X-Git-Url: https://git.saurik.com/apple/security.git/blobdiff_plain/80e2389990082500d76eb566d4946be3e786c3ef..d8f41ccd20de16f8ebe2ccc84d47bf1cb2b26bbb:/Security/libsecurity_cryptkit/lib/platform.c

diff --git a/Security/libsecurity_cryptkit/lib/platform.c b/Security/libsecurity_cryptkit/lib/platform.c
new file mode 100644
index 00000000..fa6c1b2e
--- /dev/null
+++ b/Security/libsecurity_cryptkit/lib/platform.c
@@ -0,0 +1,197 @@
+/* Copyright (c) 1998,2011,2014 Apple Inc.  All Rights Reserved.
+ *
+ * NOTICE: USE OF THE MATERIALS ACCOMPANYING THIS NOTICE IS SUBJECT
+ * TO THE TERMS OF THE SIGNED "FAST ELLIPTIC ENCRYPTION (FEE) REFERENCE
+ * SOURCE CODE EVALUATION AGREEMENT" BETWEEN APPLE, INC. AND THE
+ * ORIGINAL LICENSEE THAT OBTAINED THESE MATERIALS FROM APPLE,
+ * INC.  ANY USE OF THESE MATERIALS NOT PERMITTED BY SUCH AGREEMENT WILL
+ * EXPOSE YOU TO LIABILITY.
+ ***************************************************************************
+ *
+ * platform.c - platform-dependent C functions
+ *
+ * Revision History
+ * ----------------
+ *  6 Sep 96 at NeXT
+ *	Created.
+ */
+
+#include "platform.h"
+#include <stdio.h>
+#include "feeDebug.h"
+#ifdef	NeXT
+
+/*
+ * OpenStep....
+ */
+void CKRaise(const char *reason) {
+	#if	FEE_DEBUG
+	printf("CryptKit fatal error: %s\n", reason);
+	#endif
+	exit(1);
+}
+
+#import "feeDebug.h"
+
+#if !defined(NeXT_PDO) && FEE_DEBUG
+
+/*
+ * Mach, private build. use quick microsecond-accurate system clock.
+ */
+
+#include <kern/time_stamp.h>
+
+unsigned createRandomSeed()
+{
+	struct tsval tsp;
+
+	(void)kern_timestamp(&tsp);
+	return tsp.low_val;
+}
+
+#else
+
+/*
+ * OpenStep, normal case.
+ */
+#include <sys/types.h>
+#include <time.h>
+
+extern int getpid();
+
+unsigned createRandomSeed(void)
+{
+	time_t curTime;
+	unsigned thisPid;
+
+  	time(&curTime);
+	thisPid = (unsigned)getpid();
+
+	return (unsigned)curTime ^ (unsigned)thisPid;
+}
+
+#endif	/* FEE_DEBUG */
+
+#elif	WIN32
+
+/*
+ * OpenStep on Windows.
+ */
+#include <process.h>	/* for _getpid() */
+
+void CKRaise(const char *reason) {
+	#if	FEE_DEBUG
+	printf("CryptKit fatal error: %s\n", reason);
+	#endif
+	exit(1);
+}
+
+extern void time(unsigned *tp);
+
+unsigned createRandomSeed()
+{
+	unsigned curTime;
+	unsigned thisPid;
+
+  	time(&curTime);
+	thisPid = _getpid();
+	return (unsigned)curTime ^ (unsigned)thisPid;
+}
+
+
+#elif	__MAC_BUILD__
+
+/*
+ * Macintosh, all flavors.
+ */
+#include <stdlib.h>
+#include <time.h>
+
+void CKRaise(const char *reason) {
+	#if	FEE_DEBUG
+	printf("CryptKit fatal error: %s\n", reason);
+	#endif
+	exit(1);
+}
+
+/* for X, this isn't used except for testing when SecurityServer when
+ * Yarrow is not running. So let's strip it down so we don't have
+ * to link against CarbonCore. 
+ */
+#define BARE_BONES_SEED		1
+#if 	BARE_BONES_SEED
+
+#include <sys/types.h>
+
+extern int getpid();
+
+unsigned createRandomSeed()
+{
+	time_t curTime;
+	unsigned thisPid;
+
+  	time(&curTime);
+	thisPid = (unsigned)getpid();
+
+	return (unsigned)curTime ^ (unsigned)thisPid;
+}
+
+#else	/* BARE_BONES_SEED */
+
+#include <CoreServices/../Frameworks/CarbonCore.framework/Headers/Timer.h>
+#include <CoreServices/../Frameworks/CarbonCore.framework/Headers/LowMem.h>
+
+// this is mighty pitiful anyway...
+unsigned createRandomSeed()
+{
+	UnsignedWide curTime;		
+	//unsigned ticks;				/* use 16 bits */
+	unsigned rtnHi;
+	unsigned rtnLo;
+	
+	/* FIXME - need a way to distinguish OS9x from Carbon. Carbon
+	 * doesn't have LMGetTicks(). */
+	 
+	Microseconds(&curTime);		/* low 16 bits are pretty good */
+
+	// Carbon hack
+	// rtnHi = LMGetTicks();
+	rtnHi = 0x5a5aa5a5;
+	rtnLo = curTime.lo & 0xffff;
+	return (rtnHi ^ rtnLo);
+}
+#endif	/* BARE_BONES_SEED */
+
+#elif unix
+
+/* try for generic UNIX */
+
+void CKRaise(const char *reason) {
+	#if	FEE_DEBUG
+	printf("CryptKit fatal error: %s\n", reason);
+	#endif
+	exit(1);
+}
+
+#include <sys/types.h>
+#include <time.h>
+
+extern int getpid();
+
+unsigned createRandomSeed()
+{
+	time_t curTime;
+	unsigned thisPid;
+
+  	time(&curTime);
+	thisPid = (unsigned)getpid();
+
+	return (unsigned)curTime ^ (unsigned)thisPid;
+}
+
+
+#else
+
+#error platform-specific work needed in security_cryptkit/platform.c
+
+#endif