X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/9bccf70c0258c7cac2dcb80011b2a964d884c552..5d5c5d0d5b79ade9a973d55186ffda2638ba2b6e:/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 fa4ab5fec..01b27f6bd 100644
--- a/bsd/dev/random/YarrowCoreLib/src/prng.c
+++ b/bsd/dev/random/YarrowCoreLib/src/prng.c
@@ -1,23 +1,31 @@
 /*
  * Copyright (c) 1999, 2000-2001 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
  * 
- * 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 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 OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
+ * 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.  The rights granted to you under the 
+ * License may not be used to create, or enable the creation or 
+ * redistribution of, unlawful or unlicensed copies of an Apple operating 
+ * system, or to circumvent, violate, or enable the circumvention or 
+ * violation of, any terms of an Apple operating system software license 
+ * agreement.
+ *
+ * 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 
+ * 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.
+ *
+ * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
  */
 
 /*
@@ -182,9 +190,10 @@ 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) 
@@ -340,8 +349,8 @@ 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;
@@ -357,15 +366,11 @@ 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);
@@ -390,9 +395,10 @@ 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);
@@ -479,7 +485,7 @@ 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;
@@ -516,13 +522,15 @@ 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);