Delete bundled copy of NSS and replace with README.

nspr/pr/src/md/windows/w32rng.c

-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#include <windows.h>
-#include <time.h>
-#include <io.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <stdio.h>
-#include <primpl.h>
-
-static BOOL
-CurrentClockTickTime(LPDWORD lpdwHigh, LPDWORD lpdwLow)
-{
-    LARGE_INTEGER   liCount;
-
-    if (!QueryPerformanceCounter(&liCount))
-        return FALSE;
-
-    *lpdwHigh = liCount.u.HighPart;
-    *lpdwLow = liCount.u.LowPart;
-    return TRUE;
-}
-
-extern PRSize _PR_MD_GetRandomNoise( void *buf, PRSize size )
-{
-    DWORD   dwHigh, dwLow, dwVal;
-    size_t  n = 0;
-    size_t  nBytes;
-    time_t  sTime;
-
-    if (size <= 0)
-        return 0;
-
-    CurrentClockTickTime(&dwHigh, &dwLow);
-
-    // get the maximally changing bits first
-    nBytes = sizeof(dwLow) > size ? size : sizeof(dwLow);
-    memcpy((char *)buf, &dwLow, nBytes);
-    n += nBytes;
-    size -= nBytes;
-
-    if (size <= 0)
-        return n;
-
-    nBytes = sizeof(dwHigh) > size ? size : sizeof(dwHigh);
-    memcpy(((char *)buf) + n, &dwHigh, nBytes);
-    n += nBytes;
-    size -= nBytes;
-
-    if (size <= 0)
-        return n;
-
-    // get the number of milliseconds that have elapsed since Windows started
-    dwVal = GetTickCount();
-
-    nBytes = sizeof(dwVal) > size ? size : sizeof(dwVal);
-    memcpy(((char *)buf) + n, &dwVal, nBytes);
-    n += nBytes;
-    size -= nBytes;
-
-    if (size <= 0)
-        return n;
-
-    // get the time in seconds since midnight Jan 1, 1970
-    time(&sTime);
-    nBytes = sizeof(sTime) > size ? size : sizeof(sTime);
-    memcpy(((char *)buf) + n, &sTime, nBytes);
-    n += nBytes;
-
-    return n;
-}
-