Delete bundled copy of NSS and replace with README.

nspr/pr/src/md/unix/uxrng.c

Index: nspr/pr/src/md/unix/uxrng.c
diff --git a/nspr/pr/src/md/unix/uxrng.c b/nspr/pr/src/md/unix/uxrng.c
deleted file mode 100644
index da2f7e9fef2c8bded85dfc68cc05ec38a0753a99..0000000000000000000000000000000000000000
--- a/nspr/pr/src/md/unix/uxrng.c
+++ /dev/null
@@ -1,252 +0,0 @@
-/* -*- 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 "primpl.h"
-
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <sys/time.h>
-
-
-#if defined(SOLARIS)
-
-static size_t
-GetHighResClock(void *buf, size_t maxbytes)
-{
-    hrtime_t t;
-    t = gethrtime();
-    if (t) {
-	    return _pr_CopyLowBits(buf, maxbytes, &t, sizeof(t));
-    }
-    return 0;
-}
-
-#elif defined(HPUX)
-
-#ifdef __ia64
-#include <ia64/sys/inline.h>
-
-static size_t
-GetHighResClock(void *buf, size_t maxbytes)
-{
-    PRUint64 t;
-
-#ifdef __GNUC__
-    __asm__ __volatile__("mov %0 = ar.itc" : "=r" (t));
-#else
-    t = _Asm_mov_from_ar(_AREG44);
-#endif
-    return _pr_CopyLowBits(buf, maxbytes, &t, sizeof(t));
-}
-#else
-static size_t
-GetHighResClock(void *buf, size_t maxbytes)
-{
-    extern int ret_cr16();
-    int cr16val;
-
-    cr16val = ret_cr16();
-    return(_pr_CopyLowBits(buf, maxbytes, &cr16val, sizeof(cr16val)));
-}
-#endif
-
-#elif defined(OSF1)
-
-#include <c_asm.h>
-
-/*
- * Use the "get the cycle counter" instruction on the alpha.
- * The low 32 bits completely turn over in less than a minute.
- * The high 32 bits are some non-counter gunk that changes sometimes.
- */
-static size_t
-GetHighResClock(void *buf, size_t maxbytes)
-{
-    unsigned long t;
-
-#ifdef __GNUC__
-    __asm__("rpcc %0" : "=r" (t));
-#else
-    t = asm("rpcc %v0");
-#endif
-    return _pr_CopyLowBits(buf, maxbytes, &t, sizeof(t));
-}
-
-#elif defined(AIX)
-
-static size_t
-GetHighResClock(void *buf, size_t maxbytes)
-{
-    return 0;
-}
-
-#elif (defined(LINUX) || defined(FREEBSD) || defined(__FreeBSD_kernel__) \
-    || defined(NETBSD) || defined(__NetBSD_kernel__) || defined(OPENBSD) \
-    || defined(SYMBIAN) || defined(__GNU__))
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-static int      fdDevURandom;
-static PRCallOnceType coOpenDevURandom;
-
-static PRStatus OpenDevURandom( void )
-{
-    fdDevURandom = open( "/dev/urandom", O_RDONLY );
-    return((-1 == fdDevURandom)? PR_FAILURE : PR_SUCCESS );
-} /* end OpenDevURandom() */
-
-static size_t GetDevURandom( void *buf, size_t size )
-{
-    int bytesIn;
-    int rc;
-
-    rc = PR_CallOnce( &coOpenDevURandom, OpenDevURandom );
-    if ( PR_FAILURE == rc ) {
-        _PR_MD_MAP_OPEN_ERROR( errno );
-        return(0);
-    }
-
-    bytesIn = read( fdDevURandom, buf, size );
-    if ( -1 == bytesIn ) {
-        _PR_MD_MAP_READ_ERROR( errno );
-        return(0);
-    }
-
-    return( bytesIn );
-} /* end GetDevURandom() */
-
-static size_t
-GetHighResClock(void *buf, size_t maxbytes)
-{             
-    return(GetDevURandom( buf, maxbytes ));
-}
-
-#elif defined(IRIX)
-#include <fcntl.h>
-#undef PRIVATE
-#include <sys/mman.h>
-#include <sys/syssgi.h>
-#include <sys/immu.h>
-#include <sys/systeminfo.h>
-#include <sys/utsname.h>
-
-static size_t GetHighResClock(void *buf, size_t maxbuf)
-{
-    unsigned phys_addr, raddr, cycleval;
-    static volatile unsigned *iotimer_addr = NULL;
-    static int tries = 0;
-    static int cntr_size;
-    int mfd;
-    unsigned s0[2];
-
-#ifndef SGI_CYCLECNTR_SIZE
-#define SGI_CYCLECNTR_SIZE      165     /* Size user needs to use to read CC */
-#endif
-
-    if (iotimer_addr == NULL) {
-	    if (tries++ > 1) {
-	        /* Don't keep trying if it didn't work */
-	        return 0;
-	    }
-
-	    /*
-	    ** For SGI machines we can use the cycle counter, if it has one,
-	    ** to generate some truly random numbers
-	    */
-	    phys_addr = syssgi(SGI_QUERY_CYCLECNTR, &cycleval);
-	    if (phys_addr) {
-	        int pgsz = getpagesize();
-	        int pgoffmask = pgsz - 1;
-
-	        raddr = phys_addr & ~pgoffmask;
-	        mfd = open("/dev/mmem", O_RDONLY);
-	        if (mfd < 0) {
-    		    return 0;
-	        }
-	        iotimer_addr = (unsigned *)
-		    mmap(0, pgoffmask, PROT_READ, MAP_PRIVATE, mfd, (int)raddr);
-	        if (iotimer_addr == (unsigned*)-1) {
-	    	    close(mfd);
-		        iotimer_addr = NULL;
-		        return 0;
-	        }
-	        iotimer_addr = (unsigned*)
-		    ((__psint_t)iotimer_addr | (phys_addr & pgoffmask));
-	        /*
-	         * The file 'mfd' is purposefully not closed.
-	         */
-	        cntr_size = syssgi(SGI_CYCLECNTR_SIZE);
-	        if (cntr_size < 0) {
-    		    struct utsname utsinfo;
-
-		        /* 
-		         * We must be executing on a 6.0 or earlier system, since the
-		         * SGI_CYCLECNTR_SIZE call is not supported.
-		         * 
-		         * The only pre-6.1 platforms with 64-bit counters are
-		         * IP19 and IP21 (Challenge, PowerChallenge, Onyx).
-		         */
-		        uname(&utsinfo);
-		        if (!strncmp(utsinfo.machine, "IP19", 4) ||
-		            !strncmp(utsinfo.machine, "IP21", 4))
-			        cntr_size = 64;
-		        else
-			        cntr_size = 32;
-	        }
-	        cntr_size /= 8;	/* Convert from bits to bytes */
-	    }
-    }
-
-    s0[0] = *iotimer_addr;
-    if (cntr_size > 4)
-	s0[1] = *(iotimer_addr + 1);
-    memcpy(buf, (char *)&s0[0], cntr_size);
-    return _pr_CopyLowBits(buf, maxbuf, &s0, cntr_size);
-}
-
-#elif defined(SCO) || defined(UNIXWARE) || defined(BSDI) || defined(NTO) \
-    || defined(QNX) || defined(DARWIN) || defined(RISCOS)
-#include <sys/times.h>
-
-static size_t
-GetHighResClock(void *buf, size_t maxbytes)
-{
-    int ticks;
-    struct tms buffer;
-
-    ticks=times(&buffer);
-    return _pr_CopyLowBits(buf, maxbytes, &ticks, sizeof(ticks));
-}
-#else
-#error! Platform undefined
-#endif /* defined(SOLARIS) */
-
-extern PRSize _PR_MD_GetRandomNoise( void *buf, PRSize size )
-{
-    struct timeval tv;
-    int n = 0;
-    int s;
-
-    n += GetHighResClock(buf, size);
-    size -= n;
-
-    GETTIMEOFDAY(&tv);
-
-    if ( size > 0 ) {
-        s = _pr_CopyLowBits((char*)buf+n, size, &tv.tv_usec, sizeof(tv.tv_usec));
-        size -= s;
-        n += s;
-    }
-    if ( size > 0 ) {
-        s = _pr_CopyLowBits((char*)buf+n, size, &tv.tv_sec, sizeof(tv.tv_usec));
-        size -= s;
-        n += s;
-    }
-
-    return n;
-} /* end _PR_MD_GetRandomNoise() */