  60                 netint32[i] = ntohl(netint32[i]);
  61         }
  62 }
  63
  64 /* convert buffer with uint16_ts from host to network endianess */
  65 void htonsb(uint16_t * netint16, int num)
  66 {
  67         int i;
  68         for (i = 0; i < num; i++) {
  69                 netint16[i] = htons(netint16[i]);
  70         }
  71 }
  72
  73 /* convert buffer with uint16_ts from network to host endianess */
  74 void ntohsb(uint16_t * netint16, int num)
  75 {
  76         int i;
  77         for (i = 0; i < num; i++) {
  78                 netint16[i] = ntohs(netint16[i]);
  79         }
  80 }