Upgraded to openssl-1.0.2

1 files changed, 63 insertions, 68 deletions

diff --git a/openssl/crypto/constant_time_locl.h b/openssl/crypto/constant_time_locl.h
index c0483939f..c786aea94 100644
--- a/openssl/crypto/constant_time_locl.h
+++ b/openssl/crypto/constant_time_locl.h
@@ -1,5 +1,5 @@
 /* crypto/constant_time_locl.h */
-/*
+/*-
  * Utilities for constant-time cryptography.
  *
  * Author: Emilia Kasper (emilia@openssl.org)
@@ -45,15 +45,15 @@
  */
 
 #ifndef HEADER_CONSTANT_TIME_LOCL_H
-#define HEADER_CONSTANT_TIME_LOCL_H
+# define HEADER_CONSTANT_TIME_LOCL_H
 
-#include "e_os.h"  /* For 'inline' */
+# include "e_os.h"              /* For 'inline' */
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-/*
+/*-
  * The boolean methods return a bitmask of all ones (0xff...f) for true
  * and 0 for false. This is useful for choosing a value based on the result
  * of a conditional in constant time. For example,
@@ -83,14 +83,16 @@ static inline unsigned int constant_time_msb(unsigned int a);
  */
 static inline unsigned int constant_time_lt(unsigned int a, unsigned int b);
 /* Convenience method for getting an 8-bit mask. */
-static inline unsigned char constant_time_lt_8(unsigned int a, unsigned int b);
+static inline unsigned char constant_time_lt_8(unsigned int a,
+                                               unsigned int b);
 
 /*
  * Returns 0xff..f if a >= b and 0 otherwise.
  */
 static inline unsigned int constant_time_ge(unsigned int a, unsigned int b);
 /* Convenience method for getting an 8-bit mask. */
-static inline unsigned char constant_time_ge_8(unsigned int a, unsigned int b);
+static inline unsigned char constant_time_ge_8(unsigned int a,
+                                               unsigned int b);
 
 /*
  * Returns 0xff..f if a == 0 and 0 otherwise.
@@ -99,20 +101,19 @@ static inline unsigned int constant_time_is_zero(unsigned int a);
 /* Convenience method for getting an 8-bit mask. */
 static inline unsigned char constant_time_is_zero_8(unsigned int a);
 
-
 /*
  * Returns 0xff..f if a == b and 0 otherwise.
  */
 static inline unsigned int constant_time_eq(unsigned int a, unsigned int b);
 /* Convenience method for getting an 8-bit mask. */
-static inline unsigned char constant_time_eq_8(unsigned int a, unsigned int b);
+static inline unsigned char constant_time_eq_8(unsigned int a,
+                                               unsigned int b);
 /* Signed integers. */
 static inline unsigned int constant_time_eq_int(int a, int b);
 /* Convenience method for getting an 8-bit mask. */
 static inline unsigned char constant_time_eq_int_8(int a, int b);
 
-
-/*
+/*-
  * Returns (mask & a) | (~mask & b).
  *
  * When |mask| is all 1s or all 0s (as returned by the methods above),
@@ -120,97 +121,91 @@ static inline unsigned char constant_time_eq_int_8(int a, int b);
  * (if |mask| is zero).
  */
 static inline unsigned int constant_time_select(unsigned int mask,
-	unsigned int a, unsigned int b);
+                                                unsigned int a,
+                                                unsigned int b);
 /* Convenience method for unsigned chars. */
 static inline unsigned char constant_time_select_8(unsigned char mask,
-	unsigned char a, unsigned char b);
+                                                   unsigned char a,
+                                                   unsigned char b);
 /* Convenience method for signed integers. */
 static inline int constant_time_select_int(unsigned int mask, int a, int b);
 
 static inline unsigned int constant_time_msb(unsigned int a)
-	{
-	return (unsigned int)((int)(a) >> (sizeof(int) * 8 - 1));
-	}
+{
+    return 0 - (a >> (sizeof(a) * 8 - 1));
+}
 
 static inline unsigned int constant_time_lt(unsigned int a, unsigned int b)
-	{
-	unsigned int lt;
-	/* Case 1: msb(a) == msb(b). a < b iff the MSB of a - b is set.*/
-	lt = ~(a ^ b) & (a - b);
-	/* Case 2: msb(a) != msb(b). a < b iff the MSB of b is set. */
-	lt |= ~a & b;
-	return constant_time_msb(lt);
-	}
+{
+    return constant_time_msb(a ^ ((a ^ b) | ((a - b) ^ b)));
+}
 
 static inline unsigned char constant_time_lt_8(unsigned int a, unsigned int b)
-	{
-	return (unsigned char)(constant_time_lt(a, b));
-	}
+{
+    return (unsigned char)(constant_time_lt(a, b));
+}
 
 static inline unsigned int constant_time_ge(unsigned int a, unsigned int b)
-	{
-	unsigned int ge;
-	/* Case 1: msb(a) == msb(b). a >= b iff the MSB of a - b is not set.*/
-	ge = ~((a ^ b) | (a - b));
-	/* Case 2: msb(a) != msb(b). a >= b iff the MSB of a is set. */
-	ge |= a & ~b;
-	return constant_time_msb(ge);
-	}
+{
+    return ~constant_time_lt(a, b);
+}
 
 static inline unsigned char constant_time_ge_8(unsigned int a, unsigned int b)
-	{
-	return (unsigned char)(constant_time_ge(a, b));
-	}
+{
+    return (unsigned char)(constant_time_ge(a, b));
+}
 
 static inline unsigned int constant_time_is_zero(unsigned int a)
-	{
-	return constant_time_msb(~a & (a - 1));
-	}
+{
+    return constant_time_msb(~a & (a - 1));
+}
 
 static inline unsigned char constant_time_is_zero_8(unsigned int a)
-	{
-	return (unsigned char)(constant_time_is_zero(a));
-	}
+{
+    return (unsigned char)(constant_time_is_zero(a));
+}
 
 static inline unsigned int constant_time_eq(unsigned int a, unsigned int b)
-	{
-	return constant_time_is_zero(a ^ b);
-	}
+{
+    return constant_time_is_zero(a ^ b);
+}
 
 static inline unsigned char constant_time_eq_8(unsigned int a, unsigned int b)
-	{
-	return (unsigned char)(constant_time_eq(a, b));
-	}
+{
+    return (unsigned char)(constant_time_eq(a, b));
+}
 
 static inline unsigned int constant_time_eq_int(int a, int b)
-	{
-	return constant_time_eq((unsigned)(a), (unsigned)(b));
-	}
+{
+    return constant_time_eq((unsigned)(a), (unsigned)(b));
+}
 
 static inline unsigned char constant_time_eq_int_8(int a, int b)
-	{
-	return constant_time_eq_8((unsigned)(a), (unsigned)(b));
-	}
+{
+    return constant_time_eq_8((unsigned)(a), (unsigned)(b));
+}
 
 static inline unsigned int constant_time_select(unsigned int mask,
-	unsigned int a, unsigned int b)
-	{
-	return (mask & a) | (~mask & b);
-	}
+                                                unsigned int a,
+                                                unsigned int b)
+{
+    return (mask & a) | (~mask & b);
+}
 
 static inline unsigned char constant_time_select_8(unsigned char mask,
-	unsigned char a, unsigned char b)
-	{
-	return (unsigned char)(constant_time_select(mask, a, b));
-	}
+                                                   unsigned char a,
+                                                   unsigned char b)
+{
+    return (unsigned char)(constant_time_select(mask, a, b));
+}
 
-inline int constant_time_select_int(unsigned int mask, int a, int b)
-	{
-	return (int)(constant_time_select(mask, (unsigned)(a), (unsigned)(b)));
-	}
+static inline int constant_time_select_int(unsigned int mask, int a, int b)
+{
+    return (int)(constant_time_select(mask, (unsigned)(a), (unsigned)(b)));
+}
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif  /* HEADER_CONSTANT_TIME_LOCL_H */
+#endif                          /* HEADER_CONSTANT_TIME_LOCL_H */