nsprpub/pr/src/misc/prrng.c

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "primpl.h"
   7
   8 /*
   9  * We were not including <string.h> in optimized builds.  On AIX this
  10  * caused libnspr4.so to export memcpy and some binaries linked with
  11  * libnspr4.so resolved their memcpy references with libnspr4.so.  To
  12  * be backward compatible with old libnspr4.so binaries, we do not
  13  * include <string.h> in optimized builds for AIX.  (bug 200561)
  14  */
  15 #if !(defined(AIX) && !defined(DEBUG))
  16 #include <string.h>
  17 #endif
  18
  19 PRSize _pr_CopyLowBits(
  20     void *dst,
  21     PRSize dstlen,
  22     void *src,
  23     PRSize srclen )
  24 {
  25     if (srclen <= dstlen) {
  26         memcpy(dst, src, srclen);
  27         return srclen;
  28     }
  29 #if defined IS_BIG_ENDIAN
  30     memcpy(dst, (char*)src + (srclen - dstlen), dstlen);
  31 #else
  32     memcpy(dst, src, dstlen);
  33 #endif
  34     return dstlen;
  35 }
  36
  37 PR_IMPLEMENT(PRSize) PR_GetRandomNoise(
  38     void    *buf,
  39     PRSize  size
  40 )
  41 {
  42     return( _PR_MD_GET_RANDOM_NOISE( buf, size ));
  43 } /* end PR_GetRandomNoise() */
  44 /* end prrng.c */