sunrpc/xdr_intXX_t.c

   1 /* Copyright (c) 1998, 1999, 2000, 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1998.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <rpc/types.h>
  21
  22 /* We play dirty tricks with aliases.  */
  23 #define xdr_quad_t Xdr_quad_t
  24 #define xdr_u_quad_t Xdr_u_quad_t
  25 #include <rpc/xdr.h>
  26 #undef xdr_quad_t
  27 #undef xdr_u_quad_t
  28
  29
  30 /* XDR 64bit integers */
  31 bool_t
  32 xdr_int64_t (XDR *xdrs, int64_t *ip)
  33 {
  34   int32_t t1;
  35   /* This must be unsigned, otherwise we get problems with sign
  36      extension in the DECODE case.  */
  37   uint32_t t2;
  38
  39   switch (xdrs->x_op)
  40     {
  41     case XDR_ENCODE:
  42       t1 = (int32_t) ((*ip) >> 32);
  43       t2 = (int32_t) (*ip);
  44       return (XDR_PUTINT32(xdrs, &t1) && XDR_PUTINT32(xdrs, &t2));
  45     case XDR_DECODE:
  46       if (!XDR_GETINT32(xdrs, &t1) || !XDR_GETINT32(xdrs, &t2))
  47         return FALSE;
  48       *ip = ((int64_t) t1) << 32;
  49       *ip |= t2;
  50       return TRUE;
  51     case XDR_FREE:
  52       return TRUE;
  53     default:
  54       return FALSE;
  55     }
  56 }
  57 strong_alias (xdr_int64_t, xdr_quad_t)
  58
  59 /* XDR 64bit unsigned integers */
  60 bool_t
  61 xdr_uint64_t (XDR *xdrs, uint64_t *uip)
  62 {
  63   uint32_t t1;
  64   uint32_t t2;
  65
  66   switch (xdrs->x_op)
  67     {
  68     case XDR_ENCODE:
  69       t1 = (uint32_t) ((*uip) >> 32);
  70       t2 = (uint32_t) (*uip);
  71       return (XDR_PUTINT32 (xdrs, (int32_t *) &t1) &&
  72               XDR_PUTINT32(xdrs, (int32_t *) &t2));
  73     case XDR_DECODE:
  74       if (!XDR_GETINT32(xdrs, (int32_t *) &t1) ||
  75           !XDR_GETINT32(xdrs, (int32_t *) &t2))
  76         return FALSE;
  77       *uip = ((uint64_t) t1) << 32;
  78       *uip |= t2;
  79       return TRUE;
  80     case XDR_FREE:
  81       return TRUE;
  82     default:
  83       return FALSE;
  84     }
  85 }
  86 strong_alias (xdr_int64_t, xdr_u_quad_t)
  87
  88 /* XDR 32bit integers */
  89 bool_t
  90 xdr_int32_t (XDR *xdrs, int32_t *lp)
  91 {
  92   switch (xdrs->x_op)
  93     {
  94     case XDR_ENCODE:
  95       return XDR_PUTINT32 (xdrs, lp);
  96     case XDR_DECODE:
  97       return XDR_GETINT32 (xdrs, lp);
  98     case XDR_FREE:
  99       return TRUE;
 100     default:
 101       return FALSE;
 102     }
 103 }
 104
 105 /* XDR 32bit unsigned integers */
 106 bool_t
 107 xdr_uint32_t (XDR *xdrs, uint32_t *ulp)
 108 {
 109   switch (xdrs->x_op)
 110     {
 111     case XDR_ENCODE:
 112       return XDR_PUTINT32 (xdrs, (int32_t *) ulp);
 113     case XDR_DECODE:
 114       return XDR_GETINT32 (xdrs, (int32_t *) ulp);
 115     case XDR_FREE:
 116       return TRUE;
 117     default:
 118       return FALSE;
 119     }
 120 }
 121
 122 /* XDR 16bit integers */
 123 bool_t
 124 xdr_int16_t (XDR *xdrs, int16_t *ip)
 125 {
 126   int32_t t;
 127
 128   switch (xdrs->x_op)
 129     {
 130     case XDR_ENCODE:
 131       t = (int32_t) *ip;
 132       return XDR_PUTINT32 (xdrs, &t);
 133     case XDR_DECODE:
 134       if (!XDR_GETINT32 (xdrs, &t))
 135         return FALSE;
 136       *ip = (int16_t) t;
 137       return TRUE;
 138     case XDR_FREE:
 139       return TRUE;
 140     default:
 141       return FALSE;
 142     }
 143 }
 144
 145 /* XDR 16bit unsigned integers */
 146 bool_t
 147 xdr_uint16_t (XDR *xdrs, uint16_t *uip)
 148 {
 149   uint32_t ut;
 150
 151   switch (xdrs->x_op)
 152     {
 153     case XDR_ENCODE:
 154       ut = (uint32_t) *uip;
 155       return XDR_PUTINT32 (xdrs, (int32_t *) &ut);
 156     case XDR_DECODE:
 157       if (!XDR_GETINT32 (xdrs, (int32_t *) &ut))
 158         return FALSE;
 159       *uip = (uint16_t) ut;
 160       return TRUE;
 161     case XDR_FREE:
 162       return TRUE;
 163     default:
 164       return FALSE;
 165     }
 166 }
 167
 168 /* XDR 8bit integers */
 169 bool_t
 170 xdr_int8_t (XDR *xdrs, int8_t *ip)
 171 {
 172   int32_t t;
 173
 174   switch (xdrs->x_op)
 175     {
 176     case XDR_ENCODE:
 177       t = (int32_t) *ip;
 178       return XDR_PUTINT32 (xdrs, &t);
 179     case XDR_DECODE:
 180       if (!XDR_GETINT32 (xdrs, &t))
 181         return FALSE;
 182       *ip = (int8_t) t;
 183       return TRUE;
 184     case XDR_FREE:
 185       return TRUE;
 186     default:
 187       return FALSE;
 188     }
 189 }
 190
 191 /* XDR 8bit unsigned integers */
 192 bool_t
 193 xdr_uint8_t (XDR *xdrs, uint8_t *uip)
 194 {
 195   uint32_t ut;
 196
 197   switch (xdrs->x_op)
 198     {
 199     case XDR_ENCODE:
 200       ut = (uint32_t) *uip;
 201       return XDR_PUTINT32 (xdrs, (int32_t *) &ut);
 202     case XDR_DECODE:
 203       if (!XDR_GETINT32 (xdrs, (int32_t *) &ut))
 204         return FALSE;
 205       *uip = (uint8_t) ut;
 206       return TRUE;
 207     case XDR_FREE:
 208       return TRUE;
 209     default:
 210       return FALSE;
 211     }
 212 }