xnu-792.tar.gz

[apple/xnu.git] / bsd / dev / random / YarrowCoreLib / src / prng.c

diff --git a/bsd/dev/random/YarrowCoreLib/src/prng.c b/bsd/dev/random/YarrowCoreLib/src/prng.c
index aaf58cbaa8f2f2295f2fd927d0f69120aa92c0bd..e2ba0a2ee06ec5cffe38eda71ada8a189379d8d1 100644 (file)
--- a/bsd/dev/random/YarrowCoreLib/src/prng.c
+++ b/bsd/dev/random/YarrowCoreLib/src/prng.c
@@ -3,22 +3,19 @@
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
  * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
  * 
  * @APPLE_LICENSE_HEADER_END@
  */
@@ -185,9 +182,10 @@ cleanup_slow_init:
 
 /* In-place modifed bubble sort */
 static void 
-bubbleSort(UINT *data,UINT len) 
+bubbleSort( UINT *data, LONG len ) 
 {
-       UINT i,last,newlast,temp;
+       LONG    i,last,newlast;
+       UINT    temp;
 
        last = len-1; 
        while(last!=-1) 
@@ -343,8 +341,8 @@ prngForceReseed(PRNG *p, LONGLONG ticks)
 #if    defined(macintosh) || defined(__APPLE__)
        #if             (defined(TARGET_API_MAC_OSX) || defined(KERNEL_BUILD))
                struct timeval  tv;             
-               int32_t                 endTime;
-       #else   TARGET_API_MAC_CARBON
+               int64_t                 endTime, curTime;
+       #else   /* TARGET_API_MAC_CARBON */
                UnsignedWide    uwide;          /* struct needed for Microseconds() */
                LONGLONG                start;
                LONGLONG                now;
@@ -360,15 +358,11 @@ prngForceReseed(PRNG *p, LONGLONG ticks)
                #if             (defined(TARGET_API_MAC_OSX) || defined(KERNEL_BUILD))
                        /* note we can't loop for more than a million microseconds */
             #ifdef KERNEL_BUILD
-                microtime (&tv);
+                microuptime (&tv);
             #else
                 gettimeofday(&tv, NULL);
             #endif
-                       endTime = tv.tv_usec + ticks;
-                       if(endTime > 1000000) {
-                               /* handle rollover now */ 
-                               endTime -= 1000000;
-                       }
+                       endTime = (int64_t)tv.tv_sec*1000000LL + (int64_t)tv.tv_usec + ticks;
                #else   /* TARGET_API_MAC_OSX */
                        Microseconds(&uwide);
                        start = UnsignedWideToUInt64(uwide);
@@ -393,9 +387,10 @@ prngForceReseed(PRNG *p, LONGLONG ticks)
         #ifdef TARGET_API_MAC_OSX
             gettimeofday(&tv, NULL);
         #else
-            microtime (&tv);
+            microuptime (&tv);
+           curTime = (int64_t)tv.tv_sec*1000000LL + (int64_t)tv.tv_usec;
         #endif
-       } while(tv.tv_usec < endTime);
+       } while(curTime < endTime);
        #else
                Microseconds(&uwide);
                now = UnsignedWideToUInt64(uwide);
@@ -482,7 +477,7 @@ prngStretch(BYTE *inbuf,UINT inbuflen,BYTE *outbuf,UINT outbuflen) {
 
 /* Add entropy to the PRNG from a source */
 prng_error_status
-prngInput(PRNG *p, BYTE *inbuf,UINT inbuflen,UINT poolnum,UINT estbits) 
+prngInput(PRNG *p, BYTE *inbuf,UINT inbuflen,UINT poolnum, __unused UINT estbits)
 {
        #ifndef YARROW_KERNEL
        comp_error_status resp;
@@ -519,13 +514,15 @@ prng_error_status
 prngAllowReseed(PRNG *p, LONGLONG ticks) 
 {
        UINT temp[TOTAL_SOURCES];
-       UINT i,sum;
+       LONG i;
+       UINT sum;
 #ifndef KERNEL_BUILD
        float ratio;
 #endif
 
+#ifndef KERNEL_BUILD
        comp_error_status resp;
-
+#endif
 
        CHECKSTATE(p);